燃氣發(fā)電機組的點火系統(tǒng)與柴油發(fā)電機組明顯不同，其中點火提前角就是一個特別重要的基本參數(shù)。在燃氣發(fā)電機組運轉(zhuǎn)時，準確的點火提前角參數(shù)是實現(xiàn)機組精確點火的必要條件之一。濰柴柴油機配件下面我們就來看一下燃氣發(fā)電機組點火提前角的調(diào)整是怎樣的。
The ignition system of gas generator set is obviously different from that of diesel generator set, in which the ignition advance angle is a particularly important basic parameter. Accurate ignition advance angle parameters are one of the necessary conditions for achieving precise ignition of gas generator units during operation. Below, we will take a look at the adjustment of the ignition advance angle of the gas generator set for Weichai diesel engine accessories.
上止點指針對準缸壓縮終點的飛輪刻度“o”，飛輪上o刻度前后各約600范圍內(nèi)貼上示波紙，并在紙上標注和飛輪刻度同樣的度數(shù)，把加長的缸高壓電纜，其一端插入點火線圈輸出端，另一端則放在飛輪指針的尖端處，外露的電線與示波器紙距離約2-4mm，然后使用起動馬達拖動發(fā)動機旋轉(zhuǎn)，這時高壓電纜外露的電線與示波器紙之間出現(xiàn)火花，并把示波器紙擊穿，停止起動馬達后，取下示波器紙，按火花擊穿位置，即可確定點火提前角。
The top dead center pointer is aligned with the flywheel scale "o" at the end of the compression of the first cylinder. An oscilloscope paper is pasted within a range of approximately 600 before and after the o scale on the flywheel, and the same degree as the flywheel scale is marked on the paper. One end of the extended high-voltage cable of the first cylinder is inserted into the output end of the ignition coil, and the other end is placed at the tip of the flywheel pointer. The exposed wire is about 2-4mm away from the oscilloscope paper, and then the starting motor is used to drag the engine to rotate, At this point, there is a spark between the exposed wire of the high-voltage cable and the oscilloscope paper, and the oscilloscope paper is broken down. After stopping the starting motor, remove the oscilloscope paper and press the spark breakdown position to determine the ignition advance angle.

柴油機配件如發(fā)現(xiàn)點火提前角與規(guī)定值不符，可進行精確調(diào)整。方法為：松開磁電機與傳動裝置的兩個螺釘，磁電機可沿傳動軸轉(zhuǎn)動。磁電機中間位置向自由端方向轉(zhuǎn)動至大位置時，點火提前角滯后約10度曲軸轉(zhuǎn)角。
If the ignition advance angle of diesel engine accessories is found to be inconsistent with the specified value, precise adjustments can be made. The method is to loosen the two screws of the magneto and the transmission device, and the magneto can rotate along the transmission shaft. When the middle position of the magneto rotates towards the free end direction to the maximum position, the ignition advance angle lags behind by about 10 degrees at the crankshaft angle.
反之向輸出端轉(zhuǎn)動至大位置時，點火提前角提前約10度曲軸轉(zhuǎn)角。根據(jù)實際測出提前角的大小，按照一定方向進行調(diào)整，調(diào)整后再使用拖動法，重復(fù)檢查點火提前角，直到調(diào)整到規(guī)定值。
On the contrary, when turning to the maximum position towards the output end, the ignition advance angle is advanced by about 10 degrees to the crankshaft angle. Based on the actual measurement of the advance angle, adjust it in a certain direction, and then use the drag method to repeatedly check the ignition advance angle until it is adjusted to the specified value.
柴油機配件通過以上的方法就可以確定點火提前角的精確數(shù)值了，特別需要注意的是，在使用拖動法檢查點火提前角時，應(yīng)關(guān)閉燃氣閥，保證燃氣發(fā)電機組在起動馬達拖動時不著火運轉(zhuǎn)。
The precise value of the ignition advance angle can be determined for diesel engine accessories through the above methods. It is particularly important to note that when using the drag method to check the ignition advance angle, the gas valve should be closed to ensure that the gas generator set does not catch fire when the starting motor is dragged.
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