Heat exchange – Tubular structure – With discrete heat transfer means
Patent
1995-04-04
1998-06-23
Flanigan, Allen J.
Heat exchange
Tubular structure
With discrete heat transfer means
165171, 165DIG500, F28F 132, F28F 136
Patent
active
057691576
ABSTRACT:
A heat exchanger for an air conditioner comprises a plurality of heat-transfer tubes arranged in parallel to each other at predetermined intervals, and heat-transfer fins formed by helically winding a plurality of fine wires around the plurality of heat-transfer tubes. Preferably, the heat-transfer tubes are divided into groups of two adjacent heat-transfer tubes (1a, 1b), (1b, 1c), (1c, 1d), . . . , and at least one fine wire fin is wound helically around the two adjacent heat-transfer tubes of each group so that the fine wire fin does not cross other portions of the fine wire fin as viewed along a direction perpendicular to a plane including the axes of the plurality of heat-transfer tubes. When fabricating the heat exchanger, at least either the outer circumferences of the heat-transfer tubes or the outer circumferences of the fine wires are coated with a metal film formed by plating, and then the heat-transfer tubes and the fine wires are interlaced to form a heat exchanging structure. Then, the heat exchanging structure is heated to the melting point of the metal film so that the metal film is melted and the heat-transfer tubes and the fine wires are bonded together by the molten metal film.
REFERENCES:
patent: 2469635 (1949-05-01), Dalin et al.
patent: 2620170 (1952-12-01), Brickman
patent: 4056143 (1977-11-01), Martin
European Search Report for EP 95 104993.
Patent Abstracts of Japan, vol. 010, No. 357 (M-540), 2 Dec. 1986 & JP 61 153388 A, (Kawasaki Steel Corp.) 12 Jul. 1986.
Gotoh Takashi
Ikejima Kaoru
Takeshita Michimasa
Yoshida Takayuki
Yumikura Tsuneo
Flanigan Allen J.
Mitsubishi Denki & Kabushiki Kaisha
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