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Patent Searching and Data


Title:
REFRIGERATION DEVICE
Document Type and Number:
Japanese Patent JP2009210248
Kind Code:
A
Abstract:

To reduce a loss of energy caused by a pressure rise of oil to achieve energy-saving in a refrigeration device, in the refrigerating device performing a refrigerating cycle by circulating a refrigerant.

A refrigeration circuit 11 has an oil separator 60 for separating oil from a high-pressure refrigerant, and a recovering mechanism 40 for recovering the energy of the oil after separation. Power recovered by the recovering mechanism 40 is utilized as a power source of a compressing mechanism 20. Furthermore, the oil separated by the oil separator 60 is cooled by an oil cooler 80, and then supplied to the compressing mechanism 20. In a compression stroke of the compressing mechanism 20, the refrigerant is compressed to approximate an isothermal line, and compression power is reduced.


Inventors:
OKAMOTO TETSUYA
KOSHO KAZUHIRO
KONO TAKAYUKI
KASAHARA SHINICHI
OKAMOTO MASAKAZU
YAMAGUCHI TAKAHIRO
MORIWAKI MICHIO
FURUI HIDEJI
Application Number:
JP2008163246A
Publication Date:
September 17, 2009
Filing Date:
June 23, 2008
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F25B1/00; F25B11/02; F25B43/02
Domestic Patent References:
JPH04203764A1992-07-24
JP2001141315A2001-05-25
JP2004053199A2004-02-19
JPS63231138A1988-09-27
JP2003322421A2003-11-14
JP2004150749A2004-05-27
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura