Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1991-10-28
1993-02-02
Flanigan, Allen J.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
165149, 180 684, F28F 900
Patent
active
051831031
ABSTRACT:
A heat exchanger comprises a plurality of flat tubes, a pair of hollow headers connected to both ends of each of the flat tubes in fluid communication with them, and at least one fastener secured to the headers. The fastener comprises at least one self-retainable embracing portion capable of resiliently engaging the exterior of the header to keep the fastener in place prior to brazing the components of the exchanger together. The fastener can be temporarily connected, without the aid of any special tools, on a heat exchanger body before brazing with a "one-shot" procedure, thus rendering easy the manufacture of the heat exchanger. Since special tools are unnecessary, a greater number of temporarily assembled heat exchangers can be accommodated in one oven, thus improving, to a remarkable degree, the productivity in manufacture of the heat exchanger.
REFERENCES:
patent: 2331634 (1943-10-01), Stempel
patent: 4569390 (1986-02-01), Knowlton et al.
patent: 5069275 (1991-12-01), Suzuki et al.
Flanigan Allen J.
Showa Aluminum Kabushiki Kaisha
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