Charge flow priority circuit
US5020324A · kind A · utility
12Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Mar 13, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/615
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A charge flow distribution valve routes all charge pump flow into a main pump until the main pump has sufficient inlet pressure. The valve opens to a first stage which routes excess charge flow to lubrication circuits. At a slightly higher main pump inlet pressure, it also routes oil to an inlet of the charge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.