Patent · US Expired

Leak-proof ABS/TCS pump assembly with non-return valve

US5569025A · kind A · utility

5Cited by

4References

7Claims

0Family size

Inventors

Klaus Bendel · Hofheim, DE
Jurgen Uhlmer · Eschenburg, DE
Armin Eiser · Rockenberg, DE

Key dates

Filing date	Nov 3, 1994
Grant date	Oct 29, 1996
Priority date	—
Expiry date	Nov 3, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K15/148
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pump assembly for a controlled brake system diverts pressure fluid entrained by the pistons which collects in the space around the eccentric to prevent it from becoming pressurized by the moving pistons. A non-return valve inserted into an exit duct is dimensioned such that it opens when exposed to the pressure of the collected pressure fluid, and prevents the ingress of dirt and moisture in the opposite direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.