Patent ID: 6957689
Filing Date: 2005-10-25
Classification: B60K,F01P,F02B,F28D,Y02T,Y10S

Abstract:
1. A heat exchanger arrangement comprising: a coolant cooler exposed to ambient air and comprising a plurality of tubes through which coolant to be cooled flows and beat dissipating ribs connected to the tubes; a charge-air cooler exposed to ambient air and comprising a plurality of tubes through which hot charge air flows and heat dissipating ribs connected to the tubes, the charge-air cooler having a charge-air inlet region from which hot charge air is introduced and a charge-air outlet region from which cooled charge air exits; and at least one additional heat exchanger, wherein the charge-air cooler is positioned downstream of the coolant cooler relative to a direction of cooling air flow, wherein the charge-air cooler has an overlapping region in which the coolant cooler and the charge-air cooler overlap one another and a non-overlapping region in which a portion of the charge-air cooler projects substantially perpendicularly to the cooling air flow direction, beyond the coolant cooler, wherein the non-overlapping region is formed at least in the charge-air outlet region and is cooled by ambient cooling air that does not pass through the coolant cooler, wherein the overlapping region is cooled by ambient cooling air that cools the coolant cooler, wherein the charge-air cooler has multiple rows of the tubes, with a greater number of tube rows in the non-overlapping region than in the overlapping region, and wherein said at least one additional heat exchanger is integrated with at least one of the charge-air cooler and coolant cooler and arranged upstream, downstream, or alongside thereof.