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Double-headed piston type swash plate compressor

A technology of inclined plate compressor and double-headed piston, which is applied in the direction of liquid displacement machinery, mechanical equipment, machine/engine, etc., and can solve the problems affecting the variability of inclined plate

Inactive Publication Date: 2014-12-24
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the response characteristic of the displacement control valve used to control the pressure in the control pressure chamber is likely to affect the variability of the inclination angle of the swash plate

Method used

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  • Double-headed piston type swash plate compressor
  • Double-headed piston type swash plate compressor
  • Double-headed piston type swash plate compressor

Examples

Experimental program
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Embodiment Construction

[0011] In the following, reference will be made to Figure 1 to Figure 4 One embodiment embodying the present invention will be discussed.

[0012] like figure 1 As shown in , the housing 11 of the double-headed piston swash plate compressor 10 includes a first cylinder 12 and a second cylinder 13 connected to each other. The double-headed piston type inclined plate compressor 10 also includes a front housing 14 and a rear housing 15. The front housing 14 is connected to the first cylinder block 12 positioned toward the front (one side), and the rear housing 15 is connected to the rear housing 15 ( The second cylinder 13 located on the other side) is connected.

[0013] The first valve / port forming body 16 is provided between the front housing 14 and the first cylinder block 12 . The second valve / port forming body 17 is provided between the rear housing 15 and the second cylinder block 13 .

[0014] A suction chamber 14 a and a discharge chamber 14 b are defined between th...

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PUM

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Abstract

A double-headed piston type swash plate compressor includes a swash plate, a double-headed piston, a control pressure chamber, a discharge pressure region, a suction pressure region, a supplying passage, which extends from the discharge pressure region to the control pressure chamber, a narrowing portion, which narrows an opening degree of the supplying passage, and a displacement control valve. The displacement control valve controls a pressure in the control pressure chamber. The displacement control valve includes a driving force transmission rod, a valve chamber, a guide wall, and a back pressure chamber. The back pressure chamber is in communication with the valve chamber through a clearance between the guide wall and the driving force transmission rod. The narrowing portion has a passage cross-sectional area that is larger than a passage cross-sectional area of the clearance.

Description

Background technique [0001] The present invention relates to a double-headed piston type swash plate compressor including a double-headed piston engaged with a swash plate and reciprocating with a stroke depending on the inclination angle of the swash plate. [0002] Japanese Patent Publication H1-190972 teaches an example of a double-headed piston type swash plate compressor having a crank chamber. The crank chamber in this publication is not used as a control pressure chamber for changing the inclination angle of the swash plate. This is different from a variable displacement swash plate compressor including a single-headed piston, in which the crank chamber serves as a control pressure chamber. For this purpose, the double-headed piston type swash plate compressor has a movable body connected to the swash plate so as to change the inclination angle of the swash plate. When the control gas is supplied to a control pressure chamber formed in the housing to change the pressu...

Claims

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Application Information

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IPC IPC(8): F04B27/08F04B27/14
CPCF04B27/12F04B27/1804F04B2027/1813F04B2027/1831F04B2027/1859F04B1/295F04B2027/1809
Inventor 太田雅树山本真也铃木隆容西井圭山崎佑介本田和也
Owner TOYOTA IND CORP