Cylinder power balance diagnostic apparatus for internal combust

Details Cylinder power balance diagnostic apparatus for internal combust Cylinder power balance diagnostic apparatus for internal combust

1984-11-16

1986-12-02

Levy, Stewart J.

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

046255460

ABSTRACT:
There is provided a cylinder power balance diagnostic apparatus for an internal combustion engine, in which all of the diagnostic procedures are automatically conducted. An ignition signal generated in synchronism with an ignition pulse to be supplied to each cylinder is taken out. On the basis of the ignition signal, at least one cylinder to be misfired is designated. The designated cylinder is misfired for a predetermined period and the number of engine rotations is detected when the period has elapsed. Such operation is successively conducted for respective cylinders. On the basis of the number of engine rotations when misfiring of each cylinder has been finished, a detective cylinder is determined.

REFERENCES:
patent: 29984 (1879-05-01), Howes
patent: 2887654 (1959-05-01), Strassman et al.
patent: 3400579 (1966-06-01), Parmater et al.
patent: 3572103 (1971-03-01), Marino
patent: 3788129 (1974-01-01), Trussell
patent: 4295363 (1981-10-01), Buck et al.

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