Self-energizing disc brakes
US4862998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | May 19, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/36
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a self-energizing disc brake of the spreading type the actuator mechanism incorporates a restrictor in the form of a circumferentially extending discontinuous oil-seal which co-operates with radial faces on the two pressure plates. A secondary, or elevated, reservoir for liquid is therefore defined between said pressure plates by said oil-seal. Liquid can escape from this reservoir in order to enhance the cooling of the braking surfaces, defined by engagement of rotatable friction discs with end faces of a housing, pressure plates and a planar non-rotatable disc. In the brake shown in FIG. 6 two annular members act as seals on the ends of the outermost friction discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.