Patent ID: 7475719
Filing Date: 2009-01-13
Classification: F28D,F28F

Abstract:
1. A high-frequency, low-amplitude corrugated fin for a heat exchanger coil assembly, comprising: a plate member extending horizontally in a horizontal direction along an imaginary horizontal reference line and vertically in a vertical direction along an imaginary vertical reference line to define a reference plane as viewed in side elevation and at least one zone as viewed in front elevation, the plate member having an opposing pair of horizontally-extending side edges and an opposing pair of vertically-extending side edges with respective ones of the vertically-extending side edges and the horizontally-extending side edges joining one another to form a generally rectangularly-shaped plate member as viewed in front elevation, the plate member having a plurality of conduit portions and a first series of corrugated segments and a second series of corrugated segments formed into the plate member, each one of the first series of corrugated segments angling away from the imaginary horizontal reference line and each one of the second series of corrugated segments angling toward the imaginary horizontal reference line as viewed from one of the vertically-extending side edges towards a remaining one of the vertically-extending side edges, the first and second series of corrugated segments undulating generally equidistantly relative to and from the reference plane as viewed in cross-section, the at least one zone divided into a first sub-zone and a second sub-zone disposed horizontally juxtaposed to the first sub-zone, the plurality of conduit portions being inter-dispersed throughout the plate member among the first and second series of corrugated segments, each conduit portion having a flat piece and a collar, each flat piece being generally disposed in the reference plane and having a hole formed transversely therethrough, a respective collar connected to and projecting from a corresponding one of the flat pieces to define a transversely extending conduit in communication with the hole, wherein each one of the first series of corrugated segments extend at a first angle relative to the horizontal direction and each one of the second series of corrugated segments extend at a second angle relative to the horizontal direction such that individual adjacent ones of the first and second series of corrugated segments form a generally chevron-shaped configuration as viewed in front elevation, wherein the first sub-zone includes at least one vertically-extending column of first conduit portions and the second sub-zone includes at least one vertically-extending column of second conduit portions, wherein respective ones of the collars of the first conduit portions are disposed entirely within the first sub-zone as viewed in front elevation and respective ones of the collars of the second conduit portions are disposed entirely within the second sub-zone as viewed in front elevation and wherein at least a plurality of the first and second series of corrugated segments extend substantially entirely across the extent of said first and second sub-zones, respectively, such that all of the corrugated segments within the first sub-zone which cross the horizontal reference line or the vertical reference line extend substantially at the same first angle relative to the horizontal reference line or the vertical reference line, and all the corrugated segments within the second sub-zone which cross the horizontal reference line or the vertical reference line extend substantially at the same angle relative to the horizontal reference line or the vertical reference line, the first and second angles being substantially different, and a transition between the first series of corrugated segments extending at the first angle and the second series of corrugated segments extending at the second angle defines a boundary between the horizontally-juxtaposed first and second sub-zones.