Intermediate Locking Variable Valve Timing

Aisin Seiki

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Hydraulic intermediate locking mechanism

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Component parts (Multi Locking)

The conventional type of air intake VVT only changed the valve timing from the initial locked position suited for engine startup to allowing quick valve opening and closing.
Then came a VVT with an intermediate lock mechanism that expanded the timing control range to a region that significantly delayed valve opening and closing timing, and enabled both faster and slower opening and closing from the initial locked phase.

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