Trail locomotive brake control
US7240970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2005 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/665
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake controller for a locomotive includes a train brake pipe, a locomotive brake pipe, a brake cylinder, a control valve and a relay valve. The first control input of the relay valve is selectively connected to one of the output of the control valve and the locomotive brake pipe; and the second control input of the relay valve is selectively connected to the locomotive brake pipe when the control valve output is a release signal. A first electro-pneumatic valve, when activated, causes the control valve to be a release signal. An electronic controller is connected to a first pressure transducer for the locomotive brake pipe, a lead/trail mode switch and the first electro-pneumatic valve; and activates the electro-pneumatic valve for brake release pressures in the locomotive brake pipe when the mode switch is in the trail mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.