Improved fin collar and method of manufacturing

Details Improved fin collar and method of manufacturing Improved fin collar and method of manufacturing

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 1/24 (2006.01) B21D 53/08 (2006.01) B23P 15/26 (2006.01) F28F 1/28 (2006.01)

Patent

CA 2306743

A heat exchanger fin collar for a plate-fin heat exchanger having close tolerance dimensions for achieving greater contact area on the tube. The fin collar comprises an elongated fin portion for dissipating heat and a leg connected with the fin portion. The leg has a height and includes a straight contact portion substantially perpendicular to the fin portion, wherein the contact portion has a contact height along which the contact portion contacts the tube. The height is in the range of 0.008 to 0.080 inches. It also includes a first curved end portion having a first radius extending from a first end of the contact portion and a stepped transitional portion connecting the contact portion and the elongated fin portion. The transitional portion has a second curved end portion having a second radius, wherein the second curved end portion extends from the contact portion opposite the first end. A method for forming the fin collar and a heat exchanger are also disclosed.

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