5 Stage Axial-Flow Micro Turbine - The Worlds Most Advanced Micro Jet.
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- Опубликовано: 23 авг 2024
- Here it is, the world's most advanced micro jet. about 4.5" diameter and puts out roughly 100 lbs of static thrust. This is the 5 stage Bladon turbine. Can it fit in an rc jet? You bet it can. With twice the thrust. Can people afford it, well, pretty sure some can, but not many. All in all, this is an engineering marvel. The Bladon brothers took an axial-flow turbine and scale it down to rc jet standards. Simply Marvelous.
Currently, the turbine is only used by Jaguar automotive.
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Possibly the most expensive and insane method of charging a Jaguar battery, are they serious? Getting an Axial flow Turbine to run at this size?...a bloody miracle.
Wow! What an amazing piece of engineering marvel. A micro engine that can produce a very high flow rate of thrust. Actually while seeing this, it reminds me of the movie The Rocketeer (1991) where in people can go to places using their jet-pack backpack. Perhaps the idea will eventually be seen in the near future.
The RC world would Love to get there hands on those!
crazzylee yes quite and their hands are free because no wire coat hangers
Everyone here is missing the point. The unique feature of the Bladon gas turbine is that it has a multi-stage axial compressor instead of the centrifugal compressor common to all other miniature gas turbines so far.
Engineers have dismissed axial compressors in miniature turbines as impossible/too difficult/expensive. A multi-stage axial compressor gives better pressure ratio and thus more power, or lower fuel consumption for the same power.
The secret is in super-accurate machining.
Immaculate. Not an engineer, but wish I went to school for one... House bill, car bill, married, prob too late... Keep posting these things, this is a an amazing piece of machinery.
am impress with this micro engine. As a kid jet engines always fascinated me and now there one that i can play with and test all on my own.. NICE look forward owning one.
Jags are actually built very well these days. The days of British Leyland and "that'll do" mentality are over.
Interesting comment from the usa.
At 100 lbs thrust it's more powerful than any single RC jet engine. JetCat's P200 is rated at 50 lbs. I wonder what the weight of the engine is as well as exhaust temperature. Perhaps JetCat is working on a similar idea for JetMan. He currently uses 4 JetCat P200's.
Certainly a marvel of Engineering. My experience indicates that the most demanding is the diffuser and the final power turbine. The slowing of the air into the burner and the bypass air to cool everything down not to lose the metal structure.
With five axial compressors I would say that the compression ratio is 5:1, not high enough for an efficient engine, but the workmanship is brilliant.
Congratulations.
LMAO! Like Jaguar owners want to hear that thing charging their batteries? Now, for an RC Aircraft or boat, that thing is bad ass!
nicely built engine ,,amazing how things look when someone puts the effort into their products.. good job.
"YES, PURRS LIKE A KITTEN, RUNS QUIET DOESN'T SHE!"
"MY NAMES NOT BESS, PAUSE FOR A MITTEN?, SORRY I CAN'T HEAR YOU!"
Seems entirely practical :P
godd point. hehe but seriously. i have a diesel heater in my toyota yaris,, the fan dont run as fast as this jet, but is extreamly loud IF YOU REMOVE THE EXAUST HOSE and mufflers.
Excellent engineering AND manufacturing technology. Wish it would say more about the weight and thrust.
Turbines may "hog" the fuel, but you must admit they do have a much better power to weight ratio than diesels.
Example:
Wärtsilä-Sulzer RTA96-C, weight > 2300 tonnes, power circa 80Mw, SFC 171g / Kilowatt-hour (used on the Emma Maersk)
VS
3 LM2500 industrial gas turbines: weight 4.672 tonnes each (total 14.016 tonnes), power 25-35Mw each (total 75-105Mw depending on version), SFC (converted from english units) 226.9g / Kilowatt-hour (engine is a derivative of the CF6 as used on the Boeing 747)
Imagine sitting at the stop light and the Jaguar next to you fires up its turbine to charge the batteries.
Sounds like a miniature J-79 turbojet. Good show mate
As a way to recharge your batteries to get you home I love it. It runs on anything, and will stop people from being scared to own an electric vehicle. Best of all, if you wanted to, you could recharge your batteries and just roll from the thrust alone, to conserve even more power. Who hasn't wanted a car that can sound like the Bat Mobile at some point, LOL. Seriously though, if you know how far your electric goes on a charge you may never need this, but it's always good to have a backup.
No hearing protection, no fire-bottle and someone loitering directly in the plane of rotation.
