Importance

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Abstract

A valve actuation mechanism are disclosed, which is capable of controlling the lift of valves of an engine by more than three on/off combinations. In a preferred embodiment of the invention, the valve actuation mechanism is designed to control the opening and closing of engine valves by the use of an uncomplicated structure with minimum solenoid valves and hydraulic lines. By the valve actuation mechanism of the invention, not only the design of hydraulic line as well as that of space mechanism of an engine can be greatly simplified, but also the opening and closing of valves of an engine can be controlled thereby for enabling the engine to provide different valve lifts and thus satisfying different engine requirements, such as output power increasing, combustion efficiency improving, or cylinder deactivation.

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First Claim