Abstract: A rotary ejector enhanced wave rotor pulsed detonation (WRPDE) engine and method are provided. The rotary-ejector-WRPDE includes a housing, one or more inlet ports in the housing, and a rotor mounted within the housing. The rotor includes a plurality of shrouded forward combustion passages in which detonative combustion occurs. Each forward combustion passage has an inlet end for communication with the inlet port. The rotor also includes a plurality of rear combustion passages which are in gaseous communication with the forward combustion passages. The rotor further includes a plurality of transitional combustion passages which join the forward combustion passages to the rear combustion passages and communicate with a source of bypass gas to provide a rotary ejector.

Abstract: A rotary ejector enhanced wave rotor pulsed detonation (WRPDE) engine and method are provided. The rotary-ejector-WRPDE includes a housing, one or more inlet ports in the housing, and a rotor mounted within the housing. The rotor includes a plurality of shrouded forward combustion passages in which detonative combustion occurs. Each forward combustion passage has an inlet end for communication with the inlet port. The rotor also includes a plurality of rear combustion passages which are in gaseous communication with the forward combustion passages. The rotor further includes a plurality of transitional combustion passages which join the forward combustion passages to the rear combustion passages and communicate with a source of bypass gas to provide a rotary ejector.

Abstract: A multi-channel combustion device is provided. The device includes an inlet port, at least one radially partitioned inlet zone within the inlet port, and a plurality of circumferentially spaced combustion chambers in which deflagrative or detonative combustion occurs. The inlet port may have a plurality of separate, circumferentially partitioned inlet zones for supplying fuel and air mixtures to the inlet end of the combustion chambers. Each inlet zone is capable of introducing a different combustible mixture sequentially to a given combustion chamber as the chamber communicates with the inlet zones. The inlet of at least one combustion chamber is radially partitioned. At least one inlet zone is radially partitioned to permit radial stratification within the combustion chambers. The multi-channel combustion device may be a combustion wave rotor or a valved combustor.

Abstract: A wave rotor detonation engine and method are provided. The wave rotor detonation engine includes a rotor rotatably mounted within a housing, an inlet port, an exhaust port, and an igniter for igniting the gases within the rotor. The rotor includes a plurality of circumferentially spaced longitudinally extending combustion chambers in which detonative combustion occurs. The inlet port has a plurality of separate inlet zones for supplying fuel and air mixtures to the inlet end of the rotor. The inlet zones are circumferentially spaced about the perimeter of the rotor so that the combustion chambers interact with these inlet zones sequentially. Each inlet zone is capable of introducing a different combustible mixture sequentially to a given combustion chamber as it rotates past the inlet zones. This results in the stratification of differing concentrations of combustible material within the combustion chambers which is particularly suited to create detonative combustion within the wave rotor.

Abstract: A multi-channel combustion device is provided. The device includes an inlet port, at least one radially partitioned inlet zone within the inlet port, and a plurality of circumferentially spaced combustion chambers in which deflagrative or detonative combustion occurs. The inlet port may have a plurality of separate, circumferentially partitioned inlet zones for supplying fuel and air mixtures to the inlet end of the combustion chambers. Each inlet zone is capable of introducing a different combustible mixture sequentially to a given combustion chamber as the chamber communicates with the inlet zones. The inlet of at least one combustion chamber is radially partitioned. At least one inlet zone is radially partitioned to permit radial stratification within the combustion chambers. The multi-channel combustion device may be a combustion wave rotor or a valved combustor.