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Shaft bearings, compressor with same, and methods

A support, support technology, applied in the direction of bearing components, bearings, combustion methods, etc., can solve problems such as extra costs

Inactive Publication Date: 2012-02-22
BITZER KUEHLMASCHINENBAU GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, while the method has some advantages, one disadvantage of the solution is the additional cost and complexity associated with the need to machine the bearing surface for a highly precise fit between the shaft and the bearing surface

Method used

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  • Shaft bearings, compressor with same, and methods
  • Shaft bearings, compressor with same, and methods
  • Shaft bearings, compressor with same, and methods

Examples

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Embodiment Construction

[0021] One embodiment of the present invention has been shown as one or more bearing sleeves 10 , 12 and 14 that are rotatably mounted relative to the drive shaft 16 in the context and application of the scroll compressor assembly 20 . Scroll compressor assembly 20 operates in lubricating oil 22 and is adapted to compress refrigerant entering through inlet 24 . Within scroll compressor assembly 20, refrigerant is compressed and exits outlet 26 in a compressed state.

[0022] Before turning to details of the one or more bearing sleeves 10, 12, 14, some background on the illustrated scroll compressor assembly 20 will be given for orientation purposes, although it should be understood that the present invention can also Applicable to other compressor structures for refrigerants, etc. Scroll compressor assembly 20 generally includes an outer housing 28 that includes an inlet 24 and an outlet 26 . Shell 28 may typically comprise one or more stamped and formed sheet steel shell se...

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PUM

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Abstract

A bearing material composition that lines a support includes a combination of a thermoplastic conforming material and abrasive particles which provide a combined effect for remedying the effects due to edge loading that may be caused by misalignment between the bearing and a shaft to which a portion is rotatably mounted. The conforming material may be PTFE such that it does not have a memory and is subject to cold flow and creep. As a result, misalignment problems and edge loading are remedied by the combination of abrasive removal of metal material from the drive shaft at the location of edge loading and creep of the conforming material at the location of edge loading which may provide an overall greater bearing interface surface.

Description

technical field [0001] The present invention relates generally to bearing support structures, and more particularly may relate to bearing support structures for specialized applications such as compressors and, according to one embodiment, scroll compressors. Background technique [0002] A scroll (or scroll) compressor is a specific type of compressor used to compress refrigerants for applications such as refrigeration, air conditioning, industrial cooling, and freezer applications, and / or that can use compressed fluids other applications. Such prior scroll compressors are known, for example, as U.S. Patent No. 6,398,530 to Hasemann, U.S. Patent No. 6,814,551 to Kammhoff et al., U.S. Patent No. 6,960,070 to Kammhoff et al., and to Kammhoff et al. All of the above documents, as listed in US Patent No. 7,112,046 to others, are assigned to Bitzer Corporation, which is closely related to the present assignee. The present invention pertains to improvements that may be implemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F16C33/12F04C18/02F16C33/02F04C29/00
CPCF04C18/0215F04C2230/60F04C2240/50F16C33/201F16C2208/32F16C2360/42F16C2360/44F16C2362/52Y10T29/4924Y10T29/49689F04B39/00F04C29/00F16C33/02F16C33/12
Inventor J·W·布施
Owner BITZER KUEHLMASCHINENBAU GMBH
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