Improved radiator fin shrink-ring and its manufacturing method

Application Number: 00108696
Application Date: 2000.05.19
Publication Number: 1305085
Publication Date: 2001.07.25
Priority Information: 1999/5/20 US 09/315,103
International: F28F1/30;B21D21/00
Applicant(s) Name: Carrier Corp.
Inventor(s) Name: Emery F. Arey;Michael P.M. Kabao;Danier P.M. Kabao;Danier P. Gaffney
Patent Agency Code: 31100
Patent Agent: wu menghua
Abstract 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. It also includes a stepped transitional portion connecting the contact portion and the elongated fin portion. A method for forming the fin collar and a heat exchanger are also disclosed.