Electrohydraulic control arrangement
US4357955A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Oct 23, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87241
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrohydraulic control arrangement comprising at least one terminal plate having an inlet port connected to a pump pumping fluid under pressure from a tank and an outlet port connected to a return conduit leading to the tank and a plurality of consumer plates having consumer ports connected to consumers of pressure fluid. All plates are arranged side by side and held in abutting relationship by tightening screws extending through axially aligned bores through said plates. The plates are further provided with three axially aligned fluid channels therethrough, one to be connected to the inlet port and the two others to the outlet port. The selective connection of the fluid channels to the respective ports is accomplished in the terminal plate by a control slide movable by auxiliary valves, one of which is controlled by an electromagnet and by an additional control slide in each of the consumer plates, the position of which is controlled by two additional auxiliary valves. Each of the consumer plates includes two further auxiliary valves cooperating with a control piston in such a manner that when one of the consumer ports of the respective consumer plate is connected to the inle…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.