HEAT EXCHANGER

WIPO Patent Application WO/1997/006395

A1

First heat transfer plates (S1) and second heat transfer plates (S2) are folded, respectively, along crest folding lines (L1) and root folding lines (L2) in a zigzag fashion and what are so folded are jointed to the inner circumferential surface of an outer casing (6) and the outer circumferential surface of an inner casing (7) in such a manner that the first heat transfer plates and second heat transfer plates are disposed in a radial direction, whereby a combustion gas passageway and an air passageway are alternately formed in a circumferential direction. One ends of the combustion gas passageway and air passageway are cut in a crest fashion, and an inlet (11) for the combustion gas passageway and an outlet (16) for the air passageway are formed by closing one side and the other side thereof. An outlet for the combustion gas passageway and an inlet for the air passageway are formed, respectively, at the other ends of the combustion gas passageway and the air passageway in a similar manner, thereby making it possible to provide a heat exchanger that is simple in construction and easy to fabricate and which can restrain the loss in pressure due to the curved flow passageways to a minimum level.

ENDOU TSUNEO (JP)
TAKAHASHI TSUTOMU (JP)
YANAI HIDEYUKI (JP)
KAWAMURA TOSHIKI (JP)
WAKAYAMA TOKIYUKI (JP)

PCT/JP1996/002115

February 20, 1997

July 26, 1996

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HONDA MOTOR CO LTD (JP)
ENDOU TSUNEO (JP)
TAKAHASHI TSUTOMU (JP)
YANAI HIDEYUKI (JP)
KAWAMURA TOSHIKI (JP)
WAKAYAMA TOKIYUKI (JP)

F28D9/00; F28F3/04; (IPC1-7): F28D9/00; F28F3/08

JPS57500945A	1982-05-27
JPS4844530B1	1973-12-25
JPS5133293B2	1976-09-18
JPS572982A	1982-01-08
JPS572983A	1982-01-08
JPS56149586A	1981-11-19
JPS56149583A	1981-11-19
JPS5840116A	1983-03-09

See also references of EP 0866299A4

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