Hydraulic brake booster
US7302796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/145
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An hydraulic brake booster for an automobile hydraulic system comprising of a boost cylinder, a boost piston and a boost chamber defined by a boost piston working in a bore in a body and being adapted to apply an output force to an output rod in response to a pressure applied to a boost chamber under a control valve, in turn responsive to an input force from input rod, wherein the input rod move in a forward operating direction up to a prescribed point so as to prevent fluid from a radial high pressure supply port from entering the boost chamber when the booster is in an inoperative position, any added movement of the input rod in a forward operating direction lifts the boost piston ball and uncovers the supply port so as to allow pressurized fluid into the boost chamber from the accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.