| 摘要 |
Surface gas burner for heating boilers, in particular what is conventionally called a premixing burner, consisting of at least one symmetrical hollow body of revolution (1) with respectively a finely perforated wall, the longitudinal axis of the burner being oriented essentially in the direction of the influx of the gas and the wall being formed by a cutout piece made of sheet metal (5) made continuous with a weld (4). According to the invention, the cutout piece made of sheet metal (5) is fashioned without perforations on its edges which are to be connected, in particular on its end edges (6), and the weld (4) is positioned by being located along the non-perforated edges (6). <IMAGE>
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