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Porous part for refrigerators, and method of producing the same and refrigerator

A technology for refrigeration equipment and manufacturing methods, applied to parts of pumping devices for elastic fluids, refrigeration components, mechanical equipment, etc., capable of solving problems such as deterioration of refrigeration oil, contamination and sludge, and increased costs

Inactive Publication Date: 2005-02-09
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-rust oil in these oils tends to deteriorate the refrigeration oil of the refrigerator, and it is easy to cause problems such as contamination and sludge that cause clogging
Therefore, it is conceivable to clean the above-mentioned sintered parts with a cleaning device before assembling them as components of the compressor, but in this case, new equipment investment is required, so there is a problem of cost increase.

Method used

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  • Porous part for refrigerators, and method of producing the same and refrigerator
  • Porous part for refrigerators, and method of producing the same and refrigerator
  • Porous part for refrigerators, and method of producing the same and refrigerator

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Hereinafter, the present invention will be described in detail using illustrated embodiments.

[0025] Referring to Fig. 2, a method of manufacturing a sintered component for a refrigeration device as an embodiment of the present invention will be described. The manufacturing method is as Figure 2A , Figure 2B As shown, first, the sintered part processed and formed after sintering, that is, the cover member 11A inside the compressor is placed in a vacuum, and a large amount of antirust oil impregnated during the above-mentioned processing and forming is taken out from the cover member 11A inside the compressor. Next, the cover member 11A inside the compressor is immersed in an alkylbenzene-based oil as refrigerating machine oil, so that the cover member 11A inside the compressor contains the alkylbenzene-based oil. Figure 2A , Figure 2B Shown are a plan view and a side view of a rear cover 11A, which is a cover member inside the compressor.

[0026] In this way,...

Embodiment 2

[0032] figure 1 Shown is a refrigerant circuit of an air conditioner as an embodiment of the refrigerating apparatus of the present invention. In this air conditioner, the outdoor unit 1 and the indoor unit 2 are connected by connecting pipes 3 and 5, and a slightly flammable refrigerant R32 is used as a refrigerant.

[0033] The refrigerant piping for the outdoor unit 1 sequentially connects the valve 6, the four-way switching valve 7, the gas-liquid separator 8, the pressure accumulator 10, the compressor 11, the four-way switching valve 7, and the outdoor heat exchanger connected to the connecting piping 5. 19. The main expansion valve 12 is connected to the valve 13, and the valve 13 is connected to the above-mentioned connecting pipe 3. The indoor unit 2 is constituted by an indoor heat exchanger 15 connected to the connecting pipes 3 and 5 .

[0034] A high-pressure safety valve 18 is connected to the refrigerant pipe 17 on the expansion valve 12 side of the outdoor he...

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PUM

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Abstract

In this porous part producing method, head parts (11A, 11B), which are sintered parts, in the interior of a compressor are subjected at least to vacuum substitution or heat blow cleaning, whereby oils, such as rust-preventive oil in the head parts (11A, 11B) in the interior of the compressor, forming a cause of contamination or sludge, is discharged from the head parts (11A, 11B) in the interior of the compressor, whereupon the head parts (11A, 11B) in the interior of the compressor are immersed in alkyl benzene type oil serving as refrigerator oil. Thereby, the deterioration-inducing substances in the head parts (11A, 11B) in the interior of the compressor can be replaced by the refrigerator oil; thus, it is possible to produce a porous part for refrigerators which will not bring about contamination or sludge even if used as a component for refrigerators for a long time.

Description

technical field [0001] The present invention relates to a porous member for refrigerating equipment used as a component of, for example, a compressor of a refrigerating machine and a refrigerant piping, and a method for manufacturing the same. In addition, the present invention also relates to, for example, a refrigerating device having materials (for example, porous members) used as components of a compressor of a refrigerating machine and refrigerant piping. Background technique [0002] Sintered parts, which are porous parts, are cheap, but processing oil, rolling oil, anti-rust oil, etc. are used during processing, and a large amount of these oils are contained in the sintered part after processing. [0003] For example, if this sintered part is used as a component of a compressor of a refrigerator, pressure fluctuations are generated inside the compressor through repeated operation and stop, and the above-mentioned processing oil and the like are discharged from the sin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M171/00F01C21/10F04B39/00F04B39/02F04C29/02F25B43/02
CPCF04C2210/26B22F2998/00C10M171/008F04C2210/14F04C29/02F01C21/104F01C21/108B22F3/1146F04B39/00
Inventor 平良繁治远藤敦
Owner DAIKIN IND LTD