Heat exchanger cooling fin with varying louver angle

Details Heat exchanger cooling fin with varying louver angle Heat exchanger cooling fin with varying louver angle

1997-01-16

1998-03-24

Rivell, John

Heat exchange

Radiator core type

Deformed sheet forms passages between side-by-side tube means

165151, 165181, F28D 102

Patent

active

057302146

ABSTRACT:
A corrugated cooling fin has a louver pattern in which the louvers in a first, lead set, successively increase in tilt angle, moving in the direction of air flow. Matching louvers in a trailing set successively decrease in tilt angle correspondingly. As a consequence, air flow is turned through the lead set, and turned back through the trailing set, in a successive, incremental fashion. The deflected air flow curve is steeper and higher, and the heat rejection rate for the fin increases enough to compensate for an increase in pressure drop across the fin.

REFERENCES:
patent: 3003749 (1961-10-01), Morse
patent: 3250325 (1966-05-01), Rhodes et al.
patent: 3265127 (1966-08-01), Nickol et al.
patent: 3993125 (1976-11-01), Rhodes
patent: 4328861 (1982-05-01), Cheong et al.
patent: 4593756 (1986-06-01), Itoh et al.
patent: 5035052 (1991-07-01), Suzuki et al.
patent: 5099914 (1992-03-01), Reifel
patent: 5176020 (1993-01-01), Maruo et al.
patent: 5289874 (1994-03-01), Kadle et al.
patent: 5501270 (1996-03-01), Young et al.
patent: 5669438 (1997-09-01), Beales et al.

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