Hydraulic powered park brake system
US9067576B2 · kind B2 · utility
0Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Nov 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic circuit for a motor vehicle supports operation of a power steering gear and a power assisted park brake unit incorporating a spring actuated hydraulic release (SAHR) chamber. The hydraulic circuit includes a pump with the power steering gear being connected to receive hydraulic fluid under pressure from the pump. Hydraulic fluid from the pump is delivered to first and second valves, the first or release control valve being connected to the SAHR chamber and the second or recirculation valve being coupled to return hydraulic fluid to a pump inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.