Opposed gas bearing linear compressor

Abstract

The invention relates to an opposed gas bearing linear compressor. The compressor comprises a cylinder, two pistons distributed in the cylinder in an opposed manner and two linear motors distributed on the outer side of the cylinder in the opposed manner, wherein a compression chamber is arranged in the cylinder; the two pistons are positioned on the two sides of the compression chamber; the pistons and the linear motors on the same sides of the compression chamber correspond to one another one to one; under driving of the respective corresponding linear motors, the two pistons do synchronous opposite reciprocating rectilinear motion along the axial direction of the cylinder. The pistons are unsupported in the axial direction of the cylinder and comprise piston inner sleeves and piston outer sleeves; the outer surfaces of the piston inner sleeves are attached to the inner surfaces of the piston outer sleeves; the piston inner sleeves are provided with inner gas flow passages and gas throttle passages; the piston outer sleeves are provided with outer gas flow passages. Compared with similar linear compressors in the existing technology, the compressor has the advantages of low vibration noise, small piston assembly difficulty, long life and the like, and has great application space in the field of low-temperature refrigeration.

Description

technical field [0001] The invention relates to the technical field of linear compressors, in particular to an opposed gas bearing linear compressor. Background technique [0002] Generally speaking, a reciprocating compressor forms a compression space between the piston and the cylinder to suck and discharge the operating gas, so that the piston performs linear reciprocating motion inside the cylinder and compresses the working gas. Recently, existing reciprocating compressors include components such as a crankshaft in order to convert the rotational force of the drive motor into the reciprocating linear motion force of the piston. Therefore, there is a problem that a large mechanical loss due to motion conversion occurs. In order to solve such problems, many linear compressors are being developed. [0003] This type of linear compressor, in particular, the piston is directly connected to the linear motor for reciprocating linear motion, so there is no mechanical loss ca...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an opposed gas bearing linear compressor, which can solve the problems of existing linear compressors such as large vibration and noise, oil lubrication, and difficulty in assembling moving parts of the compressor, and can eliminate the problem of linear compression The vibration and noise of the compressor, piston lubrication and axial support reduce the difficulty of assembly of moving parts and improve the service life and reliability of the linear compressor

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