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Importance of Lubrication in Combustion Engines | Tutorial: Engine Oils

Learn about the significance of engine lubrication, types of oils, viscosity standards, and quality classifications in combustion engines. This tutorial covers oil usage in various engine types and the importance of following industry standards.

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Importance of Lubrication in Combustion Engines | Tutorial: Engine Oils

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  1. Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“ Tutorial: Physics Topic: Oilsofcombustionengines Prepared by : RNDr. Ondřej Jeřábek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

  2. Oilsofcombustionengines

  3. Significanceofcombustionengines´lubrication Significance of lubrication: • Reduction of friction between moving and stationary engine parts • Conservation of combustion engine’s parts • Cooling of some combustion engine’s parts • Minimize wear of combustion engine’s parts Use of lubrication: Compression ignition engines, spark ignition engines, 4-stroke engines, 2-stroke engines

  4. Kindsofcombustionengines´oils • Mineral oils • They are made by distillation of petroleum • Polo synthetic oils • They are the most common • It is made by mixing mineral and synthetic oils • It contains at least 20% of synthetic part • Synthetic oils • They are made by extraction of element suitable for lubrication of petroleum • High quality oil types

  5. Standard SAE • Viscous classification • Viscosity – resistance against liquid flowing • Labelling: 15W40 • 15 – Winter viscous index • The lowest number - the most suitable is oil for winter traffic • W – Winter • Oil suitable for winter traffic • 40 – Summer viscous index • The higher number - the most suitable is oil for working in higher temperatures

  6. Standard API • Productivity standard • It considers lubricating oil abilities and qualities as a complex unit. • Labelling: SJ • S – engine type(S – spark ignition engines, C – compression engines, T – 2-stroke engines) • J – Oil quality– the further letter it is in alphabet, the higher quality oil it is

  7. Standard ACAE • European standard of oil quality • Oils are labelled by the combination of letters and numbers • Spark-ignition engines – A, compression engines– B, lorries– E

  8. Standard ACAE • Petrol engines • A1 – elementary efficiency level for modern petrol engines • A2 – standard engine oils for modern petrol engines • A3 – high-oil quality for modern petrol engines • Diesel engines for cars • B1 – elementary efficiency level for modern diesel engines • B2 – standard engine oils for modern diesel engines • B3 – high – quality oils for modern diesel engines • B4 – engine oils for diesel engines of cars with straight squirt • Diesel engines for lorries • E1 – elementary efficiency level for modern diesel engines • E2 – standard engine oils for modern diesel engines • E3 – high – quality oil for modern diesel engines • E4 – engine oils for engines complying emission rules EURO 2 and EURO 3, along with the possibility of extreme extensions of exchange intervals

  9. Standard ACAE Petrol engines A1 – elementary efficiency level for modern petrol engines A2 – standard engine oils for modern petrol engines A3 – high quality oils for modern petrol engines Diesel engines for cars B1 – elementary efficiency level for modern diesel engines B2 – standard engine oils for modern diesel engines B3 – high quality oils for modern diesel engines B4 – engine oils for diesel engines of cars with direct squirt Diesel engines for lorries E1 – elementary efficiency level for modern diesel engines E2 – standard engine oils for modern diesel engines E3 – high quality oils for modern diesel engines E4 – engine oils for engines complying emission rules EURO 2 and EURO 3, along with the possibility of extreme extensions ofexchangeintervals

  10. Volkswagen Standard • Some producers use their own standards for oils evaluation • VW 500.00 (petrol engines) – corresponds to ACEA A3 • VW 501.01 (petrol engines) - corresponds to ACEA A2 • VW 505.00 (diesel engines) - corresponds to ACEA B3 • Extension of exchange- model 2000 (it is not for eastern Europe): • VW 503.00 (petrol engines) - 30000 km or 2 years • VW 506.00 (diesel engines) - 30000 km or 2 years for common cars, 50000 km or 2 years for personal cars • W 505.01 (diesel engines) - 15000 km or 1 year

  11. Activity I • Explain the meaning of standards: • API • SAE

  12. Activity II • Explain the term of viscosity • Explain the following standard marking SAE: 10W30

  13. Literature • JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří . Automobily 1. Brno : Avid, 2004. 211 s. • JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří . Automobily 2. Brno : Avid, 2004. 120 s. • JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří . Automobily 3. Brno : Avid, 2004. 220 s. • JAN, Zdeněk; ŽDÁNSKÝ, Bronislav ; ČUPERA, Jiří . Automobily 4. Brno : Avid, 2004. 350 s. Translation: • www.seznam.cz • www.slovnik.cz • JANATA, Petr. Handy slovník technický anglicko-český a česko-anglický. Plzeň: Nakladatelství Fraus, 2000. ISBN 80-7238-075-3 • Lingea LEXIKON 5, Technický slovník anglicko-český a česko-anglický. 2010.

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