| 发明名称 |
DUAL-STAGE GEAR PUMP WITH REDUCED PRESSURE RIPPLE |
| 摘要 |
A fuel system includes a fuel gathering system in fluid communication with a fuel storage container, and a fluid pump assembly in fluid communication with the fuel gathering system. The fluid pump assembly includes a main gear pump stage and a first flow attenuator. A main driven gear is meshed with a main drive gear in a main pump conduit, and a main pump bearing assembly rotatably supports the main drive gear and the main driven gear. The first flow attenuator is disposed around the main pump conduit, and includes a substantially polygonal fluid opening. Edges of the opening are substantially aligned with an undercut bearing portion on at least one of an inlet side and an outlet side of the main pump conduit to define a non-round fluid boundary. |
| 申请公布号 |
US2016023774(A1) |
申请公布日期 |
2016.01.28 |
| 申请号 |
US201414337924 |
申请日期 |
2014.07.22 |
| 申请人 |
HAMILTON SUNDSTRAND CORPORATION |
发明人 |
Ni Weishun William |
| 分类号 |
B64D37/10;F04C11/00;F04C2/08;F04C15/00;B64D37/04;B64D37/34 |
主分类号 |
B64D37/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fuel system comprising:
a fuel storage container; a fuel gathering system in fluid communication with the fuel storage container; and a fluid pump assembly in fluid communication with the fuel gathering system, the fluid pump assembly comprising:
a main gear pump stage including a main driven gear meshed with a main drive gear in a main pump conduit, and a main pump bearing assembly rotatably supporting the main drive gear and the main driven gear; anda first flow attenuator disposed around the main pump conduit, the first flow attenuator including a substantially polygonal fluid opening having edges substantially aligned with an undercut bearing portion on at least one of an inlet side and an outlet side of the main pump conduit to define a non-round fluid boundary. |
| 地址 |
Charlotte NC US |
