Heat transfer tube

Details Heat transfer tube Heat transfer tube

1994-07-11

1995-10-17

Flanigan, Allen J.

Heat exchange

With coated, roughened or polished surface

165184, F28F 1302

Patent

active

054581915

ABSTRACT:
A heat transfer tube having an internal surface that enhances the heat transfer performance of the tube. Helical ribs project from the internal surface of the tube. The ribs have a pattern of parallel notches intersecting and impressed into them at a small angle of inclination with respect to the longitudinal axis. The pattern of ribs and notches increase the total internal surface area of the tube and also promote conditions for the flow of refrigerant within the tube that increase heat transfer performance. The tube is suitable for use in both refrigerant evaporators and condensers.

REFERENCES:
patent: 3273599 (1966-08-01), Heeren
patent: 3326283 (1967-06-01), Ware
patent: 3861462 (1975-01-01), McLain
patent: 3885622 (1975-05-01), McLain
patent: 4245695 (1981-01-01), Fujikake
patent: 4658892 (1987-04-01), Shinohara et al.
patent: 4715436 (1987-12-01), Takchashi et al.
patent: 4733698 (1988-03-01), Sato
patent: 5052476 (1991-10-01), Sukamoda et al.
patent: 5070937 (1991-12-01), Mougin et al.
patent: 5332034 (1994-07-01), Chiang et al.

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