发明名称 |
Valve train device for engine |
摘要 |
A valve train device for an engine is configured to pivot a rocker arm supported on a rocker arm support shaft to drive a valve which opens and closes a valve opening formed in a combustion chamber. The device comprises a valve drive device and a swing member pivotally supported on a swing member support shaft and driven to pivot about the swing member support shaft by the valve drive device. A control arm is disposed between a swing cam surface formed on the swing member and a rocker-side surface formed on the rocker arm. The control arm is configured for transferring motion of the swing cam surface to the rocker-side surface. A displacement mechanism is provided for displacing a contact point between the control arm and the swing cam surface and a contact point between the control arm and the rocker-side surface. The rocker-side surface has an arcuate shape which arcs about a center of pivoting motion of the swing member and wherein the rocker-side surface or an extension of the rocker-side surface about said center of pivoting motion of the swing member passes in substantially near a center of swing of the rocker arm.
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申请公布号 |
US7281504(B2) |
申请公布日期 |
2007.10.16 |
申请号 |
US20050263528 |
申请日期 |
2005.10.31 |
申请人 |
YAMAHA HATSUDOKI KABUSHIKI KAISHA |
发明人 |
FUJITA HIDEO;HATAMURA KOICHI |
分类号 |
F01L1/18;F01L1/34;F01L1/08;F01L13/00 |
主分类号 |
F01L1/18 |
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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