Pressurized fluid mechanism with two cubic capacities and closed circuit applying same
US5001964A · kind A · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/25482
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a hydraulic motor capable of presenting two active cubic capacities of different values, as described in FR-A-2 481 755, and comprising in particular a shuttle valve presenting an inner conduit, wherein a bleeding conduit is arranged in the member for selecting the cubic capacity and communicates with the inner conduit of the shuttle valve, which it connects to an evacuation, while a calibrated restriction is disposed in the bleeding conduit. One application is the production of refrigeration of the hydaulic fluid for supplying this mechanism in closed circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.