ASPECTS OF VOLUMETRIC EFFICIENCY MEASUREMENT FOR RECIPROCATING ENGINES

Abstract

The volumetric efficiency significantly influences engine output. Both design nd dimensions of an intake and exhaust system have large impact on olumetric efficiency. Experimental equipment for measuring of airflow hrough the engine, which is placed in the intake system, may affect the esults of measurements and distort the real picture of the impact of ndividual structural factors. This paper deals with the problems of xperimental determination of intake airflow using orifice plates and the nfluence of orifice plate diameter on the results of the measurements. The roblems of airflow measurements through a multi-process Otto/Diesel ngine were analyzed. An original method for determining volumetric fficiency was developed based on in-cylinder pressure measurement during otored operation, and appropriate calibration of the experimental rocedure was performed. Good correlation between the results of pplication of the original method for determination of volumetric efficiency nd the results of theoretical model used in research of influence of the ntake pipe length on volumetric efficiency was determined.

Keywords

Dates

  • Submission Date2012-05-31
  • Revision Date2012-08-02
  • Acceptance Date2012-08-08

DOI Reference

10.2298/TSCI120531153P

References

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