Injection and regulation device for atmospheric gas burners for heating appliance, in particular of the infra-red type
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United States of America Patent
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Aug 27, 1996
Grant Date -
N/A
app pub date -
Jul 22, 1994
filing date -
Jul 23, 1993
priority date (Note) -
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Abstract
The invention concerns an injection and regulation device for burners for heating appliances equipped with a duct (4) for an air/gas mixture and comprising a Venturi element (5). According to the invention, the means of injection include at least two injectors (13, 18) arranged with their injection nozzles staggered longitudinally and oriented so that the axis of their flux converges on the heart of the Venturi element (5). Furthermore, one of the other injectors (13), named first stage, is calibrated so that it gives an injection flow corresponding to a minimum idling rate, and is connected in such a way as to be constantly supplied with gas. In addition, the means of regulation (16) are adapted to modulate the supply to each of the other injectors (18), named second stage, so as to obtain the power required.
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