| 摘要 |
PROBLEM TO BE SOLVED: To vary a valve opening lift of an engine valve by a simple structure. SOLUTION: In this variable lift valve gear, a push-pressing surface 52 and a pressure receiving surface 53 which are mutually opposed are provided respectively on a first rocker arm 48 which follows a valve gear cam 46 and a second rocker arm 50 interlocked and connected to the engine valve. The other end of a control link 54 having at its one end an abutting transmission part 55 slid together with the push-pressing surface 52 and pressure receiving surface 53 is rotatably supported by a movable spindle 56. The push-pressing surface 52 and pressure receiving surface 53 are formed such that an rotation amount transmitted from the first rocker arm 48 to the second rocker arm 50 through the abutting transmission part 55 in association with the rotation of the valve gear cam 46 is varied according to variations in the sliding range of the abutting transmission part 55 in response to the displacement of the movable spindle 56. COPYRIGHT: (C)2008,JPO&INPIT
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