Servo-motor for power-assisted braking
US4499812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1983 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Oct 7, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/5675
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The two chambers (8, 9) on either side of the movable wall structure forming a piston (7) are each sealingly delimited internally by a first and a second flexible impervious walls (23) which connect the central hub part (11) incorporating the control valve (12) to the central annular end zones (22 ; 24) of the corresponding end walls (2 ; 3) of the housing, the central zones delimited peripherally by said flexible walls being interconnected by at least a passage (39) traversing the central hub part, thus providing in the center of the housing a neutral cylindrical zone (32). In this neutral zone (32) there extend force-transmitting elements (38) which have at their ends fastening means (40), for example with assembly flanges (41, 42), and which slidingly pass through said passages (39) formed in the body of the central hub part (11), thus in no way interfering with the control and fluid actuation system of the servo-motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.