Device and method for improving misfire of natural gas engine

The invention aims to provide a device and method for improving natural gas engine misfire, the device comprises an engine, an ECU, a gas inlet pipe and an exhaust pipe, the gas inlet pipe is connected with the engine through a gas inlet manifold, the exhaust pipe is connected with the engine throug...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MA WENJU, DING YU, YANG YU, WANG LIN, TAN TINGHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The invention aims to provide a device and method for improving natural gas engine misfire, the device comprises an engine, an ECU, a gas inlet pipe and an exhaust pipe, the gas inlet pipe is connected with the engine through a gas inlet manifold, the exhaust pipe is connected with the engine through an exhaust manifold, a natural gas supply system is mounted on the gas inlet pipe, and a natural gas flow sensor is mounted on the natural gas supply system; an air flow sensor is installed on an air inlet pipe in front of a natural gas supply system, a dimethyl ether injection device is installed on an air inlet manifold, a dimethyl ether injection device flow sensor is installed on the dimethyl ether injection device, and a wide-range oxygen sensor is installed on an exhaust manifold. The ECU is connected with the natural gas flow sensor, the air flow sensor, the dimethyl ether injection device and the wide-range oxygen sensor. According to the invention, the fire condition in the natural gas engine cylinder ca