Variable cam timing increases fuel efficiency

摘要

Hyundai is benefiting from BorgWarner's engine technologies that improve efficiency and performance. The variable cam timing (VCT) system developed by theTier One supplier is integrated into the OEM's 3- and 3.3-litre gasoline direct-injection V6 engines. The cam torque actuated phasers with mid-position lock included within the system respond fasterthan traditional VCT products and allow engine designers to introduce new calibration strategies. The phasers take advantage of the existing torsional energy in the valvetrain to actuate faster and operate under a wider range of engine speeds and temperatures than conventional VCT systems.