Double cylinder translation rotating compressing device

Abstract

The invention relates to the field of gas compression, fluid transportation and vacuum-pumping, in particular to a double-cylinder translational rotary compressor. The double-cylinder translational rotary compressor comprises a cylinder body, a crankshaft and two translational pistons, wherein an inner chamber of the cylinder body is divided into a left chamber and a right chamber the middle parts of which are communicated with each other; the crankshaft is provided with two eccentric structures which run through the left chamber and the right chamber; the two translational pistons are movably connected with the two eccentric structures of the crankshaft respectively; outer side faces of the two translational pistons are tangent with inner side faces of the left chamber and the right chamber respectively, so as to form a left crescent-shaped working chamber and a right crescent-shaped working chamber; sliding plates are hinged to insides of the left chamber and the right chamber respectively; sliding plate grooves are arranged on the two translational pistons respectively; two sliding plates are extended into the sliding plate grooves respectively, and divide the left working chamber and the right working chamber into an expansion chamber and a compression chamber respectively; and feed openings and discharge openings are arranged on the expansion chamber and the compression chamber respectively. The double-cylinder translational rotary compressor has the advantages of obviously improving the volumetric efficiency, improving the mechanical reliability and the mechanical efficiency, and reducing the friction loss.

Description

technical field [0001] The invention relates to the fields of gas compression, fluid delivery and vacuum pumping, in particular to a double-cylinder translation rotary compression device. 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 cha...

AI Technical Summary

Problems solved by technology

However, the piston and the slide plate are integrated, which is difficult to process; the reciprocating space of the slide plate needs to be reserved inside the cylinder, which makes the cylinder bulky and easy to deform; due to structural limitations, the compression heat and friction heat generated by the machine cannot be quickly Discharge, poor heat dissipation performance

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