Patent ID: 8640660
Filing Date: 2014-02-04
Classification: F01L

Abstract:
1. A continuously variable valve actuation apparatus for an internal combustion engine, said valve actuation apparatus comprising: a driving shaft that is rotated by the engine, a first gear wheel attached to said driving shaft, a frame pivotally supported about said driving shaft such that said frame can rotate about said driving shaft and have an angular position within a predetermined angular interval about said driving shaft, a first means for controlling the angular position of said frame, a valve-lifting crankshaft supported by said frame, a second gear wheel attached to said valve-lifting crankshaft and engaged with said first gearwheel, a rocker cam assembly including a cam having at least one lobe, a connecting rod pivotally connected to said valve-lifting crankshaft and said rocker cam assembly, a cam follower contacting said at least one lobe, a charge exchange valve connected to said cam follower, wherein said cam follower is operable to actuate said charge exchange valve, a second means for urging said cam follower against said at least one lobe, whereby stroke, lifting duration, and phase of said charge exchange valve is controlled by the angular position of said frame.