VIBRATION REDUCTION IN INTERNAL COMBUSTION ENGINE

The disclosure concerns a method for vibration reduction in a compression ignition four- stroke internal combustion engine. The internal combustion engine comprises exhaust and intake valves controlled by exhaust and intake camshafts. The method comprises, when operating the internal combustion engi...

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Bibliographische Detailangaben
Hauptverfasser: JÖNSSON, Ola, DAHL, Andreas, BIRGERSSON, Fredrik, AHLIN, Marcus, SARBY, Håkan
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The disclosure concerns a method for vibration reduction in a compression ignition four- stroke internal combustion engine. The internal combustion engine comprises exhaust and intake valves controlled by exhaust and intake camshafts. The method comprises, when operating the internal combustion engine below a threshold rotational speed, steps of: changing a timing of the exhaust camshaft to advance closing of the exhaust valve, and - changing a timing of the intake camshaft to delay opening of the intake valve.