Title:
FREEZING APPARATUS, AND EXPANDER
Document Type and Number:
WIPO Patent Application WO/2008/072575
Kind Code:
A1
Abstract:
Provided is a freezing apparatus, which is constituted to make the inlet quantity of a coolant of an expansion mechanism variable while recovering the energy of a high-pressure coolant as a power to the maximum by the expansion mechanism. The expansion mechanism (50) is equipped with two rotary mechanism units (70 and 80) having displacements made different from each other. These rotary mechanism units are connected in series, and the rotary mechanism unit of the smaller displacement has two inlet ports (55 and 56) formed in its cylinder (71). Inlet pipes (24 and 27), as connected to the inlet ports (55 and 56), are equipped with a front throttle valve (60) and a switch valve (61). A bypass pipe (65) for bypassing the expansion mechanism (50) is equipped with a bypass valve (66). These valves (60, 61 and 66) are controlled to attain a balance between the coolant circulation rate of the expansion mechanism (50) and the coolant circulation rate of a compression mechanism (40).
Inventors:
SAKITANI, Katsumi (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
鉾谷 克己 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
OKAMOTO, Masakazu (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
岡本 昌和 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
鉾谷 克己 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
OKAMOTO, Masakazu (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
岡本 昌和 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
Application Number:
JP2007/073703
Publication Date:
June 19, 2008
Filing Date:
December 07, 2007
Export Citation:
Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Bldg, 4-12 Nakazaki-nishi 2-chome,Kita-ku, Osaka-sh, Osaka 23, 5308323, JP)
ダイキン工業株式会社 (〒23 大阪府大阪市北区中崎西２丁目４番１２号 梅田センタービル Osaka, 5308323, JP)
SAKITANI, Katsumi (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
鉾谷 克己 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
OKAMOTO, Masakazu (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
ダイキン工業株式会社 (〒23 大阪府大阪市北区中崎西２丁目４番１２号 梅田センタービル Osaka, 5308323, JP)
SAKITANI, Katsumi (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
鉾谷 克己 (〒11 大阪府堺市北区金岡町１３０４番地 ダイキン工業株式会社 堺製作所 金岡工場内 Osaka, 5918511, JP)
OKAMOTO, Masakazu (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 5918511, JP)
International Classes:
F01C21/18; F01C1/02; F01C1/356; F01C11/00; F01C13/04; F01C20/18; F01C20/24; F25B1/00; F25B11/02
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (Osaka-Marubeni Bldg, 5-7 Hommachi 2-chome,Chuo-ku, Osaka-sh, Osaka 53, 5410053, JP)
Download PDF:
Previous Patent: AC MOTOR CONTROL DEVICE
Next Patent: COMMUNICATION CONTINUING METHOD AND COMMUNICATION TERMINAL DEVICE USED IN THE METHOD
Next Patent: COMMUNICATION CONTINUING METHOD AND COMMUNICATION TERMINAL DEVICE USED IN THE METHOD