Nishiyodo Air Conditioner Co., Ltd.

Masahira Tada

Motoshi Yoshihara

Masami Ogata

An apparatus for producing a wire fin tube for heat transfer which comprises a wire fin forming station, a fin guiding station, a wire fin delivery station, a tube feeding device and a welding device, whereby a plurality of wires are simultaneously shaped into wavy wires which in turn are wound around a tube in the form of plural helices. The fin guiding station is characterized by having at least two different paths of different lengths whereby the wavy wires are wound around the tube in at least two different phases.

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Osaka, Japan

Masahira Tada