Brake system
US9061668B2 · kind B2 · utility
2Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jun 9, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/686
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic system for a brake system of a machine includes a relay valve coupled to a brake cylinder, a pump, and a tank. The relay valve includes a first position to allow supply of fluid from the pump to the brake cylinder, and a second position to allow discharge of fluid from the brake cylinder to the tank. Further, the relay valve includes a third position to restrictively allow discharge of fluid from the brake cylinder to the tank via a flow limiting orifice. A pilot valve coupled to the relay valve and configured to modulate the relay valve between the first position, the second position and the third position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.