Experimental Investigation of the Suction Capabilities of an Innovative High Speed External Gear Pump for Electro-Hydraulic Actuated Automotive Transmissions

Authors

  • Massimo Milani University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy
  • Luca Montorsi University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy
  • Fabrizio Paltrinieri University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy

DOI:

https://doi.org/10.13052/ijfp1439-9776.2527

Keywords:

Automotive transmissions, high speed external, gear pump, electro-hydraulic, experimental testing

Abstract

In this paper, the suction capabilities of an innovative high speed external gear pump have been measured and analysed for verifying its potential use as a reliable and efficient power unit for electro-hydraulic actuated automotive transmissions. In particular, with the aim to face extremely challenging operating conditions, mainly in terms of rotational speed, this specific type of volumetric machine is designed with both two suction and delivery ports. All the experimental measurements have been performed by using a specifically tailored test bench, equipped with a double Cardan joint and an overdrive, designed for running the pump over a wide range of rotational speeds, spanning between 400 and 7000 rpm, and applying a delivery pressure of about 45 bar, very close to a typical actuation value of a high-performance automotive hydraulic transmission. Furthermore, with the aim to confirm the consistency of the experimental measurements, two identical prototypes of the high speed external gear pump have been tested and compared for two different values of the operating temperature, respectively equal to 40 and 60oC. First of all, the higher efficiency of the pump primary suction port has been clearly highlighted and evaluated. Moreover, for rotational speed values higher than 4000 rpm, a significant increase of the volumetric flow rate delivered by the pump can be achieved using both the suction ports together and, thus, this particular hydraulic configuration can be considered as a very promising design solution for the entire actuation system.

Downloads

Download data is not yet available.

Author Biographies

Massimo Milani, University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy

Massimo Milani received the master’s degree in Materials Engineering, from the University of Modena (Italy), in 1994, and the philosophy of doctorate degree in Materials Engineering, from the same University, in 1998. He is currently the deputy Director of the Department of Sciences and Methods for Engineering of the University of Modena and Reggio Emilia (Italy), where he is also working with the role of Full Professor. His research areas include: volumetric machines analysis and design, study and optimization of hydraulic circuits for mobile applications, CFD analysis and cavitation modelling, injection systems dynamic analysis and design, numerical simulation of energy conversion systems and components, energy conversion systems from biomass and waste, new concepts of ULEV and ZEV co-generation systems. He has been serving as a reviewer for many highly-respected journals.

Luca Montorsi, University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy

Luca Montorsi received the master’s degree in Mechanical Engineering, from the University of Modena (Italy), in 1999, and the philosophy of doctorate degree in Materials Engineering, from the same University, in 2003. He is currently working as a Full Professor at the Department of Sciences and Methods for Engineering of the University of Modena and Reggio Emilia (Italy). His research areas include: CFD analysis of hydraulic components and systems, numerical simulation of energy conversion systems and components, energy conversion systems from biomass and waste, new concepts of ULEV and ZEV co-generation systems. He is Associated Editor of the International Journal of Thermofluids, published by Elsevier, and has been serving as a reviewer for many highly-respected journals.

Fabrizio Paltrinieri, University of Modena and Reggio Emilia, Department of Sciences and Methods for Engineering, 2 Amendola Street, Reggio Emilia RE 42122, Italy

Fabrizio Paltrinieri received the master’s degree in Mechanical Engineering, from the University of Modena (Italy), in 2000, and the philosophy of doctorate degree in Materials Engineering, from the same University, in 2004. He is currently working as an Associate Professor at the Department of Sciences and Methods for Engineering of the University of Modena and Reggio Emilia (Italy). His research areas include: volumetric machines analysis and design, hydraulic components internal flow field analysis, study and optimization of hydraulic circuits for mobile applications, CFD analysis and cavitation modelling, injection systems dynamic analysis and design. He is also interested in the study of the combustion process in spark ignition and compression ignition internal combustion engines. He is Guest Editor of the International Journal of Thermofluids, published by Elsevier, and of the international, peer-reviewed, open access journal Actuators, published by MDPI. He has been serving as a reviewer for many highly-respected journals.

References

A. Vacca and M. Guidetti, “Modelling and experimental validation of external spur gear machines for fluid power applications”, Simulation Modelling Practice and Theory, vol. 19, issue 9, pp. 2007-2031, 2011. DOI: https:/doi.org/10.1016/j.simpat.2011.05.009.

