Hermetic compressor

Abstract

A hermetic compressor has a hermetic container storing an oil, and a compressing element accommodated in the hermetic container and compressing a refrigerant gas; the compressing element has a compressing chamber, a cylinder forming the compressing chamber, a piston inserted into the cylinder and reciprocating, and a suction muffler (140) whose one end communicates with the compressing chamber; and the suction muffler (140) has a sound deadening space (142), a gas flow forming part (144) forming a gas flow (143) flowing in a constant direction in the sound deadening space (142), and an oil discharged opening (146) provided in a downstream side of the gas flow (143) in a lower part of the sound deadening space (142). By this constitution, there is realized the hermetic compressor in which the oil is more difficult to remain in the suction muffler (140), whose noise is lower, and whose performance is stabilized.

Description

technical field [0001] The present invention relates to hermetic compressors used in refrigeration cycles of domestic and professional refrigerators and the like. Background technique [0002] In recent years, the demand for global environmental protection has become stronger and stronger. Therefore, in refrigerators, other refrigerating cycle devices, and the like, particularly, improvement in efficiency is strongly desired. [0003] Heretofore, suction mufflers made of resin have been used in hermetic compressors used in refrigerators, refrigeration cycle devices, and the like. These conventional hermetic compressors are disclosed in documents such as Japanese Patent Unexamined Publication No. H05-195953. [0004] Hereinafter, a conventional hermetic compressor will be described with reference to the drawings. [0005] Fig. 9 shows a longitudinal sectional view of a conventional hermetic compressor. Figure 10 A perspective view of a suction muffler used in a convention...

AI Technical Summary

Problems solved by technology

As a result, the input energy of the compressor 200 increases

Or, the refrigerant gas is not sufficiently compressed, so that the cooling capacity of the compressor 200 is reduced

In addition, the noise of the compressor 200 increases due to sudden changes in the compression load, etc.

In addition, the performance of the heat exchanger is affected due to the large amount of oil 202 being discharged into the refrigeration cycle

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