发明申请
- 专利标题: RAPID ZERO FLOW LUBRICATION METHODS FOR A HIGH PRESSURE PUMP
- 专利标题(中): 用于高压泵的快速零流量润滑方法
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申请号: US14231451申请日: 2014-03-31
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公开(公告)号: US20150275816A1公开(公告)日: 2015-10-01
- 发明人: Ross Dykstra Pursifull , Gopichandra Surnilla , Hao Zhang
- 申请人: Ford Global Technologies, LLC
- 申请人地址: US MI Dearborn
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 当前专利权人地址: US MI Dearborn
- 主分类号: F02D41/38
- IPC分类号: F02D41/38 ; F02D41/30
摘要:
Methods are provided for rapid zero flow lubrication of a high pressure fuel pump, wherein a fuel rail pressure rapidly responds to commanded duty cycles. A method is needed to control operation of the high pressure pump during times when no direct injection is requested by an engine system and when operation of the high pressure pump is continued to maintain pump lubrication. To lubricate the high pressure pump while gaining zero flow rate data, methods are proposed that involve both open and closed loop control of the high pressure pump.
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