2011•Modern MachineryRequires access
Factors that affect the gear-on-gear pump flow characteristics
Zhou Lan-mei
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Abstract
The influence of flow pulsation on flow characteristics of external gear pump is an important factor.Reduce the flow pulsation to improve the flow characteristics of external gear pump is very important.The calculating formula of gear-on-gear pump flow pulsation is obtained by energy calculation.As can be seen from this formula that the factor of affecting the flow pulsation is more.Effect of modification coefficient,modulus and teeth on flow pulsation is main analyzed and corresponding approximate formulae are given in this paper.The results showed that the influence of modulus of external gear pump on flow pulsation is biggest,total modification coefficient of the second,the least number of teeth.