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See Thru Liquid Piston Rotary Engine - In Slow Motion
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- Опубликовано: 14 авг 2024
- I Run The Liquid Piston Rotary Engine in Slow Motion with all the Inventors and Engineers at LiquidPiston (A Worlds First) to see what is happening inside this new revolutionary Rotary Engine While it's running and how it's so much different than the Wankel Rotary Engine produced by Mazda for the RX7.
This engine reminds me of the Mazda Wankle rotary engine but the difference is it seems like they have solved all of the issues that the Mazda engine had.
I am very excited to see where this engine is going I would love to see this thing powering a car because the power to weight ratio is absolutely insane and the thermal efficiency is out of this world.
definitely check out my other channel for all of the interviews from the inventors and going over the previous versions of this engine.
*Cleared For Public Release
INFO AND LINKS
LiquidPiston Engine: bit.ly/LiquidPi...
High Efficiency Hybrid Cycle: en.wikipedia.o...
Otto Cycle: en.wikipedia.o...
Atkinson Cycle: en.wikipedia.o...
Diesel Cycle: en.wikipedia.o...
CHAPTERS
00:00 Intro
00:41 Cutting Parts WaterJet
01:07 Arriving at LiquidPiston
01:26 LiquidPiston Inventors
01:56 How LiquidPiston Works
04:58 See-Thru LiquidPiston Assembled
06:11 1St Run on Propane
07:15 2nd Run On Propane Lights Off
08:29 Run On Acetelyne
09:40 Run on Gasoline
11:10 outro and Follow-Up
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☢ ► IMDB: www.imdb.com/ti...
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Please leave any opinions suggestions or comments Below and don't forget to check out our other videos and subscribe, Thank you.
Watch this in 4k when possible, it looks incredibly awesome !
Carbon 12
www.c12.tv
Produced By: Carbon 12
Directed By: Matt Mikka
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I was a Mazda service manager at a dealership back in the day, and the biggest problem we saw with the RX7's was that the owners babied them. They didn't run the engine at high enough RPM's to clear the carbon build up on the original 7 piece apex seals. When they got towed in all locked up, my head shop mechanic would break them loose with a wrench, get them started running really roughly, then literally put a brick on the gas pedal and go to lunch. They would blow huge clouds of smoke for a while, then start to smooth out, then gradually clean out and end up running great! I might have already sold the customer a new engine, only to find out the engine now ran just fine. Saved the owners a lot of money!
Water worked really good for breaking up the carbon. I had a 12A that was babied its whole life, and it was all sorts of carboned up, got a gallon of water, put a water injection jet on a hose, and held it at 4 grand spraying at 2 second bursts. I was amazed how much carbon literally came off of this engine. I stuck a camera in there and it was nearly spotless.
Wasn't the original maintenance recommendation for the older 12As were to rev it to the moon once in a while? I seem to recall an old 70's documentary talking about this. No wonder people loved the damn thing even during the Oil Crisis lol
Babied Jaguar twin cam engines (1960's) liked a good high rev full power hill climb every now and again to get rid of the cobwebs.
Hey GR, when I read your comment I laughed. I had a '91 RX7 Convertible and I was careful to blow out the carbon every chance I could! That car might not have been the fastest top end car I ever owned (I think my 300ZX was faster) but I never had a car that was as quick. Punching it while entering a freeway onramp meant entering the gray area between exhilaration and soiling one's pants.
You'll be glad to hear that I was frequently running my first gen Rx7 near redline.
I worked for Mazda N.A. for over 14 years and assembled (by my calculations) about seven thousand rotary engines and assembled thousands of rotors and associated assemblies. This was over twenty five years ago and I'm very pleased to see that the rotary engine has advanced to this incredible engine. It appears that you have found solutions to the apex seal , side seals and the eccentric shaft. Three combustions in one revaluation instead of just one. Truly amazing. Congratulations. Now make it bigger. Thanx
I kept getting ads looking for investors from these guys. The ads said they're developing a version to compete with the engines used in OTR trucks
Keith romig how well woud an egine like this go if mazda disided to go with an engine disighn like this
The fact that that is a unique design I'm sure Mazda would be impressed but that type of motor would be better for some other application. It's just too small for an automobile.
I may need to get ahold of you for my fc engine rebuild
@@keithromig957 I see no reason it can’t be scaled up to car size ?
Incredible and amazing. Took my breath away with this. I always thought someone would find a way and have waited 58 years for this.
-----> I hope You survived ....-------------------------> ... " took my breath away ...." - mine NOT !!!
11 bucks per share. Came here after seeing an investment ad lol
This technology is pure genius. What is takes to design a system like this is astounding. The criticality of the tolerances and the synchronization of everything to make this all work is beyond awesome. My hats off to all involved here. I have a very technical mind but it pales in comparison to those involved with the technolgy featured in this video.
You'd be surprised how easy it is
I inherited a 1980 RX-7 with a rotary engine soon after starting college. I'd worked on tons of 60s and 70s cars at that point in my life, rebuilding about 30 engines. I had no idea what or how rotary engines worked so I ask my Math professor and he sent me directly to the Engineering department. I was lucky enough to talk to two professors who were also rotary engine owners and fans of the technology. After a few talks they both strongly suggested I switch my course of study from Math to Engineering and I did just that. I had an amazing career as a mechanical design engineer working for NASA, the DoD and other Aerospace firms across the country and around the world. I have the rotary engine to thank for all that.
Thanks for sharing that and what a lovely story.
What a lovely story
@@rozanpratama5536 m9o.9.9ko9k
I was thinking about going into mechanical engineering.
The wankel rotary blew my mind when I first learned of it. It seemed like alien technology to me because I am of slightly below average intelligence.
