Hydraulic booster vented input rod with poppet
US8763392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/165
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic brake booster system. The hydraulic brake booster system includes a primary piston axially moveable within a bore of a cylinder, a booster chamber located rearwardly of the primary piston within the bore, an input rod extending within the booster chamber, a booster vent path in selective fluid communication with the booster chamber, and a seal member located between the forward face and the primary piston, the seal member in a fixed relationship with the input rod and configured to (i) seal the booster vent path from the booster chamber when the input rod is in a first position, and (ii) not seal the booster vent path from the booster chamber when the input rod is moved rearwardly within the booster chamber to a second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.