A CONTROL ARRANGEMENT FOR A GAS EXCHANGE VALVE IN AN INTERNAL COMBUSTION PISTON ENGINE AND METHOD OF OPERATING A CONTROL ARRANGEMENT FOR A GAS EXCHANGE VALVE IN AN INTERNAL COMBUSTION ENGINE

摘要

Invention relates to a control arrangement (20) for a gas exchange valve (12) adapted between a cam device (18) and the gas exchange valve (12) in an internal combustion piston engine (100), comprising a mechanical limiter (42) configured to prevent movement of a first piston unit (34) in a direction closing the valve at a predetermined location of the first piston unit (34), a hydraulic control space (36) and a hydraulic fluid flow path (48) opening into the hydraulic control space (36) and connectable to a hydraulic fluid supply (50), adapted to fill the hydraulic control space (36) with the hydraulic fluid. Invention relates also to method of operating a control arrangement (20) for a gas exchange valve (12) in an internal combustion piston engine (100).