PISTON CHAMBER COMBINATION <I>VANDERBLOM MOTOR</I>

摘要

A piston chamber combination comprising a chamber (186) which is bounded by an inner chamber wall (185) and comprising a piston inside said chamber to be engagingly movable relative to said chamber wall at least between a first longitudinal position (208) and a second longitudinal position (208 ) of the chamber said chamber having cross sections of different cross sectional areas and different circumferential lengths at the first and second longitudinal positions and at least substantially continuously different cross sectional areas said piston comprising a container which is elastically deformable. The piston is produced to have a production size of the container in the stress free and undeformed state thereof. This is accomplished by the combination comprising means for introducing fluid from a position outside (210) said container into said container thereby enabling pressurization of said container and thereby expanding said container a smooth surface of the wall of the actuator piston at least on and continuously until nearby its contact area with the wall of the chamber thereby displacing said container from a second and to a first longitudinal position of the chamber.