Lubrication:

柴油發(fā)電機組只要是處于運轉(zhuǎn)的狀態(tài)下，內(nèi)部機件便會產(chǎn)生摩擦，轉(zhuǎn)速愈快，摩擦就愈激烈，例如活塞部份，溫度更可高達(dá)攝氏兩百多度以上，此時如果沒有油的存在柴油發(fā)電機組，溫度便會高到將整個引擎燒掉。機油的一項功用就是利用油膜覆蓋于引擎內(nèi)部金屬表面，以減少金屬之間的摩擦阻力。

As long as the diesel generator set is in operation, the internal parts will produce friction. The faster the speed is, the more intense the friction will be. For example, the temperature of the piston can be more than 200 degrees Celsius. At this time, if there is no oil in the diesel generator set, the temperature will be high enough to burn the whole engine. One function of engine oil is to cover the metal surface inside the engine with oil film to reduce the friction resistance between metals.

散熱作用：

Heat dissipation:

機組本身的散熱，除了靠冷卻系統(tǒng)以外，機油也是一個重要角色，因為機油會流經(jīng)引擎內(nèi)部各處，可帶走機件摩擦產(chǎn)生的熱，而距離冷卻系統(tǒng)較遠(yuǎn)的活塞部份，也可經(jīng)由機油獲得一些冷卻效果。

In addition to the cooling system, the engine oil also plays an important role in the heat dissipation of the unit itself, because the engine oil will flow through all parts of the engine, which can take away the heat generated by the friction of parts, and the piston part far away from the cooling system can also obtain some cooling effect through the engine oil.

清潔作用：

Cleaning effect:

發(fā)動機長期運轉(zhuǎn)產(chǎn)生的碳與燃燒剩下的殘渣，會附著于引擎內(nèi)部各處，如果未經(jīng)適當(dāng)?shù)奶幚恚銜绊懸娴墓δ?，尤其這些東西積在活塞環(huán)與進(jìn)、排氣門等處，會產(chǎn)生積碳或黏著性物質(zhì)，引起爆震、頓挫不順、耗油加大，這些現(xiàn)象都是引擎的大敵。機油本身具有清凈分散作用，可以不使這些碳與殘渣堆積在引擎內(nèi)部，讓它們形成小顆粒，而懸浮在機油里。

The carbon produced by the long-term operation of the engine and the residue left by combustion will be attached to all parts of the engine. If not properly treated, it will affect the function of the engine. In particular, these things will accumulate in the piston ring, inlet and exhaust valves, produce carbon or adhesive substances, causing detonation, sluggish and increased fuel consumption. These phenomena are the great enemies of the engine. The engine oil itself has the function of cleaning and dispersing, which can not make these carbon and residues accumulate in the engine, let them form small particles and suspend in the engine oil.

防蝕、防銹作用：

Corrosion and rust prevention:

柴油發(fā)電機組過一段時間的行駛，機油內(nèi)或多或少會自然生成種種腐蝕性的氧化物，尤其是這些腐蝕性物質(zhì)中的強酸，更容易對引擎內(nèi)部機件造成侵蝕;同時燃燒所生成的水分，雖然大部分會隨廢氣被帶走，但還是有少許水分殘留下來，于是也會損害引擎。所以機油中的添加劑便有防蝕、防銹的功用，以保玉柴發(fā)電機組護(hù)引擎不受這些有害物質(zhì)的傷害。

After a period of driving of diesel generator set, all kinds of corrosive oxides will be naturally generated in the engine oil, especially the strong acid in these corrosive substances, which is more likely to erode the internal parts of the engine; At the same time, although most of the water generated by combustion will be taken away with the exhaust gas, there is still a little water left, which will also damage the engine. Therefore, the additives in the engine oil can prevent corrosion and rust, so as to protect the engine of Yuchai generator set from these harmful substances.

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