Nowadays, most of the special vehicles are diesel engines, such as sewage suction trucks , garbage trucks, etc. Diesel engines are a type of compression ignition internal combustion engine. The diesel engine uses diesel as its fuel. The diesel engine works by compressing the diesel to TDC before it is injected into the cylinder with high pressure. It forms a combustible gas mixture with the compressed air in the cylinder, and then uses the compression at the end of the compression. At high temperatures, the mixture burns on its own. It can be seen that the key to whether the diesel engine can be smoothly started is that the diesel injected into the cylinder can not rapidly form a mixed gas with the compressed air and burn.

The conditions for smoothly starting the diesel engine are as follows: the starting speed must be sufficient, because the starting speed is high, the gas leakage is small, the time for the compressed air to transfer heat to the cylinder wall is very short, and the heat loss is small, so the air temperature and pressure at the end of the pressure can be increased. The tightness of the cylinder must be good so that the leakage of gas at start-up is reduced and the air temperature and pressure at the end of the compression are increased. The oxygen content of the compressed gas mixture should exceed a certain concentration to ensure that the diesel ignition conditions. There must be sufficient starting system power to ensure that the starting speed and starting torque overcome the compression resistance and internal frictional torque.

In the northern winter or western highland areas, the temperature is relatively low compared with other places. When the special vehicles are used in daily use, there are difficulties in starting. The main reason is that the air temperature at the end of the cylinder compression of the diesel engine does not reach the start. The required temperature, and the pressure of the compressed air in the cylinder is also significantly lower than the pressure required during normal start-up. The battery's optimal operating temperature is in the range of 20 degrees Celsius to 40 degrees Celsius degrees Celsius. As the ambient temperature gradually decreases, the output capacity of the battery will gradually decrease, resulting in a decrease in the power of the diesel starting system.

When the temperature is lower, the viscosity of the lubricating oil increases, and the resistance between the friction pairs increases, so that the diesel engine start speed decreases. Similarly, the viscosity of diesel oil also increases, resulting in deterioration of the atomization quality of the injection and prolonging the ignition delay. The air density and the oxygen content in the air decrease as the altitude increases. Therefore, in the plateau region, the higher the altitude, the more difficult it is for the diesel engine to start. (Wen/Jun Xun)

We have two models cracking filling machine:GYGF500B and GYGF500T, Crack Filling Machine exists for filling cracks on the road surface, which is independently researched and developed by our company. This equipment is used to erase the cracks on the road surface to prevent the water from sinking into the base course which will speed up the crack propagation to form pits. This maintenance process will improve the road quality, prolong its service life and postpone the expensive heavy maintenance.

GYGF500TTechnical Parameters

Generator set	18Kw
Air compressor	0.6m3/min
Burner	1.0×105cal/h
Agitating motor	0.75Kw
Discharging pump motor	1.5Kw
Volume of sealant tank	380L
Length of spray gun hose	5.5m
Thermal oil volume	200L
Trailer	PT-5

Performance Characteristics

2. Sealant discharging volume is regulated by frequency converter. Sealant is pumped without delay to minimize wear of material pump and prolong its service life. Return suction solves the problem of drop pollution to the pavement.

3. Discharging hose is electrical heated to prevent sealant blocking the hose, light, convenient and flexible in use.

4. All the units of cracking filling machine for blowing, cleaning and heating are concentrated in one system. Long-life imported air compressor is applied with advantages of energy saving, low noise and long service life.

Crack Filling Machine

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Henan Gaoyuan Road Maintenance Equipment Co., Ltd. , https://www.sgroadmachinary.com