Patent ID: 8517086
Filing Date: 2013-08-27
Classification: F28D,F28F,Y10T

Abstract:
1. A heat exchanger comprising: a housing having an internal wall defining a portion of a heat exchanging cavity; a tube bundle including a plurality of tubes disposed in said housing; and at least one resilient end structure disposed in compressed relation at least partially across said heat exchanging cavity in transverse relation to at least a portion of said plurality of tubes, said resilient end structure including an inner open surface disposed adjacent said heat exchanging cavity and an outer open surface opposite said heat exchanging cavity; said at least one resilient end structure including at least one boundary segment disposed between said internal wall and said tube bundle, said at least one boundary segment including at least a first material of elastomeric character characterized by a first compressive modulus of elasticity in combination with at least a second material characterized by a second compressive modulus of elasticity, said second compressive modulus of elasticity being greater than said first compressive modulus of elasticity, wherein within a perimeter of said tube bundle and between said inner open surface and said outer open surface, said resilient end structure includes a single material, wherein said second material is separated from said housing and extends from one of the inner and outer open surfaces of said resilient end structure, said internal wall and said tube bundle define a serpentine flow path, said serpentine flow path including a plurality of flow direction changing windows, and said second material is disposed in said resilient end structure only within one or more portions of said resilient end structure aligned with said flow direction changing windows.