E. Mucchi and G. Dalpiaz, “Elasto-dynamic analysis of a gear pump-Part III: Experimental validation procedure and model extension to helical gears”, Mechanical Systems and Signal Processing, vol. 50–51, pp. 174-192, 2015. DOI: https:/doi.org/10.1016/j.ymssp.2014.05.048.

A.V. Svishchev and I.P. Aistov, “The theoretical and experimental studies comparison of the pressure pulsation in the discharge chamber of the gear pump”, Procedia Engineering, vol. 113, pp. 186–191, 2015. DOI: https:/doi.org/10.1016/j.proeng.2015.07.316.

F. Rituraj and A. Vacca, “External gear pumps operating with non-Newtonian fluids: Modelling and experimental validation”, Mechanical Systems and Signal Processing, vol. 106, pp. 284–302, 2018. DOI: https:/doi.org/10.1016/j.ymssp.2017.12.042.

R.H. Frith and W. Scott, “Comparison of an external gear pump wear model with test data”, Wear, vol. 196, issues 1-2, pp. 64–71, 1996. DOI: https:/doi.org/10.1016/0043-1648(95)06845-7.

D. Thiagarajan, A. Vacca and S. Watkins, “On the lubrication performance of external gear pumps for aerospace fuel delivery applications”, Mechanical Systems and Signal Processing, vol. 129, pp. 659–676, 2019. DOI: https:/doi.org/10.1016/j.ymssp.2019.04.030.

T. Ransegnola and A. Vacca, “Virtual Design and Analysis of the Balancing Element of an External Gear Machine Considering Cavitation and Mixed Lubrication Effects”, International Journal of Fluid Power, vol. 24, iss. 1, pp. 77–98, River Publishers, 2023. DOI: https:/doi.org/10.13052/ijfp1439-9776.2414.

P. Antoniak and J. Stryczek, “Visualization study of the flow processes and phenomena in the external gear pump”, Archives of Civil and Mechanical Engineering, vol. 18, issue 4, pp. 1103–1115, 2018. DOI: https:/doi.org/10.1016/j.acme.2018.03.001.

J. Stryczek, P. Antoniak, O. Jakhno, D. Kostyuk, A. Kryuchkov, G. Belov and L. Rodionov, “Visualisation research of the flow processes in the outlet chamber-outlet bridge-inlet chamber zone of the gear pumps”, Archives of Civil and Mechanical Engineering, vol. 15, issue 1, pp. 95–108, 2015. DOI: https:/doi.org/10.1016/j.acme.2014.02.010.

N. Ertürk, A. Vernet, R. Castilla, P.J. Gamez-Montero and J.A. Ferre, “Experimental analysis of the flow dynamics in the suction chamber of an external gear pump”, International Journal of Mechanical Sciences, vol. 53, issue 2, pp. 135–144, 2011. DOI: https:/doi.org/10.1016/j.ijmecsci.2010.12.003.

N. Ertürk, A. Vernet, J. Pallares, R. Castilla and G. Raush, “Small-scale characteristics and turbulent statistics of the flow in an external gear pump by time-resolved PIV”, Flow Measurement and Instrumentation, vol. 29, pp. 52–60, 2013. DOI: https:/doi.org/10.1016/j.flowmeasinst.2012.09.004.

D. Liu, Y. Ba and T. Ren, “Flow fluctuation abatement of high-order elliptical gear pump by external noncircular gear drive”, Mechanism and Machine Theory, vol. 134, pp. 338–348, 2019. DOI: https:/doi.org/10.1016/j.mechmachtheory.2019.01.011.

D. Siano and M.A. Panza, “Diagnostic method by using vibration analysis for pump fault detection”, Energy Procedia, vol. 148, pp. 10–17, 2018. DOI: https:/doi.org/10.1016/j.egypro.2018.08.013.

M. Battarra and E. Mucchi, “Incipient cavitation detection in external gear pumps by means of vibro-acoustic measurements”, Measurement, vol. 129, pp. 51–61, 2018. DOI: https:/doi.org/10.1016/j.measurement.2018.07.013.

L. Rodionov and P. Rekadze, “Experimental vibroacoustic research of a gear pump made of different materials”, Procedia Engineering, vol. 176, pp. 636–644, 2017. DOI: https:/doi.org/10.1016/j.proeng.2017.02.307.

