Method of manufacturing a heat exchange pipe

Details Method of manufacturing a heat exchange pipe Method of manufacturing a heat exchange pipe

1987-02-05

1989-03-07

Echols, P. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29157R, 165133, B21D 5302

Patent

active

048094153

ABSTRACT:
A heat-exchanging pipe having an inside surface formed with a plurality of ribs for enhancing turbulence of fluid flowing through the pipe. Each rib has an upstanding face portion formed on an upstream side of the rib and an inclined face portion descending from an upper end of the up-standing face portion in a downstream direction. The pipe is manufactured by roll forming a substantially flat piece of sheet metal material to form the ribs and then curling and joining ends of the sheet metal to form a substantially cylindrical pipe with the ribs on the inside surface thereof.

REFERENCES:
patent: 3762468 (1973-10-01), Newson et al.
patent: 3902552 (1975-09-01), McLain
patent: 4532789 (1985-08-01), Bruinsma et al.
patent: 4541261 (1985-09-01), Yanodori et al.

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