Abstract: A pressure wave supercharger includes a fixed cellular member having an array of parallel longitudinal cells. A segmented impeller fan at a first open end of the cells alternates the cells from being in fluid communication with a supply of fresh air and being in communication with an intake manifold of an internal combustion engine. At the opposite open end of the cells, a segmented turbine fan alternates the cells from being in communication with a supply of exhaust gases and being in communication with a path to the atmosphere. The walls of the cells are coated with a catalytic material, so that the cellular member acts as a catalytic converter substrate. The collision of the exhaust gas with fresh air within the cells and the sonic and positive-pressure pulses compress the fresh air while reversing its direction of flow, whereafter the air is channeled to the engine. The exhaust gases are likewise reversed in direction, expanded, reduced in noise and toxins, and then released into the atmosphere.

Abstract: A pressure wave supercharger utilizes a rotor having closely spaced conduits in a rectangular array whose inside surfaces are provided with a catalyst for exothermic oxidation of incompletely burned exhaust gases. The size, geometry and length of the conduits are arranged to achieve maximum energy transfer of the sonic velocity exhaust gases and exothermic expansion of those gases in supercharging incoming air to the intake manifold. The spent gases are discharged to the atmosphere with a minimum of sonic energy.