Heat exchange – With coated – roughened or polished surface
Patent
1987-07-08
1988-11-29
Lazarus, Ira S.
Heat exchange
With coated, roughened or polished surface
16510426, F28F 1300
Patent
active
047874414
ABSTRACT:
A heat exchanger wall incorporates a partition wall (11-12), one side of which is in contact with a heat exchange medium. A mechanically stable part (11) of the partition wall (11-12) has provided on one surface thereof a thin metal foil (12), which is provided with a large number of small through-passing holes (121) and which is attached directly to the said part (11), such as to form a minute gap (13) between the foil and the mechanically stable part. According to one embodiment the element comprises a tube (11) and the foil has provided therein a longitudinally extending slot (122) and/or a plurality of folds or bends (31, 32) directed towards the stable part (11), and/or a fold or bend (51) facing away from the stable part (11). In addition to occurring through the intrinsic rigidity of the foil, the thin gap is formed by providing one side of the foil (12) with a rough or irregular structure, or by forming the holes in the foil in a manner such as to leave burrs around the defining edges of the holes, or by providing in the foil a number of folds or bends (31, 32) which face towards the mechanically stable part.
REFERENCES:
patent: 2941759 (1960-06-01), Rice et al.
patent: 3684007 (1972-08-01), Ragi
patent: 4434842 (1984-03-01), Gregory
Granryd Eric
Palm Bjorn
Lazarus Ira S.
Neils Peggy
LandOfFree
Heat transfer element 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 transfer element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat transfer element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-357531