Gallery, Projects and General > Project Logs
Rocking Engines
sbwhart:
--- Quote from: NickG on July 14, 2009, 06:26:59 AM ---Just had a closer look at the drawings - I like it! Will give this one a go when get my workshop sorted.
You got one working yet Stew?
--- End quote ---
Hi Nick
Been up at Ridsdale saying my good buys to the chaps, so not had any shop time, tomorrow night I'm going to give it a good go.
Stew
Divided he ad:
Ok.... So this is just annoying!!
I'm going to have to add this little beauty to my to do list! :proj:
After seeing all of those videos thanks to David D I'm really going to have to have a go at at least one!!! ::)
:)
Looking good Stew...... Drilling to the wrong depth..... What'd be easier..... re-making the piston/con rod or the cylinder?
I'm sure it'd work with a shorter stroke?
Now sitting here re-designing the exterior of the engine I haven't yet seen the plans for :smart:..... BLING!
Ralph.
John Hill:
OK, colour me dumb!!! :scratch:
I can see how the piston 'opens' and closes to get the required exhaust valve effect but what happens on the inlet? Is all just being wasted while the piston is on the way 'up'?
bogstandard:
You got it in one John, unless there is a poppet valve arrangement in the head to only allow it to 'fire' when the piston reaches TDC. That was what the goon was showing in the little plastic engine in the vid that Dave provided. Otherwise it is a continuous pressure feed that the engine only uses when on the power stroke. Half used, half wasted.
John
John Hill:
Ah, thanks John, still it is a neat enough little engine in a tiny size and one that runs so fast you would not notice air escaping 'tween strokes.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version