Abstract: A device serves for the repeated generation of explosions, in particular for the drive of an aircraft. It comprises: ?a combustion chamber (21), ?at least one feed line for feeding a flowable, explosive material or components which form an explosive material upon mixing to the combustion chamber (21); ?a discharge device for the targeted discharge of a gas pressure which is generated by way of ignition of the explosive material in the combustion chamber (21), ?a movable nozzle regulating element (26) for the partial or complete closure of the discharge device, ?an actuating element (25) which is configured to open the discharge device further after opening of the discharge device and during an outflow of explosion gases by way of the discharge device. Here, the discharge device has a plurality of part nozzles (40) for the discharge of the gas pressure, and a position of the part nozzles (40) can be set by way of the actuating element (25).

Abstract: A pump for pumping a medium from a suction side to a pressure side includes a filter arrangement. The filter arrangement includes an inflow path, a first outflow path, and a second outflow path. A hydrophobic membrane filter is arranged between the inflow path and the first outflow path. A hydrophilic membrane filter is arranged between the inflow path and the second outflow path. At least one section of the hydrophobic membrane filter and one section of the hydrophilic membrane filter are located opposite each other at a distance of no more than 1 mm so that a gas bubble that moves along with a medium flowing in the inflow path comes into contact with the hydrophobic membrane filter during the movement. The first and second outflow paths of the filter arrangement are connected to the suction side of the pump.

Abstract: A pump for pumping a medium from a suction side to a pressure side includes a filter arrangement. The filter arrangement includes an inflow path, a first outflow path, and a second outflow path. A hydrophobic membrane filter is arranged between the inflow path and the first outflow path. A hydrophilic membrane filter is arranged between the inflow path and the second outflow path. At least one section of the hydrophobic membrane filter and one section of the hydrophilic membrane filter are located opposite each other at a distance of no more than 1 mm so that a gas bubble that moves along with a medium flowing in the inflow path comes into contact with the hydrophobic membrane filter during the movement. The first and second outflow paths of the filter arrangement are connected to the suction side of the pump.