Determination of number of teeth on an internal combustion engin

Details Determination of number of teeth on an internal combustion engin Determination of number of teeth on an internal combustion engin

1976-05-07

1977-04-05

Gill, James J.

Measuring and testing

Test stand

For engine

235 92GE, G01N 1500

Patent

active

040154661

ABSTRACT:
A transducer mounted on the flywheel housing of an internal combustion engine senses the passage of each tooth on the flywheel of the engine. The number of teeth in the flywheel (to aid in calculating factors such as engine speed) is measured by counting teeth during one full engine cycle, as determined by successive cylinder identification pulses, and the tooth count is selected from a table of industry standard numbers of permissible teeth as the one which is within two teeth of the count measured by either of the methods described hereinbefore. Display of the selected number of teeth is made without an error indication if within two teeth of a standard number from a table; if not within two teeth of a standard number, the measured number is displayed, and error is indicated. The operator can select the displayed number of teeth or enter a number which he chooses.

REFERENCES:
patent: 3012720 (1961-12-01), Rappaport et al.

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