Fuel injection quantity sensing apparatus for an internal combus

Details Fuel injection quantity sensing apparatus for an internal combus Fuel injection quantity sensing apparatus for an internal combus

1982-10-25

1985-03-12

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123501, 123446, 123387, 123494, 73119A, F02D 104, F02D 106

Patent

active

045038201

ABSTRACT:
A piezoelectric sensor produces a first signal indicative of the pressure of fuel in a working chamber defined by the plunger housing and the inner end of a fuel distributing plunger reciprocating through the plunger housing. A threshold discriminator responds to the signal and produces a second signal indicative of the interval during which the first signal exceeds a fixed level. A counter counts clock pulses in the presence of the second signal and outputs its count value to a calculating unit which calculates a fuel injection quantity on the basis of the count value and engine speed sensed in accordance with the desired relationship amount count value, engine speed and fuel injection quantity.

REFERENCES:
patent: 4012948 (1977-03-01), Kuno
patent: 4064855 (1977-12-01), Johnson
patent: 4066059 (1978-01-01), Mayer
patent: 4136558 (1979-01-01), Lukes
patent: 4187720 (1980-02-01), Baker
patent: 4200075 (1980-04-01), Takahashi
patent: 4337650 (1982-07-01), Brandt
"Electronic Control of Diesel Passenger Cars", by Hermann Eisele--Society of Automotive Engineers, Inc.-Technical Paper Series, Feb. 25-29, 1980.

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