Analysis of Mixture Transport Delay in Fuel Supply for Carbureted Engine

抄録

The effect of the fuel supply time on the transport delay of fuel in carbureted engines was analyzed. The following points were made clear; (1) If fuel was supplied from the carburetor under the condition that fuel was not present in the intake pipe initially, fuel supply to the cylinders could be delayed due to the volumetric delay in the intake pipe. This occurred even if fuel was transported together with air without any vaporization delay. The volumetric delay was affected by the supply time. (2) The fuel supply to the cylinders within 2 rotations from the fuel supply start was affected by the supply time when part of the fuel was vaporized.