Patent · US Expired

Solenoid valve with a check valve

US6382250B1 · kind B1 · utility

10Cited by

5References

4Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Peggy Gruschwitz · Stuttgart, DE
Martin Oehler · Leingarten, DE
Heike Bauer · Stuttgart, DE
Rolf Nicodemus · Bietigheim-Bissingen, DE
Ralf Schindler · Leonberg, DE

Key dates

Filing date	Nov 20, 2000
Grant date	May 7, 2002
Priority date	—
Expiry date	Nov 20, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87563
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A solenoid valve useful in a slip-controlled hydraulic brake system of a motor vehicle, and which has a seat valve disposed between a pressure fluid inlet and a pressure fluid outlet and in the bypass to this seat valve, has a check valve with a hollow conical valve seat and a closing body, which has a section that is embodied as complementary to the hollow conical valve seat. A rubber-elastic sealing ring is accommodated with the greater portion of its cross section in the circumference of the section and in the closed position of the check valve, this sealing ring can compensate for dimensional deviations of the valve seat at low pressures.

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