Method for determining the octane rating of gasoline samples by

Details Method for determining the octane rating of gasoline samples by Method for determining the octane rating of gasoline samples by

1994-03-25

1997-02-25

Chilcot, Richard

Measuring and testing

Vibration

By mechanical waves

73599, G01N 924

Patent

active

056061307

ABSTRACT:
A method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries.

REFERENCES:
patent: 5062296 (1991-11-01), Migliori
patent: 5152180 (1992-10-01), Waldhauer, Jr.
patent: 5359541 (1994-10-01), Pope et al.
patent: 5408863 (1995-04-01), Sawyers et al.
patent: 5408880 (1995-04-01), Rhodes et al.
patent: 5426977 (1995-06-01), Johnston et al.

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