| 摘要 |
A torque increase resonator (1) includes: a plurality of resonance pipes (10, 12) that extend outward from an intake passage (54) supplying air to an internal combustion engine (50); one resonance chamber (20) that is formed so that end portions of extending portions of the plurality of resonance pipes are positioned in an internal space of the resonance chamber; and a valve (30) that opens and closes an opening of the extending portion of at least one resonance pipe of the plurality of resonance pipes, wherein the intake passage and the resonance chamber communicate with each other through the plurality of resonance pipes, and the plurality of resonance pipes are close to each other, and are disposed on a downstream side of a throttle (57) in a flow direction of air in the intake passage. |
