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Variable displacement compressor

A technology of a compressor and a hinge mechanism, applied in the field of compressors, can solve the problems of weakening the controllability of the displacement of the variable displacement compressor and increasing the sliding resistance, etc.

Inactive Publication Date: 2005-05-18
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the sliding resistance between the inner walls of the guide grooves 102a and 102b and the corresponding spherical protrusions 103a and 103b, and weakens the controllability of the displacement of the variable displacement compressor.

Method used

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  • Variable displacement compressor
  • Variable displacement compressor
  • Variable displacement compressor

Examples

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Embodiment Construction

[0022] In the drawings, like reference numerals are used to refer to like components throughout the drawings.

[0023] A variable displacement compressor 10 of a preferred embodiment of the present invention will now be described with reference to FIGS. 2 to 4 . In a preferred embodiment, the compressor 10 is used in a refrigeration cycle of a vehicle air conditioner.

[0024] FIG. 2 is a cross-sectional view of compressor 10 . The left side shown in FIG. 2 is referred to as the front side of the compressor 10 , and the right side is referred to as the rear side of the compressor 10 . As shown in Figure 2, the compressor 10 has a casing 10a, and the casing 10a includes a cylinder block 11, a front casing 12 fixed to the front end of the cylinder block 11, and a rear casing fixed to the rear end of the cylinder block 11 by a valve plate 13 Body 14.

[0025] A crank chamber 15 is defined in the housing 10 a between the cylinder block 11 and the front housing 12 . A drive sha...

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PUM

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Abstract

A variable displacement compressor (10) includes an easily machined hinge mechanism (19). A hinge mechanism is provided in the compressor between the lug plate (17) and the cam plate (18). The hinge mechanism includes a support (20) formed on the cam disc. A spherical protrusion (23) extends from the support in a rearward direction relative to the direction of rotation of the drive shaft (16). A roller (22) extends from the support in a forward direction relative to the direction of rotation of the drive shaft. A first cam (24) is formed on the lug disc, surrounding and guiding the spherical portion. A second cam (25) is formed on the lug disc. The second cam includes a cam surface that contacts and guides the roller.

Description

technical field [0001] The invention relates to a compressor, in particular to a variable displacement compressor used in the refrigeration cycle of a vehicle air conditioner. Background technique [0002] A variable displacement compressor used in a refrigeration cycle includes a housing having a cylinder bore and rotatably supporting a drive shaft. The drive shaft supports the swash plate in a tiltable manner. The lug plate is fixed on the drive shaft to rotate integrally with the drive shaft. The hinge mechanism is arranged between the lug plate and the swash plate. A piston reciprocates in each cylinder bore. Pistons are attached to the peripheral portion of the swash plate. As the drive shaft rotates, this rotation is transferred to the swash plate through the lug plate and hinge mechanism. This causes the pistons to reciprocate and compress the refrigerant gas in the corresponding cylinder bore. And, the hinge mechanism guides the swash plate and changes the incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08F04B27/10
CPCF04B27/1072F04B27/0878F04B27/0891F04B27/0895F04B27/1054F04B27/1081F05B2210/12F05B2210/14F05B2250/192F05B2260/40F05B2260/506
Inventor 太田雅树栗田创小出达也村濑正和铃木润也
Owner TOYOTA IND CORP