![Kia Forte: [CVVT System Mode] - Exhaust Emission Control System - Emission Control System - Kia Forte TD 2014-2018 Service Manual](images/pages/small/2.png)
Kia Forte: [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:
Spark Plug Description
A spark plug is a device for delivering electric current from an ignition
system to the combustion chamber of a spark-ignition engine to ignite the compressed
fuel/air mixture therein by mean ...
Inspection
Component Inspection
1.
Remove the clutch switch.
(Refer to Clutch Switch - "Removal")
2.
Push the clutch switch in the di ...
On-board Refueling Vapor Recovery (ORVR) valve Installation
1.
Installation is the reverse of removal.
...
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