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Rotary sloping cam plate compressor

A technology of swash plate and compressor, which is applied in the direction of mechanical equipment, machine/engine, liquid variable capacity machinery, etc., and can solve the problems of gas leakage sealing performance, compressor performance reduction, decline, etc.

Inactive Publication Date: 2003-06-18
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased clearances lead to gas leakage and poor sealing performance, which degrades the performance of the compressor

Method used

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  • Rotary sloping cam plate compressor
  • Rotary sloping cam plate compressor
  • Rotary sloping cam plate compressor

Examples

Experimental program
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Embodiment Construction

[0011] Attached below Figure 1-3 , an embodiment of the present invention applied in a swash plate compressor of a vehicle air conditioning system is introduced.

[0012] Such as figure 1 As shown, a front housing 11 is connected to the front end of the cylinder assembly 12 . A rear casing 13 is connected to the rear end of the cylinder assembly 12 via a valve plate assembly 14 . For front housing 11, cylinder assembly 12 and rear housing 13 figure 2 The bolts 11a shown in are tightened to form the casing of this compressor. The front casing 11, the cylinder assembly 12 and the rear casing 13 are all made of aluminum base metal. The thermal expansion coefficient of aluminum is about 19~23×10 -6 / °C. Notice: figure 1 The left side shows the front of the compressor, figure 1 The right side of the shows the rear of the compressor.

[0013] The valve plate assembly 14 includes a main plate 14a, a sub-plate 14b stacked on the rear surface of the main plate 14a, and a ret...

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PUM

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Abstract

A shaft and a rotary valve, which are formed integrally, are made of an iron-based metal while a cylinder block is made of an aluminum-based metal. A sleeve forms a slide surface between the cylinder block and the rotary valve when the shaft and the rotary valve rotate together. The sleeve has a coefficient of thermal expansion closer to those of the shaft and the rotary valve than that of the cylinder block. This structure prevents an increase in the clearance between the housing and the rotary valve due to the increased temperature at the time the shaft rotates at a high speed, and prevents gas leakage and a reduction in sealability.

Description

technical field [0001] The present invention relates to a bearing structure suitable for a swash plate type compressor rotary valve for vehicle air conditioners. Background technique [0002] A reciprocating compressor is disclosed in Japanese Patent Laid-Open Publication No. 6-137265, which includes: a cylinder assembly having a plurality of cylinder bores around its axial centerline; a shaft; a plurality of pistons connected to a swash plate in the crank chamber and reciprocating in respective cylinder bores, the swash plate moving with the shaft; a housing having axial bores communicating with the cylinder assembly A suction chamber and a discharge chamber are formed in the outwardly facing area of ​​the suction chamber, and the housing closes the end face of the cylinder assembly. This compressor has communication passages formed between the respective cylinder bores and the axial bore of the cylinder assembly, and a rotary valve connected to the shaft so as to rotate s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08F04B27/10
CPCF04B27/1018F04B27/08
Inventor 樽谷知二神德哲行望月贤二井上宜典
Owner TOYOTA IND CORP
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