Heat exchanger fin having slits and louvers formed therein

Details Heat exchanger fin having slits and louvers formed therein Heat exchanger fin having slits and louvers formed therein

1996-04-10

1997-11-11

Leo, Leonard R.

Heat exchange

Radiator core type

Side-by-side tubes traversing fin means

165181, F28D 104, F28F 132

Patent

active

056853670

ABSTRACT:
A heat exchanger includes a plurality of spaced apart parallel fins through which pipes extend. A fluid flow is passed between the fins in heat exchanging relationship with respect to a heat exchange medium conducted through the pipes. Each fin includes groups of slits formed therein for converting the fluid flow to a turbulent flow. The slits of each group are arranged in a radiant pattern around a respective pipe. Each fin is also formed with vertical louvers disposed upstream and downstream of each pipe with reference to the direction of the fluid flow. Each louver is formed by a bent portion of the fin which is slanted with respect to the plane of the fin to redirect fluid flow from one side of the fin to the other side.

REFERENCES:
patent: 4550776 (1985-11-01), Lu
patent: 4832117 (1989-05-01), Kato et al.

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