Hermetic rotary compressor and refrigerating circulatory device using the compressor

A rotary compressor, hermetic technology, used in compressors, parts of pumping devices for elastic fluids, and parts of rotary piston/oscillating piston pumps, etc., can solve the problem of unreliable lubrication and deflection of rotating shafts. Problems such as enlargement and deviation, to achieve the effect of reducing wear and tear and reducing the occurrence of failures

Inactive Publication Date: 2007-02-14
TOSHIBA CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the ball bearing is a point support, the deflection of the rotating shaft becomes larger, or the gap in the compression part is deviated due to the internal gap of the ball bearing, or the lubrication becomes unreliable, etc.

Method used

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  • Hermetic rotary compressor and refrigerating circulatory device using the compressor
  • Hermetic rotary compressor and refrigerating circulatory device using the compressor
  • Hermetic rotary compressor and refrigerating circulatory device using the compressor

Examples

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Embodiment Construction

[0040] Next, an embodiment of the hermetic rotary compressor of the present invention will be described with reference to the drawings.

[0041] figure 1 It is a schematic diagram of the hermetic rotary compressor and refrigeration cycle device of the present invention, figure 2 It is an enlarged longitudinal sectional view showing the rotary compression member.

[0042] Such as figure 1 As shown, the refrigeration cycle device S of the present invention includes: the compressor 1 of the present invention, the condenser 11 , the expansion tube 12 and the evaporator 13 .

[0043] The compressor 1 of the present invention includes a sealed case 2 , and a motor 3 and a rotary compression member 5 connected to the motor 3 via a rotating shaft 4 are accommodated in the sealed case 2 .

[0044] Such as figure 1 and figure 2 As shown, the rotary compression member 5 includes: a cylinder block 52 forming a cylinder chamber 51 , a roller 53 fitted on the eccentric portion 4 a of...

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PUM

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Abstract

The invention provides a hermetic rotary compressor capable of reducing friction loss at a bearing part by solving problems caused by use of ball bearing and enabling use of a ball bearing. This hermetic rotary compressor is provided with a plurality of ball bearings (56, 57) on a main bearing (54) and a ball bearing (58) on an auxiliary bearing (55). Distance between the ball bearings (56, 57) positioned on both end sides of the main bearing (54) is set larger than distance between the ball bearing (57) posisitioned on the cylinder block (52) side of the main bearing (54) and the ball bearing (58) of the auxiliary bearing (55).

Description

technical field [0001] The present invention relates to a hermetic rotary compressor and a refrigerating cycle device using the compressor, and more particularly to a hermetic rotary compressor using a ball bearing for a bearing and a refrigerating cycle device using the compressor. Background technique [0002] Oil-lubricated journal bearings are often used as bearings of rotary compressors used in refrigerant compressors of refrigeration cycle equipment such as air conditioners. Bearing pads are installed on such journal bearings, and the load from the shaft is supported by forming an oil film between the bearing pads and the shaft, but the bearing pads gradually wear out, and the shaft and the The gap between the bearing pads increases, and if the gap between the shaft and the bearing pads is greater than or equal to a certain level, the oil film cannot be maintained between the shaft and the bearing pads, resulting in problems such as sintering of the shaft. [0003] On...

Claims

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Application Information

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IPC IPC(8): F04C29/00F25B1/04
Inventor 藤原尚义
Owner TOSHIBA CARRIER CORP
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