发明名称 |
Dual oil supply pump |
摘要 |
An automotive engine oil pump assembly having first and second pump mechanisms contained within a common housing. A shaft rotatably supported in the housing drives the pump mechanisms in a conventional manner. The pump mechanisms are offset in phase to reduce flow pulsations through the housing and limit pump noise and vibration. The first pump mechanism communicates with a common inlet and first outlet of the housing. The second pump mechanism communicates with the common inlet and second outlet of the housing. A common reservoir connected to inlets of the first and second oil pump mechanisms provides a supplemental oil source to balance oil pressures at the pump inlets to prevent pump cavitation and further reduce pump noise and vibration.
|
申请公布号 |
US7290991(B2) |
申请公布日期 |
2007.11.06 |
申请号 |
US20040781430 |
申请日期 |
2004.02.18 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
STALEY DAVID R.;WHITE BRIAN D. |
分类号 |
F04B49/00;F04B23/00;F04B23/06;F04B23/08;F04C2/10;F04C11/00;F04C14/02;F04C14/26;F16N13/00 |
主分类号 |
F04B49/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|