Air restriction derate for internal combustion engines

Details Air restriction derate for internal combustion engines Air restriction derate for internal combustion engines

1992-07-07

1993-04-27

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02M 5100

Patent

active

052052613

ABSTRACT:
An apparatus is provided for operating an internal combustion engine having an inlet air filter and a plurality of solenoid operated fuel injection units adapted to receive fuel injection signals and responsively inject fuel into associated engine cylinders. The apparatus includes a sensor adapted to sense a level of clogging of the air filter and responsively produce a clogging level signal. An electronic controller is adapted to produce the fuel injection signals as a function of sensed operating parameters and in accordance with a preselected horsepower curve. The controller is further adapted to receive the clogging level signal, compare the clogging level signal to a preselected threshold and limit the maximum engine horsepower in response to the clogging level signal being equal to or greater than the preselected threshold.

REFERENCES:
patent: 4157701 (1979-06-01), Holtrop et al.
patent: 4987877 (1991-01-01), Nakinawa
patent: 5007399 (1991-04-01), Nakinawa
patent: 5016595 (1991-05-01), Kawai et al.
patent: 5050565 (1991-09-01), Ishihara et al.
patent: 5139001 (1992-08-01), Tada

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