Blend back proportioning brake control apparatus
US4068900A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Aug 5, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dual hydraulic brake system incorporating a dual master cylinder for separately pressurizing the front and rear brakes of a vehicle. A device for varying the proportion of brake pressure applied to the front and rear brakes of a vehicle is positioned between the master cylinder and the front and rear brakes. The device includes a differential area piston for decreasing the proportion of brake pressure delivered to the rear brakes above a first preselected inlet pressure. Positioned within the differential area piston is a second valve assembly which is actuated in response to attainment of a second preselected brake pressure and which blends back the pressure in the rear brake system until it attains the pressure in the front brake system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.