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US 2006/0124704 A1Published application
Apparatus for brazing a heat exchanger
AssigneeBehr Lorraine S.A.R.L.
InventorsPascal Haffner, Johann Simon, Phillippe Raynal
Life of this patent
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Abstract
An apparatus for brazing a heat exchanger, in particular a flat-tube heat exchanger, comprising a block of flat tubes and corrugated fins. The apparatus comprises a brazing frame that accommodates a tube-fin block within itself and which has two brazing bars arranged parallel to each other which are connected by tie rods. The brazing bars have a plurality of openings that are open toward one side, e.g., notches.
Claims5
A method for brazing a heat exchanger that includes a block of tubes and fins, comprising:
- mechanically joining the tubes and fins to form a block;
- transversely compressing the block with respect to the longitudinal direction of the tubes to a width dimension B;
- inserting the block into a brazing frame which has a fixed lateral dimension sufficient to maintain the block in a compressed state suitable for brazing;
- and
- brazing the compressed block, while held in the brazing frame, in a brazing furnace.
2 more elements
Dependencies are inferred from the claim text.