| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of reducing noise from the intake system of a vehicle. SOLUTION: This torque increase resonator 1 comprises a surge tank 2 installed between a throttle valve and an intake manifold formed in the intake system of the engine of a vehicle and a mass damper 3 which is installed in the surge tank 2 and in which at least a part of a partition wall 31 forming an airtight space therein is formed of a resonance part 32 formed of an elastic thin film. In this torque increase resonator, the function of the surge tank (to suppress the pulsation of intake air) and the function of reducing noise by the mass damper are provided without increasing the size thereof. COPYRIGHT: (C)2008,JPO&INPIT
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