F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 9/18 (2006.01) B23K 26/10 (2006.01) B23K 26/28 (2006.01)
Patent
CA 2573019
The invention relates to a water heater (2) or steam generator comprising a chamber (4) which is divided into two parts (5, 6) that are formed, for example, by drawing. The aforementioned chamber contains a heating body (8) having a main spiral part (10) and two end parts (11, 12) which pass through two circular openings in said chamber. The two end parts are welded to the chamber using a laser beam, such as to produce a continuous weld bead that ensures that the heating body is fixed mechanically and the water heater or steam generator is effectively sealed. For said purpose, a collar (18) is provided on the periphery of each opening. In addition, said collars are equipped with a flared edge (28) to ensure that the two parts of the chamber are welded together effectively.
Le chauffe-eau (2) ou générateur de vapeur comprend une enceinte (4) en deux parties (5, 6) formées notamment par emboutissage. A l'intérieur de cette enceinte est agencé un corps de chauffe (8) ayant une partie principale en spirale (10) et deux parties d'extrémité (11, 12) traversant deux ouvertures circulaires de l'enceinte. Les deux parties d'extrémité sont soudées à l'enceinte par un faisceau laser de manière à ce que le cordon de soudure obtenu soit continu et assure une bonne fixation mécanique du corps de chauffe et une étanchéité suffisante pour le chauffe-eau ou générateur de vapeur. A cet effet, il est prévu d'agencer une collerette (18) en périphérie de chaque ouverture. De même, pour permettre une soudure efficace des deux parties de l'enceinte, ces dernières présentent un bord évasé (28).
Beltrami Gustavo
Montanaro Mario
Naman David
Gowling Lafleur Henderson Llp
Lasag Ag
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