Heat exchange – With coated – roughened or polished surface
Patent
1993-09-13
1994-08-02
Fox, John C.
Heat exchange
With coated, roughened or polished surface
165184, 165911, F28F 126
Patent
active
053336828
ABSTRACT:
A tube for use in a heat exchanger where heat is transferred between a fluid flowing through the tube and a fluid flowing around the exterior of the tube and where the fluid external to the tube boils during the heat exchange process. The tube has one or more external fin convolutions extending from its external surface. At intervals along each side surface of the fin convolutions there are shoulder notches extending from the fin side surfaces. The groove space between adjacent fin convolutions has raised teeth located circumferentially at intervals. The fin convolutions do not extend perpendicularly from the tube surface but are inclined, with one convolution overlying an adjacent groove but not touching its adjacent neighbor fin convolution to form a re-entrant boiling cavity with an opening gap. In one embodiment, the opening gap extends completely around the circumference of the tube. In another embodiment, the curved fin convolutions are depressed at intervals around the circumference of the tube so that a fin convolution is in close proximity to its adjacent neighbor closing the gap in the vicinity of the depression.
REFERENCES:
patent: Re30077 (1979-08-01), Kun et al.
patent: 3496752 (1970-02-01), Kun et al.
patent: 3696861 (1972-10-01), Webb
patent: 3768290 (1973-10-01), Zatell
patent: 4059147 (1977-11-01), Thorne
patent: 4765058 (1988-08-01), Zohler
patent: 5054548 (1992-09-01), Zohler
patent: 5146979 (1992-09-01), Zohler
patent: 5203404 (1993-04-01), Chiang et al.
Chiang Robert H. L.
Gaffaney Daniel
Gupte Neelkanth S.
Liu Xin
Spencer Steven J.
Carrier Corporation
Fox John C.
LandOfFree
Heat exchanger tube does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat exchanger tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat exchanger tube will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-60197