Means and method for measuring and controlling smoke from an int

Details Means and method for measuring and controlling smoke from an int Means and method for measuring and controlling smoke from an int

1990-01-11

1991-12-31

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, 123478, 204424, F02M 5100

Patent

active

050762370

ABSTRACT:
A means and method for measuring and controlling smoke emissions from an internal combustion engine using a luminosity probe which measures the luminosity of soot in a combustion chamber of the engine. The luminosity signals generated by the probe are then used to measure smoke emissions based on an equation developed by the inventors which correlates the actual smoke being emitted from the exhaust with a predicted smoke emission value resulting from the luminosity signals. This smoke emission measurement can, in turn, be used in an engine control loop to control smoke emissions.

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H. Hiroyasu, M. Arai and K. Nakanishi, Soot Formation and Oxidation in Diesel Engines, Copyright 1980 Society of Automotive Engineers, Inc.
Diesel Engine Sensing Techniques, Automotive Engineering, Jun. 1988.

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