VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) ACTUATOR CONSTRUCTION/OPERATION


BHE011320130T06

• A diaphragm design has been adopted.

• Normally, the rod is pushed by the force of the spring, closing the VDI valve. When intake manifold vacuum is applied to the diaphragm chamber, the rod is pulled, opening the VDI valve.

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Illustration shows 13B-MSP (High power)
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VDI valve
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VDI actuator
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Open
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Close
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Push
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Pull
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BARO
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Vacuum