Turbines are actually very fuel efficient, its just that the usable energy is not easily harnessed by any application where start and stop motion is desired. Turbines don't idle up and down quickly, and use roughly 2/3 the fuel at idle as it does at full throttle. However, as far as efficiency, jet turbines can be up to 80% or higher vs. their piston styled counterparts that can acheve 40% efficiency at the high end. When used to generate electricity, a jet turbine can be way more efficient.
Well I guess it also solves the problem of finding a sound for electric motors so people can hear them coming.
cnsidering you only need to run it to charge a battery ... and that would be done in 30 minutes .... not really ... and if you put it in a muffler it could be quieter than anything on the street BUT an electric ONLY car ... all for the a basic jerry can of fuel instead of a large tank hold 50 gallons .
Hearing protection is for whimps!
I had a similar thought in the past few years: Electric drive, ideally hub motors, with a microturbine generator, and ultracapacitor bank to provide on-demand power. No expensive batteries (just expensive everything else :P)
Well, you certainly have far more expertise than I do, so I'll take your word for it. I wish someone could come up with something more efficient than the piston engine though.
This is incredible but I'm still holding out for the day someone TRULY goes all out and builds a miniature twin-spool turbofan, say 10 stage axial compressor and 2 stage axial turbine with the option for an afterburner. This is a huge step in the right direction. Heck I'd be impressed with any twin-spool micro jet really...
Two of these would lift me straight up.
one of the most impressing items I have ever seen on here or anywhere!
In principle because the laws of thermodynamics do not act similarly when the size (diameter) is reduced down this much... In other words, it is very hard to get the compression rates to the point where the engine would produce reasonable thrust... most of the minijets today use a radial compressor rather than axial... this jet is axial, and that is the novelty here.
Honeyell makes apu's that utilaze the blisk technology but they are not that small. I was production engineer for the axialflow line. This technology works wellwhen applied in the correct application. It looks like you are on the right track dont give up.
One of the best designs for jet engine
A million quids worth of gear tested on a Black & Decker workmate ......... sooooo British. All of the skill & none of the style, the Italian approach is almost the exact inverse, but they do have some very good engineers, but well pressed shirts.
Lovely work, can you put it on a bike & get that Isle of Man brand of missile running. Run a geni on the end of it and get Volvo or Michelin to come up with some motor wheels ..... it is so beautiful.
I asked a few questions sometime last year about the Bladon turbines, and the companies response was pretty much that due to the use of the air bearings, they haven't intended nor tested these engines for RC aircraft use. their main purpose is to use them for static, automobile or house energy production. it would truly be a shame if they did not enter the RC market though, these Axial flow engines are way more efficient and powerful than the alternatives currently.
Кто-нибудь, передайте Игорю Негоде идею многоступенчатого двигателя)
A lot of dumb comments from non engineers about this engine. If they really understood what they were looking at, they would not make such stupid comments. Its an Axial flow micro turbine, a miracle it runs at all at this size due to its compressor stage inefficiency. Please stop making stupid, lame comments about things you dont even begin to understand, instead, go read up on it. Come back in a weeks time (thats how long it will take to do your research), and even then, you wont be qualified to make comments about this remarkable feat of engineering excellence, ok?
Do you secretly hate your life?
hdmccart Nope, only stupid bas#$ rds...:)
Whats inefficient about it?
***** The compressor stages are innefficient due to reynold numbers. The compressor stages are like full size engines, ie Axial. Whilst it works well on a full size engine, it does not scale down with the same degree of efficiency on a tiny model engine like this one...Not that this is a badly designed or made engine...just the basic laws of physics..Told you it was a complex subject didnt I?
EnglishTurbines interesting. How did you know it didn't scale? Do you do work on turbines?
Just let me borrow it Jaguar, gosh I'm not gonna break it!! ;oP
sputtering performance means rotating stall problem which can lead to surge then flame-out. no wonder jaguar backed out.
Bloody outstanding Blitish invention 👍🏻
Wow. A great new way to roast hot dogs and marshmallows~! ;-)
Maybe you too should have a listen to what was said. He did not say he was going to be selling it for 1M pounds, that was the development costs to "get to this stage". Not the same thing.
Well start it up i have seen this post for 2-3 years now show us how smart you are !
Turn on the closed captioning for some chuckles (English).
that thing is sick! and he said they can make them even smaller! wow
the best motor pound by pound about ratio power-consumption-weight
Bet these will be a hot salvage item,down the road.
The concept of using a turbine engine to charge the batteries might be workable, however, Detroit Diesel had a turbine engine that used diesel fuel that was going to be used in trucks and stationary engines. The major problem they ran into was keeping dirt out of the turbine, something an Abrams tank solved with a very expensive and high maintenance filtering system. The heat/noise generated are yet to be solved for automotive use, that is, once the cost per kilowatt hour can competitive.
