Wen Wang1 , Yan-Mei Yin1 , Shang-Hong He This email address is being protected from spambots. You need JavaScript enabled to view it.1 and Guang-Ming Liu2

1Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha 410114, P.R. China
2Hunan Oil Pump Co., LTD, Hengyang 421400, P.R. China


Received: February 9, 2017
Accepted: June 5, 2017
Publication Date: September 1, 2017

Download Citation: ||https://doi.org/10.6180/jase.2017.20.3.11  


Oil pump models with different gear tooth shapes were established and the internal flow field simulation were conducted by utilizing Pumplinx. Then the characteristics of steady state flux and flow pulsation were analyzed. The research shows that: compared with straight gear pumps, the flow pulsation of other toothed gear pumps is much lower, although they have lower flow at low and medium speed. Especially the flow pulsation of dislocation gear pumps is much lower than straight gear pumps. It decreased by 27% at 1100 rpm and 35% at 2700 rpm, compared with straight gear pumps. Finally the straight gear pump flow is tested experimentally, and the experimental results match the simulation very well. This proves that the internal flow field models are correct and useful in technically supporting the oil pump development.

Keywords: Gear Pump, Gear Tooth Shape, Simulation Analysis, Flow, Flow Pulsation


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