Flow Computation of Total Head Losses and Total Pressure Losses in a Typical Gasoline Fuel Injector System

Abstract

Pressure losses may result in delivery of inaccurate amount of fuel to each cylinder connected to the engine, thereby significantly reducing the distribution of fuel to each cylinder of the engine. For a typical gasoline port fuel injector system, there is a need for proper understanding of pressure and head losses. This study is centred on flow computation of total head losses and total pressure losses in a typical gasoline port fuel injector system. The pressure and head losses were calculated. The pressure losses due to diameter expansion and contraction were negligible. Total minor head losses were calculated for the gasoline fuel injection system, while major total pressure losses were obtained for the gasoline fuel. Therefore, a drop in pressure will lead to decrease in thrust, and an increase in specific fuel consumption and vice-versa