Patent ID: 6832644
Filing Date: 2004-12-21
Classification: F01P,F04D,F28D,F28F

Abstract:
A cooling module comprising:a shroud having at least one fan opening in a wall thereof to permit air to pass though the shroud; a heat exchanger associated with the shroud; at least one fan to permit air moved by the fan to pass through the heat exchanger in a certain direction; a drive device to drive the fan; and a plurality of air dams constructed and arranged to allow air to flow more freely through the cooling module in the certain direction than in a direction opposite the certain direction, wherein the air dams are shaped to have a flow deflecting surface and a flow impeding surface opposite the flow deflecting surface, wherein the air dams are arranged in at least two-axially staggered rows with a first row of air dams provided along a first axis so as to define a space between adjacent air dams and, a second row of air dams is disposed on a second axis spaced from the first axis, with the flow deflecting surface of each air dam of the second row being oriented in the same direction as the flow deflecting surfaces of the first row of air dams and each flow deflecting surface of the second row of air dams being disposed to generally obstruct said space.