Patent ID: 7228885
Filing Date: 2007-06-12
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 ambient cooling air flows, opposite first and second ends adjacent the faces of the first heat exchanger portion, and sides adjacent the faces of the first heat exchanger portion between the first and second ends of the first heat exchanger portion; 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 air flows, opposite first and second ends adjacent the faces of the second heat exchanger portion, and sides adjacent the faces of the second heat exchanger portion between the first and second ends of the second heat exchanger portion, and including manifolds at the first and second ends of the second heat exchanger portions and fluid-carrying tubes extending substantially directly between the manifolds at the first and second ends of the second heat exchanger portions, one of the second heat exchanger portions being disposed in overlapping relationship and adjacent to one of the first heat exchanger portions with the first and second ends of the one of the second heat exchanger portions being oriented in the same direction as the first and second ends of the 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 with the first and second ends of the other of the second heat exchanger portions being oriented in the same direction as the first and second ends of 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 ambient 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 between the second manifold of the one of the first heat exchanger portions and the first manifold of the other of the first heat exchanger portions, and the second heat exchanger portions being operatively connected such that the second fluid may flow between the second manifold of the one of the second heat exchanger portions and the first manifold of the other of the second heat exchanger portions.