Process and device for sensing and evaluating knocking combustio

Details Process and device for sensing and evaluating knocking combustio Process and device for sensing and evaluating knocking combustio

1991-06-20

1993-12-21

Chapman, John E.

Measuring and testing

Engine detonation

Combustion signal compared to reference signal varied by a...

G01L 2322

Patent

active

052712656

ABSTRACT:
In a process and device for sensing and evaluating knocking combustion during operation of an internal combustion engine the electromagnetic radiation in a combustion chamber thereof, which changes upon knocking combustion, is detected and transmitted to a measuring and/or processing device. The occurrence of knocking combustion can be precisely determined by measuring the rate of increase in the intensity of the electromagnetic radiation in a volume of the open combustion chamber which is displaced from the spark plug and which is less than 0.04%, preferably 0.004%, of the displacement volume in the top piston dead center.

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