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CHAPTER: Turbochargers

CHAPTER: Turbochargers. Turbochargers. CHAPTER: Turbochargers. CHAPTER: Turbochargers. In This Presentation . Function Design Operation Normal wear Why Turbos Fail. CHAPTER: Turbochargers. Function . CHAPTER: Turbochargers. Function . CHAPTER: Turbochargers.

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CHAPTER: Turbochargers

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  1. CHAPTER: Turbochargers Turbochargers

  2. CHAPTER: Turbochargers

  3. CHAPTER: Turbochargers In This Presentation • Function • Design • Operation • Normal wear • Why Turbos Fail

  4. CHAPTER: Turbochargers Function

  5. CHAPTER: Turbochargers Function

  6. CHAPTER: Turbochargers Turbocharger Functions • Normalize Air Supply • Boost Air Supply

  7. CHAPTER: Turbochargers Normalizing • Compensate for thinner Air • Waste gate valve by-pass turbo boost • Normal Power at high Altitudes • Fuel deration at 2 150 m to avoid over speed • Quieter Exhaust, better combustions and emissions

  8. CHAPTER: Turbochargers Normalizing First commercial use 1940’s in Airplane

  9. CHAPTER: Turbochargers Boosting • More Oxygen / Increased Fuel Setting • Higher Power • Better Combustion • - Better Fuel Economy • - Cleaner Emissions • Quieter

  10. CHAPTER: Turbochargers Boosting

  11. CHAPTER: Turbochargers Design

  12. CHAPTER: Turbochargers Design Waste-Gate Turbo

  13. CHAPTER: Turbochargers Design Lubrication System Lubricating Cooling Cleaning

  14. CHAPTER: Turbochargers Design Lubrication System Direct lubrication line to Turbo

  15. CHAPTER: Turbochargers Design Lubrication System

  16. CHAPTER: Turbochargers Design Lubrication System

  17. CHAPTER: Turbochargers Design Friction Welding Hollow thermal barrier Centering Pin

  18. CHAPTER: Turbochargers Design Induction hardened Shaft

  19. CHAPTER: Turbochargers Design Compressor wheel High Strength Aluminum alloys

  20. CHAPTER: Turbochargers Design Compressor wheel Balancing Notches

  21. CHAPTER: Turbochargers Design Compressor wheel Radial milling

  22. CHAPTER: Turbochargers Design Free-floating journal bearings Copper/tin/lead alloy or from aluminium Lube holes or groove

  23. CHAPTER: Turbochargers Design Snap rings Rounded edge towards the bearing

  24. CHAPTER: Turbochargers Design Thrust Bearing Copper/tin/lead alloy or from aluminium Bearing stationary Washer full shaft RPM

  25. CHAPTER: Turbochargers Design Seal Rings High temperature resistant chrome alloy Cold side cast iron End gap

  26. CHAPTER: Turbochargers Design Housing Cast aluminum alloy Cast Iron Cast ductile iron or nickel alloy

  27. CHAPTER: Turbochargers Design Heat Shield Protects center housing from high exhaust temperatures

  28. CHAPTER: Turbochargers Operation Start-up

  29. CHAPTER: Turbochargers Operation Turbos are matched

  30. CHAPTER: Turbochargers Operation Air Restriction Energy stored in rotating component can equal the engine HP Turbo spin 80 000 Rpm Surface speed 30m/second

  31. CHAPTER: Turbochargers Normal Wear Increased clearance

  32. CHAPTER: Turbochargers Normal Wear Hot side Little leak past the seal ring

  33. CHAPTER: Turbochargers Normal Wear Turbine Wheel No discoloration Seal ring with gap separation

  34. CHAPTER: Turbochargers Normal Wear Bearings More wear on hot side

  35. CHAPTER: Turbochargers Normal Wear Thrust Bearing Fine abrasive wear

  36. CHAPTER: Turbochargers Normal Wear Thrust washers

  37. CHAPTER: Turbochargers Why Turbos Fail • Lack of Lubrication • Abrasive in the Oil • High Exhaust Temperature • Foreign Objects • Turbo Problems

  38. CHAPTER: Turbochargers Lack of Lube Road-signs • Temper Colors/ Cooked Oil • Adhesive Wear • Weakened Metal • Wheel Contact with Housing • Wheel separation from Shaft

  39. CHAPTER: Turbochargers Lack of Lubrication Housing Contact

  40. CHAPTER: Turbochargers Lack of Lubrication Housing Contact Temper colors and cooked oil residue

  41. CHAPTER: Turbochargers Lack of Lubrication High Temperature

  42. CHAPTER: Turbochargers Lack of Lubrication High Temperature

  43. CHAPTER: Turbochargers Lack of Lubrication High Temperature

  44. CHAPTER: Turbochargers Lack of Lubrication High Temperature

  45. CHAPTER: Turbochargers Lack of Lubrication High Temperature Rapid Shutdown

  46. CHAPTER: Turbochargers Lack of Lubrication High Temperature Cooked oil residual

  47. CHAPTER: Turbochargers Lack of Lubrication High Temperature Quench dots/rings

  48. CHAPTER: Turbochargers Lack of Lubrication High Temperature Bushing stuck to shaft

  49. CHAPTER: Turbochargers Lack of Lubrication High Temperature Turbine wheel separation

  50. CHAPTER: Turbochargers Lack of Lubrication High Temperature

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