Patent ID: 6698509
Filing Date: 2004-03-02
Classification: F28D,F28F

Abstract:
A heat exchanger comprising:a first plurality (C) of stacked, tube-like members having respective first inlet and first outlet distal end portions defining respective first inlet and first outlet openings, all of said first inlet openings being joined together so that the first inlet distal end portions form a first inlet manifold and all of said first outlet openings being joined together so that the first outlet distal end portions form a first outlet manifold; a second plurality (D) of stacked, tube-like members located adjacent to said first plurality of tube-like members, the second plurality of tube-like members having second inlet and second outlet distal end portions defining respective second inlet and second outlet openings, all of said second inlet openings being joined together so that the second inlet distal end portions form a second inlet manifold and all of said second outlet openings being joined together so that the second outlet distal end portions form a second outlet manifold; a third plurality (E) of stacked, tube-like members located adjacent to said second plurality (D) of tube-like members, the third plurality of tube-like members having third inlet and third outlet distal end portions defining respective third inlet and third outlet openings, all of said third inlet openings being joined together so that the third inlet distal end portions form a third inlet manifold and all of said third outlet openings being joined together so that the third outlet distal end portions form a third outlet manifold; the second outlet manifold being joined to communicate with the first outlet manifold; the second inlet manifold being joined to communicate with the first inlet manifold; a first barrier located between the first and second inlet manifolds, the first barrier defining a first orifice to permit a portion only of the flow in the first inlet manifold to pass into the second inlet manifold; the third outlet manifold being joined to communicate with the second outlet manifold; the third inlet manifold being joined to communicate with the second inlet manifold; a second barrier located between the second and third inlet manifolds, the second barrier defining a second orifice to permit a portion only of the flow in the second inlet manifold to pass into the third inlet manifold, said first orifice and said second orifice having different configurations; and a fluid inlet tube for the heat exchanger that passes through the first, second and third inlet manifolds and through openings provided through the first and second barriers, the openings being discrete from the orifices.