| 摘要 |
<P>PROBLEM TO BE SOLVED: To develop a combustion device having a small flow path resistance and not increasing the overall height. <P>SOLUTION: A body section 35 is located between a gas introduction port 26 and a gas discharge port 27 in a secondary heat exchange case 15, and the entirety or most parts of the body section 35 are provided at a position deviating from a projection plane of the gas introduction port 26. A first cavity part 82 is formed near the gas introduction port 26. Combustion gas introduced through the gas introduction port 26 changes direction in the first cavity part 82, passes through almost all of the cross section of a combustion gas flow path formed by the secondary heat exchange case 15, flows to the body section 35 side and is discharged from the gas discharge port 27. <P>COPYRIGHT: (C)2013,JPO&INPIT |
