Paper Title:
An Optimization Approach to the Displacement Volumes for External Spur Gear Pumps
  Abstract

To increase volume displacement is always concerning in designing external gear pumps (EGPs). Therefore, an approach of optimization analysis intending to enhance their displacement capability is proposed in this study. Through that, design parameters of the spur gears in the pumps are systematically resulted to achieve their optimal volume displacements. Parametrically, a CAD model to visualize the designed gear of the optimal design is also created. Firstly, the study derives tooth profile equations by using the coordinate transformation and equation of meshing for gears on a rack cutter profile. Then, an analytic formula represented the enveloping area by an involute curve is derived. Next, volumes of output and trapped backflow of the EGP are achieved. Therefore the net output volume can be calculated accurately and efficiently. After that, the optimization analysis to maximize the volume displacement is performed. Through that, optimal design parameters for the pumps are achieved under assigned constraints for considerations of design and manufacturing. Additionally, influences of module, pressure angle, and addendum correction factor for the gears in the pumps on their displacement capability are also investigated. Additionally, flowrate fluctuation characteristics under different pressure angles of gears are finally discussed.

  Info
Periodical
Edited by
Sheng-Jye Hwang and Sen-Yung Lee
Pages
57-71
DOI
10.4028/www.scientific.net/MSF.594.57
Citation
K. J. Huang, W. R. Chang, W. C. Lian, "An Optimization Approach to the Displacement Volumes for External Spur Gear Pumps", Materials Science Forum, Vol. 594, pp. 57-71, 2008
Online since
August 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Fei Li, Jian Fang Xia
Chapter 3: Mechanical Transmission, Friction and Wear
Abstract:This article focuses on multi-tooth contact existing in planetary gearing with small tooth number difference. On the basis of analyses of the...
212
Authors: Bao Sen Yan, Rui Yang Li, Chao Hong Liu
Chapter 2: Research and Design of Machine Parts and Mechanisms in Mechanical Engineering
Abstract:Based on the condition of comprehensively considering the nonlinear factors, such as backlash helical gear transmission, time-varying meshing...
273