Master cylinder for a vehicle
US8646268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | May 25, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/236
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a master cylinder for a vehicle. The master cylinder includes a housing, a piston, inlet ports and a seal. The housing has therein a liquid pressure chamber to contain oil. The piston reciprocates in the liquid pressure chamber to control the pressure in the liquid pressure chamber. A front end of the piston has a stepped structure. The inlet ports are provided in the housing so that oil is supplied into the liquid pressure chamber through the inlet ports. The seal is seated into a seating depression which is formed in the inner surface of the housing. The seal opens or closes a flow path of the oil depending on whether the seal is brought into contact with the piston. The oil flows into the liquid pressure chamber along the stepped outer surface of the piston through a space defined between the piston and the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.