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Engine Construction: Cylinders, Crankcase, and Frame Definitions

Understand the roles of cylinder block, crankcase, and frame in the engine construction. Learn about materials, location, connection methods, and prevention of crankcase explosions.

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Engine Construction: Cylinders, Crankcase, and Frame Definitions

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  1. LESSON ONE

  2. CYLINDERS & CRANKCASE

  3. THE DEFINITION OF A FRAME

  4. THE DEFINITION OF A FRAME • The engineload carrying partthat includes:

  5. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block

  6. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase

  7. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase • bedplate or base

  8. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase • bedplate or base • sump or oil pan

  9. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase • bedplate or base • sump or oil pan • end plates

  10. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase • bedplate or base • sump or oil pan • end plates 2. THE DEFINITION OF A CYLINDER BLOCK

  11. THE DEFINITION OF A FRAME • The engineload carrying partthat includes: • cylinder block • crankcase • bedplate or base • sump or oil pan • end plates 2. THE DEFINITION OF A CYLINDER BLOCK A cast iron casing which encloses / housescylinder liners & supportsheads.The heads are tightly secured by studs and nuts to the cylinder block

  12. 3. THE DEFINITION OF A CRANKCASE

  13. 3. THE DEFINITION OF A CRANKCASE The crankcase is a housing for the crankshaft and provides space for it’s rotation.

  14. 3. THE DEFINITION OF A CRANKCASE The crankcase is a housing for the crankshaft and provides space for it’s rotation. 3.1 MATERIAL

  15. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel

  16. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates

  17. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates 3.2 LOCATION

  18. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates 3.2 LOCATION A column or frame, mounted on the bedplate, forms the engine crankcase.

  19. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates 3.2 LOCATION A column or frame, mounted on the bedplate, forms the engine crankcase. 3.3 CONNECTION

  20. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates 3.2 LOCATION A column or frame, mounted on the bedplate, forms the engine crankcase. 3.3 CONNECTION Bedplate to frames-by steel tie rods / long tie bolts

  21. 3. THE DEFINITION OF A CRANKCASE • The crankcase is a housing for the crankshaft and provides space for it’s rotation. • 3.1 MATERIAL • cast steel • cast steel & welded steel plates 3.2 LOCATION A column or frame, mounted on the bedplate, forms the engine crankcase. 3.3 CONNECTION Bedplate to frames-by steel tie rods / long tie bolt Cylinder covers to cylinder liners-by strong studsanchored in the cylinder block ( M.A.N. )

  22. 3.4 CRANKCASE EXPLOSION

  23. 3.4 CRANKCASE EXPLOSION 3.4.1 Causes

  24. 3.4 CRANKCASE EXPLOSION 3.4.1 Causes Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil.

  25. 3.4 CRANKCASE EXPLOSION 3.4.1 Causes Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. 3.4.2 Prevention

  26. 3.4 CRANKCASE EXPLOSION 3.4.1 Causes Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. 3.4.2 Prevention Proper maintenance, correct lubrication, cleanliness.

  27. 3.4 CRANKCASE EXPLOSION 3.4.1 Causes Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. 3.4.2 Prevention Proper maintenance, correct lubrication, cleanliness. 3.4.3 Safety arrangements

  28. 3.4 CRANKCASE EXPLOSION • 3.4.1 Causes • Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. • 3.4.2 Prevention • Proper maintenance, correct lubrication, cleanliness. • 3.4.3 Safety arrangements • Crankcase explosion relief valves;

  29. 3.4 CRANKCASE EXPLOSION • 3.4.1 Causes • Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. • 3.4.2 Prevention • Proper maintenance, correct lubrication, cleanliness. • 3.4.3 Safety arrangements • Crankcase explosion relief valves; • Inert gas flooding system;

  30. 3.4 CRANKCASE EXPLOSION • 3.4.1 Causes • Oil dropletsare formed by oil splashing from the bearings mix with air.This mixture does not readily burn or explode unless there are overheated parts within the crsnkcase & presence of fuel oil. • 3.4.2 Prevention • Proper maintenance, correct lubrication, cleanliness. • 3.4.3 Safety arrangements • Crankcase explosion relief valves; • Inert gas flooding system; • Crankcase mist detector

  31. 3.4.4 Consequences

  32. 3.4.4 Consequences • Minor explosion, flames, pressure shock wave

  33. 3.4.4 Consequences • Minor explosion, flames, pressure shock wave ( ruptures crankcase doors )

  34. 3.4.4 Consequences • Minor explosion, flames, pressure shock wave ( ruptures crankcase doors ) • Major explosion – widespread damage.

  35. 3.4.4 Consequences • Minor explosion, flames, pressure shock wave ( ruptures crankcase doors ) • Major explosion – widespread damage. 3.4.5 Actions

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