Hydraulic circuit and control system therefor
US9422951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | May 11, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0034
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic circuit and a hydraulic control system for preventing fluid leakage and power loss resulting from jamming of contaminants. A first circuit section has an accumulator for storing hydraulic pressure, and a control valve for controlling a passage for delivering fluid from the accumulator to an actuator. Fluid discharged from an oil pump is delivered continuously to a second circuit section. A first filter is disposed on a passage for delivering the fluid from the oil pump to the accumulator for the purpose of removing contaminants finer than those in the fluid to be delivered to the second circuit section from the fluid to be delivered to the accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.