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Video Cylinder - Crank Drive
Video Piston 1
Video Piston 2
Video Piston 3
Video Piston 4
Video Piston - history
Video Piston - in general
Video Piston - material
Video Piston - stress
Video Piston - dimensions
Video Piston - measuring
Video Piston - truck
Video Piston Pin
Video Piston Pin Offset
Video Piston Rings 1
Video Piston Rings 2
Video Piston Rings 3
Video Connecting Rod
Video Crankshaft-history
Video Crankshaft 1
Video Crankshaft 2
Video Crankshaft 3
Video Crankshaft 4
Video Crankshaft 5
Video V-2 Crankshaft 6
Video Crankshaft 7
Video Bearing Play Check
Video Forces crank mechanism
Video Rot. Vibration Damper
Video Equaliser Shafts 1
Video Equaliser Shafts 2
Video 5-cyl. Block
Video Fly Wheel
Video Cylinder Block 1
Video Cylinder Block 2
Video Cylinder Block 3
Video Cylinder Block 4
Video Cylinder Block 5
Video Cylinder Block 6
Video Measurements
Video Loop Scavenging
Video Classic Racing Engine
Video V8 Cylinder Block
Video V8 Crankshaft 1
Video V8 Crankshaft 2
Video V10 Cylinder Block
Video V12 Cylinder Block
Video W12 Cylinder Block
Video W8 Cylinder Block

Video CO2-Emissions
Video Torque
Video Gas Speed
Video Hollow Cylinder
Video Bore Stroke Ratio
Video Cubic Capacity
Video Output per Liter
Video Efficiency
Video Calc. Crank Mechan.
Video Pistin Force
Video Compression Ratio
Video Pistin Speed
Video Power (output)
Video Power (piston pressure)

Video Multi-cylinder engine 1
Video Multi-cylinder engine 10


          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Crankshaft V8







One crank pin per cylinder in spite of being a V-engine

The above crankshaft is more a half-finished object than a ready-for-use product. The single big-end bearings were turned into the right position after forging, using enormous force (twisting). Otherwise it is still in a raw state, however, its function is already quite obvious. It differs substantially from the usual V8 crankshafts. In this case, there is a big-end bearing available for each cylinder. This method is necessary if there is a deviation from the 90-cylinder-bank-angle and when even more main bearings and a consistent firing order are required. Hereby, the engine is increasingly selected according to the space in the vehicle.

With a 72 cylinder-bank-angel 18 crank offset

Even at a glance, the big-end bearings can already be seen in the crankshaft shown above. If one looks more closely, one can even recognise the low angular offset between the, to some extent, neighbouring cranks. This offset corresponds precisely to the angle from which the cylinder bank angle deviates from 90. On the right is the engine front. Every second crank belongs to one cylinder side.While in the case of the typical V8 crankshaft, both cylinder banks are displaced only by the width of one big-end bearing, here, two crank-webs and a main bearing are added. Thereby the latter are 9- and not 5-fold. 06/07




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Translator: Don Leslie - Email: lesdon@t-online.de

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