Design and optimization of an LPG roller vane pump for suppressing cavitation
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A roller vane type liquefied petroleum gas (LPG) pump was developed for a liquid phase LPG injection (LPLi) engine. Most of the LPG pumps used in the current LPLi engines are installed inside of the LPG tank, but this pump is intended to be installed outside of the LPG tank to overcome the difficulty of fixing an in-tank pump. Because LPG has a low boiling point and high vapor pressure, it usually causes cavitation in the pump and consequently deteriorates the flow rate of the pump. The purpose of this work is to optimize the design of the roller vane pump in order to suppress cavitation and increase the fuel flow rate by using a computational fluid dynamics (CFD) analysis. In order to achieve these goals, the intake port configuration and the rotor of the roller vane pump were redesigned and simulated using STAR-CD code. Computation was performed for six different models to obtain the optimized design of the roller vane pump at a constant speed of 2600 rpm and a constant pressure difference between the inlet and outlet of 5 bar. The computation results show that an increased intake port cross-section area can suppress cavitation, and the pump can achieve a higher flow rate when the rotor configuration is changed to increase its chamber volume. When the inlet pressure difference is 0.1 bar higher than the fluid saturation pressure, the pump reaches its maximum flow rate.
- Beilke, I. (1998). Moving Mesh Example. 7th STAR-CD User Group Meeting. 23/24th November 1998. London.
- Chandrasekhar, R. (2005). Improved hydraulic power steering pump design using computer tools. SAE Paper No. 2005-01-1269.
- Choi, S. and Kang, K. (2003). A study one the liquid state supply system of the LP gas fuel. KSAE 03-S0066. Korean Society of Automotive Engineers.
- Fluent Inc. (2005). Vane Pump. Application Briefs from Fluent. EX239.
- Gang, T. S. and Sim, J. G. (2004). Development of fuel pump for LPLi. KSAE 04-F0083. Korean Society of Automotive Engineers.
- Lee, S., Jung, K. H., Kim, J. H. and Kang, S. H. (2002). Cavitation mode analysis of inducer. KSME Int. Journal.
- Lim, M. C., Myung, C. L., Park, S., Park, J. N., Kim, S. K. (2007) The study of flow rate performance and engine application with LPG composition rate for LPI fuel supplying system consisted of turbine type pump. Trans. Korean Society of Automotive Engineers 15: pp. 99-105
- Manco, S., Nervegna, N. and Rundo, M. (2004). Modeling and simulation of variable displacement vane pumps for IC engine lubrication. SAE Paper No. 2004-01-1601.
- Singh, T. (1991). Design of vane pump suction porting to reduce cavitation at high operation speeds. SAE Paper No. 911937.
- Sluis, F. van der (2003). A new pump for CVT applications. SAE Paper No. 2003-01-3207.
- Wang, L. A., Fernholz, C. M. and Bishop, L. (2001). Hydraulic steering pump cavity flow CFD simulation to improve NVH performance. SAE Paper No. 2001-01-1611.
- Wurterenberger, S. H. (2007). Simulation of cavitating flow in vane pumps. 3rd European Automotive CFD Conf., EACC 2007.
- Zhurba, N. and Cleghorn, W. (2000). Kinematic solution and force layout of a roller pump with internal outlets. SAE Paper No. 2000-01-0833.
- Design and optimization of an LPG roller vane pump for suppressing cavitation
International Journal of Automotive Technology
Volume 11, Issue 3 , pp 323-330
- Cover Date
- Print ISSN
- Online ISSN
- The Korean Society of Automotive Engineers
- Additional Links
- LPG (liquefied petroleum gas)
- Roller vane pump
- Intake port
- Flow rate
- Industry Sectors