Heat exchange – Radiator core type – Side-by-side tubes traversing fin means
Patent
1989-10-02
1991-11-05
Ford, John
Heat exchange
Radiator core type
Side-by-side tubes traversing fin means
165181, F28D 104
Patent
active
050624750
ABSTRACT:
The invention relates to an improved fin and tube type heat exchanger wherein thin, heat-conducting fins act as a secondary heat-exchange surface for a heat-conducting medium flowing through the tubes. The thin fin plates substantially lie in a plane perpendicular to the air flow and have angled louvers formed therein. The angled louvers have a short leg and a long leg, with the short leg preferably in the fin plane with the long leg bent therefrom. The unequal length legs permit a larger condensate gap between the trailing edge of one louver and the leading edge of the next louver. With the combination of an angled louver plus the short leg lying in the fin plane, a substantially strong fin is provided even with a thin fin plate. The combination of the short leg lying in the direction of air flow, with the longer leg being inclined thereto, allows a high heat transfer coefficient at the leading edge, while the angled portion behind the leading edge generates a turbulent flow to reduce boundary layer growth. The proper orientation of the angled louvers provides a symmetrical fin which simplifies the construction operations and air flow orientation use and permits equal sized large gaps between the trailing edges and leading edges of the louvers.
REFERENCES:
patent: 3265127 (1966-08-01), Nickol et al.
patent: 3810509 (1974-05-01), Kun
patent: 3916989 (1975-11-01), Harada et al.
patent: 4300629 (1981-11-01), Hatada et al.
patent: 4365667 (1982-12-01), Hatada et al.
patent: 4434844 (1984-03-01), Sakitani et al.
patent: 4469167 (1984-09-01), Itoh et al.
patent: 4480684 (1984-11-01), Onishi et al.
patent: 4550776 (1985-11-01), Lu
patent: 4614230 (1986-09-01), Sakuma et al.
patent: 4691768 (1987-09-01), Obosu
patent: 4705105 (1987-11-01), Cur
patent: 4723599 (1988-02-01), Hanson
patent: 4791984 (1988-12-01), Hatada et al.
Bemisderfer Charles H.
Wanner James A.
Ford John
Sundstrand Heat Transfer, Inc.
Wanner James A.
LandOfFree
Chevron lanced fin design with unequal leg lengths for a heat ex does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chevron lanced fin design with unequal leg lengths for a heat ex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chevron lanced fin design with unequal leg lengths for a heat ex will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-493353