Ceramics heat exchanger and production method thereof

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(11)

EP 2 246 539 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	10.11.2010 Bulletin 2010/45

(43)	Date of publication A2:
	03.11.2010 Bulletin 2010/44

(21)	Application number: 10250810.8

(22)	Date of filing: 21.04.2010

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International Patent Classification (IPC):

F01N 3/28^(2006.01)
F28F 21/04^(2006.01)
F01N 3/02^(2006.01)

F28F 7/02^(2006.01)
F28D 7/00^(2006.01)

(84)	Designated Contracting States:
	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 SE SI SK SM TR
	Designated Extension States:
	AL BA ME RS

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Priority:

23.04.2009 JP 2009105246
16.04.2010 JP 2010095149

(71)	Applicant: NGK Insulators, Ltd.
	Nagoya-City, Aichi Pref. 467-8530 (JP)

(72)	Inventors:
	Takahashi, Michio Nagoya City Aichi-ken 47-8530 (JP) Mizuno, Hiroshi Nagoya City Aichi-ken 47-8530 (JP)

(74)	Representative: Paget, Hugh Charles Edward et al
	Mewburn Ellis LLP 33 Gutter Lane London EC2V 8AS London EC2V 8AS (GB)

(54)	Ceramics heat exchanger and production method thereof

(57) There is provided a heat exchanger having high heat exchange efficiency in comparison with conventional heat exchange elements, heat exchangers, and the like and realizing miniaturization, weight saving, and cost reduction and a production method thereof. In a heat exchange element 1, first fluid circulation portions 5 having a honeycomb structure having a plurality of cells separated by ceramic partition walls 4, extending through in an axial direction from one end face 2 to the other end face 2, and allowing a heated medium as a first fluid to flow therethrough and second fluid circulation portions 6 being separated by ceramic partition walls 4, extending in the direction perpendicular to the axial direction, allowing a second fluid to flow therethrough, transferring heat to a medium to be heated as the second fluid are alternately formed as a unit. The cells 3 on the first fluid circulation portion 5 side are smaller than the cells 3 on the second fluid circulation portion 6 side, and the partition walls have a density of 0.5 to 5 g/cm³ and a thermal conductivity of 10 to 300 W/mK.

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