Power steering was not available on Corvettes for the first 10 years of production. Equipped with skinny tires and small-blocks, the lack of power steering wasn’t a big deal for the first generation.

The "rotary valve" is the key to the operation of power steering. It directs the power steering fluid under pressure to either side of the rack piston, which converts hydraulic power to mechanical ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...