发明名称 |
VALVE GEAR FOR INTERNAL COMBUSTION ENGINE |
摘要 |
<p>A valve operating device (100) opens and closes a valve (2) of an internal combustion engine by driving a valve stem axially. A rocker cam (10) that rocks about a rocking shaft (21c) in synchronization with a rotation of the internal combustion engine includes a driving cam portion (11) and a lift restricting cam portion (12). A cam follower (41) lifts the valve by contacting the driving cam portion (11) slidingly so as to convert the rocking of the rocker cam (10) into an axial direction motion of the valve stem. A restricting member (42) formed integrally with the cam follower (41) in a rocker arm (40) prevents the cam follower (41) from separating from the driving cam portion (11) in cooperation with the lift restricting cam portion (12), and as a result, an irregular valve motion is prevented regardless of a rocking acceleration of the rocker cam (10).</p> |
申请公布号 |
EP2133519(A1) |
申请公布日期 |
2009.12.16 |
申请号 |
EP20070828374 |
申请日期 |
2007.09.18 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
TAKEMURA, SHINICHI;AOYAMA, SHUNICHI;FUKAMI, TORU;ARINAGA, TSUYOSHI;SUGIYAMA, TAKANOBU |
分类号 |
F01L13/00;F01L1/08;F01L1/18;F01L1/30 |
主分类号 |
F01L13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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