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)還可以進行細分，分成兩個不同的結(jié)構(gòu)，分別是直推式和搖臂式，其中直推式結(jié)構(gòu)的組成部分為復雜，通過正氣門和氣門彈簧進入，經(jīng)過凸輪軸和正時齒輪進行工作后由排氣門排出。發(fā)動機系統(tǒng)中支持發(fā)動機運轉(zhuǎn)主要是通過四個沖程提供能力，分別是燃燒沖程、排氣沖程、壓縮沖程和進氣沖程，通過四個沖程的交替運作，在循環(huán)過程中進行周期性運轉(zhuǎn)，曲柄的運轉(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)電機組所使用的燃料是汽油和柴油，這兩種燃料廣泛運用于電動機中，一般電動機分為汽油電動機和柴油電動機，但兩者的運作原理沒有太大區(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)動機的運轉(zhuǎn)依靠四個沖程，沖程中的活塞運轉(zhuǎn)一個周期，由下方運轉(zhuǎn)到上方，這就是一個沖程的運轉(zhuǎn)，運轉(zhuǎn)的過程中注意排氣孔、閉氣孔和換氣孔的開關，在油缸的汽油進行沖程運動時被吸到上方，需要進行關閉排氣孔進行壓縮沖程，活塞是沖程中重要的一部分，根據(jù)活塞判斷沖程的運行。活塞從上方到下方，通過火花塞對氣體進行點燃，從而驅(qū)動康明斯發(fā)電機組的向前運行。

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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