Brake system for a motor vehicle
US5915504A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/64
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The brake system for a motor vehicle has an electromechanical wheel brake actuator mounted on each brake caliper of each wheel. The actuator is controlled by the brake pedal through electric lines and it has a brake piston disposed in a cylindrical bore formed therein. A spindle drive moves the brake piston axially and presses to piston against the brake lining, which effects the braking action on the respective wheel. A piston sealing ring limits the axial movement of the brake piston within the cylindrical bore. A transformer part connects to the brake piston via a non-self-locking pair of threads. A main spring in the brake actuator compensates for brake lining wear. The main spring, upon a return stroke of the spindle drive into a position of repose, moves the transformer part axially out of the brake piston while the brake piston is firmly held by the piston sealing ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.