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Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor

A technology of refrigerant and compressor, applied in the field of refrigerant suction mechanism, can solve the problems of reducing the volumetric efficiency of the compressor and the like

Inactive Publication Date: 2003-07-30
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of leakage reduces the volumetric efficiency of the compressor

Method used

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  • Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor
  • Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor
  • Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor

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Experimental program
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Effect test

Embodiment Construction

[0026] refer to Figure 1-5 The first embodiment of the present invention will be described. The first embodiment relates to a fixed displacement compressor having a double-headed piston.

[0027] Such as figure 1 As shown, a front housing 13 and a rear housing 14 are respectively connected to the cylinder assemblies 11 and 12 connected to each other. A discharge chamber 131 is defined within the front case 13 . A discharge chamber 141 and a suction chamber 142 are defined in the rear housing 14 .

[0028] At the front of the compressor, a valve disc 15 , a valve forming disc 16 , and a retainer forming disc 17 are interposed between the cylinder assembly 11 and the front housing 13 . The valve disc 18 , the valve forming disc 19 and the retainer forming disc 20 are interposed between the cylinder assembly 12 and the rear housing 14 . Discharge ports 151 and 181 are formed on valve discs 15 and 18, respectively. Discharge valves 161 and 191 are formed on the valve formin...

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PUM

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Abstract

A refrigeration suction mechanism used in a piston type compressor. The compressor comprises a rotary shaft, a plurality of pistons, a compression chamber and a rotary valve. The pistons are arranged in a circumference of the rotary shaft to reciprocate in conjunction with a rotating motion of the rotary shaft through a cam member. An end surface of one of said pistons reciprocates in the compression chamber. The rotary valve includes an introducing passage which allows refrigerant to flow into the compression mechanism through an end opened on an outer surface of the rotary valve. The refrigeration suction mechanism comprises a suction passage and a reactive force transmitting mechanism. The suction passage communicates with the cylinder bore and intermittently communicates with the end of the introducing passage in conjunction with a rotating motion of the rotary valve. The reactive force transmitting mechanism transmits a reactive force applied on one of the pistons that is in a discharging stroke so as to press the rotary valve against a mouth of the suction passage which communicates with a cylinder bore that contains the piston in the discharging stroke.

Description

technical field [0001] The present invention relates to a refrigerant suction mechanism for a piston type compressor. The refrigerant suction mechanism of the present invention has a rotary valve having a refrigerant introduction passage communicating with a passage extending through a rotary shaft to introduce refrigerant into a compression chamber in a cylinder bore. Background technique [0002] The piston type compressor has a plurality of pistons, and each piston is respectively arranged in a cylinder hole on the circumference of a rotary shaft, so that the rotation of the rotary shaft is converted into the reciprocating linear motion of the piston through the cam. [0003] The piston type compressors disclosed in Japanese Patent Laid-Open Publication Nos. JP5-113174 and 7-63165 have rotary valves for introducing refrigerant into cylinder bores. The variable displacement swash plate type compressor disclosed in Japanese Patent Laid-Open Publication No. JP5-113174 has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08F04B27/10F04B27/12
CPCF04B27/1018F04B27/12
Inventor 樽谷知二太田雅树神德哲行川村尚登田中洋彦佐伯晓生近藤淳
Owner TOYOTA IND CORP