The fact that you gave credit to the engineers at the last was a great gesture man ❤️
Thanks! Engineers never get enough credit, have you ever heard of SpaceX or Tesla? Let's not forget about Apple...lol.
Engineer gaming
@@WarpedPerception bUt bUt bUt eLoN mUsK iS a GeNiUs. He'S tHe eNgiNeEr bEhiNd aLL tHe stUff sPacE x dOeS. LOL. Every normie that thinks Elon is some mastermind genius savant.
@@WarpedPerception Yeah its really sad hardly no one knows the true geniuses behind the things coming into the market past and present.
Gracious, unlike Elon Musk.
That was very commendable to give credit to the engineers at the end. I still feel pound-for-pound that this lightweight rotary engine can be used in many applications today, perhaps on motorbikes and gocarts.
There actually was a motorcycle that had a rotary. I don't remember the name off the top of my head
@@davidpoole7098 A Suzuki RE5, but it was very short lived though. I have seen them in person.
@@mustang32758 I have a 75 RE5, I was building a bike t9 run on the Bonneville salt 🧂 Flatts with a goal of 200mph..from Wyoming USA 🇺🇸 🤠
@@davidpoole7098 At one time there was a chainsaw that had a rotary engine. IIRC it was run in two-cycle mode, and was offered by Husqvarna.
@@davidpoole7098 a suzuki re5 and a Norton
These engines are very exciting. Not just for solving the seal issues, but because the geometry makes high compressions possible.
This is very very interesting. But, two things: piston top sealing (usually a great challenge) and valve timing (necessary to compensate for charge and velocity variations). A turbocharges may bring some benefits ...
@@vabels54 what the fuck are you talking about? This engine has neither piston nor valve.
If they are able to get high compression, would it be able to run on diesel?
@@hexvoodoo2797 Yeah, absolutely. He mentions it in the video.
Awesome!!! Hoping to see more videos on this!
buy one and run it with bacon grease for oil lol
yep same :D
Were gunna test that
I was waiting for you this time...lol, this engine seemed like something you would like, bacon Grease liquid Piston Engine sounds awesome !.
Белых все меньше и меньше
LOL so the chamber looks like the rotor and the rotor looks like a chamber, that's CRAZY cool!!
Yeah like inside out
This is exactly what I thought too! What a way to think outside the box and look at things from a different perspective lol
I've been following and SUPPORTING since last year. Coming Along GREAT
I would LOVE to see a full size heavy duty (500+hp) diesel version of this engine.
A typical diesel engine is already a simple engine and this one doesn't even have a cam shaft and valves to run! Only down side is lack of engine breaking in this configuration.
No more doritos rotor, and welcome the new pringles rotor
Reject dorito, embrace pringle
NOW WE HAVE A BEANtm ROTOR!!!!
dorito is now a pringle
Im now going to watch a moive woth prongles lol
Mang Ade, did u gor sumthin bout a rotor
FIrstly we had a dorito spin inside an oval...Now we have an oval spin inside a dorito. Thats great!!!
*Uno reverse card*
Onu
Wankel designed his engine back asswards.
Of all the comments I've looked at, I haven't seen the simplest, most basic questions: What is the working displacement? What rpm range does it operate at? How much hp and torque does it make, and what is the powerband like?
"4hp" is stated though none of your other questions seem answered.
The moving parts seem lightweight & moving with low acceleration compared with piston engines so I would expect very high RPMs to be possible, maybe painfully high pitches or even ultrasonic, especially if the exhausts are combined into one.
Geometrically :very high compression ratio, but achievable depends on the seal leakage. They were not able to obtain compression ratios to achieve compression ignition, For the demonstration the use methane and spark ignition.
The real problem is the peripheral face seal at the corner designed to seal the front and rear walls.
The problem Cooley had after he invented exactly this in 1903.
Incidently, Cooley also had a two and a four lobe design, later expanded with 5, 6 and more lobes.
Erik, The mathematical treatment for the ideal trochoid is simple, as far as displacement is of interest, The rpm is limited by the structural design of the seal, where the inflection is hard to stiffen due to the centrifugal load.
Power is proportional to the product of average torque and rpm.
P = T × rpm × 2π/60. S I units
Thanks for the informative comment, it is nice to read something other than 'omg this is the best engine ever'... because it simply isn't. It's an interesting final year engineering project, and perhaps a nice gimmick to get some silly investors to part with their money. Anyone with a rudimentary understanding of reciprocating ICEs and the design improvements & considerations of the past 50 years should be able to spot issues with this design that simply cannot be overcome. @@Arturo-lapaz
0:51 - I recognize that tunnel on the merit parkway in Woodbridge ct. You went right by me!
Cool tunnel !
these dudes really threw away the whole book and started from scratch, this is INSANE
Looks like they turned a rotary engine inside out.
Exactly what they did.
@@JesusisJesus geometry is a wonderful thing
Welcome to the new age. Salud.
@@fishglowinthedark5769 exactly, who knew someone would reinvent the Rotary Engine in the 2000's.
After watching this I realized that the design of the rotor looks like the walls of a conventional rotary engine. It’s basically a Wankel rotary that’s inside out ?
Yup, I interviewed the inventors and they address that topic, he's a physicist and he says that Wankle knew about those shapes but he could not seal them properly for some reason, I'm putting those vids up on my other channel soon.
I'm thinking that the vibration of the engine will become a problem unless they find a way to compensate it.
@@dingdong2103 just add more rotors lol
there are many additional ways to cancel out vibrations as well
I had that same thought too. The Wankel rotor shape is now the housing and the Wankel housing shape is now the rotor!
Very good. There's still one issue with the rotory being the thermal losses. This engine is a great improvement on the Mazda technology, and the power to weight ratio will always be the key to its success.
