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Scroll compressor

A compressor and scroll technology, applied in the field of refrigerant compressors, can solve the problems of loss of sealing properties, swelling and deterioration of O-rings, etc.

Inactive Publication Date: 2008-01-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0073] In addition, when using HFC-based refrigerants (R407C, R410A, etc.) O-rings swell and deteriorate due to compatibility with refrigerants and lose their sealing properties

Method used

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  • Scroll compressor
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Examples

Experimental program
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Embodiment Construction

[0093] Implementation form 1

[0094] Fig. 1 is a longitudinal sectional view showing a scroll compressor in a first embodiment. The names and functions of the components are the same as those in the conventional examples, and the same reference numerals are used to omit their description.

[0095] The two seals forming the shelf space 15f are O-rings 16c and 16d, which are provided on the cylindrical surfaces 15d and 15d formed by the inner periphery of the guide frame 15 and the outer periphery of the flexible frame 3 . The O-ring is made of HNBR material, so that even when HFC-based refrigerant is used, the O-ring will not swell and deteriorate. Generally, the O-ring can be selected from an appropriate material according to the type of refrigerant to be filled in the compressor and the temperature of the atmosphere.

[0096] When the compressor is started, the pressure Pm2 in the rack space 15f guided by the refrigerant gas in the compression chamber 1d drawn out will ris...

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Abstract

The invention relates to setting pressure Pm1(MPa) of outer space to Pm1-Ps+a by throttle valve or control valve in oil supply route, and setting pressure differential within motion pressure differential of scroll compressor.

Description

technical field [0001] The present invention relates to refrigerant compressors used in refrigeration and air conditioners. Background technique [0002] Fig. 7 is a longitudinal sectional view of the structure of a conventional scroll compressor shown in JP-A-2000-161254. [0003] In Fig. 7, 1 is a fixed scroll, and the outer peripheral part is connected to the guide frame 15 by bolts (not shown). Plate-shaped helical teeth 1b are formed on one surface (the lower side in FIG. 7 ) of the bottom plate portion 1a, and two Oldham guide grooves 1c arranged substantially along a straight line are formed on the outer peripheral portion. The claw 9c of the Oldham ring 9 is engaged in the Oldham's guide groove 1c so that it can freely reciprocate and slide. Then press the suction pipe 10a penetrating through the airtight container 10 from the side of the fixed scroll 1 . [0004] 2 is an oscillating scroll, and a plate-shaped helical tooth 2b having substantially the same shape a...

Claims

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Application Information

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IPC IPC(8): F04C18/02F04C27/00
Inventor 池田清春小川喜英伏木毅西木照彦濑畑崇史佐野文昭关屋慎
Owner MITSUBISHI ELECTRIC CORP
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