Patent ID: 6154960
Filing Date: 2000-12-05
Classification: F28F,Y10T

Abstract:
A heat exchanger manifold block configured for attachment by brazing to a heat exchanger manifold by orienting the manifold block to have a longitudinal axis thereof substantially parallel to a longitudinal axis of the manifold, the manifold block comprising:a longitudinal surface substantially parallel to the longitudinal axes of the manifold block and the manifold;a second surface of the manifold block;a port hole in the second surface of the manifold block, the port hole being configured to receive a jumper tube to which the manifold block is configured for attachment;fins projecting from at least one of the longitudinal and second surfaces of the manifold block, the fins promoting convective and radiative heat transfer to the manifold block so as to increase the heating rate of the manifold block during brazing of the manifold block to the jumper tube and the manifold; anda counterbore surrounding the port hole, the counterbore being sized to serve as a reservoir for molten braze metal and to prevent molten braze metal from flowing away from the jumper tube and toward the fins during brazing of the jumper tube to the port hole.