AIR-FUEL RATIO CONTROLLER OF GAS ENGINE

PURPOSE:To stably reduce the NOx in varying the humidity by comparing the output value of a lean oxygen sensor with the output desired value, and controlling an air-fuel ratio adjusting means so as to make both of them equal to each other. CONSTITUTION:Engine output value and atmospheric humidity bo...

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Bibliographische Detailangaben
1. Verfasser:	SHOJI FUJIO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To stably reduce the NOx in varying the humidity by comparing the output value of a lean oxygen sensor with the output desired value, and controlling an air-fuel ratio adjusting means so as to make both of them equal to each other. CONSTITUTION:Engine output value and atmospheric humidity both are taken in, operating an oxygen content desired value in exhaust gas, and the output desired value of a lean oxygen sensor 11 is operated from the oxygen content desired value in the operated exhaust gas. In succession, the set value of an air-fuel ratio adjusting means 9 is operated from the output desired value of the lean oxygen sensor 11, and the air-fuel ratio adjusting means 9 is set up as the operated result. Furthermore, the output value of the lean oxygen sensor 11 is taken in, comparing it with the output desired value, and the air-fuel ratio adjusting means 9 is controlled so as to make both of them equal to each other. Here, in the case where the air-fuel ratio adjusting means 9 is of a gas bypass valve, valve opening of this bypass valve is controlled for the end.