High Quality 12 Ton Diesel Forklift Color Yellow

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1. What is the ignition angle: the ignition angle, also known as the fuel injection advance angle, is an angle of the crankshaft when diesel fuel is injected into the cylinder before the top dead center of the engine piston;

2. What is compression top dead center: when the intake valve is opened, fresh air enters the cylinder, the piston reaches the lowest point of the cylinder is called intake stroke, when the intake valve is closed, the piston moves upwards, and reaches the highest point is called compression stroke, also called compression At the top dead center, before reaching the highest point, the injector injects diesel fuel into the cylinder, burns it, generates high-temperature and high-pressure gas, and pushes the piston down to do work. This is called the work stroke. When the piston reaches the lowest point, the exhaust valve opens and the piston Move upward to discharge the exhaust gas in the cylinder. When the piston almost reaches the top dead center of the piston, the intake valve slowly opens and the exhaust valve closes slowly. When the intake valve opens, the exhaust valve closes slowly. The overlap angle is called intake. Exhaust valve overlap angle, so the four-stroke engine makes 2 revolutions per power stroke. If the standard speed of an engine is 2200 revolutions per minute, then the diesel pump only needs to rotate 1100 revolutions;

3. What is the advance angle: Generally, the advance angle of an engine with an advancer is generally 10 to 15 degrees, and a diesel pump without an advancer is generally 19 to 25 degrees. This is determined according to the structure of the engine and the structure of the fuel system. Yes, because the high pressure diesel produced by the diesel pump reaches the cylinder for a certain period of time, when it reaches the cylinder, the compressed air in the cylinder must be at the highest temperature;

4. What performance is the phenomenon of late ignition? The first start emits white smoke, the speed does not rise after starting, and the flame is turned off. As long as it starts in the morning, it can be started all day long, but the ambient temperature is preferably above 0 degrees, because of what , Because we are here above 0 degrees, I think as long as the corresponding diesel can be correctly added, it can start normally at minus 10 degrees. It is better to preheat first if there is preheating. If there is no white smoke, there must be no diesel injection into the cylinder;

5. The relationship between the ignition angle and the engine, if the ignition angle is much later than the specified, it will be difficult to start. It’s directly related to the high water temperature in summer. If you start to emit black smoke early, the most obvious manifestation is the sound of knocking the cylinder. As long as the ignition time is set just right, the water temperature in summer is very low and low. There is no problem at all in the water tank. I have only encountered it twice before, once with Chaochai 4102. After a summer, there is no temperature in the water tank. One is the Yunnei 4100 engine, so the ignition angle is special for the other. It is the fatal connection with the engine after the overhaul.

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