| 摘要 |
The invention concerns a device for closing an internal combustion engine air intake conduits, comprising a butterfly valve provided with several closure elements (1) and a sheath (4) provided on either side with lateral openings for allowing air through and having a longitudinal recess wherein the butterfly valve is inserted and can rotate about an axis of rotation, wherein the closure elements (1) include a plate having a substantially planar functional surface which, when the device is in open position, is aligned with the lower or upper edge of a corresponding opening of the sheath and wherein the axis of rotation passes through the plate of at least one closure element.
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