| 摘要 |
An engine composed of a main combustion chamber equipping the torch nozzle(5), a sub combustion chamber(6) equipping the internal ignition plug(7) a main carburetor(14) for lean mixture in the main combustion chamber and a sub carburetor(15) for the rich mixture in the sub combustion chamber, has a characteristic that a fixed orifice(21) was installed in the sub-suction air chamber of the sub-carburetor and the velocity of the suction air was fixed in the sonic category when idling.
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