发明申请
- 专利标题: CONTROLLABLE LUBRICATING OIL DELIVERY SYSTEM FOR INTERNAL COMBUSTION ENGINES
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申请号: US17044897申请日: 2019-04-23
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公开(公告)号: US20210148259A1公开(公告)日: 2021-05-20
- 发明人: Franz PAWELLEK
- 申请人: NIDEC GPM GMBH
- 申请人地址: DE Auengrund OT Merbelsrod
- 专利权人: NIDEC GPM GMBH
- 当前专利权人: NIDEC GPM GMBH
- 当前专利权人地址: DE Auengrund OT Merbelsrod
- 优先权: DE102018109866.9 20180424
- 国际申请: PCT/EP2019/060282 WO 20190423
- 主分类号: F01M1/16
- IPC分类号: F01M1/16 ; F01M1/02
摘要:
An adjustable lubrication oil conveying system for a combustion engine is proposed which comprises a screw pump for conveying lubrication oil with at least one screw rotatably accommodated in a screw chamber, wherein the screw pump is arranged such that a suction side of the screw chamber is connected with an intake path from an oil sump of the combustion engine, and a pressure side of the screw chamber is connected with a feed path to moving parts of the combustion engine. The lubrication oil conveying system is characterised in particular in that the screw pump is driven by the combustion engine; and towards the suction side of the screw chamber, an adjustable throttle valve is provided by means of which a flow cross-section of the intake path is gradually limitable between an opened position and a closed position. Therefore, the oil pressure in a combustion engine is, for the first time, adjusted by suction throttling in connection with a screw pump.
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