As an engineer in my mid sixties and with thousands of deployed team designed and implemented products worldwide, I appreciate the recognition of the role the team has had. With one exception (Kobe, Japan) our team has never received recognition beyond a one-time casual verbal congratulations at the time of delivery although the efforts were always beyond role descriptions (in most cases, salary is just a byproduct of the passion the team members have invested, by far not reflecting their true engagement and the outcome value).
The big difference, is that your work enabled a company to trade profitably, and as such, you received a different form of recognition - renumeration. Its highly unlikely this team will make it that far (the design is has severe limitations to the point it is unlikely to even find a niche), so those kind words are especially valued.
They're gonna come into work one morning and find Rob Dahm camped on their doorstep with a sign saying "I'm not leaving until you tell me EVERYTHING". :)
Great video, and some really interesting development work by these guys. Talented engineers. 👍
He'll buy 3 of those and make a LP9 rotor! Lol
Better off going to mech tech college in Puerto Rico . They really know about rotarys
@@Toxic88088 He just better not ship them through UPS. LOL
@@dirtyd2316 hahaha
I think the crank would fail.
"propane is lame!"
*hank hill materializes to kick your ass*
Hahaha!!
Hank Hill🤣🤣👌🏼
He's going to spank him with some propane accessories.
We all heard that in Hank Hill's voice.
Honestly we all needed it!
@@Highway_Chronicles *Pro pain
Excited to see where the R&D takes this!
I never heard the liquid rotor engine until now. Sounds like heaven! I love that sound.
Im pretty sure this is a revolution in the rotary engine world, it would be cool to see a bigger version inside a car. Great job!
My guess this is for smaller application lawnmowers weedwackers maybe Go-Karts
@@nightmareinaction629 Try again - drones, APUs for military and potentially more. They have only put one on a gokart as a demo. Not on market yet, but easily upscaled.
@@FukU2222 yeah would love to see this upscale and used
How about a rx-9🌚
@@racingjets1 🌚
I've always loved the way the rotary engine worked, it's just so cool. I hope these guys are able to continue developing this cool technology
I feel like it needs the explosive side of the chamber to be offset to redirect the energy of combustion better.
Right now it seems to be partially fighting itself with every combustion cycle.
@@ralphwarom2514 very tru. It’s spending a good amount of energy pushing the roter toward the center instead of turning it
Invented in 1903 by Cooley, not very honest claiming his invention as new.
This demo was not a "powering itself demo" it was being turnes by the electric motor it was directly connected to and being fed combutionable fuels for visual stimulation only*
A very interesting concept, and great camera work showing the slowmo and inside. However this is just a wankel rotary with some topology changes. Does not avoid the problem of burning oil, and that rotor will be hard to cool and thus intake air is gonna be higher temperature reducing efficiency. Compression ratio can still be a problem, Apex seal problem is also not really fixed (but can potentially be serviced easier). Also torque might be even more of a problem than wankel, just look at that power stroke. Multi rotor design might be harder due to the shaft intake as well
Intake through the shaft adds a rather restrictive intake path as well which will hurt power.
@@Surestick88 Might need a supercharger or turbo. But it looks like some of the power stroke is wasted pushing the wrong way on the rotor.
Its truly an inside out wankel. A dorito with a spinning oval
@@larryvaughn5843 Surely you can say the same for a piston engine with ignition or even steam entry being in advance of reaching top dead centre. Edit: Interesting fact that some Great Western Railway locomotives from what I remember with Stephenson link valve settings had negative lead in full gear to help starting as if one of the pistons was in its initial steam entry it would fight the other cylinder or cylinders and try to go backwards. The lead would come in at shorter cut offs when it would be needed.
@@michaeld5888 I had a 2 stroke motorcycle that would occasionally start and run backwards due to the ignition advance and high compression.
This idea is outstanding, a concept so beautiful in its simplicity, it's not surprising the little beast is so sexi. A lot of work has gone into showing us this, I think the see-thru engine cover is MAGIC!
Nice one guys! 🌟👍
Wankel: Doritos inside peanut
Liquid Piston: Peanut inside Doritos
you make a good point. that's really interesting the geometry is inverted
Sort of yes, except that the Wankel housing really is peanut-shaped, meaning bigger at the ends than in the middle (it's technically a two-lobed epitrochoid), while this rotor is a simple oval (semi-circular ends connected by straight sides). Similarly, the Wankel rotor can be a simple Dorito-like triangle (although in practice the sides are usually circular arcs, which is a Reuleaux triangle, to increase the compression ratio), while this engine has a rounded three-lobed housing. They're related, but not the same shapes.
Your comment makes me hungry
Dorito inside potatoe
Potatoe inside Dorito
thanks now i finally understad the stuf
I am here from your community post. The audio and video quality are unbelievable for a 51 year old video.
Lol..... Ahead of it's time apparently.
I autocrossed a ‘79 RX7 for several years in the 80s. SK side draft carbs and headers. I never had to go into the short block. Dead reliable and a lot of fun!
Wow, this is amazing, its like the rotor and housing are switched! Its something you can see often in electric engines, but figuring this out for rotary engines is a beautifull thing
Interesting design which is good because it gets rid of the unequal heat distribution of the Mazda Felix Wankel design but this design probably still suffers from less torque than a typical piston engine and probably suffers even worse from excessive surface to volume ratio which in any case could be circumvented with direct injection if you go to that route.
Even if this doesn't prove to be revolutionary or anything like that, thoughtful, deliberate experimentation and transparent exposition of results can never be wasted effort. One can learn from experiments that go wrong almost as much as the ones that go right. Also, solutions that don't scale are still solutions one can build on in different ways.
just rich people playing with models feeling smarter.
