Direct Injection of Fuel Mixture in a Spark Ignition Two-Stroke Engine

Wladyslaw Mitianiec

doi:10.4271/2002-01-0830

2002-03-04

Direct Injection of Fuel Mixture in a Spark Ignition Two-Stroke Engine 2002-01-0830

Paper includes a description of the new system of rich mixture injection by applying of additional chamber and gas flow controlled by electronic valves. The system enables decreasing of hydrocarbons emission and specific fuel consumption. The paper includes mathematical model of exchange charge in the chamber and cylinder, injection process, simulation results of physical processes, which occur in the cylinder and chamber. A diagram of the fuelling system explains a principle of work and figures show variation of gas pressure, temperature and vaporization of fuel during crankshaft rotation. The system is designed for one-cylinder two-stroke engine, but can be applied also for multi-cylinder engines.

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Direct Injection of Fuel Mixture in a Spark Ignition Two-Stroke Engine 2002-01-0830

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