Heat exchange – Radiator core type – Side-by-side tubes traversing fin means
Patent
1991-03-20
1992-05-05
Ford, John K.
Heat exchange
Radiator core type
Side-by-side tubes traversing fin means
165181, 165182, F28D 104, F28F 132
Patent
active
051099195
ABSTRACT:
A fin-and-tube heat exchanger comprises a fin plate, a heat exchanger tube having portions extending through the fin plate, a plurality of fin collars formed in the plate, wherein louvers are provided so as to surround the tube portions except areas nearest to the collars, the louvers are in parallel with one another and project from alternately both surfaces of the plate, the louver which is located at the trailing edge side and at a position near to a central line of the tube bank is longitudinally extended so as to be along the collars and has opposite rising ends extending from the plate slanted toward the corresponding tube portions at an angle of 35 deg or below to the flow direction of the fluid, and the louver which is located at a position nearer to the trailing edge is also longitudinally extended and has opposite rising ends extending from the plate slanted toward the corresponding tube portions at an angle of 35 deg or above to the flow direction of the fluid so that the angle between the rising ends slanted at an angle of 35 deg or above and the rising ends slanted at an angle of 35 or below is 35 deg or below.
REFERENCES:
patent: 3135320 (1964-06-01), Forgo
patent: 3916989 (1975-11-01), Harada et al.
patent: 4434844 (1984-03-01), Sakitani et al.
patent: 4550776 (1985-11-01), Lu
patent: 4709753 (1987-12-01), Reifel
patent: 4723599 (1988-02-01), Hanson
patent: 4832117 (1989-05-01), Kato et al.
"First report on flow pattern and heat transfer characteristics of louver fin, B303," presented at the 19th Heat transfer symposium.
Aoki Katsuyuki
Hujii Masao
Morinushi Ken
Sakuma Kiyoshi
Tezuka Tomohumi
Ford John K.
Mitsubishi Denki & Kabushiki Kaisha
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