@@siov4279 without those rich people playing with models you wouldn't even have any combustion engine in the first place. If you have to work 10h a day in a farm or in a mine, sure you're less likely to design a new type of engine or any invention. At some point you need to have someone ready to risk his money and/or time with a small chance of success.
@@geemy9675 Burn Steve
@@siov4279 rich people? Did you see them?
@@siov4279 couldn't agree more boyo,,eight years and
$400 million later, they unveil a 4hp bench top see through engine.....
AMAZING!!!!! "It's like magic". magical they say,,,,,,like unicorns and pots o gold near rainbows. AMAZING!!!!!
Wow, as an owner of several RX7s in my younger years, 79-82, first ones with dual points/condensers and a 4 barrel carb. what an awesome design with the intake in the shaft, this could be huge for the future designs. Drove my brother in laws RX8, unreal power
I was a lead Volvo dealer Service Advisor…. We called the “run it at high rpm’s until it stops smoking .. an “Italian Tune Up”! Worked great on over babied engines..especially the diesels….
I had a 1974 RX4 Coupe as my adrenalin toy for when I wasn't busy racing outboard hydroplanes in Canada. After having two apex seal failures, I retired the car (it had also started to rust away) in 1980 and gave the engine to a racing buddy and usher at my wedding who had specialists in Toronto rebuild it. We then put it in his RX7, a tight fit as it was 25% bigger than that car's original mill. It went very, very fast... until it also popped another seal. I gave up playing with rotaries but became briefly interested again when OMC developed its racing outboard rotary engines. Again, too short life span, so I returned to internal reciprocating engines. Am delighted to see true believers have kept the faith.
Is it ironic that I'm watching this when I should be studying for my engineering exams?
Just passed mine you should be ok lol
It seems like a common thing. Never do I watch as many legaleagle videos as the few days before the exam.... and no, they don't help me. I'm not even from the US xD
Imagine studying for your engineering exams and putting back the engine on your rx7 and seeing this
Trust me, you will learn more here
@@johannesmajamaki2626 finland?
Now this is not just educational but also extremely therapeutic and relaxing
A billion dollars tech. Many variations can be developed, from hybrid, otto conf., bigger setup, multiple combinations etc. Congrats. Very satisfying to see a compact stable rpm.
Back in the sixties, a friend of mine had a small Mazda with a rotary engine. He allowed me to drive it, and I was absolutely amazed with the power of that small engine. It would accelerate dangeously fast!
I love how the only thing I can imagine in my head is the power side of the piston being like " Fuck! Everywhere I go they're exploding in my face!"
this might actually be really bad, cause that face is going to heat up and expand more than the other if not properly cooled, and that can start a lot of problems. It's similar to what happens in rotary engines, were the chamber heats up too much and the engine doesn't run properly. It would be interesting how they manage to solve this problem with bigger engines (1 - 5 L, turbocharged hunderds of horsepower, etc)
@@xxoan.1613 I thought about that too, like, that face literally never gets a break and it appears to be made exactly the same as all the other faces. Which, like you said, could cause it to expand like crazy under high-stress conditions. Only thing that seems to be cooling it is the minor whiff of exhaust gasses.
@@man_on_wheelz
Makes me wonder if that whole rotor is made out of inconel.
But that area does have air flowing through it and you can see the cooling fin density is absurd on that part, so maybe steel is up to the job.
Edit: actually at 3:29 you can see there is a TON of clearance. That rotor could literally be glowing red hot and still not have any issues. They just let the reverse-apex seals handle it by giving them plenty of travel I guess.
@@xxoan.1613 you do know that normal engine pistons do also expand and they have to take that into account. that's why in high horsepower engine you will hear a bit of piston slap when there cold. its also why you always let an engine warm up there made to be under load when the pistons are warm and expanded to the right size. ask any one who has done a forged piston swap you have to take in to account expiation. also if you look on the power face of the piston it has cooling fins.
@@phalanx3803 u do realise that one half of the rotor is eating every explosion and the other side isnt
I love there's suddenly 3 rotary engine themed videos in like 1 week. I would not mind a few more as well.
Props on the credit. Engineers are usually only thrown under the bus, but serious props are often needed. Good job!
As a machinist it's because most of them just want to go straight into cad/design and have no experience, or business, near a machining center. I can't tell you how many times I've had to send the drawings back because of a dumb ass.
Really interesting. This type of rotary is SO modern, liquid piston, a real rotary rethink..
I'm impressed! 🌟👍
I rebuilt two Rotaries back in the Early 90's. The Front bearing of the eccentric shaft spun on me and shut the oil flow down to the shaft. Chewed it right up before I figured out what happened. I should have known when the Oil pressure shot thru the roof something was up. I'm glad to see that you guys didn't give up on this technology. I will however be interested in how you locate the spark plugs for easy access :)
Easy to access spark plugs. Simply remove the engine cowling, or include access plugs when building/modifying the aeroplane. You should see what is required to change the plugs in a v form transverse engine, with half the plugs facing the firewall. It requires a mechanic with special physical attributes, long skinny arms and small hands. Helps to be triple jointed.
Ayinu🤣
you can see the spark plugs in the video
You and Integza both released a rotary engine video on the same day. . . Who do we have to thank for these gifts?
My guess is the rotary club, aka the mazda mafia
The rotary engine is truly fascinating. They're actually quite reliable these days if built correctly as was proven already at Le Mans.
Looks like they were able to reduce the number of seals (and biggest failure points) to 5 or so. Progress.
I saw an ad for this the other day from the company promoting this as an investment opportunity. I was skeptical to say the least but this does show some promise. Definitely needs another rotor or two to balance out those vibrations though.
Stay skeptical, because it would be a terrible investment...
