What does CVVT mean?

[DeclanLynn]

CVVT stands for Continuously Variable Valve Timing mechanism, which is one of the many variable valve timing technologies gradually applied to modern cars in recent years. Relevant information is as follows: 1. Introduction: The CVVT developed by Hyundai Motor Company of South Korea is a technology that changes the timing of the camshaft opening the intake valve through an electro-hydraulic control system, thereby controlling the required valve overlap angle. This technology focuses on the first letter C (Continue), emphasizing continuous changes according to the engine's working conditions, constantly controlling the size of the valve overlap angle to change the intake air volume of the cylinder. 2. The intake camshaft gear includes: an external gear driven by the timing belt, an internal gear connected to the intake camshaft, and a control piston that can move between the internal and external gears. When the piston moves, the helical gear on the piston changes the position of the external gear, thereby altering the timing effect. The amount of piston movement is determined by the hydraulic control valve, which is an electronically controlled valve whose oil pressure is controlled by the oil pump.