Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Patent
1999-06-07
2000-10-31
Crane, Daniel C.
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
29890054, 72180, 723796, B23P 1526, B21D 5304, B21D 1304
Patent
active
061383546
ABSTRACT:
A metallic corrugated plate applying to a cooling inner fin of a heat exchanger, wherein a bending angle .THETA. of an end bent ridge portion is smaller than bending angle .theta. of the other bent ridge portions. Thus, in case the bending angle .THETA. becomes large by a resilient force after forming the bent ridge portions, preventing a bending rigidity of the end bent ridge portion in the spreading direction from being reduced is possible. Accordingly, preventing the inner fin from being warped from substantially the center ridge of the bent ridge portion is attained.
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Abe Yasuo
Kobayashi Hisashi
Takeuchi Toshihide
Crane Daniel C.
Denso Corporation
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