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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Bibliographische Detailangaben
Hauptverfasser:	RIEDIGER-JANISCH, Karl-Heinz, MARTINI, Gerhard, HÖLSCHER, Reiner
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	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.