Heat exchanger evaporator

Wärmetauscher-Verdampfer

Echangeur de chaleur-évaporateur

Abstract

A multi-pass evaporator (10) of a heat exchanger for a motor vehicle air-conditioning system includes a plurality of heat exchanger tubes (12a-t) coupled to first and second header tubes (30,32) disposed side by side. The first header tube contains a blocking member (52) and an inlet tube (48) extending from an inlet end (38) of the first header tube (30) to the blocking member (52). The blocking member (52) includes an aperture (53) which receives the bell-shaped end (54) of the inlet tube (48). A plurality of tangs (72a-c) are provided on the blocking member (52) which are deformable onto the open end (54) of the inlet tube (48) so as to secure the inlet tube (48) to the blocking member (52). The inlet tube (48) is then brazed to the tangs (72a-c). This design of the end of the inlet tube has been found to reduce considerably noise produced during use of the evaporator.

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    EP-0138435-A2April 24, 1985General Motors CorporationTube and fin heat exchanger
    EP-0563474-B1January 31, 1996Showa Aluminum CorporationStack type evaporator
    FR-2148346-A1March 23, 1973Chausson Usines Sa

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