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The only mass-production W12 engine is the Volkswagen 6.0 WR12 48v, a four-bank design which was released in 2001.This engine has been used in several models from the brands Audi, Bentley, and Volkswagen, and in 2003 a turbocharged version was released.
In a transverse layout the three-cylinder row is located towards the front, and in a longitudinal layout towards the right. Due to the narrow bank-angle of the two cylinder rows, the arrangement works as a zig-zag staggered, W-patterned inline five-cylinder. The engines have a firing order of 1-2-4-5-3.
The narrow angle of each set of cylinders allows just two overhead camshafts to drive each pair of banks, so the WR12 engine has both a crankshaft design, and the same number of camshafts as the V-12 engine. Where the VR6 is a staggered-bank straight 6, the WR12 in turn is a staggered-bank V-12 in terms of engineering design.
Straight-six engines typically use a firing order of 1-5-3-6-2-4. However, a firing order of 1-2-4-6-5-3 is common on medium-speed marine engines. V6 engines with an angle of 90 degrees between the cylinder banks have used a firing orders of R1-L2-R2-L3-L1-R3 or R1-L3-R3-L2-R2-L1. Several V6 engines with an angle of 60 degrees have used a ...
The V angle between the cylinder banks is 15°, and the compression ratio is 10:1. [2] The crankshaft runs in seven main bearings and the journals are offset 22° to one another, in order to accommodate the offset cylinder placement. [3] This also allows the use of a 120° firing interval between cylinders. [4] The firing order is: 1, 5, 3, 6 ...
1919 Napier Lion II aircraft engine with three cylinder banks. Any design of motor/engine,be it a V or a boxer can be called an "in-line" if it's mounted in-line with the frame/chassis and in-line with the direction of travel of the vehicle.When the motor/engine is across the frame/chassis this is called a TRANSVERSE motor.Cylinder arrangement is not in the description of how the motor/engine ...
The following articles list Volkswagen Group engines which are available worldwide. These include motor vehicle engines, marine engines sold by Volkswagen Marine [1] and industrial engines sold by Volkswagen Industrial Motor. [2] List of Volkswagen Group petrol engines (current) List of Volkswagen Group diesel engines (current)
A W engine is a type of piston engine where three or four cylinder banks use the same crankshaft, resembling the letter W when viewed from the front. [1] [2] [3] W engines with three banks of cylinders are also called "broad arrow" engines, due to their shape resembling the British government broad arrow property mark. [1] [4]