Fin louver design for heat exchanger
AssigneeValeo Engine Cooling AB
InventorsZaiqian Hu, Philippe Le Gauyer, Lei Fang
Life of this patent
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Abstract
A fin louver design using breaking and reversal louvers whose lengths are substantially longer than the half-length of the main louver but at slightly lower angles to the fin face, in order to increase the heat transfer while reducing or minimizing the airside air pressure drop. The reversal louvers will not dramatically change the airflow direction but rather permit air to follow the louver direction, thus preventing any dead area where the air speed is approximately zero in the central part between the two reversal louvers. Contact is provided between fresh moving air and the central part between the two reversal louvers.
Claims7
A fin system having at least one louver set used to enhance the transfer of heat from a first medium to a second medium, said louver set comprising:
- at least two blocks of louvers, each block having a first breaking louver, one or more main louvers and a reversal louver and between the central reversal louvers is a flat area,
- wherein the length of said first breaking louver and the length of the reversal louver are substantially wider than half of the length of the main louvers as measured across flat areas of the first breaking louver, the reversal louver and the main louver,
- and wherein first angles of orientation of at least one of the breaking louver and the reversal louver are lower than a second angle of orientation of the main louvers when measured relative to a fin face from which the louvers protrude.
Dependencies are inferred from the claim text.