Rolling piston used for refrigeration compressor

Abstract

The invention provides a rolling piston used for a refrigeration compressor. The rolling piston comprises an inner pipe and an outer pipe. One end surface of the inner pipe is axially provided with an outward flange. One end surface of the outer pipe is axially provided with an inward flange. The flange of the inner pipe is connected with one end of the outer pipe. The flange of the outer pipe is connected with one end of the inner pipe. A cavity is formed between the inner pipe and the outer pipe. According to the rolling piston used for the refrigeration compressor, due to the fact that the structure of the rolling piston is simplified to the inner pipe provided with the outward flange and the outer pipe provided with the inward flange, and machining of the inner pipe and the outer pipe is easy, the whole piston is simple in structure, low in machining cost and high in yield, and mass production is convenient.

Description

technical field [0001] The invention relates to a rolling piston for a refrigeration compressor used in a compressor. Background technique [0002] The rotary refrigeration compressor uses the rotation of the eccentric refrigeration compressor in the cylinder to cause the change of the working volume to compress the gas. Because of its simple structure and reliable performance, it has become one of the most common compressors in the market. [0003] The rolling piston is an important part of the rotary refrigeration compressor sleeve. It is set on the eccentric shaft of the compressor. When the main shaft rotates under the drag of the prime mover, the eccentric refrigeration compressor uses the rolling piston to rotate against the inner wall of the cylinder, causing a space change in volume. So as to achieve the purpose of compressing the refrigerant vapor. With the improvement of people's awareness of environmental protection, the refrigerants used in rotary compressors a...

AI Technical Summary

Problems solved by technology

[0004] For a long time, the rolling pistons used in refrigeration compressors are of solid structure and relatively heavy, which in turn results in high energy consumption for driving the pistons to rotate.

After research, the applicant has obtained a hollow cylindrical rolling piston for refrigeration compressors. Although it can reduce weight and energy consumption, it is difficult to popularize and apply it in large quantities due to its complex structure, difficult processing and high cost.

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