Abstract: A pressure-wave supercharger for a combustion engine of a motor vehicle includes a first channel for drawing fresh air, a second channel for discharging compressed fresh air, a third channel for supply of exhaust gas, and a fourth channel for discharging exhaust gas. A hot-gas housing receives exhaust from the third channel for discharge through the fourth channel, and a cold-gas housing receives fresh air from the first channel and discharges compressed fresh air through the second channel. Disposed between the hot-gas housing and the cold-gas housing is a cell rotor housing which has a cell rotor. A guide element is arranged in at least one of the first and third channels to guide a gas flow for accelerating or decelerating the cell rotor.

Abstract: The invention proposes that the shaft-hub connection of a rotatable cell rotor (7) of a gas-dynamic pressure wave machine (6) for charging a combustion engine be composed of individual sheet metal parts having a hub outer body made of a tube, or of a mixture of hub outer bodies (71), and a disk (18) as a cast shaft holder. According to the invention, this is to replace a shaft-hub connection that is a solid casting.

Abstract: A pressure wave supercharger includes a cell rotor which is arranged in the housing and driven by an electric motor. The electric motor includes a rotating member which is connected to the cell rotor, and a fixed member. A bearing assembly is provided to simultaneously support the cell rotor within the housing and the rotating member in relation to the fixed member.

Abstract: A pressure wave supercharger for installation on an internal combustion engine of a motor vehicle includes a rotor casing having an inner surface, and a rotor received in the rotor casing. A coating is applied on the inner surface of the rotor casing for absorbing heat radiation. The rotor casing is surrounded by an insulation jacket.