Highland area wheel hydraulic excavator can not start the solution

Where there are people, there will be construction, and where there is construction, there will be wheeled hydraulic excavators, so the excavators are not only working in our plain areas, there will be some construction work in mountainous and plateau areas, and there will be a need for excavators. Many drivers will find that there are difficulties in starting vehicles when driving excavators to work in plateau areas. It takes a long time to start each time, so why do wheeled hydraulic excavators in plateau areas have start-up difficulties?

1. The terrain of the plateau area is generally relatively high, and its air pressure is relatively high. When the air pressure is high, the temperature will be relatively low, so the temperature in the plateau area will be 20-30 degrees lower than that in the plain area, and the limit temperature is about -40 ° C. The engine intake temperature and pressure are low, resulting in the end of the compression stroke can not reach the temperature pressure of compression combustion, so the engine will be difficult to start.

2. The oxygen content in the plateau area is generally relatively small, but also with the increase of altitude, the oxygen content will be lower and lower, when the altitude rises to more than 3000 meters, the air content is only 60% to 70% of the plain area, the oxygen content of the mixed gas inhaled by the diesel engine is too low, it will be difficult to start.

3. In addition, because the air temperature in the plateau environment is relatively low, the fluidity of the engine oil will become worse in the low-temperature environment for a long time, so the friction resistance between the various parts of the engine will also increase, resulting in the starting speed of the engine falling, so the starting speed of the wheeled hydraulic excavator will be slow.

The above is about the reasons for the difficulty of starting the wheeled hydraulic excavator in the plateau area, and I hope it can be helpful to you.

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