Patent ID: 6179593
Filing Date: 2001-01-30
Classification: F04C

Abstract:
In a displacement fluid machine, which includes a displacer, a cylinder, end plates with the displacer and the cylinder arranged therebetween, and a drive shaft, and in which an inner wall surface of the cylinder and an outer wall surface of the displacer define therebetween one space when a center of the displacer is made to correspond with an axis of rotation of the drive shaft, and a plurality of spaces are defined therebetween when the displacer and the cylinder are located in an orbit position, a first of said end plates including a plurality of suction ports, the improvement comprising means for supplying a lubricating oil to surfaces of said displacer opposed to said end plates, and holes formed in a second of said end plates opposite to said first end plate formed with suction portions, said holes being provided at positions in the second end plate corresponding to positions in said first end plate at which said suction ports are provided.