![Kia Sorento: [CVVT System Mode] - Exhaust Emission Control System - Emission Control System - Kia Sorento XM 2011-2024 Service Manual](images/pages/small/2.png)
Kia Sorento: [CVVT System Mode]
| (1) Low Speed / Low Load |
(2) Part Load |
|
|
| (3) Low Speed / High Load |
(4) High Speed / High Load |
|
|
| Driving Condition |
Exhaust Valve |
Intake Valve |
||
| Valve Timing |
Effect |
Valve Timing |
Effect |
|
| (1) Low Speed /Low Load |
Completely Advance |
* Valve Under-lap * Improvement of combustion stability |
Completely Retard |
* Valve Under-lap * Improvement of combustion stability |
| (2) Part Load |
Retard |
* Increase of expansion work * Reduction of pumping loss * Reduction of HC |
Retard |
* Reduction of pumping loss |
| (3) Low Speed /High Load |
Retard |
* Increase of expansion work |
Advance |
* Prevention of intake back flow (Improvement of volumetric
efficiency) |
| (4) High Speed /High Load |
Advance |
* Reduction of pumping loss |
Retard |
* Improvement of volumetric efficiency |
CVVT (Continuously Variable Valve Timing) System 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 con ...
See also:
Valve Body Removal
1.
Remove the air duct.
(Refer to Engine Mechanical System - "Air cleaner")
2.
Remove the battery and the battery tray.
...
Drive Belt Inspection
1.
Visually check the belt for excessive wear, frayed cords etc.
If any defect has been found, replace the drive belt.
...
In-car Sensor (DATC only) Description
An in-car air temperature sensor is located in the crash pad lower panel.
The sensor contains a thermistor which measures the temperature of the
inside. The signal decided by the resistance ...
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