| 摘要 |
PROBLEM TO BE SOLVED: To make a system sealing property for components for controlling an intake air path in an internal combustion engine available at a moderate price. SOLUTION: At least one opening 20 is provided between a drive unit housing 1 and the intake air path 7, and via the opening 20, pressure difference between the drive unit housing 1 and the intake air path 7 is eliminated. COPYRIGHT: (C)2003,JPO
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