Method and apparatus for measuring octane number

Details Method and apparatus for measuring octane number Method and apparatus for measuring octane number

G - Physics

01

N

G01N 33/22 (2006.01) G01N 33/28 (2006.01)

Patent

CA 2170674

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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