Flow characteristics of a trochoidal-gear pump using bond graphs and experimental measurement. Part 1
- 1 May 2007
- journal article
- research article
- Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering
- Vol. 221 (3), 331-346
- https://doi.org/10.1243/09596518jsce250
Abstract
The current paper presents an extensive study aimed at trochoidal-gear pumps. In recent years their important application in the automotive industry, where trochoidal-gear pumps are increasingly in use, has encouraged work to enhance a better understanding of their characteristics and performance. To different extents, geometry and kinematics of trochoidal profiles and volumetric characteristics are considered. The bond graph technique is applied to model a trochoidal-gear pump based upon an ideal representation in order to simulate the instantaneous flow. The frequent intricate aspects of leakage have been deliberately left aside in this part 1 of the present paper. Nevertheless, leakage and interaction of the flow inside the pump will be presented in part 2 of this paper. The experimental determination of the flow ripple of a crankshaft-mounted gerotor pump for IC engine lubrication is also considered. A convenient method of experimentally measuring the so-called ‘secondary source’ method is presented. The method is based on the analysis of the wave propagation characteristics in a circuit which includes the pump under test and an additional source of fluid-borne noise. In addition to allowing investigation of the flow characteristics through simulation and experimental measurement, which obtains interesting results, this study also provides a way of obtaining the dynamic properties of trochoidal-gear pumps under realistic conditions for use in further studies for modelling more complex hydraulic components.Keywords
This publication has 7 references indexed in Scilit:
- A Contribution to the Design of Hydraulic Lube PumpsInternational Journal of Fluid Power, 2002
- Theoretical and Experimental Studies of the Steady State Performance of an Orbital Rotor Low-Speed High-Torque Hydraulic MotorProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1996
- Geometry for trochoidal-type machines with conjugate envelopesMechanism and Machine Theory, 1994
- The ‘Secondary Source’ Method for the Measurement of Pump Pressure Ripple Characteristics Part 1: Description of MethodProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1990
- The ‘Secondary Source’ Method for the Measurement of Pump Pressure Ripple Characteristics Part 2: Experimental ResultsProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1990
- The use of plane wave theo ry in the modelling of pressure ripples in hydraulic systemsTransactions of the Institute of Measurement and Control, 1983
- The geometry of trochoid envelopes and their application in rotary pumpsMechanism and Machine Theory, 1974