Patent ID: 7306030

Claim:
A heat exchanger for use with a heat exchange fluid, said heat exchanger comprising: a heat exchange element including: a pair of manifolds; and a plurality of heat exchange flow passages extending between the manifolds for the passage of said heat exchange fluid through the heat exchange element, wherein one of said manifolds has a longitudinal flow distribution passage defined by a peripheral wall formed with a longitudinally-spaced plurality of opposed recesses therein; and an insert including a cradle dimensioned to be axially slidably located in the flow distribution passage in an operative position to block flow through the flow distribution passage, the cradle having a peripheral wall portion engaging said manifold peripheral wall in snug-fitting relation, a base portion spanning the cradle peripheral wall portion, and oppositely-facing, resilient, spaced-apart fingers including tab portions extending outwardly of the base portion and engaged in opposed recesses to retain the insert in said operative position wherein the operative position of the insert is at an intermediate location in the manifold, thereby to separate the plurality of heat exchange flow passages into two subpaths connected in series to one another, each subpath being composed of a group of the heat exchange flow passages connected in parallel to one another.