Fluid pressure brake control portion
US4714297A · kind A · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | Mar 27, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fluid pressure control portion for a fluid brake motor is inserted in a fluid pressure control passage between a triple valve and a brake motor for a particular car truck. This portion comprises a proportioning valve connected to an inshot valve through a pipe bracket to proportionally reduce brake pressure on a particular brake motor, after inshot at the same pressure as other brake motors of the same vehicle to adjust braking in accordance with lighter loading of end trucks for articulated freight cars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.