Multiple disk brake control
US4542944A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Apr 12, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/008
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A brake control arrangement for use with a multiple disk brake system having a plurality of disk brake actuators which exert a braking force in relation to the fluid pressure presented to a service braking portion contained therein. A handle valve is operable over a range of travel for delivering a braking fluid pressure to be directed to a first input of one of a purality of shuttle valves. This braking fluid pressure, however, is first directed through one of a plurality of flow paths selected by a selector valve arrangement. The selector valve arrangement can be sequenced to direct the initial braking fluid pressure through a different one of the plurality of flow paths upon receiving a sequencing count signal transmitted from a counter valve arrangement. A pilot operated relay valve has a pilot portion which receives the braking fluid pressure and opens the relay valve when the braking fluid pressure reaches a predetermined value. The fluid pressure transmitted through the relay valve is proportional to the braking fluid pressure and is directed to a second input of the plurality of shuttle valves. The shuttle valve outputs are connected to the service braking portions of the d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.