Regulating devices for a plurality of pumps driven by a common source
US4405287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Jun 23, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A regulating device is provided for an aggregate of several pumps driven by a primary source at least one of which is adjustable and with a constant volume auxiliary control pressure pump driven by the same primary source in the delivery line of which a restrictor is located with the pressure gradient in front of and following the restrictor acting on the control pressures of an hydraulically regulated discharge valve in a drain line connected to the delivery line of the auxiliary pump, the drain line being connected in front of the restrictor, adjusting means connected to each adjustable pump and a control pressure line to which all adjusting means are connected, branching off from the drain line ahead of the discharge valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.