Internal combustion engine having eight cylinders in a V-configuration
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United States of America Patent
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Jun 25, 2013
Grant Date -
Aug 23, 2012
app pub date -
May 2, 2012
filing date -
Nov 13, 2009
priority date (Note) -
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Abstract
An internal combustion engine having eight cylinders in V-configuration, wherein a first cylinder bank and a second cylinder bank are disposed opposite one another. The internal combustion engine includes a cross-plane crankshaft and has a firing order of a 90° crank angle from cylinder to cylinder. An intake camshaft and an exhaust camshaft are associated with each cylinder bank for actuating at least one intake gas exchange valve and one exhaust gas exchange valve for each cylinder. The gas exchange intake valves that are actuated at a 90° crank angle in the same cylinder bank have a larger valve stroke than the gas exchange intake valves in same cylinder bank actuated immediately prior thereto. The gas exchange intake valves in the same cylinder bank actuated immediately prior thereto have a smaller valve stroke than all the remaining gas exchange intake valves of both cylinder banks.
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