Method of making a segmented externally finned heat exchanger tu

Details Method of making a segmented externally finned heat exchanger tu Method of making a segmented externally finned heat exchanger tu

1984-08-16

1986-04-15

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291573A, 291573B, 165184, B21D 5302, B21C 3722, B23P 1526, F28F 136

Patent

active

045818002

ABSTRACT:
A method of making a segmented externally finned tube with at least one fin free area for use in a heat exchanger. The method includes the steps of providing a tape of thermally conductive material with spaced reliefs along one longitudinal edge thereof and slitting the tape from that edge partially across its length between the reliefs. The slit portions of the tape are bent to form an angle with respect to the remainder of the tape which is then used to helically wrap a thermally conductive tube. The area of the reliefs provide fin free areas.

REFERENCES:
patent: 2372795 (1945-04-01), Rodeck
patent: 3225424 (1965-12-01), Wiley
patent: 3288209 (1966-11-01), Wall et al.
patent: 3362058 (1968-01-01), Morris et al.
patent: 4143710 (1979-03-01), La Porte et al.
patent: 4184544 (1980-01-01), Ullmer
patent: 4236578 (1980-12-01), Kreith et al.
patent: 4336642 (1982-06-01), Engelberts
patent: 4416223 (1983-11-01), Hashizume

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