B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1051, 257/26,
B29C 53/14 (2006.01) F28F 13/12 (2006.01)
Patent
CA 1220314
IMPROVEMENTS TO HEAT EXCHANGERS ABSTRACT OF THE DISCLOSURE In a heat exchanger, the flowing fluid is caused to impinge vigorously against the heat conducting walls, for the purpose of improving heat transfer efficiency. Disclosed is an apparatus for and a method of making a twisted plastic ribbon that fits snugly in the tubes of the heat exchanger, and which imparts a helical swirling velocity to the fluid flowing through the tube. Efficiency is enhanced so economically that it becomes practical to make an automotive radiator from round aluminum tubes, provided they are fitted with the twisted plastic ribbons; aluminum being a much cheaper material then the traditional copper. The apparatus includes two sets of traction rollers for conveying the ribbon from the extruder. One set of rollers rotates to impart the required helical twist. The ribbon is heated to above its critical temperature so that the twisted shape becomes permanent. The ribbon is cooled (by quenching it in water) to give it the strength it needs to enter the respective sets of rollers. This apparatus allows the twisted ribbon to be produced on a continuous-production basis.
439489
Marks & Clerk
Standard Products (canada) Limited
LandOfFree
Twisting a plastic ribbon does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Twisting a plastic ribbon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Twisting a plastic ribbon will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1322204