Patent ID: 7347248
Filing Date: 2008-03-25
Classification: B60H,F02B,F28D,F28F,Y02T

Abstract:
1. A heat exchanger apparatus comprising: a first heat exchanger having two portions for cooling a first fluid, each first heat exchanger portion having opposite front and rear faces through which cooling air flows, opposite first and second ends adjacent the faces, sides adjacent the faces between the first and second ends, and including tubes through which the first fluid may flow while being cooled; a second heat exchanger having two portions for cooling a second fluid, each second heat exchanger portion having opposite front and rear faces through which cooling air flows, opposite first and second ends adjacent the faces, and sides adjacent the faces between the first and second ends, and including tubes through which the second fluid may flow while being cooled, one of the second heat exchanger portions being disposed in overlapping relationship and adjacent to one of the first heat exchanger portions, wherein one face of the one of the first heat exchanger portions is disposed adjacent one face of the one of the second heat exchanger portions, such that the ambient cooling air may flow in series through the one of the first heat exchanger portions and the one of the second heat exchanger portions, the other of the second heat exchanger portions being disposed in overlapping relationship and adjacent to the other of the first heat exchanger portions, wherein the other face of the other of the first heat exchanger portions is disposed adjacent one face of the other of the second heat exchanger portions, such that the cooling air may flow in series through the other of the second heat exchanger portions and the other of the first heat exchanger portions, the first heat exchanger portions being operatively connected such that the first fluid may flow either in series or in parallel through the first heat exchanger portions, and the second heat exchanger portions being operatively connected such that the second fluid may flow in series between the one and the other of the second heat exchanger portions.