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Rotary compressor

A technology for rotary compressors and compressor housings, which is applied to rotary piston machinery, rotary piston pumps, rotary piston/swing piston pump components, etc., and can solve problems such as increased costs

Inactive Publication Date: 2015-05-13
FUJITSU GENERAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when attaching the attachment to the intermediate partition with screws, there is a problem that a screw processing process is required, resulting in an increase in cost

Method used

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  • Rotary compressor
  • Rotary compressor
  • Rotary compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] Hereinafter, embodiments of the rotary compressor of the present invention will be described in detail based on the drawings. In addition, this invention is not limited to this Example.

[0091] (Example)

[0092] figure 1 is a longitudinal sectional view showing a rotary compressor to which the present invention is applied, figure 2 is a cross-sectional view of the first and second compression parts, image 3 It is a partially enlarged longitudinal sectional view showing a compression portion of an embodiment of the rotary compressor of the present invention, Figure 4 yes image 3 Enlarged view of part A.

[0093] Such as figure 1As shown, the rotary compressor 1 of Embodiment 1 is provided with: a compression part 12, which is provided at the lower part of the airtight vertical cylindrical compressor housing 10; and an electric motor 11, which is provided at the upper part of the compressor housing 10 , drives the compression part 12 via the rotating shaft 15...

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PUM

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Abstract

According to one embodiment, a rotary compressor sucks in refrigerant gas from the low pressure side of a refrigeration cycle and discharges compressed refrigerant gas to the high pressure side. The rotary compressor includes a first compressing unit (12S) and a second compressing unit (12T) arranged one on top of another with a partition board (140) therebetween. The partition board (140) is provided with a vertical hole (141) and a horizontal hole (143). After the front end (144a) of an injection copper tube (144) to inject a refrigerant liquid is loose fit in the horizontal hole (143), an injection liner (145) having an outer diameter larger than the inner diameter of the injection copper tube (144) is inserted into the injection copper tube (144) from the back end (144b) and is pressed up to the front end (144a) to increase the diameter of the front end (144a) of the injection copper tube (144) such that the injection copper tube (144) is tight fit in the horizontal hole (143).

Description

technical field [0001] The present invention relates to a rotary compressor used in the refrigeration cycle of an air conditioner. Background technique [0002] The prior art discloses a cooling device for a hermetic rotary compressor. The hermetic rotary compressor is equipped with an electric part and a rotary compressor driven by the electric part and has two cylinders in an airtight container. Partly formed, the installation piece fixed on the injection copper pipe by crimping or welding is accurately positioned at the center position of the thickness direction of the intermediate partition clamped by the two cylinders, and the center partition of the intermediate partition is made The inner diameter of the vertically penetrating small hole for spraying and the length to the upper and lower cylinders are equal, so that the refrigerant liquid is sprayed to the cylinder in the same amount, and the installation part fixed by the injection copper pipe is installed on the cyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C23/00F04C29/00
CPCF04C18/3564F04C23/001F04C23/008F04C29/0007F04C2230/60F04C2240/805F04C2240/806
Inventor 森下卓
Owner FUJITSU GENERAL LTD