Fin-tube type heat exchanger

Details Fin-tube type heat exchanger Fin-tube type heat exchanger

1992-12-08

1994-11-01

Rivell, John

Heat exchange

Radiator core type

Side-by-side tubes traversing fin means

165181, F28D 104

Patent

active

053600606

ABSTRACT:
A fin-tube type heat exchanger has parallel heat transfer tubes and a stack of a plurality of plate fins mounted on the tubes. Heat exchange is conducted between a first fluid flowing through the tubes and a second fluid flowing through the stack across each of the fins. Each fin has flat tube-mounting portions spaced in the longitudinal direction of the fin and formed with tube-mounting holes and a louver section disposed between each adjacent pair of tube-mounting portions. The louver section has elongated slats extending longitudinally of the fin and having side edges each spaced from an adjacent side edge of an adjacent slat. The slats are classified into two groups in respect of the cross-sectional shape. The slats of one group have generally flat cross-sections to reduce the resistance of the fin to the flow of the second fluid through the stack and are disposed in planes offset from the plane of the tube-mounting portions. The slats of the other group have V-shaped or inverted V-shaped cross-sections to increase stiffness of the fin in the longitudinal direction thereof.

REFERENCES:
patent: 3902551 (1975-09-01), Lim et al.
patent: 4300629 (1981-11-01), Hatada et al.
patent: 4365667 (1982-12-01), Hatada et al.
patent: 4593756 (1986-06-01), Itoh et al.
patent: 4691767 (1987-09-01), Tanaka et al.
patent: 4705105 (1987-11-01), Cur
patent: 4715437 (1987-12-01), Tanaka et al.
patent: 4791984 (1988-12-01), Hatada et al.
patent: 5042576 (1991-08-01), Broadbent

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