Method and apparatus for measuring octane number
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United States of America Patent
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May 27, 1997
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N/A
app pub date -
Apr 13, 1995
filing date -
Apr 13, 1995
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Abstract
An apparatus and method to automate octane number measurements from a knock engine is provided. A first and second reference fuel having different knock octane numbers and a test fuel having an unknown octane number are each provided to the fuel inlet of an engine at a series of flow rates. For each flow rate an average knock intensity is calculated and from the resulting series of average knock intensities, a flow rate which will give a maximum knock intensity is calculated using curve fitting techniques.
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