ÜBERDRUCKERZEUGUNGSVORRICHTUNG

摘要

A device for at least intermittently generating an overpressure in a system S in relation to an ambient pressure U includes a pump P that has a pressure side 20 and an intake side 10, where during the generation of an overpressure, the pressure side 20 is connected to the system S and the intake side 10 is connected to the ambient pressure by means of at least one first valve MV1, in particular a solenoid valve. At least one additional valve (ZV) is provided, which is connected in parallel to the first valve MV1 and can provide an additional cross section for the intake volume flow during the generation of an overpressure.