Brake cylinder for rail vehicles
US5038896A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Apr 12, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D55/2245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a brake cylinder (1) for vehicle brake systems a service and a parking brake are provided within a common housing (25). The parking brake (41) acts on a brake actuating member (37) of the brake cylinder (1) against spring force via a parking brake piston (57) which can be loaded preferably by a pressure medium, and can be locked in the parking brake position by a locking mechanism (43) that acts mechanically, i.e., pressure independently, and that is applied automatically subject to spring force when the parking brake is actuated. The locking mechanism (43) is released preferably by loading a locking piston (59) with a pressure medium in such a manner that the parking brake piston can be returned automatically subject to spring force into its release position and is mechanically maintained in this position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.