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 ...

The hunt for efficient engine valve technology can be a never-ending journey into cam timing, various combustion cycles, and lift and duration adjustments. For that reason, some companies believe ...

Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

When you check out the features of a new car, you’ll probably be bombarded with glowing words about its engine’s “advanced valvetrain technology.” How did this happen? They don’t shower us with ...

You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

Variable valve timing has been available in cars for almost half a century, first appearing in the Alfa Romeo Spider as far ...

WESTMINSTER, S.C.--(BUSINESS WIRE)--Power management company Eaton has announced its U.S. Engine Valve (USEV) joint venture with Nittan Valve Company, Ltd. will invest $40 million in engine valve ...

View post: The Audi Q9 Has Three Trims, but the $93,300 One Makes the Most Sense Ford will recall 90,736 vehicles as engine intake valves in the vehicles may break while driving, the National Highway ...