So a peanut inside a dorito is making more power than a dorito inside a peanut, excellent it's all coming together ❤
Very valid observation, it’s interesting how they inverted the engine in a way, it’ll be interesting to see if they can handle boost, if they’ll make multiple rotor engines, if they’ll actually make a production triple or quad rotor I mean who wouldn’t love 12 spark plugs lol, I’m hoping we see four digit power numbers in the near future. If guys in their garage can do it then this team of engineers should be able to do it with ease
@@taylorpratt6287 I've been watching this for a while. I don't think the combustion chamber's overall shape can be altered. To scale up, they either have to make the whole rotor assembly larger or stack them.
@@hollismccray3297 agreed, they should definitely make a larger model with 4 or six rotors, make it liquid cooled and turbo charged
@@hollismccray3297 What is wrong with the shape of the combustion chamber? It seems like the shape of the rotor is fixed but the housing has only three points of contact that are fixed. The rest seems to be flexible. From a purely combustion oriented perspective, the ideal combustion chamber is spherical, with the ignition source in the center. This achieves the shortest distance for flame travel in all directions. This combustion chamber seems to be like a quarter of a sphere. It seems like if they flipped another housing over and bolted them together they would have a hemisphere which would be the best you could do given the fixed shape of the rotor. I don't think they are giving up a lot as it is.
@@5000rgb It is a hemisphere. It's just hard to see because half of it is clear
As an engineer, really appreciate the shout out at the end. Good stuff all around!
Thanks! Hopefully you don't work for Tesla or space X because we all know that Elon does ALL the engineering in those companies...hahah
People who pronounce words wrong because they learned the foreign language by reading deserve an upvote
I love the fact that work is still being done to perfect the rotary. The concept is great and the new rotor shape looks like it possibly gives a better area for the expanding gases to push against than in the Mazda 3 sided rotor. I just wonder about the side seals - as they would seem to have the same job to do as before on the Mazda rotary and also, the apex seals. It looks as if the biggest change has simply been to move the apex seals from the rotor to the rotor housing. Does that really make a big difference or is there more to it? This setup also looks to be using multiple sparks on each plug. Does that limit rpm a lot? One final point, the combustion is always against the same part of the rotor with the other end always being away from the burn. How is the heat controlled? (I know in a piston engine the burn is always against the same face of the piston but (a) there is only one face, (b) they have oil sprayed at the underside of that face to keep cool and (c) they don't have three burns per rpm, only one every two RPM (or every rpm in a 2 stroke). I'm hoping there are good answers to all of this because I'd love to see smooth rotary engines in cars again. My son drives an RX8 as his daily (and only) drive. I was involved in that choice, so this is not me raising questions to be anti rotary, I just want to understand better.
The apex seals are getting forced outward because of the RPMs...so much centrifugal force on the seals. These seals just sit still.
Don't get me wrong, I am a huge rotary fan...I am just saying that there is a huge benefit to seals that are not being spun at 9k rpms.
@@Rozza43 I could be wrong but I'm fairly certain this is actually worse. For one if the outward force on the apex seals is so extreme there would be no need for springs? Two, this now has no way to clean carbon buildup from the housing, and instead cleans the rotor (arguably worse). And three you now need the rotor to fill the entire hole (as it always needs to touch the seal), thus introducing much more mass actually rotating. Hollowing the rotary is a neat idea here and would solve my last point however I'm entirely apprehensive how well this would work scaled up in terms of both heat and more rotors.
(
@@chronicnugget5595 Personally i think the apex seals need spring because it needs the seal all of the time
there are probably not enough centrifugal force on the seals when the engine is just started and running at 1000rpm or sth like that
Petrol-engine ignition systems, at least since Kettering (points, condenser & coil) have always produced multiple sparks.
Finally a rotary back on the scene
It's not really a rotary anymore :)
@@Stasiek_Zabojca its literally still a rotary engine. The shape of the rotor is just different.
@@Stasiek_Zabojca It's a rotary, just not a Wankel. The Wankel is really the only rotary design that has ever been mass produced, hence people assume all rotaries are Wankels, but there's other totally different rotary designs that have been less successful. This is sort of an inside-out Wankel.
Супер! Молодцы ребята. Без преувеличения скажу это новый прорыв в двигателестроении!
Конечно получится - там же все свои)))
Какой ещё прорыв? Мазда уже 50 лет с роторным двигателем катается, в ссср в 80х разрабатывался
Так это совсем другой по технологии ротор.
@@danunah7737 такое чувство, что вам как об стенку горох..... технология другая, ротор но "на изнанку"... Те прорывные роторы ходили 80 тысяч км.... этот обещает быть значительно долговечнее и плюс мульти топливо. Летом на дизеле гоняй, в центре города на водороде, зимой на бензине, в общем развлекайся как хочешь.
@@user-nh6ii3kh3q ага, размечтался, губу закати.
My Son is a mechanic and has always like the rotary engines. He feels that if the seals are fixed then it’s ready to rock !
I REALLY want these guys to succeed.
Credit to all those engineers... Thanks warped perception for the video... Inspirational
Fun fact: Everyone wanted mazda to improve rotary, not kill them.
Engines that consume oil as part of the combustion process are doomed from the get go. This engine is DOA.....
@@jfisk60903 Not necessarily, but they do have an uphill climb in this emissions-paranoid era. It is possible, with the right oil and a good catalyst, to meet the stringent (ridiculous) emissions requirements in place in many places today even with an oil-burning engine. It likely would be a somewhat expensive oil. However, in areas that test emissions, using the wrong oil will cost you big money as you'll ruin the catalyst and they'll make you replace it or stop driving the vehicle. All that translates into a vehicle which will be niche, but rotary engine vehicles have always been niche.
Rotary engines are just a poor engine design. Even in situations where reliability is not a factor traditional piston engines are superior. Look at drag cars. The engines in them are rebuilt after almost every run. They still choose to use traditional engines because they work better.
