Hydraulic load control valve device
US8800426B2 · kind B2 · utility
3Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 2008 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/88
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic load control valve (10) accommodated between a hand valve (H) and a hydraulic engine (D) has got at least one proportional load control valve (E), controlled by the pump pressure independent of the flow of hydraulic fluid to the engine. The flow to the engine (D) flows via a non-return valve (12), that is prestressed to open at a pump pressure above the upper limit before a given pressure interval, within which the load control valve (E) is adjusted between completely closed and completely open position of the pump pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.