Heat-transfer tubes with grooved inner surface

Details Heat-transfer tubes with grooved inner surface Heat-transfer tubes with grooved inner surface

1984-12-21

1987-04-21

Cline, William R.

Heat exchange

With coated, roughened or polished surface

165184, F28F 140

Patent

active

046588922

ABSTRACT:
A heat-transfer tube with a grooved inner surface adapted to phase-transition for fluid flowing inside the tube disposed in a heat exchanger is disclosed. This tube can achieve the reduction in the weight per unit length, improvements in workability and characteristics of the tube by limiting the cross-sectional area of respective grooved section and the shape of the ridge defining the grooved section.

REFERENCES:
patent: 2279548 (1942-04-01), Bailey
patent: 3779312 (1973-12-01), Withers, Jr. et al.
patent: 4044797 (1977-08-01), Fujie et al.
patent: 4118944 (1978-10-01), Lord et al.

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