发明名称 |
Valve actuator for actuating a gas exchange valve of an internal combustion engine |
摘要 |
A valve actuator for operating a gas exchange valve of an internal combustion engine has a sleeve-shaped positioning piston which is connected to a valve stem, has at least two shell-shaped wedge pieces enclosing a stem end of the valve stem, whose radially outer peripheral surfaces have a conical segment which tapers off with increasing distance from the gas exchange valve and which is at least partially surrounded by a conical clamping sleeve having a mating conical inner surface and is connected to the positioning piston. The wedge pieces are axially form-fittingly and rotatably connected to a threaded bolt. A threaded segment is provided on the threaded bolt via which the wedge pieces and the conical clamping sleeve are axially attachable to one another.
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申请公布号 |
US7360517(B2) |
申请公布日期 |
2008.04.22 |
申请号 |
US20050535132 |
申请日期 |
2005.12.13 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
HAMMER UWE;LANG PETER;REIMER STEFAN |
分类号 |
F01L1/14;F01L1/46;F01L9/02 |
主分类号 |
F01L1/14 |
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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