Electro-pneumatic freight brake control system
US5669674A · kind A · utility
7Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1996 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | May 29, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/228
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electro-pneumatic brake control system for a railroad car including application and release solenoid valves having a fail-safe configuration in which full emergency brake pressure is delivered in the event of a power loss due to a train break-in-two for example. The present invention discloses a pressure limiting valve for the purpose of limiting the maximum pressure capable of being delivered in accordance with the existing car load weight sensed by an electric load sensor at the time a bower loss is experienced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.