Patent ID: 6352418
Filing Date: 2002-03-05
Classification: F04C

Abstract:
A displacement type fluid machine in which a displacer and a cylinder are disposed between end plates, one space is formed by the inside wall face of said cylinder and the outside wall face of said displacer when the center of said cylinder and the center of said displacer are aligned with each other, and a plurality of working chambers are formed when the positional relationship between said displacer and said cylinder is formed so as to be an orbiting position, wherein there is provided driving means for effecting orbital motion of said displacer, in which the orbiting radius of the orbital motion of said displacer changes along the shape of a movement line contact portion of the inside wall face of said cylinder and the outside wall face of said displacer at the time of actual operation, said driving means directing in a predetermined direction a part of a bearing load applied to a bearing for supporting a driving shaft of said driving means.