An intake system for an internal combustion engine is provided which comprises a variable valve control apparatus capable of variably and continuously controlling the amount of intake air of an internal combustion engine by varying valve lift characteristics of an intake valve, a collector fluidly connected with a plurality of intake passages for cylinders of the internal combustion engine, and a pressure control mechanism for producing within the collector a vacuum that increases with increase of one of the amount of intake air, engine speed and engine load of the internal combustion engine.

 
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< Engine valve actuation system

< Controlling an engine with adjustable intake valve timing

> Variable valve apparatus of internal combustion engine

> Control apparatus for multi-cylinder internal combustion engine and control method

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