Abstract: Vane type rotary combustion engine in combination with a compressor apparatus for supplying a charge of air or an air-fuel mixture to the engine. The engine and compressor are drivingly connected to each other and include a conduit connecting the compressed charge outlet of the compressor to the intake port of the engine so that a compressed charge may be led into the engine. The engine includes a rotary-vane assembly wherein a series of rotatable chambers are provided therein, with a rotatablecombustion chamber of relatively low volume rotating past the intake port. A timed valve closes the intake port after which ignition of the charge in the combustion chamber takes place and effects a power stroke against a rotary-slide vane. A continuous succession of power strokes are effected by successive rotary combustion chambers formed by rotary-slide vanes.