They're bringing them back as a range extender for the mx30 ev
@@jfisk60903 this engine does not consume oil as part of combustion. It is metered directly to the sealing surface from the engine block, whereas a Wankel has to inject it into the combustion chamber or pre-mix with the fuel. They have oil consumption down to 4-stroke piston levels.
WP you guys are awesome! Terrific work for this video. Thanks for all.
I am seriously amazed. Three locations for combustion!!! Three different locations for heat control, rather than only one location for the Doritos wankle. I still enjoy driving my slow Mazda RX8, but it’s reliable or has been reliable, since the day I bought it back in 2005, brand new, off the showroom floor. 70k miles so far. But this engine looks amazing for a small as it is. Can only imagine if it’s of relative size to a N/A 1.3 liter. Looking forward to to future tests and sizes and even force induced!! Keep up the awesome work!
They involuted the entire design! That's frickin genius!
You mean inverted it. Haha
@@ZeldaIsMyLove no, the shape is an involution of the curves used in the wankel engine. I used the correct word.
For example, a square will roll like a circle on a road made of matched involute curves.
I just wished a different company did it; or that they didn't patent the designs.
@@Unmannedair but that's literally what the original wenkel engine did too... this is an inversion of the wenkel.
google Cooley engine from 19th century
Shout out to those young engineers working there. When your co-founders have PhD's from MIT and UConn, you know you're doing it right!
Guarantee you they are underpaid every one of them. Just saying. I've been on THAT end of a company that's doing great work and all profits seem to be designated to "the greater good" of the company, which is usually the owner's million dollar home, cars and toys. Stay strong guys!
I literally just thought about the inversion of a 13b rotary design and wondered how efficient it might be in comparison. Then this video pops up. Thank you for already solving this problem before I waisted my time on another headache of design. I love smarter people. Lol
As a ME (retired - Aerospace, Aviation, Commercial Mfg., Medical Devices, and Auto Shop Owner) - I wish the readers and commentors would remember what Nikolay Shkolnik said upfront; it's a High Efficiency Hybrid Cycle engine - HEHC. It's not a Wankel. Even to call it "Son of Wankel", you'd have to concede that it's a Mutant - and a very advanced one, at that. I'm really looking forward to seeing where this one goes.
Oh heck, we're only a few hours apart! 👀
Y'all should seriously do a collab!! That would be SICK!!!!
Really where you at ?
@@WarpedPerception Ames Iowa
Wow to see two of my favorite channels do a collab will be awesome!! I'll be watching out lol
Oh yeah your close, Man I gotta think of something crazy !
Got me scratching my head on this one! Engineer here and I'm going to lose sleep tonight!
Maybe if a model could be designed to LIVE ON CO2 could it make any logic at all😂
Huge potential in portable or mobile power tools, generators, vehicles, EV range extenders, military drones, scooters, chain saw, motorcycle, lawn mower, weed whacker, blowers, snow blowers, paramotors, small aircraft, passenger drones, delivery drones, backup power, biofuel- compost gas- wood gas/ synfuel / cogen systems
Another idea. Use a 3 rotor design with each rotor having 2 spark plugs and one water injection instead of a spark plug at one of the apexes. This would use some of the surplus heat on the rotor to expand water to steam and do work. It helps control the internal temperature of the engine without necessarily needing traditional water cooling. 3 rotors so that the water cycle can be on a different lobe for each rotor. 120, 240 and 360 degrees to maintain symmetry and balance. You really only have one air cooled combustion surface on the rotor so this may help with heat control extending the durability of the engine. This inside out Wankel is brilliant. Don't stop!
Holy shit. This is genius. New cycle, new shape. On probably the most elegant form of IC Engine.
It's not a new cycle, just another rotary piston engine configurations. It does intake, compression, power, and exhaust just like every other four-stroke engine (including the Wankel/Mazda rotary).
Kudos for showing engineers in our natural habitat -- desperately trying to finish up. :-)
My oldest brother who was a mechanic back in the 80's, explained how a rotary engine worked when i was 15 yrs old, he also had a Mazda with a rotary engine in it
I like the fact that it has all the stages in each chamber. In this way, you can cool down that chamber after combustion, in the intake part. I seriously hope this proves to be a revolutionary technology so I can ride a motorcycle with this engine before gas reservoirs deplete.
These are made to run on hydrogen which burns clean ;)
I can't wait to play with these in applications where conventional combustion engines have been too heavy
yoooo weedtrimmers and edgers would be so much simpler and lighter
Please not a gas powered hot glue gun
@@calebs4887 "With the Friz? No way!"
"Aw"
Imagine this in something like an 1/8th or 1/6th R/C
@@samfrinzi6392 chainsaws too
Man this gives me goosebumps. It’s crazy to think that this will change so much. Already invested in this company. Should be a great run.
@Banned Again Optimists don't like it when realists deflate their hopes and dreams.
@@warpedweirdo "Realists" don't like people with vision. They are more interested in throwing rocks than solving hard problems.
@@mwong000 Not at all. Realists see problems that optimists overlook or minimize. A wise optimist will carefully consider the realist's points, weigh the risks, and take appropriate actions. A foolish optimist will minimize the advice of a realist by accuse him of throwing rocks and not doing enough to solve hard problems. Foolish optimists are easy prey for scams.
A fool and his money are soon parted.
@@warpedweirdo The world is full of losers who just say "This won't work!". I have met a lot of them in large corporations (GM, Ford, Sears, Kmart, Montgomery Ward etc) where the culture is stagnant, and people are rewarded more for the maintaining status quo than people who take risk and innovate. These people bore me to death because they never achieve anything.
