[交通運輸]中國重汽天然氣發(fā)動機培訓部分英文-資料下載頁
2025-01-15 19:19本頁面
【正文】 temperature feedback signal signal is used to adjust the oxygen sensor readings. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 50 camshaft position sensor (CAM) and crankshaft position (CNP) sensor The crankshaft position sensor provide engine speed information, the camshaft position sensor notice ECM which cylinder in pression process, and sent out the ignition time instructions. ECM is just in the bustion cyclic to give the ignition coil power supply. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 51 11. sparking coil ECM system control is located directly on the spark plug the high energy ignition coil, not through any high voltage wires. Change cycle is 60000 kilometers. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 52 12. spark plug High power rareness burning engine necessary voltage can be up to 40 KV or higher, with the passage of time, the spark plug gap will gradually be corrosion and expand. Spark plug should be in first ~ mm. Use a special tool tear open outfit. CNHTC39。s factory spark plug for NGK platinum spark plug, type: PFR7BD. Change cycle is 60000 kilometers. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 53 13. Waste gas door control valves Waste gas door control valves as a proportion tee electromechanical electromagic valve, adjust the ECM pulse width can realize in any case the precise booster control. This device is equivalent to a single class pressure regulator, used in the waste gas door the implementation of the pressure power control. The pressure sensor to the ECM feedback information, provide the closing the feedback loop control to ensure that can maintain exhaust target location and boosting pressure door. The voltage and current of the valve by ECM control. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 54 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 55 field waste gas oxygen sensor Wide field waste gas oxygen sensor (UEGO) used in the rareness burning application, used to determine the inlet air fuel than the balance. If discharge air too thick, will be in the sensor within the a pump current to burn fuel consumption not to achieve the balance, conversely, if a rare discharge air, the reverse produce a pump current consumption of the excess oxygen or free oxygen to achieve the balance. When free oxygen or free fuel and, voltage feedback signal is returned to the basic value. Produce the balance of the pump electric current and import supply than equivalent in proportion. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 56 15. Surge valve The surge valve is a turbine engine protection device. When the turbocharger high pressurization state in work and throttle close, in turbochargers and solar terms between door plank has great back pressure, this will make the supercharger suddenly stop working. The surge valve is in the closed position usually。 When opening, the turbocharger downstream of the high pressure flow into the backflow to the air, this will prevent turbocharger ponents accelerate wear and fatigue. 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 57 中國重汽天然氣發(fā)動機培訓 2022/2/12 濟南復強動力有限公司 58 Thanks!
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