The present invention relates to a control valve assembly (20) for a parking brake system (1) for motor vehicles, comprising a housing (60); comprising a cylinder chamber (62) and a housing chamber (64), a control piston (66) guided in the cylinder chamber (62) of the housing (60), a spring (21) which spring loads the control piston (66); comprising a first port (20a) and a second port (20b), which are connected to the housing chamber (64), and a third port (20c), which is connected to the cylinder chamber (62); wherein the control piston (66) has a first piston ring (68) and a second piston ring (70); wherein the first piston ring (68) is guided in the cylinder chamber (62) and wherein the second piston ring (70) is located outside the cylinder chamber (62) in the housing chamber (64); wherein in a first control position the second piston ring (70) seals the cylinder chamber (62) with respect to the housing chamber (64) and in at least one second control position the cylinder chamber (62) and the housing chamber (64) are interconnected; wherein in the first control position the pneumatically acting surfaces of the first piston ring (68) and the second piston ring (70) are substantially identical. The present invention also relates to a parking brake system (1) for motor vehicles.
STEUERVENTILEINRICHTUNG FÜR EINE PARKBREMSEINRICHTUNG FÜR KRAFTFAHRZEUGE SOWIE PARKBREMSEINRICHTUNG FÜR KRAFTFAHRZEUGE
CONTROL VALVE ASSEMBLY FOR A PARKING BRAKE SYSTEM FOR MOTOR VEHICLES AND PARKING BRAKE SYSTEM FOR MOTOR VEHICLES
DISPOSITIF DE SOUPAPE DE COMMANDE POUR DISPOSITIF DE FREIN DE STATIONNEMENT POUR VÉHICULES À MOTEUR ET DISPOSITIF DE FREIN DE STATIONNEMENT POUR VÉHICULES À MOTEUR
2018-02-28
Patent
Electronic Resource
German
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
European Patent Office | 2016
|European Patent Office | 2016
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