Heat exchange – Tubular structure – With discrete heat transfer means
Patent
1978-03-27
1980-10-14
Scott, Samuel
Heat exchange
Tubular structure
With discrete heat transfer means
291573AH, F28F 136
Patent
active
042275725
ABSTRACT:
Finned tubing for use in heat exchangers has tapered helical fins with serrations disposed between connecting webs. The opposed edges of the serrations, interior of the periphery, taper to a relatively sharp edge. Shark-fin like protuberances project outwardly adjacent one leg of each serration with each protuberance having a flange thereon. In one modification, the serrations on adjacent fins are spirally aligned. One method and apparatus of producing the finned tubing subjects a tensioned strip to graduated compression to curl the strip onto a tube to form fins, while simultaneously relieving a portion of the compression at spaced points along the periphery of the strip, resulting in a tearing of the strip to provide the serrations, and the adjacent protuberances. The protuberances are then compressed by rollers to form the flanges. An apparatus for carrying out the method includes a pair of rotary members to taper and curl the strip, with one of the rotary members having a series of recesses. Another method of producing some form of serration uses a raised projection on a rotary member instead of a recess.
REFERENCES:
patent: 242300 (1881-05-01), Gold
patent: 2201024 (1940-05-01), Brown, Jr.
patent: 3326283 (1967-06-01), Ware
patent: 3362058 (1968-01-01), Morris et al.
patent: 3417451 (1968-12-01), Gunter et al.
patent: 3947941 (1976-04-01), O'Connor et al.
Scott Samuel
Seton-Scherr, Inc.
Streule, Jr. Theophil W.
LandOfFree
Finned tubing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Finned tubing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finned tubing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2096981