I am far more energized in people who say "This is the vision. These are the problems. Now let's sit down and figure out how to solve them." Liquid Piston is one of those companies.
@warpedwierdo you can learn and grow or you can try to win this argument and continue being negative. If you choose the second, you will be no smarter 10 years from now than you are today. If you are wise, you will take a moment to think about this before trying to think of a clever retort.
@@mwong000 You judge the credibility of a sales pitch, or the viability of an idea, by how "energized" it makes you feel? ROTFLOL!
The feeling of excitement, agreement, should be a strong signal to stop, take a step back, and very carefully reconsider, because the point at which you're most excited is the point at which you are most vulnerable.
This seems good at least for hybrid cars, saving space in the engine bay. Of course there's more
This is a fascinating little engine, though I can see that it is expressly designed to be a single-rotor implementation, as expanding it to multi-rotor configurations would prove exceedingly complicated. Being air cooled is also a limitation to how it can be scaled, though that could be remedied with a cooling jacket. It's just not something that I think would be ideally suited to the automotive industry unless it provided enough torque to be used as an effective range extender, and I just don't see that happening with that particular design.
Yeah it would be great as a "range extender " or backpack paramotor powerplant
Or put several on the same shaft just like a cam...
If this is reliable, it could be revolutionary. Looks to me like heat dissipation, rotor durability, and crankshaft strength are the three biggest areas of potential failures.
Literally the same potential failures as a standard wankel. Mazda had issues with coolant and how to keep it out of the combustion areas and I don't see how this fixes that yet.
@@blakethornsbrough1528 With the rotor being hollow and constantly exchanging gases, this should pull some heat outta the rotor itself, the coolant would then only need to be run through the housing. In theory anyways. That's how it looks like it was designed to me.
@@CF_Sapper you a relative of the guy who designed the egr valve to be "cooled" by coolant? What happens in practice is you heat what you expect to cool. Especially in a 2 stroke style of engine like a rotary behaves.
@@blakethornsbrough1528 No I
Married into the family 😂 I get what you're saying though.
On a second watching they describe how they mix the exhaust with cooling air at a 10-1 cooling air to exhaust cooling the rotor from the inside.
@@CF_Sapper which is fine on a small scale. In application 2 rotor with forced induction there isn't enough airflow to maintain 10/1 at the rpm's a rotary runs especially during spirited driving. Is it potentially a better design than a wankel? Sure. It has a lot of questionable inner workings.
The problems of the Mazda engine, are the problems inherent in the design of the Wankel rotary-piston engine. From what I can see in this liquid piston version, these problems have not been resolved. a)The intake air still gets superheated on its way into the combustion chamber, in fact even more so since it now travels through the inside of the piston. b)The path of the intake air is still very convoluted. c)Sealing the sides of the piston is still going to be an issue. d)Internal lubrication still requires injecting engine oil into the incoming air. e)Some combustion pressure pushes against the piston's direction of travel. f) The apex seals aren't gone, in this version they're fixed and the rotating piston scrubs against them. g)Finally, they may even have created a new long-term issue: uneven temperature gradients in the rotating piston with the part that admits the incoming air being considerably cooler than the rest. Like a Wankel, this looks enticing on paper, but loses its charm once you analyze the details. Still, I'm assuming that the people who designed it are smart and will be able to produce working versions for some specialized real-life applications and it does make for some great videos.
Wow I was just thinking some of these issues then I saw your post, you've put more thought into it than I could. Good work!
Thank you. The moment I started thinking about it, it started falling apart and you put it quite succinctly.
Also, now you don’t scrape the whole chamber so carbon buildup on the combustion chamber will become a problem fairly fast
I agree this poses various engineering problems that will inhibit and cause it to be phased out the same way Mazda's wankels were as well.
@@crashTestGuru Very good point.
The main prob w Mazda were the Apex seals, when Suzuki gave up their Rotary venture, they sold their patent for their Apex seals, to Mazda, prob sovled.
wow, never really knew how a rotarty motor worked and the video was worth a million words of education, thanks
I remember back in the early 80s machining a glass cylinder head for a singly-cylinder piston engine so that we could fire a Laser Doppler Anemometer into the combustion chamber to 'measure' what was going on inside. This was before computer modelling etc. and it was the very early days of research into exactly what was happening inside a firing piston engine. We built a rig to traverse the 'laser measurement volume' in three dimensions across the combustion chamber to a few degrees before and after TDC. We fed the data into an ICL 2960 mainframe to process the data to give us a chance to 'visualise' the air-flows inside, before and after ignition of the fue;/air mixture.
This new rotary configuration is extremely interesting and I cannot wait for more advanced prototypes.
Amazing creativity! They reversed the piston and chamber of the Wankell engine. The chamber of the Wankell engine was shaped like a rotary piston.
Likewise, they developed the ring-shaped angular design of the rotary piston of the Wankell engine as the chamber of the new engine. This is amazing creativity.
Besides, opening the intake and exhaust port through the rotary piston is another genius idea.
It was a very successful work.
Congratulations.👍
First of all, I would like to see this engine on a motorcycle.
i didn't noticed that this video was uploaded a year ago and this is the first time I've seen that configuration of rotary engine. it looks more stable than the ordinary one's we have in RX-7s.
Rob Dahm is frantically making guesstimate dimension sketches and getting ready to make a full size 4 rotor version on his cnc machine!
Hahahaha, from pixel to pixel
Put 3 together make a 9 cylinder monster.
The intake is inside the crankshaft, less than ideal for multi-peanut engines
I've always wanted to see two twin rotors linked to a supercharger in the middle.
With this design I think it would work. 🤔
@@laurean5998 you can have up to two if you have one on each side.
