Crankcases in Focus
- As the housing for the drive mechanism and cooling jacket, the crankcase forms the central component of the engine.
- The crankcase has a number of functions and tasks, including:
- - Accommodating the crank drive mechanism
- Accommodating and connecting the cylinder head(s)
- As a mounting for the crankshaft and, if applicable, the camshaft
- Accommodating lubricant and coolant ducts
- Integrating a crankcase ventilation system
- Connecting to the gearbox and valve control drive
- Accommodating various auxiliary components
- Closing the crankcase to the outside by means of the oil pan.
- BF crankcases are produced primarily from grey cast iron by sandcasting.
|1 Cylinder head sealing surface|
|2 Support for cylinder liner|
|3 Openings for valve push rods|
|4 Tapped holes for cylinder head bolts|
Crankcases for in-line engines
- Balanced engine running, even without mass balancing.
- Straightforward, cost-effective construction method.
- Longer construction method when compared to comparable V engines.
Crankcases for V engines
- Shorter and more compact model when compared to comparable in-line engines.
- Shorter model for crankshafts and camshafts.
- More cost-intensive construction method.
- Takes up more space (width).