Biopowered - vegetable oil and biodiesel forum
General => Chatter => Topic started by: kamaangir on March 25, 2014, 12:45:57 AM
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As per the BBB thread I would like to build a jet type engine using a turbo. There are lots of videos on the tube and there is a guy called colin furze (or something similar) who makes the most entertaining ones:
https://www.youtube.com/watch?v=Gh34A0b8MrE
I want a big turbo not a puny one, something off a lorry or a bus. Any one know what engines have big turbo's? I tried looking on ebay but did not find anything. There are some big ones for petrol engines but they are mega expensive. This is just for fun and demo at the BBB so don't want to spend hundreds of pounds on the turbo.
Also will need help with welding, though I may just buy a tig welder and break the world record for the worlds biggest pigeon turd laid on steel! hahaha ;D ;D
Any way if you have one laying about and don't have a use for it or can suggest where I can get one from I would be delighted.
Cheers
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Great idea! Me and friend from uni (Pete) made one a couple of years back, we used a lorry turbo of some sort from the scrap yard. We used a saab PAS pump for the oil supply and a wiper motor to drive it slowly enough not to over-pressurise the turbo. A spark plug and a relay wired in to itself to generate a constant on-off-on-off for a coil and spark (just to start the engine) (the relay didn't last long doing that :) ) We drilled out a regulator and ran the engine from a patio gas bottle and an electric leaf blower to start the engine up. The whole lot cost about £40 all from the scrappo :) It can certainly be done cheap.
We had a proper Whittle moment and it was perched on a chair in the garden while my friend kept turning up the gas regulator and nothing happened, then it exploded into life and started accelerating (with the regulator fully open). We panicked and ran away as it accelerated like mad, then my friend grew a pair and ran back to pull the gas regulator off the bottle. It was so much fun!
This was before Furze had done any jet engine stuff. Colin Furze is a friend of my friend Pete. We did the engine in a weekend the other side of the country in Stamford, I went home and Pete showed Colin some time later, then Colin put the engine in a BBQ frame and made the worlds first Jet BBQ, it was pretty funny. We put a sausage in the exhaust heat and it got fired across the garden. I think one of the sky channels did a piece on the Jet BBQ. Colin is a very talented fabricator, and Pete is a very talented engineering, between them they've done some other jet powered things, The pulse jet bike being a good un. Colin has made a Jettle (that's right a jet powered Kettle), and Pete is currently working on a valve type pulse jet powered lawn mower. This is truely insane with 80% the power of the buzzing bomb!!
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(http://i97.photobucket.com/albums/l217/lozzzzzzz_2006/IMG00112-20110731-2115.jpg)
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Correction..
We ran the pump from a drill, it was Colin that put the wiper motor on when he did the BBQ conversion.
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This big enough? :o
(http://i121.photobucket.com/albums/o231/jamesmorfee/IMG_20140325_093122.jpg) (http://s121.photobucket.com/user/jamesmorfee/media/IMG_20140325_093122.jpg.html)
Seriously though, we do have a spare turbo from a 350kW CAT genset. It's about 250mm diameter. It can't be returned and it's just sat gathering dust. If you're interested I can see if I can convince the powers that be to part with it.
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Do it, do it, do it, do it! :)
You'll get some proper propulsion with that!
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Also will need help with welding, though I may just buy a tig welder and break the world record for the worlds biggest pigeon turd laid on steel! hahaha ;D ;D
This kind of welding you want MIG. Or arc.
Not saying you can't do it with TIG, but it'll take you hours and consume large quantities of gas. MIG and arc are much better for welding big thick lumps of steel, unless it needs to be perfect for some reason.
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This big enough? :o
Hi James,
Yes that is lovely! I would love to have that!!!!!! I don't really know much about welding but I wanted to learn TIG, I have had a go at ARC, I say had a go.... there was 3 or 4 pages of abuse at my attempt hahaha
I will look around on ebay for a decent 2nd hand one and avoid the Chinese ones.
Loz, Yeah Colin seems like a good bloke and is quite funny. I have seen most of his videos on youtube.
Now this being a bio/veg forum effort I would like to run it off bio or veg. How would that happen? Can I start it on propane and switch over when its hot enough?
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This big enough? :o
Hi James,
Yes that is lovely! I would love to have that!!!!!! I don't really know much about welding but I wanted to learn TIG, I have had a go at ARC, I say had a go.... there was 3 or 4 pages of abuse at my attempt hahaha
I will look around on ebay for a decent 2nd hand one and avoid the Chinese ones.
