| 摘要 |
<p>PURPOSE: To eliminate reaction by an interference action in a resonator affecting an exhaust conduit by dividing exhaust gas flow into both Helmholtz resonators provided with burners operating in a push-pull type in opposite periods to each other. CONSTITUTION: Exhaust gas flow from a diesel engine 1 is shunt to resonance pipes 4 of the same length within a casing 7 through an exhaust conduit 3. Exhaust gas flow is led to Helmholtz resonators 5, 6 which are equal in structure and is exhausted through a soot filter 10. In this case, both of the Helmholts resonators 5, 6 are provided with burners 12 operating in a push-pull type in opposite periods to each other. A filter 11 is regenerated in cooperation with a high pressure ignition plug 18. As a result, pressure waves transmitting by being generated from the burners 12 periodically operating by an interference action within symmetrical planes of the resonance pipes 4 between both of Helmholtz resonators 5, 6 are eliminated and reaction affecting the exhaust conduit 3 can be suppressed.</p> |
