Patent ID: 6332763
Filing Date: 2001-12-25
Classification: F01C,F04C

Abstract:
A displacement type fluid machine comprising:a displacer having an outer wall surface;a rotating shaft around a center of rotation of which said displacer orbits;a cylinder having an inner wall surface within which said displacer is provided and having a plurality of extrusions extruded inwardly of said cylinder, wherein the inner and outer wall surfaces are shaped such that one space would be provided between the inner wall surface of said cylinder and the outer wall surface of said displacer if a center of said displacer is located on the center of rotation of said rotating shaft, and a plurality of spaces are formed between the inner wall surface and the outer wall surface when a positional relationship between said displacer and said cylinder is located on a center of gyration;suction ports communicating with the plurality of spaces; anddischarge ports communicating with the plurality of spaces;wherein the curves of the inner wall surface of said cylinder and the outer wall surface of said displacer are formed so that two spaces which are adjacent with respect to one of said discharge ports and suck working fluid from different suction ports simultaneously complete their suction to become one working chamber.