Hydraulic booster and hydraulic brake system using the same
US8534773B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/686
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic brake system is proposed which includes a hydraulic booster for boosting brake operation, and a circulation type pressure control unit. The hydraulic brake system further includes a hydraulic booster including an auxiliary hydraulic pressure source, a pressure regulator for adjusting the hydraulic pressure supplied therefrom to a value corresponding to an operating amount of a brake operating member and introducing the thus adjusted hydraulic pressure into a boost chamber, and a boost piston for actuating a master piston with a force boosted by an assisting force generated by the hydraulic pressure introduced into the boost chamber. The hydraulic booster further includes a hydraulic line bypassing the pressure regulator and extending from the boost chamber to the auxiliary hydraulic pressure, and a check valve provided in the hydraulic line and configured to allow only a discharge of hydraulic pressure from the boost chamber into the auxiliary hydraulic pressure source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.