发明授权
- 专利标题: Device for controlling a gas exchange valve
- 专利标题(中): 用于控制气体交换阀的装置
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申请号: US10471907申请日: 2003-01-17
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公开(公告)号: US06857618B2公开(公告)日: 2005-02-22
- 发明人: Thomas Ludwig , Udo Diehl , Bernd Rosenau , Simon Kieser
- 申请人: Thomas Ludwig , Udo Diehl , Bernd Rosenau , Simon Kieser
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 代理机构: Kenyon & Kenyon
- 优先权: DE10210334 20020308
- 国际申请: PCTDE03/00121 WO 20030117
- 国际公布: WO0307677 WO 20030918
- 主分类号: F01L9/02
- IPC分类号: F01L9/02 ; F16K31/02
摘要:
An apparatus for controlling gas exchange valves includes at least one valve positioner, associated with a gas exchange valve, and a pressure supply device which supplies the valve positioner with a fluid under high pressure. The valve positioner encompasses a working cylinder having a positioning piston, coupled to the gas exchange valve, which delimits an upper pressure space for opening the valve and a lower pressure space for closing the valve, and encompasses a control valve controlling the hydraulic pressure in the pressure spaces. In order to reduce the manufacturing costs and electrical energy demand of the apparatus, the upper pressure space is connected directly, and the lower pressure space via a restrictor throttle, to the pressure supply device; and the control valve is connected to the lower pressure space and to a relief line. Depending on the switch position, the control valve additionally connects the lower pressure space to the relief line or blocks it off from the relief line.
公开/授权文献
- US20040089829A1 Device for controlling a gas exchange valve 公开/授权日:2004-05-13