Problem is transmission of power ie. gearbox. You could couple this to a conventional turbo shaft "transmission" with some engineering and a 5-axis CNC machine. The problem with very small turbines is their lack of torque range meaning you have to run it at 100% rpm to get any useful power out of it. This turbine was meant to drive a generator that would power electric motors and store the surplus electricity in batteries making it real efficient.
The testbed is adorable.
Hey there. Some how I disbelieve their hundred pound thrust calculation. If any of you are interested I am making the world's smallest jet engine. 1.5 pounds of thrust at close to 300 000 rpm. This engine is 31 millimeters in diameter. Good day!
Perfect for cars....thats not noisy at all.
8 of these micro jet engines on an Octocopter and you have quite a fine aircraft. That's why you don't see them.
awesome design, when is it likely to be a productive item and truly a viable option for small vehicles.
Turbines used in vehicles do not get above about 30-40% efficiency. No single-cycle gas turbine is 80% efficient, and it's almost impossible since that is nearing the maximum possible efficiency of any heat engine. The best piston engines in vehicles get almost 50%. Engines used for power generation get higher, but they have multiple cycles.
I would like to see the U.S Gov. take two of these engines, make a 1/2 scale F-22 Raptor, and use those in the middle east instead of actual pilots. A page out of the drone's book but a more forward role in the war.
A few questions. What is its rated thrust? What is its weight? What is its fuel consumption per hour? Can it run off of hydrogen?
thats amazing!! sure this jet took so much calculations!
IT'S WHISPER QUIET!
+Jesse Stebbins YEAH IT'S SO QUIET I CAN'T BELIEVE IT!! OH MY GOD HOW DID THEY MAKE IT SO QUIET!!
+Alex stevensen WHAT !?
+Jesse Stebbins, nobody can tell by listening to the recorded sound. It will be ear-splitting.
That's right Troy.
Quite inspiring
And down in the workshop I go.....
That size it's not bird strikes but insect strikes you have to worry about, just joking!!
Funny. I guess one would have to worry about either flying or driving into a bug swarm? :)
RC types are gonna go bonkers. 😆
holy shit man i would buy one of these and mount it on so many things !
Thank you for this piece of engineering. I would like to buy one of this engines, where should I?
I want to see one on a pram
A five stage axial compressor in this size is an amazing achievement. With that in mind, 100 lbs of thrust was no less astonishing.
I'm still puzzled, though, despite reading all of the comments and replies. Two preliminary questions, with points I'd like to raise, please:
(1) - How will thrust be converted into shaft horsepower, in order to drive a rotating generator or alternator for battery charging in (to use the example in the video) an electric car? What is shown here is an engine producing thrust, which is of no direct use in such a role. It needs an additional shaft and gearbox and perhaps further turbine stage(s).
(2) - Would a centrifugal compressor section consisting of one or more stages not result in a far more fuel efficient, robust and cheaper engine, with perhaps an easier and more compact power take-off arrangement? The engine diameter would doubtless increase, but length should decrease, all of the previously mentioned influences considered.
BTW, I'd have been more comfortable watching the video if the chap in blue hadn't been standing directly in the firing line if any rotating parts had decided to fail structurally. Have casing containment tests been conducted?
I cringed even more when they started looking into the jet pipe from behind.
one of these powering that new passenger drone would be the way to go
Thing is, It doesen't actually run.
Anybody who /really/ knows their stuff with gas turbines will know that, judging from all the flames, all that footage was of startup attempts. The engine was never running, just being spooled by a big brushless motor, attempting to get it going.
The brits ain't joking
How much will one of these cost you? I can see using this for almost everything! A generator, for travel and so on. If there is a modular system of devices from a car, bike, generator and whatever else this can be used for. You can just take it out of one device and drop it into another device. Being so small compact and light. it's the perfect device in a survival situation. But you have to have all those things built already. When you need to use a device you just drop the jet into a already build modular system. It would be awesome to see something like that. I am sure as time goes on this tech will become cheaper and more efficient to do it.
i was thinking more in terms of just using it as the powerplant for the car entirely, but yeah i agree that should be more than enough as far as battery powered cars go.
100 pounds of thrust eh?
Wait till some madman puts four of them on a surf board and has a real life hoverboard.
Yves Rossy : i want that for X'MAS
As horizontal propulsion yes (pushing yourself forward) it doesnt have nearly enough trust to replace the turboshaft though.
great to use for heat /generation as well and combining it with compact 100 kw gen./motors not only for automotive but for home energy supply with locally produced fuels.CIAO GIO .
