Back to results
US 5,345,674 AGranted
Heat exchanger
AssigneeLangerer & Reich GmbH & Co.
InventorsWolfgang Knecht, Roland Strahle, Gerhard Weiss
Life of this patent
Estimating the term…
Abstract
In a method of making a heat exchanger having a heat exchanger network with a plurality of tubes and at least one base plate having a plurality of passages for tube ends, the passages in the base plate are triangular, and the tube ends are triangular prior to insertion into the base plate. The triangular tube ends are inserted into the triangular passages in the base plate and thereafter expanded to a tight fit.
Claims10
A method of manufacturing a heat exchanger, comprising the steps of forming a heat exchanger network provided with a plurality of tubes having tube ends;
- arranging at least one base plate to be associated with said tubes;
- providing triangular openings in said base plate;
- deforming only the tube ends to a respective triangular contour;
- inserting the triangular tube ends of the tubes into the triangular openings of the base plate and expanding the tube ends against edges of the triangular openings thus forming a tight and fast connection between the tube ends and the tubes and the header plate.
1 more element
Dependencies are inferred from the claim text.