Motor powered e.g. by compressed air with helicoid ramps for alternating piston blade movement relative to rotary plate on shaft

摘要

The motor has a shaft (M) which is turned by a plate (P) with two diametrically-opposed blades (A, B) that act as pistons as the move between alternating positions produced by two helicoid guide ramps (R, R') fitted with facing shaped surfaces. The plate divides the space between the ramps into two chambers inside a cylindrical rotor (C).