Apparatus for measuring fuel injection advance angle in diesel e

Details Apparatus for measuring fuel injection advance angle in diesel e Apparatus for measuring fuel injection advance angle in diesel e

1984-04-09

1986-03-04

Kreitman, Stephen A.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

123494, G01M 1500

Patent

active

045733473

ABSTRACT:
In a fuel injection advance angle measuring apparatus, in which the advance angle is measured on the basis of an injection timing signal produced from, such as, a needle valve lift sensor and a reference timing signal indicative of the reference timing of the engine rotation, in order to remove the noise signal from the signal from the sensor, a masking signal indicating a predetermined period in which the desired component of the injection timing signal is not to be produced, is generated in response to the injection timing signal and the reference timing signal whereby to eliminate the undesired components of the injection timing signal for the measurement of the fuel injection advance angle and to obtain the fuel injection advance angle with high accuracy in measurement.

REFERENCES:
patent: 4023403 (1977-05-01), Smith
patent: 4109517 (1978-08-01), Dyballa et al.
patent: 4265200 (1981-05-01), Wessel et al.
patent: 4416150 (1983-11-01), Kago et al.

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