Kia Forte: CVVT & Camshaft Operation Principle

The CVVT has the mechanism rotating the rotor vane with hydraulic force generated by the engine oil supplied to the advance or retard chamber in accordance with the CVVT oil control valve control.

CVVT & Camshaft Description

Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine ...

[CVVT System Mode]

(1) Low Speed / Low Load (2) Part Load (3) Low Speed / High Load (4) High Speed / High Load ...

See also:

SS-A Solenoid Valve(ON/OFF) Installation
1. Install in the reverse order of removal.    • ...

Underdrive Brake Control Solenoid Valve(UD/B_VFS) Description
Underdrive Brake(UD/B) Control Solenoid is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the Underdrive Brake(UD/B). ...

Specification
Item  Specification Current voltage 13V Working voltage  DC 10~15V Operating force 3.0kg Max Voltage ...