What is the poor performance when the electric butterfly valve is damaged
In the previous article, we introduced the use of electric butterfly valves in vehicles. Electric butterfly valves always fail and are damaged due to some factors. What are the manifestations of electric butterfly valves in vehicles that are damaged? What are the methods for judging the damage of electric butterfly valve? Now let's understand what the bad performance is when the electric butterfly valve is damaged and how to judge the failure!
What is the poor performance when the electric butterfly valve is damaged?
1. When passing through potholes and undulating roads, the bouncing of body ripples increases, and sometimes the sound of metal collision comes from the front of the car.
2. When the car goes through a bend, the butterfly valve vibrates too much up and down, resulting in poor tire grip and tracking performance, which often leads to a lack of confidence in turning.
3 Sometimes I can hear the sound of "clunk, clunk" coming from the head of the car. The number of vehicle vibrations increases. I think the car has no buffer and is not warm.
4. Due to the weakening or loss of the ability to absorb residual vibration, the vehicle is prone to alarm when slightly vibrated in a stationary state
Judgment method for failure and damage of electric butterfly valve:
1. How to judge the reliability of the rear electric butterfly valve of the vehicle: put the vehicle on a flat place, press down the trunk with your hand (the trunk cover of a tall SUV also stops when it is turned over), and then release it. It is normal for the vehicle to stop after maintaining 2-3 jumps and rebounds.
2. Judgment method for electric butterfly valve at the rear of the vehicle: put the vehicle on a flat place, press the bumper forcefully (press the front part of the vehicle also works), and then release it. If the vehicle bounces back 2 to 3 times, it indicates that the electric butterfly valve works well.
3 When driving at a low speed, brake suddenly. If the car shakes violently and the human body feels uncomfortable, then the electric butterfly valve is very likely to be damaged.
4. The car stops after driving about 10km on the road with poor road conditions, and touches the shell of the electric butterfly valve with your hand. If you feel that the shell temperature does not have a certain amount of heat or is constantly cold, it is clarified that there is no resistance inside the electric butterfly valve, and the electric butterfly valve does not work properly.
5. Lift the vehicle or turn the wheels to check the appearance of the electric butterfly valve. If there is obvious oil stain (usually more than 1/2 of the total length), suggest changing it.
6. Break off the dust boot of the electric butterfly valve. If the rubber boot of the buffer block is damaged, the electric butterfly valve is also severely impacted and damaged or has a bad impact in most cases.
The electric butterfly valve of the vehicle is damaged. We can judge the damage of the electric butterfly valve by pressing the bumper of the vehicle! How to check after disassembly? Push and pull the electric butterfly valve tappet 5-8 times manually when the electric butterfly valve is in a relaxed state; The electric butterfly valve can extend automatically, and the damping force of the electric butterfly valve can be judged by 2-3 times of pushing and pulling. If the retraction and retraction have proper damping force and can extend naturally, it indicates that the electric butterfly valve is normal.