I suspect the Jaguar owners will intentionally NOT charge their batteries because running the turbine and using it to power the car would be a much more awesome experience.
เทคโนโลยี่ทันสมัย..ไม่เหมือนของเล่นสมัยที่ผมเป็นเด็กๆ...สุดยอดมาก
Damn, I missed a presentation by jaguar landrover at portsmouth university, found out on the day you had to register :(
The one reason why it's not more popular: noise.
grab two of these and put them on single wing like a zaggy, but like 6 feet in length so you can strap it on your back... then you could just step outside and fly away!
people hate everything that is cool, its called envy. you just proved to the world that you could make a mini axial micro turbine.
Brilliant piece of engineering, the best thing ive seen on RUclips in a long while. Id be interested in its lubrication system, i dont see any oil lines or oil tank/pump anywhere
They add turbine oil to the fuel at around a 1 to 20 ratio
Oh, but one more thing. Radial flow turbines are more efficient until you get up to big power units. They are also simpler in construction so why use an axial flow turbine this small. There are plenty of RC radial flow turbines out there.
Have you ever really studied jet engines, radial flow engines were only used in the early years of development , all others subsequent to that period were mostly multistage axial flow engines.
*****
Sure if you're talking about jet engines real aircraft. Not necessary for RC use. Too complicated.
Beautiful piece of engineering. I thought the Reynolds numbers were the reason why miniature axial flow compressors wouldn't work, now I know better. Considering the added complexity and expenditure, is this axial flow jet engine that much more efficient than a centrifugal flow jet engine? Also, in respect to using this as a battery charging power unit, wouldn't a miniature turbo charged diesel engine be much more efficient?
Wow, perfectly done.......
looks like the combustion was a bit touchy at high load levels seemed to out of same part of the can in both tests.probably cured by now somehow..anyway im impressed but scale effect is obviously the insurmountable obstacle at this level and it always will be.the air just doest act the same as it does in the full size version
@LTF85199
There is a vid on RUclips of a Cri-cri with 2 micro jet turbines. It's not full scale, but pretty close.
I wonder if somebody could make a Micro Jet Plane with a couple of those..with 100 hp of power each and the low weight would be just perfect...what do you think..
Maybe I'm just stupid, but I figured they were wearing earplugs. It's a bit difficult to tell with fuzzy video.
Got 6 of them. I got the from my uncle who lives in USA. And his friend is the vice president out there so I told him to get 6 for me and I just received them about a month ago. I'll use them to make a RC antonov 225 with them I upload a video of it as soon as it's complete
And? Show the 225!
Sure, pal....
Yeah... about that video...
brilliant intellect : at 3:20-50 it's blowing half to one foot flames;at 3:59 they sticking their finger and head into the exhaust
For what they are intending this engine to do, there should be no need for afterburner. It sounds like its going to be a turbo shaft driving a generator. But, the kids in my town get in trouble for very loud stereo's. This will never be in any US vehicles.
Innovative anything is time and cost consuming .
It would make an awesome RC engine for sure.
Here's an interesting point about it be used to charge car batteries while driving.....the car is actually now running on liqud fuel.
Basically a similar power system to the deseil locomotve making power to drive electric motors at the wheels
I need a Set of two of dos about how mich money i Need two of Dose Jets.
it looks like a massive 9mm round with a stainless case and hollow point bullet
I'm thinking turbo driven generator for an all electric aircraft. A small battery with direct feed to the motor while in flight.
Damn right, just what I was going to ask. I am sure it has a phenomenal power - weight ratio. But turbines less than 1MW are less efficient than piston engines of the same size.
I think this a very lovely bit. Of engineering and although it was. Made with other things in mind wonder if it can be used in model aircraft??
WOW and double WOW!
Can I have one for review? It would be amazing to do a few seriously awesome projects for social media and RUclips!!
How get the plan?
What did you use to take the footage of that thing? A potato?
2011..? Yeah, probably. An expensive one.
Camera tech has come a looong way in a very short time.
CyberiusT I'm thinking Russet. Yeah, definitely a Russet potato.
RDELAPLAZA Hahahahahaha funniest thing ive heard in a long time hahahaha
Congratulations. It is your potato joke, among tens of others, triggered my realization potatoes have eyes. I'm certain it was your flawless delivery.
LOL
For those of you that ask to buy one.
Here is the site of the compagnie that make this turbine. Since youtube comment doesn't allow me to post the direct link just exactly write : " 5 Stage Axial-Flow Micro Turbine" on google search. The first wsite is the good one.
Looks like it has surge issues.. I suspect more work on the pressure bypass values and FCU are needed.