Dual pump
US6953327B1 · kind B1 · utility
28Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Jul 9, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B23/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are mounted on one side of the hydraulic mounting member in a pump cavity, and the center section and second housing element form a gear cavity in which gears to connect the two pump input shafts are located. Various charge pumps or auxiliary pump configurations are disclosed, including one embodiment where the input shaft gears themselves may act as a charge pump for the pump assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.