Abstract: An integrated rotary expansible chamber device comprises a compressor and a pneumatic motor housed within a single engine block. The pneumatic motor includes a cylindrical casing having a pressurized gas inlet, an exhaust outlet, and an off-center output shaft with a rotor mounted on it. The rotor have spring-loaded radially sliding vanes. The vanes sealed with the casing wall by pivoted shoes. The pneumatic motor powers the compressor, supplying compressed air to a combustion chamber, which produces pressurized combustion gases to drive the pneumatic motor. The device incorporates a recess for gradual (extended) exhaust gas release, air and fuel storage tanks for rapid starting without a starter motor. In another embodiment, the pneumatic motor consists of cylindrical casing with centrally meshed radial vanes mounted on coaxial shafts, driven by inverted crank slider mechanism in the adjacent drive box. This embodiment feature labyrinth sealing for oil-free operation and versatile functionality.

Abstract: This invention describes an internal continuous combustion rotary engine. It consists of a compressor with air tank storage, fuel pump with fuel pressure tank, combustion chamber with air-fuel feed rate control and spark plug, pneumatic rotary vane motor with output shaft, and mechanical means to drive the compressor from the motor. As the stored pressurized fuel and air fed into the combustion chamber with a spark to initiate combustion, which will generate pressurized combustion gases. Pressurized combustion gases will drive the pneumatic rotary motor, which will then drive the compressor and fuel pump to maintain adequate supply of pressurized air and fuel for continuous operation, and produce mechanical work. The pneumatic motor is a positive displacement, fully sealed, radial vane rotary type motor, with simple reliable inverted crank slider mechanism to drive the vanes in cyclic angular speed ratio in one direction.