IN-GROUND HEAT EXCHANGER AND AIR CONDITIONING SYSTEM EQUIPPED WITH SAME

WIPO Patent Application WO/2010/070858

A1

A heat transfer pipe (12) is formed to extend from the apex of an outer pipe (11) and to bend at the bottom of said outer pipe (11), returning to said apex, and is disposed such that at least a portion contacts the inner circumferential surface of the aforementioned outer pipe (11). In addition, the aforementioned heat transfer pipe (12) is configured such that a cooling medium can flow in opposite directions therein for the heating operation and the cooling operation.

ASAI, Hideaki (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 〒5918511, JP)
浅井英明 (〒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)
KAWABATA, Katsuhiro (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 〒5918511, JP)

JP2009/006815

June 24, 2010

December 11, 2009

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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)
ASAI, Hideaki (Sakai Plant DAIKIN INDUSTRIES, LTD., 1304, Kanaoka-cho, Kita-ku, Sakai-sh, Osaka 11, 〒5918511, JP)
浅井英明 (〒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)

F24J3/08; F24F3/00; F28D21/00

MAEDA, Hiroshi et al. (Osaka-Marubeni Bldg, 5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)

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