Valve arrangement having individual pressure scale and load-lowering valve
US8516944B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2008 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Apr 16, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/5059
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention discloses a valve arrangement for supplying pressure medium to a hydraulic load (2) having a directional valve (8), which has an inflow measuring diaphragm (10, 12) and a directional part (14, 16) flowing in the flow direction. The directional valve is associated with an individual pressure scale (18). In a return from the load, a load-lowering valve (44, 46) is provided, to which a pilot pressure is applied in the opening direction. According to the invention, said pilot pressure is tapped in channel between the pressure scale and the directional part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.