Hydraulic actuator for a motor vehicle anti-skid braking system
US4181373A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Aug 30, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4225
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic actuator for a motor vehicle anti-skid braking system, in which the static and dynamic parts of the hydraulic circuit are separated, the actuator having a solenoid valve operated by electrical signals generated by sensors when associated wheels of the vehicle reach an incipient skid state; upon operation of the solenoid valve during braking, pressure to one side of a balanced piston is removed so that it moves to close a valve which cuts off braking pressure to the brakes. A throttle passage allows pressure build up to take place until equilibrium is established across said balanced piston allowing braking to recommence after a time delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.