Hydraulic cylinder supply system
US10760594B2 · kind B2 · utility
5Cited by
0References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | May 14, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/76
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic circuit provides relief pressure operation for a lift cylinder and/or top cylinder in an implement linkage of a utility vehicle. A relief pressure control valve has a first position providing a connection between a variable displacement pump and one side of the hydraulic cylinder, and a second position providing a connection between that side of the hydraulic cylinder and a drain or reservoir. A connection carries an indication of the pressure in the hydraulic cylinder chamber as a load-sensing signal to control adjustment of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.