A PNEUMATICALLY OPERATED ENGINE FOR TOYS

摘要

The present invention relates to a pneumatically operated engine which is powered by the pressure of compressed gas. The engine comprises a cylinder (2) that is served with the compressed air from a source of compressed air; a piston (4) actuated in said cylinder by said compressed air; a piston rod (6) which reciprocally moves together with said piston; a valve rod (8) which moves in the axial directions to open and close a feed port (20) communicating said source of compressed air with said cylinder and to open and close an exhaust port (22) communicating said cylinder with the open air; and a valve rod-moving mechanism (10) which is interlocked with said piston rod to move said valve rod in the axial directions.