16-02-2012 дата публикации
Номер: US20120037096A1
A combustion apparatus includes combustion means generating combustion exhaust by combustion of fuel, heat exchange means exchanging heat of the combustion exhaust, and exhaust dilution unit supplying dilution air after the heat exchange by the heat exchange means and diluting the combustion exhaust after the heat exchange, and controls a temperature of the combustion exhaust after the heat exchange below a predetermined temperature by dilution by air supply. 1. A combustion apparatus comprising:combustion means generating combustion exhaust by combustion of fuel;heat exchange means exchanging heat of the combustion exhaust; andexhaust dilution unit supplying dilution air after the heat exchange by the heat exchange means and diluting the combustion exhaust after the heat exchange.2. The combustion apparatus of claim 1 , further comprising:a housing which has an air supply tube and to which air is supplied via the air supply tube; anda combustion chamber placed in the housing and providing the combustion means and the heat exchange means,wherein the exhaust dilution unit is placed at a downstream side of the combustion exhaust in the combustion chamber.3. The combustion apparatus of claim 1 , wherein the exhaust dilution unit has a path for mixing the dilution air supplied from air supply means with the combustion exhaust after the heat exchange.4. The combustion apparatus of claim 1 , wherein the exhaust dilution unit has an exhaust tube venting the combustion exhaust diluted by the dilution air.5. The combustion apparatus of claim 1 , wherein the exhaust dilution unit has backflow preventing means that prevents a backflow of the combustion exhaust.6. The combustion apparatus of claim 1 , wherein the exhaust dilution unit has air flow guiding means that guides a flow of the combustion exhaust for the dilution air.7. The combustion apparatus of claim 1 , further comprisingtemperature detection means detecting temperature of the combustion exhaust; andcontrol means ...
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