A POWER UNIT WITH VARIABLE VALVE TIMING SYSTEM

The present subject matter relates to a power unit with variable valve timing system. The power unit (100) comprises a cylinder head assembly (102). A variable valve timing system provided on the cylinder head assembly (102) comprises a first cam (142) for actuating one or more first valves (132) th...

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Bibliographische Detailangaben
Hauptverfasser:	KARUNAHARAN, Vythilingam, VARADHA IYENGAR, Lakshmi Narasimhan, THIRUVALLUR LOGANATHAN, Balasubramanian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The present subject matter relates to a power unit with variable valve timing system. The power unit (100) comprises a cylinder head assembly (102). A variable valve timing system provided on the cylinder head assembly (102) comprises a first cam (142) for actuating one or more first valves (132) through a first rocker arm (144) pivotable about a first axis (S-S1)· A secondary cam (152) for selectively actuating the one or more first valves (132) through a secondary rocker arm (154) pivotable about the first axis (S-S1). An engaging unit (145, 160, 162) is disposed about the first axis (S-S1) is configured to selectively engage the secondary rocker arm (154) with the first rocker arm (144). The present invention provides a system with lower inertia due to mass accumulation near to the first axis (S- S') thereby enabling ease of operation and operation at higher speed of the power unit.