Connection device for a coaxial tube heat exchanger

摘要

A connection device of a double-walled heat exchanger tube is provided, in particular for the heat exchanger of a motor vehicle air conditioning system. The heat exchanger tube has an outer tube and an inner tube that runs coaxially inside the outer tube spaced radially apart from it. The connection device further has a fitting for accommodating radially overlapping end sections of the inner and outer tube. The outer and inner tubes according to the invention are at least sectionally joined together without soldering in the area of the fitting, and with the fitting.

主权项

1. A connection device of a double-walled heat exchanger tube having an inner tube and an outer tube, comprising:
the inner tube running coaxially inside the outer tube and spaced radially apart from the outer tube; a fitting radially overlapping end sections of the inner tube and the outer tube; and an unsoldered joint joining the fitting and the outer tube, the same unsoldered joint joining the inner tube directly to the outer tube, at least sectionally in an area of the fitting.