The Analysis of Trapped Volume in Gear Pump

DOI

10.2991/icmeit-16.2016.53How to use a DOI?

Keywords

External gear pump, tooth profile equations, trapped volume, mathematical model.

Abstract

The large pressure overshoots or spikes could be easily provoked by virtue of the rapid volumetric change in working process of gear pump, which cause the gear machines to be noise, vibration, strength and other problems, directly affect the stationarity and lifetime performance of the gear machine. For the purpose of this paper is to investigate the variation characteristics of trapped volume in the meshing process of external gear pump. Firstly, a complete mathematical equations of involute gear tooth profile is established after analysis of tooth profile structure with same design parameters on the driving and driven gears. Then, the mathematical model of trapped volume is proposed based upon the meshing theory and a complete set of mathematical equations of tooth profile. This model can accurately and effectively predict the volume of trapped fluid. Finally, the program edited by ourselves is used to solve the mathematical model in the Matlab environment. The results show that the variation curve of the trapped volume is parabola curve, and present symmetric distribution.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaoru Hao
AU  - Xiaojun Zhou
AU  - Xiaoguang Liu
PY  - 2016/08
DA  - 2016/08
TI  - The Analysis of Trapped Volume in Gear Pump
BT  - Proceedings of the 2016 International Conference on Mechatronics Engineering and Information Technology
PB  - Atlantis Press
SP  - 280
EP  - 283
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeit-16.2016.53
DO  - 10.2991/icmeit-16.2016.53
ID  - Hao2016/08
ER  -