How does a VCT engine work?
VCT stands for Variable Camshaft Tuning. Using electrically controlled hydraulic valves, it directs engine oil into the camshaft phaser cavity. So, it uses an electrical signal to send a message to the solenoids to regulate the oil flow through your valve spools.
How does Cam Phaser work?
A cam phaser works with the camshaft to control valve timing. Cam phasers position the camshaft relative to the crankshaft, which is operated by a computer-controlled servo. Cam phasers rotate the camshaft slightly fore or aft to advance or retard the valve timing to suit the engine needs.
How does VCT solenoid work?
A VCT solenoid allows oil pressure to enter the camshaft phaser, which controls the timing of the camshafts through the PCM. It is essentially a spool valve controlled by an electronic circuit. Based on the spool valve’s position, oil pressure is allowed to retard camshaft timing or go into the phaser to advance.
Are VCT and VVT the same?
VVT (variable valve timing) is a general term for the system that keeps timing of the valves, and is typically designed to work with the camshaft. A VCT (variable cam timing) can be considered a form of VVT system. Manufactures changes the names to make them sound like “manufacture specific” designs.
What does turbocharged VCT mean?
Definition. Ti-VCT. Twin Independent Variable Camshaft Timing (automotive engines; Ford)
How does the Duratec Ti-VCT work?
The Duratec Ti-VCT is capable of continuously varying the timing of both the intake and exhaust camshafts for optimal airflow, controlled by the Engine Control Unit (ECU). Oil pressure-driven rotor units adjust the angle of the camshaft relative to the cam sprockets to alter valve opening.
What is the difference between VCT and Ti-VCT?
(Engines that have VCT on both camshafts are now designated as Ti-VCT.) The use of variable camshaft timing on the exhaust camshaft is for improved emissions, and vehicles with VCT on the exhaust camshaft do not require exhaust gas recirculation (EGR) as retarding the exhaust cam timing achieves the same result.
What is variable valve timing (VCT)?
Variable Camshaft Timing (VCT) is an automobile variable valve timing technology developed by Ford. It allows for more optimum engine performance, reduced emissions, and increased fuel efficiency compared to engines with fixed camshafts.
What is titwin independent variable camshaft timing?
Twin Independent Variable Camshaft Timing (Ti-VCT) is the name given by Ford to engines with the ability to advance or retard the timing of both the intake and exhaust camshafts independently, unlike the original versions of VCT, which only operated on a single camshaft.