Loz, Yeah Colin seems like a good bloke and is quite funny. I have seen most of his videos on youtube.
Now this being a bio/veg forum effort I would like to run it off bio or veg. How would that happen? Can I start it on propane and switch over when its hot enough?
Don't know the technicalities, but didn't Virgin experimentally run ½ the engines of a transatlantic flight on bio a while back?
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Didn't Virgin Atlantic fly one of its planes with one engine running on bio?
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Didn't Virgin Atlantic fly one of its planes with one engine running on bio?
I think it's your age ... (lol)
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Didn't Virgin Atlantic fly one of its planes with one engine running on bio?
I think it's your age ... (lol)
No it's you butting in whilst I was preparing me veg for dinner.
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To run it off bio or veg I think the fuel needs to be pressurised and atomised, otherwise it probably won't burn properly. It would mean adding some sort of compressed air into the fuel system and some sort of injector.
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Didn't Virgin Atlantic fly one of its planes with one engine running on bio?
I think it's your age ... (lol)
This one is for you Julian:
https://www.youtube.com/watch?v=6rX4xv5-NvE
hahaha
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I'll knock one of those up before tea.
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I will look around on ebay for a decent 2nd hand one and avoid the Chinese ones.
Have a look at these guys: www.r-techwelding.co.uk (http://www.r-techwelding.co.uk)
The price of chinese sets and the backup of a UK dealer. I bought my TIG set from them, excellent customer service.
To run it off bio or veg I think the fuel needs to be pressurised and atomised, otherwise it probably won't burn properly. It would mean adding some sort of compressed air into the fuel system and some sort of injector.
Indeed it does, and while it can be done with compressed air, a domestic oil burner offers a much simpler solution.
You have to be careful of 'turbine runaway' when running on liquid fuels. So called, because if it happens, you run away. Quickly. It occurs when the fuel pools in the bottom of the combustion chamber and burns uncontrollably - because it's already in there you loose control of the turbine speed and it will keep accelerating until it either runs out of fuel or comes apart. I believe the done thing is to have a throttle on the inlet when running on liquid fuels so you can shut off the air.
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and Pete is currently working on a valve type pulse jet powered lawn mower. This is truely insane with 80% the power of the buzzing bomb!!
That is not such a crazy idea. I would imagine that the power to weight ratio of a jet engine would be far greater than a piston engine.
I mow lawns for a living, among other things.
My mower is 33KG, it's a heavy domestic mower. I need something a good bit more powerful and stronger, like a commercial mower. Trouble is, any heavier, and it's just too heavy. Almost every lawn I have is either steep, or has access up or down steps, or over a wall. I just can't go any heavier.
Something with twice the power, and a maximum of 20KG would be ideal.
So long as it doesn't require half the neighbourhood to wear ear defenders, and doesn't frighten the customer with huge flames or banging noises, there would be a big market for something like that.
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I'll speak to the guy that runs the lorry workshop at work, he may have an old one kicking about.
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hanks Mark, and if you happen to come across any steel tubing, 6" 4" or 3" I would also appreciate it cheers.
James
Been looking at that site for welders, some nice bits of kit there! I can't find any cheap oil fired boilers to cannibalise and the pumps seem quite expensive. I am guessing a gear pump from an electric power steering pump will do it.
I have seen exactly what you are talking about on a video of a Rolls Royce engine when they got the firing sequence wrong, it was spewing out fuel! Considering it uses 90 Gallons at idle and 2500 on full thrust it was rather a lot of fuel being spewed out! Probably not as much as the brown matter deposited in the trousers of the operators! hahaha ;D
I will have a couple of twin tanking valves that I could use to rig up some sort of shut off and cut the fueling.
I think I will still need a flame in there like a propane torch type thing to ignite the veg/bio.
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and Pete is currently working on a valve type pulse jet powered lawn mower. This is truely insane with 80% the power of the buzzing bomb!!
That is not such a crazy idea. I would imagine that the power to weight ratio of a jet engine would be far greater than a piston engine.
I mow lawns for a living, among other things.
My mower is 33KG, it's a heavy domestic mower. I need something a good bit more powerful and stronger, like a commercial mower. Trouble is, any heavier, and it's just too heavy. Almost every lawn I have is either steep, or has access up or down steps, or over a wall. I just can't go any heavier.
Something with twice the power, and a maximum of 20KG would be ideal.
So long as it doesn't require half the neighbourhood to wear ear defenders, and doesn't frighten the customer with huge flames or banging noises, there would be a big market for something like that.
