| 摘要 |
In the process for preparation of the mixture in a spark-ignition engine the fuel fed to a mixing area by means of a spray nozzle is mixed with air drawn in by the engine and the fuel is vaporised by heating in the spray area of the nozzle. Part of the respective total air demand is initially introduced into the mixture immediately before it leaves the intake chamber in the area of the centre of the cross-sectional area of the intake chamber. In a spark-ignition engine with carburettor an air feed line opening out in the outlet area of the intake chamber, approximately in the centre of the cross-sectional area of this chamber, is provided for performing the above-mentioned process.
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