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1. 发明授权

US6135078A Variable valve timing control apparatus for an internal combustion engine 失效
标题翻译：用于内燃机的可变气门正时控制装置
公开(公告)号：US6135078A
公开(公告)日：2000-10-24
申请号：US190221
申请日：1998-11-13
申请人： Toshinori Doi , Osamu Sato , Jouji Yamaguchi , Akira Hori
发明人： Toshinori Doi , Osamu Sato , Jouji Yamaguchi , Akira Hori
IPC分类号： F01L1/344 , F01L13/00 , F01L1/34
CPC分类号： F01L1/344 , F01L13/0042 , F01L2201/00 , F02D2041/001
摘要： A cam has a profile variable from a high lift curve to a low lift curve in an axial direction. A driving mechanism shifts a cam shaft in the axial direction. A phase adjusting mechanism adjusts the rotational phase of the cam shaft relative to a driving shaft of the internal combustion engine. Angle detecting teeth are shift detecting teeth are alternately arranged on a same cylindrical surface of the cam shaft. Each shift detecting tooth incline at a predetermined angle with respect to an axis of the cam shaft so as to provide angularly advanced and retarded portions in a rotational direction of the cam shaft. A pickup generates sensing signals responsive to the angle detecting teeth and the shift detecting teeth. The sensor faces the angularly advanced portion of the shift detecting tooth when the low lift curve of the cam is selected and faces the angularly retarded portion of the shift detecting tooth when the high lift curve of the cam is selected.
摘要翻译：凸轮具有从高升力曲线到轴向方向的低升力曲线的轮廓变量。驱动机构沿轴向移动凸轮轴。相位调整机构调节凸轮轴相对于内燃机的驱动轴的转动相位。角度检测齿是移动检测齿交替地布置在凸轮轴的同一圆柱形表面上。每个换档检测齿相对于凸轮轴的轴线以预定的角度倾斜，以便在凸轮轴的旋转方向上提供角度提前和延迟的部分。拾取器产生响应于角度检测齿和换档检测齿的感测信号。当选择凸轮的高升力曲线时，当选择凸轮的低升力曲线并且面对换档检测齿的角度延迟部分时，传感器面向换档检测齿的角度前进部分。

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