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).