The engine system structure of the generator set is mainly valve distribution structure, crank connecting rod structure and body structure. The engine system is mainly covered in these three structures, namely cooling system, ignition system, fuel supply system, lubrication system and starting system. These five systems are the subdivision of the three structures.

除此之外，其中配氣系統(tǒng)還可以進(jìn)行細(xì)分，分成兩個(gè)不同的結(jié)構(gòu)，分別是直推式和搖臂式，其中直推式結(jié)構(gòu)的組成部分為復(fù)雜，通過正氣門和氣門彈簧進(jìn)入，經(jīng)過凸輪軸和正時(shí)齒輪進(jìn)行工作后由排氣門排出。發(fā)動(dòng)機(jī)系統(tǒng)中支持發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)主要是通過四個(gè)沖程提供能力，分別是燃燒沖程、排氣沖程、壓縮沖程和進(jìn)氣沖程，通過四個(gè)沖程的交替運(yùn)作，在循環(huán)過程中進(jìn)行周期性運(yùn)轉(zhuǎn)，曲柄的運(yùn)轉(zhuǎn)周期一般為兩周。

In addition, the valve system can be subdivided into two different structures, namely direct push type and rocker arm type. The components of direct push structure are the most complex, which enter through the positive valve and valve spring, work through the camshaft and timing gear, and then discharge from the exhaust valve. In the engine system, the engine operation is mainly supported by four strokes, namely combustion stroke, exhaust stroke, compression stroke and intake stroke. Through the alternating operation of the four strokes, the periodic operation is carried out in the cycle process, and the operation cycle of the crank is generally two weeks.

現(xiàn)如今，康明斯發(fā)電機(jī)組所使用的燃料是汽油和柴油，這兩種燃料廣泛運(yùn)用于電動(dòng)機(jī)中，一般電動(dòng)機(jī)分為汽油電動(dòng)機(jī)和柴油電動(dòng)機(jī)，但兩者的運(yùn)作原理沒有太大區(qū)別。

Nowadays, the fuels used by Cummins generator set are gasoline and diesel. These two fuels are widely used in motors. Generally, motors are divided into gasoline motor and diesel motor, but their operating principles are not very different.

發(fā)動(dòng)機(jī)的運(yùn)轉(zhuǎn)依靠四個(gè)沖程，沖程中的活塞運(yùn)轉(zhuǎn)一個(gè)周期，由下方運(yùn)轉(zhuǎn)到上方，這就是一個(gè)沖程的運(yùn)轉(zhuǎn)，運(yùn)轉(zhuǎn)的過程中注意排氣孔、閉氣孔和換氣孔的開關(guān)，在油缸的汽油進(jìn)行沖程運(yùn)動(dòng)時(shí)被吸到上方，需要進(jìn)行關(guān)閉排氣孔進(jìn)行壓縮沖程，活塞是沖程中重要的一部分，根據(jù)活塞判斷沖程的運(yùn)行。活塞從上方到下方，通過火花塞對(duì)氣體進(jìn)行點(diǎn)燃，從而驅(qū)動(dòng)康明斯發(fā)電機(jī)組的向前運(yùn)行。

The operation of the engine depends on four strokes. The piston in the stroke runs for one cycle, running from the bottom to the top, which is the operation of one stroke. During the operation, pay attention to the switches of exhaust hole, closed hole and exchange hole. When the gasoline in the oil cylinder is sucked to the top during the stroke movement, it is necessary to close the exhaust hole for compression stroke. The piston is an important part of the stroke, Judge the operation of the stroke according to the piston. From top to bottom, the piston ignites the gas through the spark plug to drive the forward operation of Cummins generator set.

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