Composite heat exchanger tube

Details Composite heat exchanger tube Composite heat exchanger tube

1988-09-30

1991-01-08

Schwadron, Martin P.

Heat exchange

With agitating or stirring structure

165177, 1651341, 138 38, F28F 1312

Patent

active

049827847

ABSTRACT:
A composite heat exchanger tube includes a turbulence promoting liner and an outer tube telescoped about the liner and joined thereto. A method for fabricating a composite tube for a heat exchanger includes the steps of feeding tube stock and liner stock into a tube mill, superimposing liner stock upon the tube stock and simultaneously forming the tube stock into an outer tube while forming the liner stock into a lining within the tube. The tube is then welded or brazed longitudinally and the liner is brazed to the outer tube.

REFERENCES:
patent: 813918 (1906-02-01), Schmitz
patent: 1881610 (1932-10-01), Hyde
patent: 2096272 (1937-10-01), Young
patent: 2480706 (1949-08-01), Brinen
patent: 2930405 (1960-03-01), Welsh
patent: 3154141 (1964-10-01), Huet
patent: 3267563 (1966-08-01), Seaton
patent: 3734135 (1973-05-01), Mosier
patent: 3809155 (1974-05-01), Anthony et al.
patent: 3875997 (1975-04-01), Newson et al.
patent: 3906605 (1975-09-01), McLain
patent: 4470452 (1984-09-01), Rhodes
patent: 4878925 (1989-11-01), Kojima

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