Do-It-Yourself Turbocharger Turbojet
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- Опубликовано: 9 ноя 2007
- This is a run-up of my home built turbocharger turbojet engine. Long, but maybe of some interest to other engine builders. It is quite old now and dated somewhat and I now know far more about jet engines than I did then. Please go easy on me guys... It is my first video!
I would like to issue a challenge to all fellow Do it Yourself Turbojet engine builders and brushless electric R/C park flyer hobbiests/manufacturers out there.
Please comment and discuss the feasibility of mounting a small "outrunner" style permanent magnet brushless electric motor to the compressor side of this and similar engines. I realize that shaft harmonics and bearing limitations will play a very significant role in whether or not such a motor/generator combination would hang together at 140000 RPM or more. Of course, associated power electronics with the ability to switch from starter motor to DC generator would need to be designed as well to efficiently (relatively speaking) produce electricity at these ultra high speeds.
Such a device would mimic some of the hybrid turbocharger or "electrically assisted turbochargers" that have been developed by Garrett and others in recent years. These have been designed, developed and built to reduce "turbo lag" and recover wasted energy in the form of electricity with the intention of supplementing the charging system in vehicles. They have not quite made it to market yet in any production vehicles that I know of. I am crossing my fingers!
A hybrid turbocharger in my opinion is the Holy Grail for DIY Turbojet enthusiasts.
Once this exists as an off the shelf device, a whole world of potential uses opens up!
An inexpensive, simple, robust turbojet engine! Heat and electricity with only one moving part!
Imagine a tiny turbocharger based boiler in your basement that would heat your home, heat your domestic water AND charge your batteries in an off-grid or grid tied electrical system.
It would easily burn almost any conventional fuel including natural gas, propane, diesel, kerosene, waste oil, waste vegetable oil, bio-diesel, pellets, garbage and even wood logs as has been proven with the proof of concept device built by myself and Mark Nye at Nye Manufacturing and featured on The Discovery Channel's Daily Planet.
Your comments and discussions about how a PM motor generator could be adapted to this task are anticipated.
As promised, I am currently (slowly) working on a large afterburning VT-50 based engine (actually three of them) that will hopefully produce a combined two or three hundred pounds of thrust and be featured on RUclips soon.
I would like to run all three together in a stretched Quad ATV or mini dragster to take around to the car shows and make some noise. My concept for this engine will to both fuel and lubricate it with waste motor oil. Hopefully I will be able to offer construction plans and combustion chamber kits if it is successful and interest warrants it.
Thanks for looking! Good luck with your projects!
Overkill396 
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Of all the kids making these engines, this has to be the most informative of all the videos I've watched. I'm going to build on of these, and I keep looking for information for how to do this. Nobody talks. They just show off their crap, and expect Cleetus to try it without killing himself. Very educational, and thank you!
I smiled from ear to ear when that thing started up, what a sound !
Now THAT is validation of You Tube! Good luck in your career, and thanks overkill396.
Anyone can post a video on youtube and boast about it,but its not everyday that i feel i've learned something by watching one.SIr,i salute you
its great that turbo chargers are built out there for cars because it makes hobbyist turbine engine building so much more doable than it used to be
Man you're crafty. I showed this video to my car club friends to explain how turbochargers work. Nice work bud!
Great backyard jet video, I loved the way your plumbing is set out.
This is just excellent and very well put together. It's answered so many of my questions.
still one of the best tutorial vids on turbo jet home made engines ,,,thanks so much
Fantastic video! Really helped me! You gave a really nice run through of it all, and it would have to be one of the neatest, and simplest setups I have seen. Thanks again!
Great job- excellent explanation/description!!! Thanks.
out of all the turbo jet engine videos... You explained it the best ! IMO
Great Video, shows the layout and setup as well as a full demonstation!
One of the best videos for turbocharger based DIY gas turbines. The radial flow turbine and centrifugal compressor however make it quite ineffective (and heavy) fr thrust production.
One of the coolest things I've ever seen!
boy do i love the sound of a turbo spooling up
i can't believe what i'm seein' there... what kind of ideas one can get... BRILLIANT... my next projekt will be... youre great guyes!
extra cool, nicwly done, and sounds much more like a real turbine than the others vids I have seen
I really liked the video! It looks a very neat and hard work, congratulations!! Greetings from Argentina
Very nice set up and narration there
Its on fire!!!
