Internal combustion rotary piston engine

摘要

An internal combustion rotary piston engine (10) comprises a cylinder (12) housing a power piston (18) and a second piston (38) which is coupled to the power piston (18). A shaft (16) is coaxially supported in the cylinder (12) and is able to rotate along a longitudinal axis (14) that is fixed from translational motion along the axis (14). The pistons (18) and (20) are mounted on the shaft (16) in a manner where they can reciprocate along a shaft (16) and rotate with a shaft (16). A track and bearing system (20) couples the second piston (38) to the cylinder (12) and is configured to cause the second piston (38) and thus the piston (18) and shaft (16) to rotate as the piston (18) reciprocates along the shaft (16). The track (116) of the track and bearing system is formed with a radius which is greater than the radius of the power piston (18). The torque produced by the engine (10) can be varied by varying the radius of the track (116).