pampas
New member
who have an interest in small engineering, or are in the middle of rebuilding an engine. watch with awe, Gordy.
http://wimp.com/tiniestengine/
http://wimp.com/tiniestengine/
For those
- Thread starter pampas
- Start date
Flossdog
Member
Wow! Truely amazing. I once built a 3.5" steam loco, 0-6-0 tank and that was fiddly enough for me. At the other end of the scale, I am a friend of the museum of internal fire which is local to me and they have lots of really massive internal combustion engines. www.internalfire.com
bluey01
New member
that makes my head hurt, but fantastic!
Twister_Ken
Well-known member
It would have been so much better if it had been built in a garden shed.
Lakesailor
New member
If you are going to do it in the kitchen you need to put oil on the worksurfaces.
This video from the same site of a plane taking off on it's own is interesting.
This video from the same site of a plane taking off on it's own is interesting.
ProDave
Well-known member
Okay, i'm no mechanic, but how does that work?
Every engine I have ever seen, has 2:1 gearing from the crankshaft to the camshaft(s)
But that engine has 1:1 gearing from crankshaft to camshafts.
please explain in simple terms.
Every engine I have ever seen, has 2:1 gearing from the crankshaft to the camshaft(s)
But that engine has 1:1 gearing from crankshaft to camshafts.
please explain in simple terms.
davidej
Well-known member
That confirms my view -that it isn't actually turning under its own power, probably a hidden eletric motor. Apart from the cam gearing, there doesn't seem to be a carburettor or fuel suppy.
Beautiful minature engineering, nevertheless
Beautiful minature engineering, nevertheless
Tribute
New member
It appears to be running on compressed air, maybe?
stuhaynes
New member
Loved the video, and more than happy to show my age (if required). I remember the tale of the yanks who drilled a hole through a sewing needle and sent it to a UK establishment (a university I think) just to show off their engineering talents. We Brits, of course, threaded the bl**dy hole and returned it with a bolt in it! Anyone else remember this, or any other other pointless excercises.?
Back to the OP. I didn't notice any piston rings!!!
misterg
Active member
Avocet
Well-known member
Yes, it's running on compressed air. Don't think it was ever intended to run on any kind of fuel, although it does have twin water pumps and some sort of cooling manifold, but I don't think there's any way for coolant to flow round the cylinders.
Can't explain the valve timing though. I wonder if, (because it doesn't have a "compression" stroke, as such), whether it can get away with opening its valves twice as often as it needs to? The induction stroke is also the power stroke, I suppose?
Can't explain the valve timing though. I wonder if, (because it doesn't have a "compression" stroke, as such), whether it can get away with opening its valves twice as often as it needs to? The induction stroke is also the power stroke, I suppose?
misterg
Active member
If it's running on compressed air, the inlet valve needs to open on the 'down stroke' to admit air and the exhaust needs to open on the 'up stroke' to let it out again - every revolution, hence the 1:1 gearing.
Andy
Andy
saltylegs
Active member
lovely
boguing
Active member
pampas
New member
personally I think its running on compressed air,but also think its really a refridgerator compressor, as one of the captions mentions refigaot or something likes that. Lovely engineering all the same, assume waste oil for all the running gear so its a demostration project?
