Patent ID: 6189608
Filing Date: 2001-02-20
Classification: B60K,F01P,F28F,Y02T

Abstract:
A cooling apparatus comprising:an air-cooled heat exchanger having a first end and a second end with a plurality of finned tubes extending substantially between the first and second ends, a plurality of louvres for controlling a cooling air flow passing the heat exchanger, said cooling apparatus having a mechanism for operating the louvres according to the temperature of the finned tubes, said mechanism comprising a bar having a first end and a second end and being of a material having a substantially lower thermal expansion coefficient than that of the finned tubes, said bar being attached by its first end substantially at said first end of the heat exchanger, wherein the position of the louvres is dependent on a difference in displacements of the second end of the bar and the second end of the heat exchanger due to the thermal expansion of the bar and that of the finned tubes.