Patent ID: 9046089
Filing Date: 2015-06-02
Classification: F04B,F16D

Abstract:
1. A wobble plate type variable displacement compressor having pistons inserted reciprocally into cylinder bores, a swash plate rotated together with a rotational main shaft and supported changeably in angle relative to said main shaft, a wobble plate which is connected to said pistons, in which a rotational movement of said swash plate is converted into a wobble movement of said wobble plate, and which transmits said wobble movement to said pistons to reciprocate said pistons, and a rotation preventing mechanism of said wobble plate, characterized in that said rotation preventing mechanism of said wobble plate comprises a structure for connecting said outer ring and said wobble plate is formed by providing a plurality of concave portions arranged in a circumferential direction on one member, plastically deforming the other member partially at locations corresponding to said concave portions so as to fit into said concave portions, and fixing both members to each other in an axial direction and in a rotational direction by means of said plastic deformation, said main shaft is rotatably supported within the housing, the housing having the cylinder bores at a rear end and an inboard support for the main shaft at a front end, wherein said guide grooves opposing each other of said inner ring and said outer ring of said wobble plate rotation preventing mechanism are formed at a relative angle of 30 to 60 degrees relative to a center axis of said rotational main shaft, and guide grooves opposing each other for forming a single ball guide are disposed so as to be symmetric relative to a plane perpendicular to said main shaft and passing through a wobble center of said wobble plate at a condition where a relative angle between an axis of said inner ring and an axis of said outer ring is zero.