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Vane type compressor

A compressor and vane technology, applied in the field of vane compressors, can solve problems such as increased noise

Inactive Publication Date: 2011-08-31
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When such lubricating oil remains in the discharge space, the volume of the discharge space, which significantly contributes to cushioning discharge fluctuations, decreases so that noise due to such discharge fluctuations may increase

Method used

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  • Vane type compressor
  • Vane type compressor
  • Vane type compressor

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] The following will refer to Figures 1 to 4 A vane compressor according to a first embodiment of the present invention will be described. Note that in figure 1 The left-hand and right-hand sides seen in , are the front and rear sides of the vane compressor, respectively. Also note that when installed in place, the figure 1 The upper and lower sides seen in are the upper and lower sides of the vane compressor, respectively, and the longitudinal direction and vertical direction of the vane compressor are in figure 1 are represented by arrows Y1 and Y2 respectively.

[0015] refer to figure 1 , the vane compressor 10 has a housing assembly H (hereinafter simply referred to as housing H) formed of a rear housing 11 and a front housing 12 connected to a front end of the rear housing 11 . A cylinder 13 is accommodated in the rear housing 11, and the inner peripheral surface of the cylinder 13 has an elliptical cross-section (see figure 2 ).

[0016] In the rear housin...

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PUM

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Abstract

The present invention relates to a compressor comprising the following components: a housing; a cylinder; a rotor which is provided with vanes that form a compression chamber in the cylinder; and a pair of side plates which are connected with the end of the cylinder for forming a discharging space. One side plate in the pair of side plates cooperates with the inner periphery of the housing for forming a discharging chamber at the side of one side plate in the pair of the side plates opposite to the cylinder, and furthermore a discharging channel which has the discharging space connected with the discharging chamber penetrates the side plate. The refrigerant gas is discharged from the compression chamber to the discharging chamber through the discharging space and the discharging channel. The compressor is characterized by furthermore comprising an oil return channel which is connected with the discharging space and is connected with a low pressure area with pressure lower than the pressure in the discharging space at the position lower than the place wherein the discharging channel is connected with the discharging space.

Description

technical field [0001] The invention relates to a vane compressor having a plurality of vanes forming a compression chamber in a cylinder of the compressor. Background technique [0002] A vane compressor is disclosed in Japanese Unexamined Patent Application Laid-Open No. 7-12072. The compressor includes a housing, a cylinder accommodated in the housing, a rotor accommodated in the cylinder, and a pair of front and rear side plates connected to respective ends of the cylinder. The rotor has a plurality of vanes that form compression chambers in the cylinder. A discharge space is formed in the housing, which is defined by the outer peripheral surface of the cylinder, the inner peripheral surface of the housing, and the end surfaces of the respective side plates. The refrigerant gas compressed in the compression chamber is discharged into the discharge space. The cylinder block has a discharge port through which the compression chamber communicates with the discharge space...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/344F04C29/02
Inventor 小林和男佐藤真一犬饲均
Owner TOYOTA IND CORP