LOVE the smoke...amazing how much smoke came out from that thing :D
good introduction vid , great if i want to show this to some one new to subject
i'm looking to build one of these. this video helped alot. thanks
Sweet build!
Wow that is great, thanks for posting that, maybe I will try that someday.
well done. hope to do this myself when i get time..
Good job and thanks for the video...
Best info about these engines on this video. I f I were there I would give you a high five. Keep up the good work and keep making new vids if you can. This vid is great help to me and my friend who are trying to make one of these
thats so cool when i get all the parts together im going to build one.
u made a military grade smoke generator :P, nice job with the jet, love the simple construction
Very thorough... Learned Much... Thanks.
You keep saying the word simple in your video and yet it looks fairly elaborate. I posted this on December 18/2009. I`m really curious as to what applications you specifically have applied this to since then.
Real nice job!
It's not what I thought it was going to be, I saw "Turbo-Jet" and the name "overkill 396" all I could think over is Chevelle. Cool vid!
Based on what I hear and see, this thing has blasting efficiency! Congratulations! If you wish to use it to generate electricity, I have some idea for you - try to get the torgue from a secondary multi-staged turbine instead of turbocharger's shaft. It could recover more energy from a jet stream and provide you with lower RPM on a shaft. There is only 1 company I know (Barber Nichols), who build high-rpm alternators, and they are really expensive.
Very cool man!
I'd love to see your application of this or related engines. Thanks for taking the time, it was a gas!
GOOD JOB MAN!
Nice, good job.
Nice vid, I hope we can get our twin Turbo unit to work this well!
great video m8
Fuel to noise machine...LOL
Thanks for the description and closeups and decent camerawork. Everybody shows em running but not much tech details.
that was a realy cool project. now I kinda want to see an afterburner on it. lol
thx for the clearly explanation
Nice video, tanks!
good vid, good explanation
Lovely! Well build and nice clear explanation. Any idea of RPM and or thrust/fuel consumption ratios?
Application; Gyro copter booster for inflight speed, with electronic control module to control fuel air mixture constantly. U need application to make sense and money too. Good video
amazing....hope i can built one...
Nice work
very nice informative video, thnx alot!
Nice job Great video
that is just awsome seeing the turbine glowing beceause of the heat
Awesome!!!!
great vid very informative. few questions..what do you do for oil cooling? didnt see any oil coolers or anything and also on that hot start up when the turbine blade went red was that just cause of lack of oil flow and then it went cooler once again when you upped the oil flow and was the blown oil seal due to temps being too high? also is there no danger of fuel burning back to the propane tanks?
beautiful! :)
Amazing!
absolutely great
very tidy build. Nice and simple and looks professional. Well done.
Would love to see it with a jet nozzle on the exhaust end of the turbo...at night.
the oil is used to lubricate it as the turbo spindle floats on a film of oil, so when it says blown oil seal it is this film that is leaking and then the oil seaps through and got burnt which is why there is lots of smoke. nah its only sucking air into the combustion chamber it doesnt really matter if small things get sucked in
Real nice
thanks
So cool.
very very nice. You have any idea what kind of thrust and RPMs your getting out of that thing?
cool stuff. . . did you use any sort of flame holder in the combustion chamber?
Thats pretty frieken cool!!!
Thanks! helped me alot.
I didnt seen a video on youtube containing any type of information on how the turbine works (when it comes to jet engines) i wanna marry you :D
Thank you verry much!
"CoWolArc" They make something known as a blow-thru carb for such applications. This allows you to mount the carb after the turbo, rather than before it. From what I hear they work pretty well, even on high horse applications.
blown oil seal , is the seal that stops the oil getting into the turbine wheel housing, when it breaks oil burns in the exhaust and causes all that smoke, also stop lubricating the bearings properly
Love the sound on 8:40
Nice job,Just a suggestion,if you want to make your oil seals last just add an oil cooler set up like they use on automatic transmissions.It's an old technology that EMD uses to this day.they call it a soak back system.when you shut off the turbo,leave the pump and cooler on to get the heat away from the center section.then too remember,your running at a very high level.blowing air in like you do before complete shutdown helps a lot,but the "soak back system" will cure your seal problem.
great video. what's next? keep us posted.
