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. 13, 2006
Filed:
Apr. 26, 2002
Friedbert Roether, Cleebronn, DE;
Joachim Delfs, Hemmingen, DE;
Siegmund Deja, Freiberg, DE;
Eberhard Schaffert, Leonberg, DE;
Günther Strobel, Ditzingen, DE;
Hans Haecker, Leonberg, DE;
Martin Judith, Bietigheim-Bissingen, DE;
Friedbert Roether, Cleebronn, DE;
Joachim Delfs, Hemmingen, DE;
Siegmund Deja, Freiberg, DE;
Eberhard Schaffert, Leonberg, DE;
Günther Strobel, Ditzingen, DE;
Hans Haecker, Leonberg, DE;
Martin Judith, Bietigheim-Bissingen, DE;
Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH, Munich, DE;
Abstract
Electropneumatic control valve for a pneumatic brake system of a vehicle having a relay valve housing in which an axially adjustable control piston is arranged for actuating a valve seat arrangement which switches the compressed-air flow between at least one exterior brake line connection, a supply pressure connection and a bleeder connection. The control piston is axially guided by means of a coaxial guiding arrangement. The guiding arrangement comprises a separate guiding sleeve which is stationarily fastened to the pilot valve housing and which is provided with an upper guiding section which, for the axial guidance, corresponds with a passage bore in the control piston, and which, in addition, has a lower tube section of a smaller outside diameter adjoining the upper guiding section in order to guide the outgoing air flowing through an integrated axial bleeder duct directly to the bleeder connection.