(19)
(11) EP 2 351 979 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.10.2012 Bulletin 2012/44

(43) Date of publication A2:
03.08.2011 Bulletin 2011/31

(21) Application number: 11150572.3

(22) Date of filing: 11.01.2011
(51) International Patent Classification (IPC): 
F28D 7/10(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 12.01.2010 KR 20100002865

(71) Applicant: LG Electronics, Inc.
Seoul 150-721 (KR)

(72) Inventors:
  • Hongseong, Kim
    153-801, Seoul (KR)
  • Sangyeul, Lee
    153-801, Seoul (KR)
  • Yongcheol, Sa
    153-801, Seoul (KR)
  • Hanchoon, Lee
    153-801, Seoul (KR)

(74) Representative: Vossius & Partner 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) Heat exchanger comprising three concentric tubes


(57) A heat exchanger (800) is provided which may include a first heat exchange tube (100) in a pipe shape, including a first fluid inlet (102), into which a first fluid may be introduced and flow, and a first fluid outlet (105), through which the first fluid may be discharged; a second heat exchange tube (200) that passes through the first heat exchange tube (100), including a second fluid inlet (202), into which a second fluid may be introduced and flow, and a second fluid outlet (205), through which the second fluid may be discharged; and a third heat exchange tube (300) that includes a third fluid inlet (302), into which the second fluid discharged through the second fluid outlet (205) may be introduced and flow, and a third fluid outlet (305), through which the second fluid may be discharged, the third heat exchange tube (300) enclosing an external surface of the first heat exchange tube (100).










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Search report