Control system for automatic parking brake of rail vehicle
US10336306B2 · kind B2 · utility
0Cited by
18References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/7052
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control valve for an automatic parking brake having an inlet for coupling to a source a brake pipe pressure, an outlet for coupling to a control inlet of the automatic parking brake and a pilot for coupling to the source of brake pipe pressure. The control valve is moveable between a first position where the inlet is in communication with the outlet and a second position where the inlet and the outlet are isolated from each other in response to a predetermined amount of brake pipe pressure at the pilot. The control valve includes a spring biasing the control valve into the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.