Mazda 6 - Page 38

B30
VALVE MECHANISM
Hydraulic Pressure Flow Diagram
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Component and function
AME2211N016
1Oil pan
2Oil pump
3Oil pipe
4 Oil filter
5 Oil control valve (OCV)
6 Oil control valve (OCV) adapter
7 Camshaft
8 Variable valve timing actuator
9 Cylinder block
Variable valve timing actuator • Continuously modifies the phases of the intake camshaft and crankshaft at the forward
end of the intake camshaft using hydraulic pressure from the oil control valve (OCV).
Oil control valve (OCV) • Operated by current (duty signal) from the PCM. Switches the hydraulic oil passages
to the variable valve timing actuator.
CKP sensor • Inputs engine revolution signal to the PCM.
CMP sensor • Inputs cylinder identification signal to the PCM.
PCM • Controls the oil control valve (OCV) so that optimum valve timing is obtained according
to engine operation conditions.