Causes and solutions for low gear oil pump flow
Causes and solutions for low gear oil pump flow 1. Causes of stainless steel gear oil pump: 2. Explosion-proof gear oil pump solution 1 Replace the inner and outer rotors so that the backlash is within the specified range (generally less than 0.07mm); Home AIDS are items we can't live without in our daily lives. They can help us take better care of our health and that of our families. Here are some common home AIDS: Home measuring instrument,necessities of life,AIDS are used in the home TRUTECH CO., LTD. , https://www.wxgrabbar.com
1 The flank clearance of the inner and outer rotors is too large, so that the suction oil chambers communicate with each other. The volumetric efficiency is significantly reduced and the output flow is insufficient;
2 axial clearance is large;
3 The sealing surface in the oil suction pipe is not tightly sealed, so that the pump sucks in air, and the effective suction flow rate is reduced;
4 oil absorption is not smooth. If the viscosity of the oil is too large, the oil filter is blocked by dirt, etc., resulting in a decrease in the suction flow rate;
5 The relief valve is stuck in the half-open position, and part of the flow from the pump is returned to the tank through the overflow valve, so that the flow into the system is not enough. At this time, there is a failure that the system pressure does not go up.
2 Grind both ends of the pump body to ensure that the axial clearance of the inner and outer rotors is within 0.02~0.05mm;
3 Replace the broken suction pipe seal, wrap the threaded part of the pipe joint with Teflon tape and tighten the pipe joint;
4 Select the oil of the appropriate viscosity and clean the oil filter to make the oil flow smooth. And increase the suction pipe diameter as appropriate;
5 Repair the overflow valve to eliminate the phenomenon that the overflow valve is shorted to the fuel tank and the effective flow of the pump is reduced.
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