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装载机发动机结构的特点是什么?

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装载机发动机结构的特点是什么?

发布日期:2018-02-05 作者:贵州直喷装载机 点击:

装载机发动机结构的特点是什么?

What are the features of the loader's engine structure?

贵州直喷装载机

1、进气过程

1. The intake process

装载机曲轴旋转,活塞从上止点向下止点移动,此时进气门已打开。由于活塞的下行,活塞上方容积增大,产生真空吸力,燃油和空气经化油器雾化混合成可燃混合气,经进气门被吸入气缸。活塞到下止点后,进气门关闭,进气行程结束。

The loader crankshaft rotates and the piston moves down the stop point at the top and stop point, when the intake valve is opened. As the piston descends, the volume above the piston increases, resulting in vacuum suction. The fuel and air are atomized and mixed into combustible mixture through the carburetor, which is sucked into the cylinder through the intake valve. After the piston reaches the lower stop point, the intake door is closed and the intake stroke ends.

2、压缩行程

2. Compression stroke

贵州直喷装载机认为装载机进气行程终了时,进排气门均关闭。装载机活塞从下止点向上止点移动,使进入气缸的可燃混合气被压缩,活塞将到上止点时,混合气的压力可达1470kPa以上,温度可达250℃-300℃,为混合气体的燃烧作功创造了良好的条件。这一行程在活塞到上止点时结束。

The Guizhou direct injection loader holds that the intake and exhaust doors are closed when the intake stroke of the loader is ended. The piston of the loader moves upward from the bottom dead center, so that the combustible mixture entering the cylinder is compressed, and the piston will go to the top dead center. The pressure of the mixture can reach more than 1470kPa. The temperature can reach 250 degrees -300 centigrade, which creates a good condition for the combustion of the mixed gas. This stroke ends at the piston to the top stop.

3、作功行程

3. Work stroke

当装载机压缩行程活塞接近上止点时,火花塞电极间产生电火花,将被压缩的可燃混合气点燃,燃烧的气体迅速膨胀,使气缸内的瞬时压力达2940kPa-4410kPa,温度达1800℃-2000℃,在高压气体的作用下,活塞被迫从上止点向下止点运动,通过杆,将高压气体的推力传给曲轴使之旋转作功,实现热能转变为机械能。

When the compression stroke the piston nears TDC loader, Spark Spark plug electrodes, the mixture is compressed ignition, combustion gas expands rapidly, the instantaneous pressure in the cylinder is 2940kPa-4410kPa, temperature of 1800 DEG -2000 DEG, under the action of the high-pressure gas, the piston is forced from TDC down only a little exercise, through the rod, the high pressure gas thrust to the crankshaft rotation so as to achieve power, heat energy into mechanical energy.

4、排气行程

4. Exhaust stroke

装载机在作功行程末,活塞被推到接近下止点时,排气门打开,活塞由下止点向上止点运动,气缸内燃烧后的废气在活塞的推动下,经排气门排出气缸,活塞到上止点后,排气门关闭,这一行程结束。装载机排气行程结束时,一个工作循环完成。只要曲轴连续转动,进气、压缩、作功、排气就能周而复始地循环进行。

The loader on the power stroke, the piston is pushed to the next stop point, the exhaust valve opens, the piston is the only point to the TDC, the cylinder combustion gas in piston driven by the exhaust valve cylinder, piston to TDC, the exhaust valve closes and the the end of the trip. At the end of the loader's exhaust stroke, a working cycle is completed. As long as the crankshaft rotates continuously, the intake, compression, work, and exhaust can be circulated round and round.


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关键词:贵州直喷装载机,直喷装载机,直喷装载机批发

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