In the recent discussion on the StarRotor engine, I suggested that Claw Pumps could have advantages over gerotors in engines. I've expanded on it slightly here:
http://www.halfbakery.com/idea/Claw_20Pump_20As_20Rotary_20Engine#1079494717
And here's a diagram of a Claw Pump...
This question was inspired by a display of antique "hit and miss" engines. In these engines, every power stroke gets the maximum fuel/air charge, but they don't fire on every cycle. Throttled engines, of course, fire on every cycle, but they seldom use the optimum fuel/air charge...
Forgive me if this is a newbie question. "Piston valves" were the preferred type in steam engines. Why were they unsuitable for internal combustion? Can modern materials make them usable?
I can think of several advantages of sliding piston valves:
1. The valve can remain fully...
