HYDRAULIC ACTUATOR AND GAS EXCHANGE VALVE ARRANGEMENT

摘要

The hydraulic actuator (35) for opening a gas exchange valve of an internal combustion engine comprises a drive piston (7) that is arranged in a pressurizing chamber (9) for pressurizing hydraulic fluid. A hydraulic valve (10) having two positions is used for operating the hydraulic actuator (35). The invention also concerns a gas exchange valve arrangement.