| 摘要 |
<p>An intake control device for an internal combustion engine comprises, in an intake passage (2) downstream of a throttle valve (5), a secondary valve (6). Said secondary valve is bypassed by a low speed air passage (7) of small cross-section. Within said low speed air passage, an intake opening-closing valve (9) is provided which is to be closed while the intake valve (3) of the internal combustion engine is open. The intake opening-closing valve (9) is controlled via an engine crankshaft.</p> |
