Unlike piston engines, Rotary engines don’t require valves to run. Here’s how rotary engines work and why some designs have incorporated valves.

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, ...

Being a first-generation prototype, it lacks seals and other fancy parts to keep oil out of the combustion chamber. Normal engine oil has been added to the fuel as a precaution as well.

Being a first-generation prototype, it lacks seals and other fancy parts to keep oil out of the combustion chamber. Normal engine oil has been added to the fuel as a precaution as well.

A rotary fuel delivery valve just might help us get manned space flights out of our immediate neighborhood one day, and it could have practical terrestrial applications.

Description: This valve incorporates the cam-action, low-friction plug operation that provides tight shutoff over a long service life in a variety of flow control applications, including high- and low ...