Vacuum supply system in a motor vehicle
US4953447A · kind A · utility
7Cited by
14References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Mar 1, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7836
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vacuum supply system for a brake power assist unit of a motor vehicle and at least one additional vacuum consuming device, is achieved by a parallel arrangement of two pipes leading from a vacuum generating device one to the brake power assist unit and one to the additional consuming device. Both pipes are equipped with flow control devices one of which is blockable by means of a check valve with an increased restoring or closing force for securing a vacuum supply priority for the brake power assist unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.