Patent ID: 9243650
Filing Date: 2016-01-26
CPC Classification: F04D,F24F,F28D

Claim Text:
1. A fin array for use in a centrifugal fan having a housing and a fan wheel the fin array comprising: a first tube in a first plane, wherein the first plane is perpendicular to an axis of the fan wheel; a second tube in a second plane parallel to the first plane; and a fin in a third plane parallel to the first plane, the fin, the first tube and the second tube partially surrounding the axis of the fan wheel, the fin having a first end and a second end, the fin having a length between the first end and the second end, wherein the first tube and the second tube are in parallel contact with the fin along most of the length of the fin, wherein the fin is sandwiched between the first tube and the second tube, wherein the axis of the fan wheel is perpendicular to a plane defined by a larger surface of the fin, wherein the first tube and the second tube are biased toward an edge of the fin farthest from the fan wheel, and wherein the larger surface of the fin is disposed primarily radially inward of the first tube and the second tube.