Anti-skid brake pressure control system with common solenoid valve
US4269456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1978 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Oct 5, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/225
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-skid brake pressure control system which includes a first brake pressure supply line communicating a first source of a tandem master cylinder with a first wheel cylinder, a second brake pressure supply line communicating a second source of the tandem master cylinder with a second wheel cylinder, a cut off valve mechanism arranged within the first supply line and normally maintained in a open position, a servo member having a power piston to thereby define first and second chambers, a solenoid valve mechanism actuated in response to a wheel locking condition to thereby create a pressure differential between the first and second chambers and to thereby activate the power piston, a brake pressure reducing member including a pressure reducing piston movable in response to movement of the servo member to reduce an effective volume of a variable bore, and a pressure reducing valve mechanism operated in response to movement of the pressure reducing piston to bring both of the wheel cylinders into communication with the variable volume bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.