What is the function of the valve spring seat?

Most people are not very clear about the role of valve spring seats? Next, the editor of the valve spring seat manufacturer will explain the function of the valve spring seat in detail for you? The function of the valve spring seat is to ensure that the valve immediately seats and fits tightly, avoiding valve pulsation during engine vibration and damaging its sealing performance. The installation preload function caused by preloading during valve spring installation is to overcome the inertial force of the valve and transmission parts during valve closing, eliminate the gap between the transmission parts caused by the inertial force, and achieve its function.

1. Increasing the natural vibration frequency of the valve spring means trying to increase its stiffness, such as increasing the diameter of the steel cable or reducing the diameter of the spring coil. This method is relatively simple, but due to the high spring stiffness, it increases power consumption and impact load between parts;

2. Using dual valve springs, install two inner and outer springs with different diameters for each valve. Because the natural vibration frequencies of the two springs are different, when one spring resonates, the other spring can play a damping role. Reverse rotation can prevent one spring from getting stuck in the other spring when it breaks, affecting the spring to get stuck or damaged. In addition, if one spring breaks, the other spring can still keep the valve from falling into the cylinder;

3. When using unequal pitch springs, the ends with small pitches gradually overlap, the effective number of turns gradually decreases, and the natural frequency gradually increases, making resonance impossible;

4. Using a single spring with equal pitch, an interference damping friction plate is added to its inner ring to eliminate resonance.