Load-sensing multi-way valve with variable differential pressure
US11131328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a load-sensing multi-way valve with a variable differential pressure, where each valve group uses a new element: an electro-hydraulic pressure compensation valve, so as to implement continuous real-time adjustment and control of compensated differential pressure and real-time position feedback and monitoring of a compensation valve trim, and overcome a flow mismatch problem of a conventional LS system in a flow saturation working condition and problems of a fixed shunting proportion of an LUDV system and poor operation coordination of actuators. The load-sensing multi-way valve with a variable differential pressure disclosed in the present invention has advantages such as strong working condition applicability, high flow distribution accuracy, and strong technicality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.