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Title:
DISPLACEMENT COMPRESSOR
Document Type and Number:
Japanese Patent JP2006183499
Kind Code:
A
Abstract:

To surely start a displacement compressor without enlarging an outside diameter dimension of the compressor while employing a self-starting synchronous motor exhibiting high energy efficiency.

The displacement compressor is provided with the self-starting synchronous motor 5 starting as an induction electric motor and pulling into a synchronous operation near a synchronous engine speed, a compression part having a compression chamber 11 for compressing an operation fluid, and a sealed container 4 for housing the self-starting synchronous motor 5 and the compression part. In the displacement compressor, a starting load reduction means 21 for reducing the load of the compression part at the time of starting is positioned in the sealed container 4, and is arranged in the compression part.


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Inventors:
TSUCHIYA TAKESHI
YANASE YUICHI
FUJIMURA KAZUYUKI
MATSUNAGA MUTSUNORI
NOZAWA SHIGEKAZU
TOJO KENJI
OHARAGI HARUO
KIKUCHI SATOSHI
KOSOKABE HIROKATSU
Application Number:
JP2004375610A
Publication Date:
July 13, 2006
Filing Date:
December 27, 2004
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
F04B49/06; F04C18/02; F04C18/16; F04C18/356; F04C28/06
Domestic Patent References:
JP2001003864A2001-01-09
JP2003035289A2003-02-07
JPH11303777A1999-11-02
JP2000087882A2000-03-28
JPH0443883A1992-02-13
JPS5530945U1980-02-28
JPS62111188A1987-05-22
Attorney, Agent or Firm:
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki