Brake booster utilizing a pump of a power steering device
US3979912A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1975 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Apr 30, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/162
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake booster utilizing a pump of a power steering device includes a source of fluid pressure, a cylinder, a power piston slidably disposed within the cylinder, a manual piston also slidably disposed within the cylinder, an actuating chamber formed between the power piston and the manual piston and controlled by the manual piston, a valve member slidably disposed within the power piston and provided with a first valve cooperative with the power piston and a second valve cooperative with the manual piston, and a flow divider valve interposed between the pump and the power steering device for dividing the hydraulic fluid flow from the pump into the actuating chamber and the power steering device so as to thereby control the hydraulic fluid within the actuating chamber, in accordance with the actuation of the manual piston, by means of the first and second valves of the valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.