发明名称 |
VARIABLE DISPLACEMENT LUBRICANT PUMP |
摘要 |
A lubricant pump comprises a shiftable control ring, a pump rotor rotating in the control ring, a pump outlet, and a pressure control system. The pressure control system comprises a pressure control chamber which pushes the control ring into a high pumping volume direction, an engine pressure input port connected to an engine pressure output port of an engine, a pilot chamber connected to the engine pressure input port which pushes the control ring into a low pumping volume direction, and a pressure control valve which controls a pressure in the pressure control chamber. The pressure control valve comprises a control valve plunger which opens/closes a control port to connect/disconnect the pressure control chamber to the atmospheric. The control valve plunger is fluidically connected to the engine pressure input port so that the control valve plunger is pushed by a lubricant pressure of the engine into an open position. |
申请公布号 |
EP3004647(A1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20130725636 |
申请日期 |
2013.05.24 |
申请人 |
PIERBURG PUMP TECHNOLOGY GMBH |
发明人 |
CELATA, NICOLA;MORIGLIA, MAURIZIO;MALOTTI, ANDREA;NOVI, NICOLA |
分类号 |
F01M1/02;F01M1/16;F04C14/18;F04C14/24;F04C15/00;F04C15/06 |
主分类号 |
F01M1/02 |
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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