Patent ID: 7100749

Claim:
An operating material supply device for a hydrodynamic component, the device comprising: a housing having an interior; an operating material reservoir arranged in the housing, the operating material reservoir including an operating material sump; a sealing arrangement configured to seal the operating material sump in a pressure-tight manner with respect to at least one of surroundings and the interior of the housing, the sealing arrangement includes a valve seat, at least one control valve having at least one first valve element to interact with the valve seat, a first actuating device coupled to the control valve to actuate the first valve element, a pressure medium connection coupled to the first actuating device and a movable piston element coupled to the first valve element, the valve seat forming the opening; a charging arrangement assigned to the operating material sump to charge the operating material sump with an influencing pressure, the charging arrangement being functionally and structurally coupled to the sealing arrangement, the charging arrangement and the sealing arrangement being at least partially combined into a single constructional unit, the charging arrangement includes a valve device having at least one second valve element and a second actuating device configured to charge the valve device to connect the operating material sump to the pressure medium connection, the pressure medium connection being connected to at least one of a pressure medium source and an atmosphere; and at least one filling line to connect the operating material sump to the hydrodynamic component.