Pump assembly for a slip-controlled hydraulic brake system for a vehicle
US6389955B1 · kind B1 · utility
10Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Nov 3, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pump assembly having a piston pump, which is driven by an eccentric element. To prevent leakage brake fluid from reaching an eccentric element chamber, a groove surrounds the pump piston in the pump housing and a seal and a porous metal sintered ring is inserted into the groove. A drain which extends obliquely downwardly from the groove drains leakage fluid from the sintered ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.