Method of monitoring emission of nitrogen oxides by an internal

Details Method of monitoring emission of nitrogen oxides by an internal Method of monitoring emission of nitrogen oxides by an internal

1991-09-26

1992-09-29

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Fuel injection system

123 25J, 123486, 73116, F02B 7708, F02P 5155

Patent

active

051506823

ABSTRACT:
In a method of monitoring the emission of nitrogen oxides NO.sub.x in the exhaust gas of an internal combustion engine, the engine to be monitored incorporates an accelerometer used as a sensor. The signals produced by the accelerometer are analyzed to determine the NO.sub.x concentration in the engine exhaust gas by comparison with data supplied by an accelerometer fitted to a control engine.

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French Search Report
Revue Automobile, vol. 85, No. 15, Apr. 5, 1990, "du capteur de vibrations au diagramme de pression de combustion", Berne CH, pp. 17-17, by M. B. Mahr.

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