公开(公告)号：US5937811A

公开(公告)日：1999-08-17

申请号：US978578

申请日：1997-11-26

申请人： Katsuhiko Motosugi ,  Kiyoharu Tsuda

发明人： Katsuhiko Motosugi ,  Kiyoharu Tsuda

IPC分类号： F01L1/18 ,  F01L1/34 ,  F01L13/00

CPC分类号： F01L1/185

摘要： A variable valve system according to the present invention comprises a solid cam having a cam profile continuously varying in axial direction of a cam shaft in a range from lower revolutions to higher revolutions of an internal combustion engine, a displacement device for axially displacing the solid cam continuously or stepwise, and an arm that swings in accordance with the cam profile of the solid cam to open and close a valve. The arm is provided with a cam contacting mechanism that is formed of a seat and a cam contacting portion. The cam contacting portion is fitted into the seat such that the cam contacting portion contacts the solid cam and follows changes in inclination of a tangential line defined by the cam contacting portion and the solid cam when the solid cam rotates.

摘要翻译： 根据本发明的可变阀系统包括：实心凸轮，其具有在内燃机的较低转速到较高转速范围内在凸轮轴的轴向方向上连续变化的凸轮轮廓，用于轴向移动固体凸轮的位移装置 连续或逐步的臂，以及根据实心凸轮的凸轮轮廓摆动的臂以打开和关闭阀。 臂设置有由座和凸轮接触部形成的凸轮接触机构。 凸轮接触部分装配到座中，使得凸轮接触部分接触实心凸轮，并且当实心凸轮旋转时，随着由凸轮接触部分和实心凸轮限定的切线的倾斜变化。