I also would like to know if you have a flame tube in the combuster also what kind of nozzle are you using to inject the propane into the combuster? Your reply would be welcome. I am starting my own build and am working on some combustion chamber designs. EXCELLANT JOB!
Your Crazy... But Thats frickin awsome!
Hi, Ive been thinking of making one of these. Is there no inner perforated flame tube inside the chamber? most other ones seem to have this. Great engineering.
awesome :D
Very nice little engine you have over there.
Any idea of how much thrust it could produce, and how much propane it eats?
Also - you dont have a alternator there to recharge the battery, is that right?
Amazing! Very impressive, and quite interesting really. I just purchased three junkyard turbos, all in great shape; I plan to turbo my car, my friends car, and the other one will be for fluid dynamics research. I was just wondering, why exactly did it smoke at the end of the video? Was that due to the oil? Because I have seen quite a few turbojet engines smoke when they power down...
Good work! Would it be possible to use a diesel glow plug or even a model engine glow plug instead of the spark plug?
thank,utk informasi yang sangat berguna utk saya .
in your 3" combustion chamber do you have a flame tube in it with the primary, secondary, etc holes in it or is it solely an empty 3" pipe? im just wondering cause your spark plug is mounted on the side
finally some one actuly explanes how it works propperly coool
@TheRsemil oh wow, thats crazy numbers, thanks, i had no idea they went that fast!
very well explained, most other turbo jet engine videos are one pixel one fps video's that just start and run, with some drunk people behind the camera.
now i understand how it works, interesting to build one somewhere in the future.
but i'm wondering if the angle of the turbine blades are at a correct degree? i think there's a difference between 'it works' and 'can propel a aircraft'. maybe if you put a nozzle on the outlet that it fails already because of lack of power.. ?
very interesting
Thank you for the video it was very informative. I'm going to watch it again until I get every aspect of what you said. If you know of any turbo learning material resources about turbos and are willing to share them it would be most appreciated. I'm Looking forward to more videos good luck.
Wicked!
Awesome video, but I would invest in some safety equipment like some safety glass just in case the turbo malfunctions.
Friction from the bearings and lubricant used is fighting against the spin of the turbine wheel, so nope, not so much. Also keep in mind that it's compressing the air along the inlet path, which causes resistance as well.
too cool!
hi, what sort of thrust you might get out of this? does the parts start melting if left on for too long? Thanks for your video.
nice turbo system
Hey a Great video ! You got a sweet "toy" ! After a turbojet what do you do next ?
well its been four years..But if you still answer questions, i wondered it the combustion chamber fittings were welded...I didnt see but, Id like to have seen just how much pressure was built inside the chamber...and along with other comments,really good explination on setup and function..
explination muy bien en la configuración y función.
I t was awesome mate. Can you describe the internal design of the combustion chamber. Just wanna know how you managed to eliminate the back pressure of the burning mixture. Thank you.
Can you please post a few details about the combustion chamber design you came up with? The vidoe mentioned just the 3" pipe, nothing about an internal flame tube, etc. Its possible to see how you fed the chamber with airflow and fuel flow, but I'd love some tips on the inner design, as well.
Thanks for advice. Do you know what oil I should be using, I think its the viscosity of the engine oil Im using that is limiting the spool up speed, Maybe I should preheat the oil to thin it ?
Amazing... Thanks for show this example with spark plug and combustion chamber.. Could you inform how much trust this can produce?.. TKS again..
its pretty cool... but what would you use it for???
also the turbo ratio runs 1 to 1 on intake vs exhaust side turbines... so its basically the same as a jet engine sucking in from the front and blowing out the back..... still interesting though..
I love the idea of building one of these, but I need to know more about it.
First, what kind of metal is best for combustion chamber (and is fairly priced too)?
I'm assuming once the engine is started, you don't need the spark plug to keep sparking right?
What's the best fuel/air mixture?
How dangerous is this?
Very nice xD
hi nice engin, i am building a vtol but I need an engine and it is now the choice that is hard, what do you recommend as a good cheap efficeint engine? jets are hard to maintaine