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Title:
IN-GROUND HEAT EXCHANGER AND AIR CONDITIONING SYSTEM EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2010/070856
Kind Code:
A1
Abstract:
An outer pipe (11), which is buried in the ground, is provided, and a heat transfer pipe (12), in the interior of which flows a fluid which is to undergo heat exchange, is inserted into said outer pipe (11). In addition, a heat carrier (13) is enclosed in the outer pipe (11). At least a portion of the heat transfer pipe (12) is configured by an oblate pipe (12e, 14) or by an oblate body (12e, …) comprised of a compound pipe (15) for which multiple pipes (15a) are aligned in an oblate shape; in addition, the oblate side of said oblate body (12e, …) contacts the inner circumferential face of the outer pipe (11).

Inventors:
ASAI HIDEAKI (JP)
KAWABATA KATSUHIRO (JP)
TANIMOTO KEISUKE (JP)
ZHAI HUI (JP)
Application Number:
PCT/JP2009/006811
Publication Date:
June 24, 2010
Filing Date:
December 11, 2009
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
ASAI HIDEAKI (JP)
KAWABATA KATSUHIRO (JP)
TANIMOTO KEISUKE (JP)
ZHAI HUI (JP)
International Classes:
F24J3/08; F24F3/00; F28D21/00
Domestic Patent References:
WO2004111559A12004-12-23
Foreign References:
JP2005048972A2005-02-24
JP2004332969A2004-11-25
JP2006234254A2006-09-07
JP2003014385A2003-01-15
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (JP)
Hiroshi Maeda (JP)
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