In order to analyze the processes during the gas exchange in the engine, knowledge of pressure states in both inlet and outlet is required. This pressure measuring is known as “low pressure indication”. In the present work, three examples of controlling the quality of low pressure measurement are presented. An insight in the pressure waves in exhaust pipe, especially in the exhaust blow-off is given.It was shown that: a small inaccuracy of measurement, lower than 10 mbar can be attained, the asymmetric course of the exhaust pulse can clearly be verified, and a protection screen for a sensor exposed to the exhaust blow-off pressure wave can be a tool to optimize between longlife and accuracy.The most important statements are:
Research of Techniques for Low Pressure Indication in Internal Combustion Engines
Sae Technical Papers
SAE 2012 World Congress & Exhibition ; 2012
2012-04-16
Conference paper
English
Research of Techniques for Low Pressure Indication in Internal Combustion Engines
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