Patent ID: 9395121
Filing Date: 2016-07-19
CPC Classification: B21D,F02M,F28D,F28F,Y02T,Y10T

Claim Text:
1. A heat exchanger for transferring heat between a first working fluid and a second working fluid, the heat exchanger comprising: a corrugated fin positionable along a flow path of the first working fluid between adjacent tube walls and being operable to increase heat transfer between the first working fluid and the second working fluid, the fin including a leg defined between adjacent folds; and a plurality of convolutions extending inwardly from a distal end of the leg, at least some of the plurality of convolutions having different lengths in a direction of flow of the first working fluid along the flow path, wherein the plurality of convolutions includes three adjacent convolutions, and wherein two of the three convolutions have similar lengths in a direction substantially parallel to a spine formed between the leg and an adjacent leg.