Hermetic type compressor

A compressor and hermetic technology, applied in the field of hermetic compressors, can solve the problems of reduced refrigerant gas suction efficiency, reduced compressor efficiency, increased compression, etc., so as to improve refrigeration cycle efficiency, compressor efficiency, and suction. The effect of efficiency

CN102588289AInactive Publication Date: 2012-07-18MITSUBISHI ELECTRIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a hermetic type compressor which can raise a suction efficiency of a refrigerant gas by minimizing pressure loss of the refrigerant gas when the refrigerant gas passes through a suction storing device. The hermetic type compressor is characterized in that: the suction storing device comprises the following elements: (1) an inflow pipe, which is a straight pipe with a fixed inner diameter, and is connected with a refrigerant piping of refrigeration cycle; (2) a main body part, which has a tubular integral body, wherein two ends of the main body part are in the shape of area contraction, and the main body part has a specified diameter of the following volume, the volume can realize the functions of performing gas-liquid separation for the suction refrigerant gas and storing the separated liquid-state refrigerant which contains refrigerating machine oil, the end of the main body part at the inflow pipe side is in the shape of diffuser with a specified opening angle, the diffuser shape part is smoothly formed by curves which are protruded inwards, and is connected with the inflow pipe; and (3) at least one outflow pipe, wherein a diameter of an inflow port of the outflow pipe is larger than a diameter of the inflow pipe, or the inflow port is in the shape of bell mouth.
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Description

technical field

[0001] The present invention relates to hermetic compressors. In detail, it is related with the hermetic-type compressor which suppresses the pressure loss of a suction accumulator. Background technique

[0002] Conventionally, in order to ensure the gas-liquid separation of sucked-in refrigerant gas and the storage volume of the separated liquid refrigerant containing refrigerating machine oil, it has been proposed to insert an outflow pipe into a cylindrical main body so as to reach the inside of the main body. A suction accumulator of a hermetic compressor having an inflow pipe (for example, refer to Patent Document 1.).

[0003] Patent Document 1: Japanese Patent Laying-Open No. 2009-162222 ( Figure 8 )

[0004] The suction accumulator provided in the conventional hermetic compressor, which has the function of gas-liquid separation of the suction refrigerant gas and the function of storing the separated liquid containing refrigerating machine oil, is l...

Examples

Embodiment approach 1

[0026] The hermetic compressor of the present embodiment has a suction accumulator in which a suction accumulator body having an arbitrary diameter having The expansion angle of the diffuser effect is connected to the smooth curved shape protruding inward. The above-mentioned volume is the volume that satisfies the functions of gas-liquid separation of the suction refrigerant gas and storage of the separated liquid refrigerant containing refrigerating machine oil. The suction storage The device is provided with at least one outflow pipe, and the inflow port of the outflow pipe is preferably expanded in diameter and narrowed at the engagement portion of the suction port of the compression chamber of the compression element.

[0027] In addition, in the hermetic compressor of this embodiment, in order to limit the position of the refrigerant piping connected to the air conditioner body and minimize the pressure loss, the inflow pipe connected to the air conditioner body is provid...