Multi-stage compression-type rotation compressor and compression-type rotation compressor

Abstract

The invention provides a multi-stage compression-type rotation compressor and a compression-type rotation compressor provided with a cylinder body, which can be used to close a spring chamber without performing the pressing operation. The multi-stage compression-type rotation compressor is provided with a first and a second rotation compression components (3,4) driven by a driving component (2) disposed in a closed container. The first and the second rotation compression components (3,4) are provided with cylinder bodies (31, 41); roller (33, 43), which are capable of rotating in inside parts of the cylinder bodies in an eccentric manner; blades, which abut against the rollers, and can be used to divide the inside parts of the cylinder bodies into a low pressure chamber and a high pressure chamber. The multi-stage compression-type rotation compressor can be used to compress the refrigerant to be in the high pressure by using the first rotation compression component and the second rotation compression component, and then exhaust the same. The spring chamber, which is arranged as a part of the cylinder body of the second rotation compression component, and can be used to accommodate a spring (6), penetrates through an upper surface and a lower surface of the cylinder body connected to the outer periphery, and is provided with an opening. The length of the spring chamber is arranged in the way, that the spring inserted in the chamber remains in the compression state.

Description

technical field [0001] The present invention relates to a rotary compressor, which is equipped with a drive assembly and a single-stage or multi-stage rotary compression assembly driven by the drive assembly in a closed container, and compresses refrigerant through the rotary compression assembly, especially relates to a multi-stage Compression-type rotary compressors with rotary compression assemblies and compression-type rotary compressors with single-stage rotary compression assemblies. Background technique [0002] In the past, as for the compression type rotary compressor, although various types of compression type rotary compressors have been proposed and developed, a compression type rotary compressor having a multi-stage rotary compression assembly such as a two-stage compression type is well known. Rotary compressor (for example, refer to Patent Document 1). [0003] Such as Figure 7 and Figure 8 As shown, the rotary compressor 100 is an internal intermediate pr...

AI Technical Summary

Problems solved by technology

Therefore, once the problem of leakage of refrigerant and oil from the gap occurs, the required function cannot be fully exhibited.

[0008] In addition, in the case of press-fitting work, there is a possibility of an increase in manufacturing cost due to an increase in man-hours.

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