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TYPICAL OIL SYSTEMS

Explore the evolution of jet engine oil systems from total loss to dry-sump recirculating setups. Learn about components like pumps, filters, and tanks, and how oil is distributed and lubricated in the front, center, and rear bearing chambers. Discover the role of pressure and scavenging in maintaining oil supply and preventing loss. Get insights into the functioning of oil coolers, pumps, and tanks in efficient oil management.

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TYPICAL OIL SYSTEMS

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  1. TYPICAL OIL SYSTEMS Jet Engines Distribution and Lubrication

  2. Scavenge Pump SUMP i.e. oil was lost in the gas stream Early jet engines were total loss system Engine Bearing Chamber Pump Filter Tank Jet engines are now ‘DRY-SUMP - RE-CIRCULATING’ Oil systems TYPICAL OIL SYSTEM - JET ENGINE

  3. Front Bearing Chamber Centre Bearing Chamber Rear Bearing Chamber Roller Bearing Ball Bearing (Location Bearing) Roller Bearing Bearing Chambers TYPICAL OIL SYSTEM - JET ENGINE

  4. Let’s take a closer look at what happens here OIL COOLER MCD MCD MCD PRESSURE SCAVENGE MASTER MCD Notional oil system OIL PUMP ASSEMBLY OIL TANK TYPICAL OIL SYSTEM - JET ENGINE

  5. Oil Jet Scavenge Oil Supply Bearing Support Structure Shaft Bearing Oil Supply and Scavenge TYPICAL OIL SYSTEM - JET ENGINE

  6. Pressurised air from compressors Oil Supply Bearing Support Structure = static part Higher pressure air forced into the Bearing Chamber prevents oil loss Shaft = rotating part Oil Jet Air/Oilscavenged away to tank TYPICAL OIL SYSTEM - JET ENGINE

  7. Clean(?) Air Overboard OIL COOLER MCD MCD MCD PRESSURE MASTER MCD Gearbox Drive Scavenge Oil passes throughAir/OilSeparatorinOil Tank Centrifugal Breather with Air Sealing Notional oil system OIL PUMP ASSEMBLY SCAVENGE OIL TANK TYPICAL OIL SYSTEM - JET ENGINE

  8. Any Questions?

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