| 摘要 |
PROBLEM TO BE SOLVED: To avoid the collapse of a tumbling flow in a combustion chamber by preventing an excessive increase in flow rate due to the contractive flow of intake air. SOLUTION: The intake device comprises a partition plate 12 for partitioning an intake passage 10 into upper and lower parts and an on-off valve 1 arranged on the upstream side of the partition plate 12 and adapted to be rotated around a shaft 11 and closed for closing the intake passage 10 at one side with a shield plate 13. A communication passage 15 is provided near the shaft 11 of the on-off valve 1 for communicating an upstream lower side flow path 10d on the upstream side of the on-off valve 1 with a downstream upper side flow path 10a on the downstream side of the on-off valve 1 when the on-off valve 1 is closed. COPYRIGHT: (C)2004,JPO
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