| 摘要 |
A muffler (10) devised particularly for a small, reciprocating-piston two-stroke internal combustion engine of the type used on unmanned aerial vehicles. The muffler (10) comprises a body (11) incorporating an inlet (13), an outlet (15), and a plurality of chambers (17) for exhaust gas flow from the inlet to the outlet. The body (11) is configured to present a compact profile for installation on the engine. The chambers (17) are so configured that adjacent chambers communicate to facilitate exhaust gas flow from the inlet (13) to the outlet (15) via flow passages (50). The various chambers (17) comprise an inner chamber (31), an outer chamber (33), and one or more intervening chambers (35) disposed between the inner and outer chambers. The various chambers (17) are disposed one about another in annular formation. This arrangement creates a long flow path from the inlet (13) to the outlet (15) incorporating various directional changes. |
