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Compressor

a compressor and compression tube technology, applied in the field of compressors, can solve the problems of insufficient improvement of limited effect of surrounding the suction, etc., and achieve the effects of preventing heat transfer, preventing temperature rise of the suction gas, and improving the volumetric efficiency of the compressor

Inactive Publication Date: 2005-03-10
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a compressor that prevents the temperature of the gas it sucks in from rising and improves its efficiency. The compressor has a housing, a suction passage, a compression unit, a drive unit, a suction piping, and a thermal insulating member. The thermal insulating member is placed between the housing and the suction piping to prevent heat transfer. It has a hole that connects the suction passage and the suction piping. This invention solves the problem of temperature rise and improves the compressor's performance.

Problems solved by technology

However, the effect is limited to surrounding of the suction chamber 102.
Thus, the volumetric efficiency of the compressor is not sufficiently improved.

Method used

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Embodiment Construction

[0026] A compressor 10 according to a first preferred embodiment of the present invention will now be described with reference to FIGS. 1 to 4.

[0027] In the first embodiment, the compressor 10 is a scroll type compressor for a fuel cell and an example thereof is shown in FIG. 1.

[0028] The compressor 10 shown in FIG. 1 mainly includes a compression unit, a drive unit and a drive motor unit, and feeds air to an oxygen electrode of the fuel cell.

[0029] The compression unit of the compressor 10 includes a fixed scroll member 11, a movable scroll member 12 and a compression chamber 13 which is defined by the fixed scroll member 11 and the movable scroll member 12.

[0030] The fixed scroll member 11 includes a fixed scroll base plate 11a of a disk-shape, a fixed scroll spiral wall 11b that extends from the fixed scroll base plate 11a and an outermost wall 11c. The fixed scroll base plate 11a and the outermost wall 11c form a fixed scroll housing 16.

[0031] The fixed scroll housing 16 pr...

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Abstract

A compressor includes a housing, a suction passage, a compression unit, a drive unit, a suction piping and a thermal insulating member. The housing forms a configuration of the compressor. The suction passage is formed in the housing for introducing a suction gas. The compression unit is provided in the housing for compressing the suction gas. The drive unit is provided in the housing for driving the compression unit. The suction piping is attached to the housing for connecting to the suction passage. The thermal insulating member is interposed between the housing and the suction piping for preventing heat transfer from the housing to the suction piping, and the thermal insulating member has a through hole which interconnects the suction passage and the suction piping.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a compressor, and in, particular to a compressor in which a suction piping for introducing a suction gas is connected to a suction passage formed in a housing. [0002] Japanese Unexamined Patent Publication No. 5-99141 shows this type of compressor. [0003] A compressor shown in FIG. 10 is an enclosed motor compressor. In the compressor, a refrigerant gas in low temperature and low pressure passes a communication tube 113 in a suction muffler 101, a suction chamber 102 and a suction port 103, and is introduced into a cylinder bore 105 by pushing a suction reed 104 away, and is compressed in the cylinder bore 105 to reach high temperature and high pressure. The compressed refrigerant gas passes a discharge port 106, and is discharged to a discharge chamber 107, and passes a discharge line and a discharge tube. [0004] The compressor provides therein a thermal insulating cap 109 made of Polybutyleneterephthalate whose th...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B39/06F01C21/10F04B27/10F04B39/12F04C18/02
CPCF01C21/10F04B27/1081F05C2251/048F04C18/0215F04C2230/00F04B39/123
Inventor NAKANE, YOSHIYUKINASUDA, TSUTOMU
Owner TOYOTA IND CORP