| 摘要 |
<P>PROBLEM TO BE SOLVED: To transmit well engine driving noise to the inside of a compartment of an automobile with reduced load on a component, in a noise transmission device for the automobile. <P>SOLUTION: The noise transmission device is provided with a housing 1 including inner partition walls 2, and is partitioned by the housing 1 and the inner partition walls 2 into two subspaces 3, 4. The subspaces 3, 4 are divided by a transmission flap valve 6 penetrating the partition walls 2 and capable of swinging about swing axis lines 5. A first subspace 3 is connected with an intake pipe 17 of an internal combustion engine, and a second subspace 4 is connected with the compartment of the automobile, so as to allow acoustic propagation. An elastic seal member 8 at least partially penetrated and cut is disposed between a peripheral surface 7 of the transmission flap valve 6 and the housing 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
