Displacement type fluid machine having an orbiting displacer forming a plurality of spaces and method for manufacturing same

摘要

A displacement type fluid machine for reducing a fluid loss of a discharge process as much as that of a scroll fluid machine has a displacer which is provided with at least one through hole for working the outer wall surface of said displacer during manufacture of said displacer, said at least one through hole extending in an axial direction of a rotating shaft.