A systematic analysis of the friction losses on bearings of modern turbocharger

• Autorzy: Vanhaelst R. , Kheir A. , Czajka J.
• Języki publikacji: EN

Abstrakty

EN

In the article, a novel test rig for determining the friction losses of modern turbocharger is presented. The friction torque of the bearing of turbocharger can be measured direct and stationary at any speed up to 100,000 min–1 by the friction test rig developed by the Ostfalia, University of Applied Science (UAS). Since 2010, over 50 turbochargers were measured on the test bench in extensive measurement series. The results give valuable and new insights of the influence of the next parameters on the bearing friction losses: oil temperature, oil pressure, thrust force and oil flow rate. Furthermore, a comparison between the different bearing types (semi-floating, full floating and ball bearings) was performed. The main observations and results are discussed in the scientific article.

Słowa kluczowe

EN

friction power; test rig; turbocharger; floating bearing; ball bearing; oil temperature; oil pressure; thrust force

PL

moc tarcia; stanowisko badawcze; turbosprężarka; łożysko swobodne; łożysko kulkowe; temperatura oleju; ciśnienie oleju; siła odporu

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2016
• Tom: R. 55, nr 1
• Strony: 22--31
• Opis fizyczny: Bibliogr. 3 poz., wykr.

Twórcy

autor

Vanhaelst R.

• Faculty of Automotive Engineering Ostfalia University of Applied Sciences, Germany

autor

Kheir A.

• Faculty of Automotive Engineering Ostfalia University of Applied Sciences, Germany

autor

Czajka J.

• Faculty of Automotive Engineering Ostfalia University of Applied Sciences, Germany

Bibliografia

• [1] Baar R., Porzig D., Rätz H.: Systemspezifische Schmierfilmdissipation in den radialen und axialen Lagerstellen von Abgasturboladern unter realen Betriebsbedingungen mit unterschiedlichen Ölzuführungsrandbedingungen Abschlussbericht über das Vorhaben Nr. 1020 (AIF-Nr. 16230).
• [2] Smiljanovski V., Schorn N., Scharf J., Funken B., Pischinger S.: Messung des Turbinenwirkungsgrades bei niedrigen Turboladerdrehzahlen. 13. Aufladetechnische Konferenz Dresden, 2008.
• [3] Schmitt S., Schmid W., Hertweck G., Schlegl M., Staudacher S.: High-Precision measurements of friction measurements of friction losses in turbochargers. 12. Aufladetechnische Konferenz Dresden, 2007.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.