Variable displacement pumps
US5064351A · kind A · utility
14Cited by
9References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/324
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary, variable-displacement hydraulic pump (1) in use driven by a prime mover (4), the pump (1) comprising control means (5) for varying the displacement of the pump and means (17) responsive to a signal related to the rotational speed of the pump and operable to override the control means so as, in use, to prevent stalling of the prime mover (4) within a predetermined operational range of the prime mover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.