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Vehicle compressor with simple water proof structure for pulley supported by bearing

A technology for automotive compressors and pulleys, applied to belts/chains/gears, components with teeth, casings/covers/supports, etc., which can solve problems such as increased number of parts and complicated fixing operations

Inactive Publication Date: 2007-08-01
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, using many screws to fix the waterproof cover increases the number of parts and complicates the fixing work

Method used

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  • Vehicle compressor with simple water proof structure for pulley supported by bearing
  • Vehicle compressor with simple water proof structure for pulley supported by bearing
  • Vehicle compressor with simple water proof structure for pulley supported by bearing

Examples

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Embodiment Construction

[0044] Referring to Fig. 1, an automobile compressor of the present invention will be introduced.

[0045] The compressor shown in the figure comprises a compressor housing 1 . The compressor housing 1 includes a compression element (not shown) within the housing. A drive shaft 3 connected to the compression element inside the compressor housing 1 protrudes outward through the inside of the cylindrical portion 4 and is integrally coupled with one end of the compressor housing 1 . The cylindrical portion 4 has an outer peripheral surface on which a pulley 6 is rotatably supported via a ball bearing 5 . The bearing 5 includes an inner ring 7 fixed on the outer peripheral surface of the cylindrical part 4 and an outer ring 8 fixed on the inner surface of the cylindrical hub 6a of the pulley 6, and a plurality of balls 9 are placed between the inner ring 7 and the outer ring 8 and can be scrolled. The pulley 6 is connected with the drive shaft 3 through a torque limiting mechan...

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PUM

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Abstract

In an automotive compressor, a pulley ( 6 ) is rotatably supported on a compressor housing ( 1 ) through a bearing ( 5 ) to have an axial gap ( 10 ) left between the compressor housing and the pulley. A waterproof cover ( 13 ) covers the axial gap and serves to suppress water from the outside from reaching the bearing. The waterproof cover is fixed to the compressor housing by a ring-shaped fastener ( 14 ). Instead of use of the waterproof cover, the axial gap may be controlled in size thereof.

Description

[0001] This patent application claims priority from Japanese Patent Application No. 2002-071570, the contents of which are incorporated herein by reference. technical field [0002] The invention relates to an automobile compressor, in particular to a waterproof structure of a bearing, and a belt pulley is rotatably supported on the compressor housing through the bearing. Background technique [0003] For example, Japanese Laid-Open Patent Publication No. 2001-74119 discloses a refrigeration cycle compressor. In such compressors, the pulley is rotatably supported on the compressor housing via bearings. When the pulley is driven to rotate by an external drive source, the compression element inside the compressor housing is driven through a power transmission system including a drive shaft. The powertrain has a torque limiting mechanism. The function of the torque limiting mechanism is to discontinue the transfer of rotational power from the pulley to the compression element...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/10F04B39/00B60H1/32F04B27/08F04B27/10F04B39/12F16H55/36
CPCF04B27/0895F04B27/1081F16H55/36F04B39/121
Inventor 松原智彦小泽笃史
Owner SANDEN CORP