Hydraulic control valve for controlling pressure drop across motors
US10641298B2 · kind B2 · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Nov 28, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K17/0406
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic control valve maintains the pressure at a control port at a desired percentage of the pressure at two other ports as the pressure at the two other ports varies. Upon the pressure at the control port reaching a predetermined pressure setting, a fourth port will open to maintain the control port at a second desired percentage of the two other ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.