Patent ID: 6116875
Filing Date: 2000-09-12
Classification: F01C,F04C

Abstract:
A displacement machine for compressible media, comprising:at least two delivery spaces which are arranged in a housing and lead spirally from a radially outer inlet to a radially inner outlet;a displacer which, when operating, executes a circulating but non-rotating movement; anda disk with spiral bars arranged on one side of said disk, said bars, as viewed in the radial direction, having outer and inner sealing faces which cooperate with outer and inner cylindrical walls of said delivery spaces in order, when operating, to form working chambers that move from said radially outer inlet to said radially inner outlet, wherein said outer and inner sealing faces are offset, as viewed in a circumferential direction, in order to form a working chamber each in a uniform rotational angle interval of the movement of the displacer, and wherein said spiral bars have end regions that are symmetrically opposite one another as viewed in the circumferential direction.