The Importance of Blow-By Measurements, Measuring Equipment Required and Implementation

Paper #:
  • 981081

Published:
  • 1998-02-23
Citation:
Ebner, H. and Jaschek, A., "The Importance of Blow-By Measurements, Measuring Equipment Required and Implementation," SAE Technical Paper 981081, 1998, https://doi.org/10.4271/981081.
Pages:
8
Abstract:
Over the past few years, the determination of blow-by has gained importance. The longevity of measuring equipment has come to play a key role in the measuring of the often oil-contaminated gas and its sticky condensate.Measuring instruments such as gas flow counters, methods based on the Karman vortex street, impeller meters, have a reduced longevity and thus are not suitable for the determination of blow-by where high precision and reproducibility are required.An instrument was developed for measuring blow-by based on the orifice measurement principle. Taking into account the demands placed on a measurement system, we show that this instrument best meets the needs while avoiding the weaknesses of the other measurement methods mentioned above.
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