Post Number: 2335
|Posted on Saturday, February 20, 2010 - 05:43 am: ||
Post Number: 58
|Posted on Saturday, February 20, 2010 - 06:53 am: ||
I never knew of such an engine! WoW!
This design would escape the problem of crankcase oil dilution, as the petrol/air mix is not drawn in thru the crankcase at all! Perhaps in this case straight petrol could be used, and the crankcase be filled as a 4 stoke is, with oil!?!? This oil could not be lost up any transfer ports, then burnt, wastefully.
It would have been as dear to make as the 4 stroke, so if people didn't understand the benefit, perhaps they'd buy the simple valveless 2 stroke.
Piston weight would be large, but putt-putts don't rev fast anyhoo. I doubt it would have made the 1200 revs under load as a single cylinder?
Does anyone know of one of these engines in existence - and how well it goes?
Thanks for posting!
I wonder if there are any petrol 2 strokes that use a poppet EXHAUST valve in the head, and crankcase induction?
Post Number: 509
|Posted on Saturday, February 20, 2010 - 09:54 pm: ||
Interesting concept Richard, piston resembles the vacuum engines designed for milking machines.
These post keep the site interesting, thanks.