| 摘要 |
<p>An intake system for an internal combustion engine is provided which comprises a variable valve control apparatus (1, 21) 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 (11), a collector (38) fluidly connected with a plurality of intake passages (34) for cylinders of the internal combustion engine, and a pressure control mechanism (54, 84, 85, 86, 87) for producing within the collector (38) a vacuum that increases with increase of one of the amount of intake air, engine speed and engine load of the internal combustion engine.</p> |
