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AssigneeWABCO India Limited
InventorsGanesamoorthy Arumugham, Vinoth Kumar Rangaraj, Narayanan Sreenivasan, Selvamani Sundaramahalingam
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Pneumatic control valve of a vehicle air brake system, having at least one first valve system which is arranged in a housing upper part with a first valve piston which can be actuated via an elastomer spring element, and having a second valve system which is arranged in a housing lower part with a coaxially arranged second valve piston which can be actuated by the first valve system and with a second annular plate valve. The elastomer spring element and the first valve piston are configured in one piece as a composite component. In the region of a radial sealing lip of the spring element, the material of the elastomer spring element engages radially and axially in a positively locking manner around a radially outer section of the first valve piston.
A pneumatic control valve in the form of a dual-circuit brake transducer in a compressed-air brake system of a vehicle for correcting a brake pressure which corresponds to a desired braking action, having at least one first valve system which is arranged in a housing upper part with a first valve piston which can be actuated via an elastomer spring element manually or by means of an actuator and with a first annular plate valve which interacts therewith, and having a second valve system which is arranged in a housing lower part with a coaxially arranged second valve piston which can be actuated pneumatically and/or mechanically by the first valve system and with a second annular plate valve which interacts therewith, wherein, in the case of the first valve system, the elastomer spring element and the first valve piston are configured in one piece as a composite component,
Dependencies are inferred from the claim text.