Combustion apparatus
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United States of America Patent
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Issued Date -
Nov 1, 2007
app pub date -
Apr 10, 2007
filing date -
Apr 27, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object of the present invention is to provide a combustion apparatus capable of certainly detecting a shortage of an amount of air relative to that of fuel gas. A combustion apparatus 1 is adapted to perform a primary combustion of air-fuel mixture in an oxygen-deficient condition composed of mixture of primary air and fuel gas and further perform a secondary combustion upon supply of secondary air 67, including a first ion current measuring element 65 positioned at a site where a flame of the primary combustion is to take place and a second ion current measuring element 66 adjacent to a secondary air supply opening 20, 21, 63, or 64 for supplying the secondary air 67, so as to control at least one selected from a group consisting of (a) a ratio of an amount of the primary air to that of the secondary air, (b) a total amount of the primary and the secondary air, and (c) an amount of the fuel gas based on measured values by the first and the second ion current measuring elements 65 and 66.
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