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Causes of blockage of one-way throttle valve and treatment measures
reason
1. Mechanical impurities in the oil or dirt, asphalt, carbon residue and other dirt precipitated by oxidation are accumulated in the throttle gap.
2. As the oil ages or is squeezed to produce charged polarized molecules, and there is a potential difference on the metal surface of the throttling gap, the polarized molecules are adsorbed to the surface of the gap to form a strong boundary adsorption layer, and the thickness of the adsorption layer It is generally 5 to 8 microns, which affects the size of the throttling gap. When the above accumulated and adsorbed matter grows to a certain thickness, it will be washed away by the liquid flow, and then reattached to the valve port. Repeatedly in this way, the flow pulsation is formed.
3. When the valve port pressure difference is large, because the valve port temperature is high, the degree of liquid being squeezed is increased, and the metal surface is more susceptible to friction to form a potential difference. Therefore, when the pressure difference is large, clogging is easy to occur.
Treatment measures
1. Choose a thin-blade orifice with a large hydraulic radius.
2. Precise filtration and regular oil change.
3. Appropriately reduce the pressure difference before and after the throttle.
4. Use metal materials with small potential difference, choose oil with good oxidation resistance and stability, and reduce the surface roughness of the orifice.
Causes of blockage of one-way throttle valve and treatment measures,If necessary, please contact us to consult us
1. Mechanical impurities in the oil or dirt, asphalt, carbon residue and other dirt precipitated by oxidation are accumulated in the throttle gap.
2. As the oil ages or is squeezed to produce charged polarized molecules, and there is a potential difference on the metal surface of the throttling gap, the polarized molecules are adsorbed to the surface of the gap to form a strong boundary adsorption layer, and the thickness of the adsorption layer It is generally 5 to 8 microns, which affects the size of the throttling gap. When the above accumulated and adsorbed matter grows to a certain thickness, it will be washed away by the liquid flow, and then reattached to the valve port. Repeatedly in this way, the flow pulsation is formed.
3. When the valve port pressure difference is large, because the valve port temperature is high, the degree of liquid being squeezed is increased, and the metal surface is more susceptible to friction to form a potential difference. Therefore, when the pressure difference is large, clogging is easy to occur.
Treatment measures
1. Choose a thin-blade orifice with a large hydraulic radius.
2. Precise filtration and regular oil change.
3. Appropriately reduce the pressure difference before and after the throttle.
4. Use metal materials with small potential difference, choose oil with good oxidation resistance and stability, and reduce the surface roughness of the orifice.
Causes of blockage of one-way throttle valve and treatment measures,If necessary, please contact us to consult us
