Fluid feed device comprising a constant cylinder capacity pump and at least one variable cylinder capacity pump
US3968650A · kind A · utility
4Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | May 2, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid feed device comprising a constant cylinder capacity pump and at least one variable cylinder capacity pump driven from a single prime mover, the variable cylinder capacity pump being provided with a regulator for reducing its cylinder capacity as the feed pressure increases. The regulator is such as to reduce the power absorbed by the variable cylinder capacity pumps as the pressure increases by an amount equal to the increase in the power absorbed by the constant cylinder capacity pump such that the total power absorbed by the pumps remains constant and equal to the power of the prime mover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.