Diesel engine start of fuel injection detecting system

Details Diesel engine start of fuel injection detecting system Diesel engine start of fuel injection detecting system

1980-11-21

1982-07-06

Myracle, Jerry W.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

G01M 1500

Patent

active

043376509

ABSTRACT:
An electrical pressure signal that varies directly in magnitude with changes of fuel line pressure at the fuel injector is raised to a selected mathematical power. This signal is then differentiated to detect the negative rate thereof that occurs at the point of inflection upon the start of fuel injection and a "start of fuel injection" output signal is produced in response to the detection of the point of inflection as indicated by the negative rate.

REFERENCES:
patent: 3731527 (1973-05-01), Weaver
patent: 4266427 (1981-05-01), Wesley

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