Oh man... I've been waiting for this since you teased it in the community post! :-D
The second time I'm watching this but really appearing how genius it is to make the rotor do more work by its new role as an intake plenum and exhaust
I ran an NSU RO 80. In Germany in the 80s it was smooth fast and very thirsty.
My friend ran a Mazda in Germany in the mid 70s
No one had any mechanical problems
That was awesome. Now we need to see it with boost making 500hp or a 4 rotor.
in other words how to make a see threw design a even more see threw design
@Maximo Moline You could set 'em back to back I think, in banks of 2.
@Maximo Moline "impossible" is a strong word, but it would definitely be challenging
to make it more than two you would probably have to have it in pairs on either side of a gear driven shaft, i don't think more than 2 in a row would be possible without a ton of engineering.
@@thenerdycanadian7172 That's exactly what I mean!
I heard it described as and inside out wankle, now I can totally see why that's accurate
It's conceivable that you could fairly easily redesign this with an intake and exhaust port on either lobe utilising a electric lifter for each intake/exhaust valve. Allowing the replacement of air/exhaust gas through the centre of the rotor for oil. Personally if i were designing this, I wouldn't use radiator coolant at all. I would make this motor entirely oil cooled like a motorcycle engine. Advanced heatsink design and oil coolers would keep this a very cool engine.
A dual rotor setup, would require 6 camshafts of two lobes each. But the reality is, if it's got 3 power strokes per rotation the possible power output is quite significant. I would hypothesise that a NA 1litre dual rotor engine could make around 200hp fairly reliably.
electrical intake and exhaust values are an idea far more revolutionary than this engine. When they become feasible, sign me up, but I'll have them on a regular reciprocating engine instead, thanks.
Could you imagine going back in time and tapping Wankle on the shoulder and flipping his design inside out.
I've been waiting for liquid piston to finally get to market. I've been checking in on their site on and off for years now. The reduction in weight is incredible. 1hp per pound is pretty incredible for a four stroke.
Looks like the perfect Aviation engine.
A 65hp, 65 lb engine would be excellent for ultralights. They didn’t really measure aspiration,ignition, and exhaust ancillaries in their weight calculation though, so it’s difficult to compare it to anything.
Super cub bush plane for sure
Exactly what I was thinking
Duct the moving air, ram air, add some HP and TQ. Oui ou non???
@@tomcoryell With the weight being down so far you could probably get away with 45-50hp?
After watching a few videos on this engine, its one of those head scratches like seriously no-one thought of this but as they said they took the best parts so i am sure its one of those people improved parts but not as a whole...this engine will be cool to see as the power levels increase hopefully its affordable
Mazda rotary 255 hp from 1.3 liter very awesome engine... attach 2 together and push the envelope a little and you have 2.6 liter producing I think it was 800 horsepower if I remember the numbers correctly for the 1993 Mazda RX-7 the car I sold at the dealership was 255 hp perfect 50/50 weight distribution.... it was without a doubt the quickest fastest car made unless you went to a Lamborghini or some such crap....
Demo drives in that car were so freaking awesome.. better than a vette nothing compared to the quality..... not even the Toyota supra could compete.... smooth power with absolute precision.....I was the only one in the dealership that sold any
And I sold 3 times our allotment ..... the other salesmen drove the shit out of every one we got and I had to sell those miles put on the cars too.... people that spent that kind of money wanted virtually zero miles .... I should buy one now.... still my favorite car of all
Montego blue with the tan interior... by the way I love the rotary so much I bought a point.
.30 cubic inch OS glow fuel.. engine for radio control aircraft....
Someday when I build another Fokker Dr-1 it will be put on the front
If you look closely, you can see the seals on the walls of the engine moving up and down like they're on a spring. That's such a smart way to reduce the wear, and make room for tolerances from these "inverted apex seals." What a creative engine design all around. Mazda needs to send a rep down there and pay these fellas some money for their patent. I'd love to see this applied to a car some day!
It’s just as crap as a wankel.
Mazda's apex seals are on a spring as well, that's not the issue with the engine
@@mareksumguy1887 why so?
@@metaphorpritam look at the BSFC.
@@mareksumguy1887 Yeah, and? Looks comparable to diesel. The only problem is distribution of pressure on the rotor, which actually causes some loss if efficiency.
My late grandfather has 90+ patents on the Wankel motor, so i am really rooting for this take on it to be a success. Even though i am 100% for electric, there are still some great applications for this thing if they can pull it off... we need highly efficient ICEs if we're gonna keep using them.
electric polutes the most. All ICE can run clean with no bad byproduct.
how could you possibly be convinced of that being scientifically possible in any way? Combustion is the "C" in ICE... there are byproducts in any chemical combustion process. Electric motors use stored energy with little to no byproducts, and especially so if they are getting their charges from renewable energy sources. Gotta stop getting your "science" from fox news.
Hydrogen burns down to CO2 and H2O. Electric cars get charged from the grid…coal fired, gas fired, etc energy. Plus the grid can’t supply enough electricity for most people to drive electric cars. Lithium mining is highly destructive of good ole mother earth. Renewable energy sources are exceedingly expensive, unreliable, inefficient, and not ready for prime time. Internal combustion engines have a bright future ahead.
@@Cloydfunk and extracting oil from the ground and refining it while pumping pollutants and flames into the atmosphere 24/7 is not destructive? Come on, that is nonsense. The more we invest in renewables on a large scale, the less harm electricity will be doing. Combustion engines are a massive part of the reason we are in a climate crisis.
These batteries get the electricity from renewables only? No coal burning at all? Gotta stop watching msnbc and Bill Nye the “science” guy.
Brilliant! Thank you Warped Perception for sharing this video on Liquid Piston X Engine. Greetings from Madang, Papua New Guinea!
The Crichton CR700 is amazing too. This is brilliant the liquid piston engine
Just insane to see that RPM from it in action :D