Brake system
US6244049A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/573
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A counter-force mechanism (37), which produces a counter force when a brake booster is operated, is made up of an input-side member (38) slidably disposed within a valve body (3), a second constant-pressure chamber (39) formed on the rear side of the input-side member and into which a pressure is introduced from a constant pressure chamber (A), and a second constant-pressure chamber (39) formed on the front side of the input-side member and into which a pressure is introduced from a variable pressure chamber (B). The counter force from the counter-force mechanism (37) is reduced by an orifice passage (43) as a counter-force reducing means in rapid operation of the brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.