Unit for controlling a plurality of hydraulic actuators
US5386697A · kind A · utility
8Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Jul 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87169
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Hydraulic actuators are fed by a single flow-rate generator, each being connected to it through a proportional directional valve, the unit including at least one auxiliary valve fed by the flow-rate generator and producing a pressure which is normally equal to a regulation pressure increased by a constant, and in each proportional directional valve an actuating device causes the compensating spool to respond to the pressure produced by the auxiliary valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.