The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1992
Filed:
Apr. 30, 1990
Johannes Moller, Hemmingen, DE;
WABCO Westinghouse Fahrzeugbremsen GmbH, Hanover, DE;
Abstract
A control valve device is provided for a pneumatically-operated vehicle brake system equipped with an antilocking device. The control valve has a controlled inlet valve and a controlled outlet valve. A pressure medium outlet chamber may be connected to a pressure medium inlet chamber by the inlet valve and to atmosphere by the outlet valve. The pressure medium inlet chamber is divided into a first sectional chamber connected to the inlet valve and a second sectional chamber connected to the pressure medium inlet. The first sectional chamber and the second sectional chamber can be connected through an additional valve device acting as a check valve which can be moved into an open position in a direction of the first sectional chamber. In this manner, it becomes possible to achieve a pressure reduction by not directing the reflux of the pressure medium from the pressure medium outlet chamber through the pressure medium inlet chamber, but instead through the outlet valve directly to atmosphere. This leads to an accelerated pressure reduction in the pressure medium outlet chamber and thus in the consumer.