Performance analysis of a variable-displacement vane-type oil pump for engine lubrication using a complete mathematical model

Abstract

Variable-displacement vane-type oil pumps represent one of the most innovative pump types for industrial applications, especially for engine lubrication systems. The aim of this paper is to develop a complete and accurate mathematical model for a typical variable-displacement vane-type oil pump to investigate its working performance. First, the detailed theoretical model was built on the basis of pump geometric design and dynamic analyses. Next, numerical simulations with the constructed model and experiments on the actual pump system were carried out to analyse the main power loss factors in order to develop the complete model for high modelling accuracy. The estimated pump performance using the complete pump model was finally verified by numerical simulations in comparison with practical tests.

Keywords

Lubrication vane pump variable displacement flow rate modelling

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References

Staley

Pryor

Gilgenbach

. Adaptation of a variable displacement vane pump to engine lube oil applications. SAE paper 2007-01-1567, 2007.

Loganathan

Govindarajan

Kumar

. Design and development of vane type variable flow oil pump for automotive application. SAE paper 2011-28-0102, 2011.

Rexroth variable displacement vane-type oil pump, dc-corp.resource.bosch.com/media/en/xc/industries/automotive/products_3/fiat/hydraulics_project_book.pdf (PV7 Series), 2012-02-22

Atos variable displacement vane-type oil pump, www.atos.com/english/catalog/hydraulic_pumps.html (A082 Series), 2012-02-22.

Scoda variable displacement vane-type oil pump, www.scoda.it/English/catalog.html (SA085 Series), 2012-02-22.

Shulver

Cioc

. Continuously variable displacement vane pump and system. International Patent WO 2007/128106 A1, 2007.

Tanasuca

Hill

. Variable capacity vane pump with force reducing chamber on displacement ring. US Patent 2009/0074598 A1, 2009.

Williamson

Shulver

. Variable capacity vane pump with dual control chambers. US Patent 7794217 B2, 2010.

Staley

Pryor

. Pressure regulating variable displacement vane pump. US Patent 7862306 B2, 2011.

10.

Giuffrida

Lanzafame

. Cam shape and theoretical flow rate in balanced vane pumps. Mechanism Mach Theory 2005; 40(3): 353–369.

11.

Kim

Truong

Trung

. Development of an electronic control variable displacement lubrication oil pump. In: 15th international conference on mechatronics technology, Melbourne, Australia, 30 November–2 December 2011, ICMT; Town of Publication: Melbourne, Vic., paper 65, pp. 306–310.

12.

Karmel

. A study of the internal forces in a variable-displacement vane-pump – Part I: a theoretical analysis. Trans ASME, J Fluids Engng 1986; 108(2): 227–232.

13.

Karmel

. A study of the internal forces in a variable-displacement vane-pump – Part II: a parametric study. Trans ASME, J Fluids Engng 1986; 108(2): 233–237.

14.

Rundo

Nervegna

. Geometry assessment of variable displacement vane pumps. Trans ASME, J Dynamic Systems, Measmt Control 2007; 129(4): 446–455.

15.

Geist

Resh

. Dynamic Modeling of a variable displacement vane pump within an engine oil circuit. In: ASME 2011 Internal Combustion Engine Division fall technical conference, Morgantown, West Virginia, USA, 2–5 October 2011, pp. 857–870. New York: ASME.

16.

The Engineering ToolBox, www.engineeringtoolbox.com (2012), Accessed: 2012-04-15.

17.

Inaguma

. Theoretical analysis of mechanical efficiency in vane pump. JTEKT Engng J, Engl Edition 2010; (1007E); 28–35.