Translation type rotary compressing device

Abstract

The invention relates to the fields of gas compression, fluid conveyance and evacuation, in particular to a rotary compressor having a translational piston. The translational rotary compression device comprises a cylinder body, a translational piston and an eccentric rotor, wherein the eccentric rotor is arranged inside the cylinder body, the translational piston is arranged on the eccentric rotor, the translational piston is movably connected with the eccentric rotor, a rotating center of the eccentric rotor is concentric with the cylinder body, the outer lateral surface of the translational piston is tangential to the inner lateral surface of a round cylinder body, a crescent working chamber is formed inside the compressor, an inner wall of the cylinder body is articulated with a sliding plate, a sliding plate groove is arranged in a radial direction of the translational piston, the sliding plate is passed through the wording chamber to be extended into the sliding plate groove, the sliding plate is connected with the sliding plate groove in a sliding way, the sliding plate divides the working chamber into an expansion chamber and a compression chamber, and the expansion chamber and the compression chamber are respectively provided with a suction port and an exhaust port. The compressor has the advantages of obviously improving volumetric efficiency, improving reliability of the mechanism, reducing friction loss and improving mechanical efficiency.

Description

technical field

[0001] The invention relates to the fields of gas compression, fluid delivery and vacuum pumping, in particular to a rotary compression machine with a translational piston. Background technique

[0002] Gas compressors, fluid pumps and vacuum pumps are important general purpose compression machinery. At present, rolling piston compression machinery and rotor compression machinery, as representatives of the second generation of compression machinery, both have a crescent-shaped working chamber; the crescent-shaped working chamber is separated into an expansion chamber and a compression chamber by a slide plate; the rotating parts (rotor or Translational piston) changes the volume of the expansion chamber and the compression chamber to realize the suction (liquid) and exhaust (liquid) of the compression machine. However, there is a problem in these two compression machines, that is, the sliding plate extends into the working chamber to isolate the expansion ch...

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