In its simplest form, a Wankel rotary engine has just two moving parts: the rotor and the output shaft. Compare that to modern piston cylinder engines, which have over 40 moving parts.

But aside from sealing, poppet valves don’t offer many advantages. Still, engineers kept pushing: better springs, VVT, and all kinds of breathing tricks: variable intake manifolds, forced induction, ...

rotary valve 1 Articles . Rotary Valve Engine Gets A Second Chance, ... Being a first-generation prototype, it lacks seals and other fancy parts to keep oil out of the combustion chamber.

There isn’t really a clear diagram in either the article (which shows a conventional 4t engine) or video but this still works on a 4 stroke concept – an independent valve system with states ...

Rotary valve could help propel craft to Mars one day Date: April 3, 2013 ... Rather than redundancy, where parts are duplicated so new ones can take over for failed ones, ...

Company: Leslie Controls, a Circor Intl. brand Product: K-Max Eccentric Plug Rotary Control Valve Description: This valve incorporates the cam-action, low-friction plug operation that provides tight ...