Penetration master cylinder with reduced backlash and application thereof
US7040093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2002 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/232
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention relates to a master cylinder of the so-called “penetration” type, in which a cup (3), which is fitted inside a groove (11) of the master cylinder, bears on the wall (20) of a piston (2) in a sealing manner, and in which such wall (20) is provided with main resupply ports (51).According to the invention, the wall (20) of the piston (2) also comprises secondary resupply ports (52) having a smaller size than that of the main resupply ports (51) and disposed farther from the bottom part (33) of the cup (3), and achieving an outstanding static resupply of the master cylinder with brake fluid, with a reduced dynamic dead stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.