Sacrificial erosion bridge for a heat exchanger

Details Sacrificial erosion bridge for a heat exchanger Sacrificial erosion bridge for a heat exchanger

1994-03-04

1995-11-14

Schwadron, Martin P.

Heat exchange

With protector or protective agent

165174, F28F 1900

Patent

active

054657830

ABSTRACT:
A method for reducing the internal erosion of a brazed aluminum heat exchanger, such as a heater core used in automotive applications. The heat exchanger is composed of a tank and header that form a chamber, a number of coolant tubes secured to the header such that ends of the tubes project into the chamber, and an inlet to the chamber disposed opposite to the tubes so as to direct a coolant toward the ends of the tubes. A sacrificial erosion member is brazed to the tank so as to be in the path of the coolant as the coolant flows from the inlet into the chamber, such that the coolant impinges the erosion member as it enters the chamber. As a result, the coolant is deflected away from the ends of the tube so as to reduce erosion of the ends of the tubes. Furthermore, the erosion member serves to enhance the efficiency of the heat exchanger by improving the flow distribution of the coolant among the tubes.

REFERENCES:
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patent: 3697191 (1972-10-01), Haymann
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patent: 4771942 (1988-09-01), Arold et al.
patent: 5186249 (1993-02-01), Bhatti et al.
patent: 5238059 (1993-08-01), Smith
patent: 5307870 (1994-05-01), Kamiya et al.

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