VALVE OPERATING SYSTEM IN INTERNAL COMBUSTION ENGINE

An actuator is connected to one of components forming a power transmitting device capable of transmitting a power provided by a valve operating cam provided on a cam shaft, so that the actuator can drive an engine valve in a lift amount which is obtained by addition of a lift amount of the engine va...

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Bibliographische Detailangaben
Hauptverfasser: GOMI, TAKESHI, OHISHI, HIDETOSHI, NEMOTO, HIROTOMI, TANAKA, SHIGEKAZU, SHIMASAKI, YUICHI, ISHIGURO, TETSUYA
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:An actuator is connected to one of components forming a power transmitting device capable of transmitting a power provided by a valve operating cam provided on a cam shaft, so that the actuator can drive an engine valve in a lift amount which is obtained by addition of a lift amount of the engine valve based on a cam profile of the valve operating cam and a lift amount of the engine valve based on the operation of the actuator. Thus, a portion of the lift amount of the engine valve is borne by the valve operating cam, whereby a valve-opening power borne by the actuator can be reduced, as compared with a system designed so that the engine valve is driven by only the actuator only. The amount of electric power consumed by the actuator can be smaller.