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Upper bearing of rotary compressor

A rotary compressor and bearing technology, applied in rotary piston machinery, rotary piston/oscillating piston pump components, rotary piston pumps, etc., can solve problems such as high fluid noise and affect compressor efficiency, and achieve The effect of improving performance and quality

Inactive Publication Date: 2007-06-13
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the upper bearing 32 of this prior art rotary compressor has the following problems: as everyone knows, the diameter of the discharge hole is inversely proportional to the damping and attenuation ability of the discharge hole to the energy of the high-pressure refrigerant, that is, the larger the discharge hole, the greater the pressure of the refrigerant. The louder the flow, but if the hole diameter is too small, it will affect the efficiency of the compressor
Because the exhaust hole 14 on the upper bearing 32 of this rotary compressor is cylindrical, that is, the aperture of each cross-section is the same, and this aperture is determined under the premise of ensuring compressor efficiency, but The shape and size of this hole will make the fluid noise generated when the refrigerant is discharged relatively large

Method used

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Embodiment Construction

[0011] As shown in Figures 3 and 1, the upper bearing 42 of the rotary compressor provided by the present invention includes an elliptical mounting groove 23 formed on the top surface of the cylinder 35, and one side of the mounting groove 23 is A circular bearing housing 25 with an exhaust hole 24 formed therethrough; protruding upward from the center of the bearing housing 25 to be integrally formed, and a shaft sleeve 26 that can penetrate the central hole of the crankshaft 31 is formed at the center; mounted on the bearing housing 25 The inside of the upper mounting groove 23, and one end is fixed to the exhaust valve plate 27 on the bottom surface of the mounting groove 23 on the side opposite to the exhaust hole 24; and the upper part of the exhaust valve plate 27 in the mounting groove 23, one end The stopper 28 is fixed with the fixed end of the exhaust valve plate 27, and the other end is warped upwards, so as to limit the rising height of the free end of the exhaust valv...

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Abstract

The invention relates to rotating compressor upper bearing. It includes bearing seat, axle sleeve, air outlet valve plate, and position limiting machine. The air outlet valve plate forms truncated cone which can ensure compressor efficiency, use diminishing aperture to reduce fluid noise while discharging secondary refrigerant, thereby increase product performance and quality.

Description

Technical field [0001] The invention relates to a rotary compressor, in particular to an upper bearing of the rotary compressor. Background technique [0002] Generally speaking, a compressor is a machine that compresses fluid. This type of compressor is composed of a closed container with a certain internal space, an electromechanical part installed in the closed container to generate driving force, and a compression machine part that can compress fluid by using the driving force of the electromechanical part. Figure 1 is a cross-sectional view of the longitudinal structure of a prior art rotary compressor. As shown in FIG. 1, the airtight container of the conventional rotary compressor 10 is composed of a cylindrical casing 3 and an upper cover 4 and a lower cover 5. One side of the housing 3 is provided with a refrigerant inlet 1 and the center of the upper cover 4 is provided with a refrigerant outlet 2. The electromechanical part located on the upper part of the airtight con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/00F04C29/06
Inventor 章炯亮
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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