Barrack Technology Limited

Peter G Hartman

Steven L Plee

Donald J Remboski, Jr

Jay K Martin

Richard R Ross

J Paul Nolan

Robert W Law

An internal combustion engine is provided having a luminosity detector and an arrangement for measuring and controlling combustion phasing based on the location of particular gain independent parameters of the luminosity signal. The gain independent luminosity parameters are used to provide a basis for adjusting various parameters of the engine like fuel injection timing so that at least one gain independent parameter is located at a desired timing point in the combustion cycle to control combustion phasing. Alternatively, these gain independent luminosity parameters are used to determine the time in the combustion cycle at which certain combustion conditions occur. In this embodiment, the determined time of a combustion condition provides a basis for adjusting engine parameters so that the combustion condition occurs at a desired time in the combustion cycle to control combustion phasing.

Method and apparatus for measuring and controlling combustion phasing in

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.

Means and method for measuring and controlling smoke from an internal

A method and apparatus for controlling spark reignition in an internal combustion engine based on the detected luminosity or pressure in the combustion chamber is provided. Only the luminosity or pressure measurement may be used as a basis for this control. This method and apparatus is also capable of providing same cycle control of spark reignition.

Method and apparatus for controlling spark ignition in an internal

An internal combustion engine having a luminosity probe and an arrangement for measuring certain parameters such as IMEP, combustion chamber pressure, heat release and the like by measuring luminosity in the chamber and adjusting the running parameters of the engine to obtain the desired luminosity. Also disclosed is an arrangement for maintaining uniformity from cycle to cycle in a given combustion chamber and uniformity combustion in the combustion chambers of a multi-chamber engine.

Method of operating an engine and measuring certain operating parameters

An internal combustion engine having a luminosity probe and an arrangement for adjusting the running parameters of the engine to obtain the desired luminosity. Also disclosed is an arrangement for maintaining uniformity from cycle to cycle in a given combustion chamber and uniformity combustion in the combustion chambers of a multi-chamber engine.

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Worcester, MA, United States of America

Peter G Hartman