| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary heat-exchanger in which an exhaust gas is rotated without augmenting the rate of rotational speed of a rotor, and NOX in the exhaust gas is reduced. SOLUTION: The inside of the housing 1 of the rotary heat-exchanger is partitioned by sector plates 5 into small sections to form at least 2 sets of exhaust gas paths 6 and combustion-air paths 7. Thus, an entry leak is increased to circulate the exhaust gas and reduce NOX without augmenting the rate of the rotation speed of the rotor 2 as in the conventional art. |
