STUDY OF THERMO-OXIDATIVE STABILITY OF LIQUIDS FOR STEP-BY-STEP HYDROSHIFT GEAR AND STEPLESS GEAR
UDC: 665.6
DOI: -
Authors:
Yagoda Maria I.
1,
Bagdasarov Leonid N.1,
Tonkonogov Boris P.1
1 Gubkin Russian State University of Oil and Gas
Keywords: thermal stability, fluid for stepless gearboxes (automatic transmission), continuously variable transmission (CVT), ATF, base oil of API group III, Yubase 4, LUKOIL VHVI 4
Annotation:
The Russian fleet of vehicles with automatic transmission is growing very rapidly. In this regard, the task of developing oils for automatic transmissions based on domestic raw materials is becoming very urgent. We studied the low-viscosity base oils of API Group III to determine their applicability for automatic gear to meet present-day requirements. Comparative testing of ATF (automatic transmission fluid) samples showed that oils prepared using domestic LUKOIL VHVI 4 (isomerization product of wax concentrates) as a base oil are of high quality and can be used both in hydro-mechanical transmissions requiring oils of DEXRON®-VI level and stepless transmissions. At the same time the oils show high thermo-oxidative stability, excellent low temperature pumpability and excellent viscosity-temperature properties.
Bibliography:
1. Сборка и локализация иномарок в России: маркетинговый отчет, сентябрь 2013//Аналитическое агентство АВТОСТАТ. — 63 с.
2. Топлива, смазочные материалы, технические жидкости. Ассортимент и применение: Справочник/Под ред. В.М. Школьникова. — М.: Издательский центр „Техинформ”, 1999. — 596 c.
3. Automatic Transmission Fluid Qualification Program and Procedures. Dexron®-VI//General Motors. — Pontiac, Michigan, USA, 2005. — 39 p.
4. Tim Sullivan. Lube Report//Lubes’n’Greases Magazine and Lubricants Industry Source- book are published by LNG Publishing Co., Inc. [Электронный ресурс]. — Режим доступа: http://www.imakenews.com/lng/e_article000384801.cfm?x=b11,0,w
5. Specification Handbook//Afton Chemical. [Электронный ресурс] — https://www.aftonchemi-cal.com/ Lists/Brochure/Attachments/40/Specification_Handbook.pdf
6. Automatically First//Afton Chemical. — Bracknell, UK, 2011. — P. 81.
7. James Dickey The History of ATF, 1939-2006 [Электронный ресурс]. — Режим доступа: http://www.lifeautomotive.com/pdfs/history_of_atf.pdfprolonged
8. Automatic Transmission Fluid Oxidation Testing//Intertek laboratory. [Электронный ресурс]. — Режим доступа: http://www.intertek.com/automotive/atf/oxidation/
9. Design practices — passenger car automatic transmissions. — 4th ed. SAE International.
10. Standard Test Method for Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, and Other Highly Refined Oils — ASTM International, 2004.
11. Техническое описание жидкости TOTAL FLUIDMATIC CVT MV. [Электронный ресурс] — http://www.totaloil.com.au/pages/content/nt0001302a.pdf
Back to issue