RELAY VALVE FOR A COMPRESSED AIR SYSTEM

A relay valve (1′) for a compressed-air system of a vehicle has a working pressure inlet, a working pressure outlet, a venting outlet and a controllable relay piston (19). The relay piston (19) is axially movably guided and, at one axial end, has an annular, radially inner valve seat (20). A sealing...

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Bibliographic Details
Main Authors RIEDIGER-JANISCH, Karl-Heinz, MARTINI, Gerhard, HÖLSCHER, Reiner
Format Patent
LanguageEnglish
French
German
Published 26.05.2021
Subjects
ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL
BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
PERFORMING OPERATIONS
PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES
TRANSPORTING
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF
VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
VEHICLES IN GENERAL
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Summary:A relay valve (1′) for a compressed-air system of a vehicle has a working pressure inlet, a working pressure outlet, a venting outlet and a controllable relay piston (19). The relay piston (19) is axially movably guided and, at one axial end, has an annular, radially inner valve seat (20). A sealing piston (9) is axially movably guided coaxially with respect to the relay piston (19). The sealing piston (9) is pushed by a compression spring (8) toward the relay piston (19) and an annular, radially outer valve seat (25), which is a part of a seat ring (24) fastened in an annular collar (23) of the housing bottom part (2). The seat ring (24) is a deep-drawn component shaped as a cylindrical pot of a metallic material. The radially outer valve seat (25) is an axially protruding annular web with a gable-shaped axial cross section.
Bibliography:Application Number: EP20190714565