W engine
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A W engine is a type of piston engine where three or four cylinder banks share the same crankshaft, resembling the letter "W" when viewed from the front.
Napier Lion W12 aircraft engine (circa 1930)
Napier Lion VII
W12 engine
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A W12 engine is a twelve-cylinder piston engine in which either three banks of four cylinders, or four banks of three cylinders are arranged in a W configuration around a common crankshaft.
W engine
…with the Passat W8 and its 4.0 liter, 2-bank W8 engine and later implementing the concept with the group's Bentley division, creating a 6.0 liter W12 in both naturally aspirated and turbocharged variants. Due to the pre-existing VR-type engine only needing one cylinder head with one bank of cylinders…
Napier Lion aircraft engine
Life Racing Engines F35 Formula One engine
Volkswagen's 6.0 WR12 48v engine
Bentley's 6.0 twin-turbocharged W12 engine