I hope this answers your question:
https://www.youtube.com/watch?v=HpbKGvjqsxM
hahahaha
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That is so funny! What a nutter!
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and Pete is currently working on a valve type pulse jet powered lawn mower. This is truely insane with 80% the power of the buzzing bomb!!
That is not such a crazy idea. I would imagine that the power to weight ratio of a jet engine would be far greater than a piston engine.
I mow lawns for a living, among other things.
My mower is 33KG, it's a heavy domestic mower. I need something a good bit more powerful and stronger, like a commercial mower. Trouble is, any heavier, and it's just too heavy. Almost every lawn I have is either steep, or has access up or down steps, or over a wall. I just can't go any heavier.
Something with twice the power, and a maximum of 20KG would be ideal.
So long as it doesn't require half the neighbourhood to wear ear defenders, and doesn't frighten the customer with huge flames or banging noises, there would be a big market for something like that.
I hope this answers your question:
https://www.youtube.com/watch?v=HpbKGvjqsxM
hahahaha
I was thinking of something a little less, um, conspicuous.....
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Sorry mate, no luck with the turbo, they all go back as exchange units.
But I do have the old one I took off the merc, it's in bits but I think I can remember how to put it back together.
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the biggest problem you will have is keeping enough oil flow to the bearings. the rest is easy. you need a lot of oil flow to stop the whole thing seizing up as it gets hot. i had a play with them some years ago. there is a Canadian guy who has done a lot of work on getting them to run for more than a few seconds. not sure about colin furze. he seems a bit shall we say reckless? if you want something with the gee whizz factor for the BBB how about a pulse jet. much easier. a bit of pipe a bit of etched spring steel for a reed valve and a fuel supply. dangerous very hot and also unbelievably noisy. just what you want for a quiet weekend in the country.
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Sorry mate, no luck with the turbo, they all go back as exchange units.
But I do have the old one I took off the merc, it's in bits but I think I can remember how to put it back together.
No probs Mark, just keep an eye out for some steel tubing if you can thanks mate.
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the biggest problem you will have is keeping enough oil flow to the bearings. the rest is easy. you need a lot of oil flow to stop the whole thing seizing up as it gets hot. i had a play with them some years ago. there is a Canadian guy who has done a lot of work on getting them to run for more than a few seconds. not sure about colin furze. he seems a bit shall we say reckless? if you want something with the gee whizz factor for the BBB how about a pulse jet. much easier. a bit of pipe a bit of etched spring steel for a reed valve and a fuel supply. dangerous very hot and also unbelievably noisy. just what you want for a quiet weekend in the country.
Hmmm I can probably get the oil pressure and flow sorted using some sort of gear pump. I am trying to get the fuelling design sorted. How to run it on veg that is the question! I think a propane flame would be put out by the compressed air. I will experiment with some nozzles.
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keep an eye out for some steel tubing if you can thanks mate.
I have a 4 foot length of 3 1/2 inch steel pipe if you can arrange collection.
Richard.
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I have a 4 foot length of 3 1/2 inch steel pipe if you can arrange collection.
Richard.
I could pick that up when I come up for the drums, that'll get it closer for him, I've got someone coming up to me soon who might be able to get it even closer.
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That would be great! I don't want this to go the way of my other projects, i.e all enthusiasm for a week and then it all fizzes out! :P
I hope to get it working by the BBB.
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I may have the drums next week also have some 1 inch BSP nipples for you if required plus one or other bits.
Will let you know ASAP.
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https://www.youtube.com/watch?v=bMWFkr24tdI
This guy seems to have built what I would like to build. It starts on gas (propane) warms up the ignition chamber and when correct temperature is reached he lets diesel into it.
I have just checked my shed and I have one of these:
http://www.yachtshop.it/code_osculati/1740300/Osculati%20-%20fuel%20solenoid%20valve%2012V%20RINa%20%5B17.403.00%5D
I can use that to shut off liquid fuel. Another guy had built a similar engine and had used 3 pids in series connected to various sensors and it would shut down if any of the pids detected operation outside the parameters.
Now I need to experiment with nozzle making!
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I have a new 12V fuel shutoff valve sitting unused, yours if you want it.
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James we forgot the steel pipe for Kamaangir on your last visit
is there a way to get it to him now.
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James we forgot the steel pipe for Kamaangir on your last visit
is there a way to get it to him now.
We'll have to see if we can set up a rely on the other channel.
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We'll have to see if we can set up a rely on the other channel.
Hopefully the relay service will come to the rescue will you
post it up or shall I.
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Relay advert done.
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Noted and added a bit of info