The intake and exhaust system of Liugong excavator parts is the same as our human breathing system. Many complicated links are completed between breathing and breathing, but in many links, fresh air is required for incineration to ensure engine power output. . So how much influence does the intake and exhaust system have on the excavator?

一.什么是进排气体系？

The intake and exhaust system continuously sends fresh air or combustible mixture into the incineration chamber during the operation cycle of the internal combustion engine, and then discharges the incineration exhaust gas into the atmosphere.

1. The function of the intercooler of Liugong excavator parts is to lower the temperature of the supercharged gas to improve the charging efficiency and increase the air intake.

2. The function of the air filter is to remove the dust and sand contained in the air to reduce the wear of the cylinder, piston and piston ring.

3. The exhaust gas turbocharger of Liugong excavator parts uses the exhaust gas after incineration to drive the turbine to roll, thereby driving the compressor impeller installed coaxially with it. The impeller rolls to press more fresh air into the cylinder.

4. Air intake is the main factor determining engine power! ! !

5. The cleanliness of the intake air is an important factor affecting the life of the engine! ! ! !

2. Faults in the intake and exhaust system and maintenance methods

1. Liugong excavator parts turbocharger-compressor front pipeline leakage:

2. Foreign matter such as dust enters the engine, causing rapid wear of the cylinder;

3. The compressor blades are damaged, and the supercharger is damaged.

4. The turbocharger-compressor front pipeline is blocked

5. The smooth engine oil that is easy to form a supercharger enters the cylinder and burns through the compressor end, causing the vehicle to burn engine oil.

6, Liugong excavator parts turbocharger-air leakage in the pipeline after the compressor:

7. Lack of air intake / lack of power

8. Dust may be inhaled at idling speed or at low load and low speed!

9. Liugong excavator parts turbocharger-the pipeline behind the compressor is blocked:

10. Lack of air intake / lack of power

11. Air leakage in front of turbocharger-exhaust gas turbine:

12. Lack of exhaust gas, resulting in lack of air intake and lack of power.

13. The turbocharger-exhaust gas turbine rear pipeline is blocked:

14. The exhaust gas is not discharged smoothly, resulting in a lack of air intake and lack of power.

Note: Lack of the turbocharged air filter seal, cracked intake pipe bolt holes, inadequate air intake pipe sealing, defective air filter and careless maintenance will cause the turbocharger of Liugong excavator parts to wear, piston ring wear, piston strain, etc. Cylinder liner strain, etc.

Three, maintenance method

Intake system

1. Check whether there is dust on the inner wall of the pipeline, if there is dust, find the entry and exit points and deal with it immediately;

2. Check whether the installation bolts of the pipeline are loose or cracked, if they are loose, they must be tightened immediately, and if they are cracked, it is necessary to replace the defective parts;

3. Check whether the air intake pipe behind the turbocharger of the Liugong excavator is loose and leaking, and tighten it if necessary;

4. Check the hoop of the entire system, it is necessary to tighten it in place;

air filter

1. Regularly check the dust, dirt, etc. in the shell, pay attention to whether the shell is damaged, and replace it if it is damaged;

2. Check whether the air filter outlet pipe of Liugong excavator accessories is tightened in place, and replace it if necessary;

3. The main filter element is only allowed to be sorted 5 times, and it is necessary to replace it after 5 times, if it is damaged, it is necessary to replace it;

4. The safety filter element can only be replaced and cannot be arranged;

5. Pay attention to the dust valve and other joints;

air filter

1. After loosening the locking handle, remove the filter housing.

2. After loosening the second locking handle, remove the external filter element; in this operation, special care should be taken to ensure that no dust enters the bushing.

3. Check whether there is no dirt. If yes, clean the filter element as follows.

4. Blow the dehumidified compressed air from the inside of the filter element of Liugong excavator accessories (maximum pressure: 200 kPa). Do not use detergent; do not use diesel.

5. Do not hit the filter element with anything; check its condition before replacing it.

6. If cracks or damage are found, the filter should be replaced.

7. Check whether the gasket of the Liugong excavator accessories at the bottom is in good condition. Some filter systems are installed with secondary filter elements that do not need to be cleaned; the main filter element must be replaced every 3 times.

8. When reinstalling, repeat the above operations in reverse order.

Well, that's the end of today's excavator intake and exhaust system. Welcome to inquire about Liugong excavator accessories.

For more information about excavator parts, please visit Chuanna Industry (www.kscna.cn). I hope this article "Domestic Excavator Parts Represents the World Construction Machinery Industry Event" to be held in Munich, Germany! "Help everyone. If you still don’t understand, you can directly leave a message or consult Chuanna Hydraulics National Service Hotline 15850333149, we will solve your doubts as soon as possible!