Patent
Fin-tube type heat exchanger
Takeo Tanaka,Toshio Hatada,Masaaki Itoh,Takao Senshu,Katsumata Naoto,Yoshihiko Mochizuki,Hirokiyo Terada,Minetoshi Izushi,Sato Minoru,Hiromi Tsuji,Nagai Makoto +10 more
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TLDR
A fin-tube type heat exchanger has parallel heat transfer tubes and a stack of a plurality of plate fins mounted on the tubes as mentioned in this paper, where heat exchange is conducted between a first fluid flowing through the tubes and another fluid flowing across each of the fins.Abstract:
A fin-tube type heat exchanger has parallel heat transfer tubes and a stack of a plurality of plate fins mounted on the tubes. Heat exchange is conducted between a first fluid flowing through the tubes and a second fluid flowing through the stack across each of the fins. Each fin has flat tube-mounting portions spaced in the longitudinal direction of the fin and formed with tube-mounting holes and a louver section disposed between each adjacent pair of tube-mounting portions. The louver section has elongated slats extending longitudinally of the fin and having side edges each spaced from an adjacent side edge of an adjacent slat. The slats are classified into two groups in respect of the cross-sectional shape. The slats of one group have generally flat cross-sections to reduce the resistance of the fin to the flow of the second fluid through the stack and are disposed in planes offset from the plane of the tube-mounting portions. The slats of the other group have V-shaped or inverted V-shaped cross-sections to increase stiffness of the fin in the longitudinal direction thereof.read more
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Patent
Heat exchanger, and air conditioner
Shun Yoshioka,Shuji Ikegami +1 more
TL;DR: In this paper, corrugated sheet fins are used as the fins of a heat exchanger for exchanging heat between a fluid, such as a refrigerant, and air, an object is to increase the surface areas of the fins while suppressing an increase in draft resistance, so as to attain the improvement of performance.
Patent
Heat exchangers with corrugated heat exchange elements of improved strength
TL;DR: In this article, the side walls are provided with a series of parallel slits between which one-sided or two-sided louvers are defined, and each of the louvers has first and second edges extending along an adjacent pair of slits, and at least one bend located between the edges.
Patent
Heat exchanger fin with efficient material utilization
TL;DR: In this paper, the leading and trailing edges are wave-shaped such that adjacent fins can interfit together, and the leading (4, 6) and trailing (48) edges of the fins (22, 22') are contoured to substantially conform to isotherms around the circulating fluid flowing within the tubes.
Patent
Fin tube heat exchanger
TL;DR: A plate fin heat exchanger has a group of fin collars arranged at predetermined intervals so that an air current flows between the respective fins and the group of tubes respectively inserted into and joined to the cylindrical fin collar which are formed in the fin group with a predetermined longitudinal pitch and lateral pitch as discussed by the authors.
Patent
High-V plate fin for a heat exchanger and method of manufacturing
TL;DR: In this paper, a heat transfer enhancement pattern for a heat exchanger coil assembly and a method of manufacturing the fin is provided. But the fin does not have a fin head and is not a fin body.
References
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Patent
Heat exchanger with fin
TL;DR: In this paper, the authors proposed a method to prevent the occurrence of choking due to frosting, to improve heat exchange capacity, and to enable increase of a heating operation continuous time by a method wherein a heat transfer pipe is arranged downstream of an air flow from the central part of a fin, a waveform cut rise is formed in the portion, on the upper stream side of a water flow, of the fin, and a slitform cut rises in the part, on downstream side of the water flow.
Patent
Louvered fin heat exchanger
TL;DR: In this article, a flat louver fin configuration for increased heat transfer efficiency and low air pressure drop is proposed, where flat louvers in a number of different planes each parallel to the direction of flow of air across the fin are formed as elongate strips extending generally in an area between adjacent tubes.
Patent
Heat exchange assembly and fin member therefor
TL;DR: A fin member for use in a heat exchange assembly comprising a piece of sheet-like material having at least one row of openings, each opening being provided to receive a conduit having a heat transfer medium flowing therethrough.
Patent
Locally inverted fin for an air conditioner
TL;DR: In this paper, two parallel local cuts are provided between each crest and trough, and the strip between each pair of cuts is formed into a louver having a substantial portion parallel to the closest surface of the adjacent inverted local crest on either side.
Patent
Cross-fin tube type heat exchanger
Toshio Hatada,Takao Senshu,Akira Arai,Fumio Harada,Atsushi Matsuzaki,Hajime Futawatari,Yutaka Imaizumi,Sumiyoshi Takeda +7 more
TL;DR: In this article, a cross-fin tube type heat exchanger with a large number of parallel fins and a plurality of heat transfer tubes extended through and fixed to the fins is described.