A.G. Nath, E.S. Krishnan, S. Cheriyan, P.S. Vishnu, A. Krishnan, P. Sreedharan and G. Udupa, “Design and manufacture of miniature hydraulic gear pump for bio-medical application”, Materials Today: Proceedings, vol. 5, issue 11, part 3, pp. 25570–25580, 2018. DOI: https:/doi.org/10.1016/j.matpr.2018.10.364.

S. Ye, J. Zhang, B. Xu, W. Song and S. Zhu, “Experimental studies of the vibro-acoustic characteristics of an axial piston pump under run-up and steady-state operating conditions”, Measurement, vol. 133, pp. 522–531, 2019. DOI: https:/doi.org/10.1016/j.measurement.2018.10.058.

J. Zhang, S. Xia, S. Ye, B. Xu, W. Song, S. Zhu, H. Tang and J. Xiang, “Experimental investigation on the noise reduction of an axial piston pump using free-layer damping material treatment”, Applied Acoustics, vol. 139, pp. 1–7, 2018. DOI: https:/doi.org/10.1016/j.apacoust.2018.04.013.

S. Wang, J. Xiang, Y. Zhong and H. Tang, “A data indicator-based deep belief networks to detect multiple faults in axial piston pumps”, Mechanical Systems and Signal Processing, vol. 112, pp. 154–170, 2018. DOI: https:/doi.org/10.1016/j.ymssp.2018.04.038.

I. Baus, R. Rahmfeld, A. Schumacher and H.C. Pedersen, “Stress Analysis of the Cylinder Block in an Axial Piston Pump”, International Journal of Fluid Power, vol. 23, iss. 3, pp. 271–298, River Publishers, 2022. DOI: https:/doi.org/10.13052/ijfp1439-9776.2332.

N. Keller, A. Sciancalepore and A. Vacca, “Condition Monitoring of an Axial Piston Pump on a Mini Excavator”, International Journal of Fluid Power, vol. 24, iss. 2, pp. 171–206, River Publishers, 2023. DOI: https:/doi.org/10.13052/ijfp1439-9776.2422.

G. Bianchi, F. Fatigati, S. Murgia, R. Cipollone and G. Contaldi, “Modeling and experimental activities on a small-scale sliding vane pump for ORC-based waste heat recovery applications”, Energy Procedia, vol. 101, pp. 1240–1247, 2016. DOI: https:/doi.org/10.1016/j.egypro.2016.11.139.

E.P. Georgiou, D. Drees, M. De Bilde and M. Anderson, “Pre-screening of hydraulic fluids for vane pumps: An alternative to Vickers vane pump tests”, Wear, vol. 404–405, pp. 31–37, 2018. DOI: https:/doi.org/10.1016/j.wear.2018.02.022.

P. Garambois, G. Donnard, E. Rigaud and J. Perret-Liaudet, “Multiphysics coupling between periodic gear mesh excitation and input/output fluctuating torques: Application to a roots vacuum pump”, Journal of Sound and Vibration, vol. 405, pp. 158–174, 2017. DOI: https:/doi.org/10.1016/j.jsv.2017.05.043.

L. Ivanoviæ and M. Matejiæ, “Improving Gerotor Pump Performance Trough Design, Modeling and Simulation”, International Journal of Fluid Power, vol. 21, iss. 3, pp. 327–346, River Publishers, 2021. DOI: https:/doi.org/10.13052/ijfp1439-9776.2132.

F. Paltrinieri, M. Milani and L. Montorsi, “Testing the performance of an innovative high speed external gear pump as a reliable hydraulic power unit for automotive robotized transmissions”, AIP Conference Proceedings, vol. 2191, pp. 020124-1–020124-12, September 2019. DOI: https:/doi.org/10.1063/1.5138857.

Downloads

Published

2024-07-30

How to Cite

Milani, M. ., Montorsi, L. ., & Paltrinieri, F. . (2024). Experimental Investigation of the Suction Capabilities of an Innovative High Speed External Gear Pump for Electro-Hydraulic Actuated Automotive Transmissions. International Journal of Fluid Power, 25(02), 243–272. https://doi.org/10.13052/ijfp1439-9776.2527

Issue

2024: Vol 25 Iss 2

Section

GFPS 2022