Computer Simulation of the GM Unit Injector

Authors:
  • RSR. S. Scullen
    R. S. Scullen
  • RHR. J. Hames
    R. J. Hames
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Abstract
Future improvements in diesel engine fuel economy, while continuing to meet legislated emission standards, will require an increased understanding of the diesel combustion process. The fuel injection system plays a major role in establishing conditions before and during combustion; and, therefore, its contribution to the development of an optimum combustion system is important. This paper describes a mathematical simulation of the General Motors Unit Injector and its application to the combustion system development process. Simulation results are compared to test data from a comprehensive experimental program.