| 摘要 |
The invention relates to a resonator (1) for lowering airborne sound and solid-borne sound, comprising at least two annular chambers (2, 3, 17) arranged between an inlet piece (22) and an outlet piece (21) and comprising an inner pipe (4), which is arranged at least between the inlet piece (22) and the outlet piece (21) and which has wall holes (23) as a connection to the adjacent annular chambers (2, 3, 17). The invention is characterized in that a first annular chamber (2) has a U-shaped circumferential wall (6) coaxial to the resonator longitudinal axis (5), which U-shaped circumferential wall transitions at both ends into cylindrical end pieces (7, 8) for accommodating the inner pipe (4), and that at least one second annular chamber (3) has an L-shaped circumferential wall (12) coaxial to the resonator longitudinal axis (5), which L-shaped circumferential wall transitions into a cylindrical end piece (13) at the end of the L-shaped circumferential wall facing away from the first annular chamber (2) and which L-shaped circumferential wall lies on the part of the outer wall (9) of the first annular chamber (2) extending parallel to the resonator longitudinal axis (5) at the end (14) of the L-shaped circumferential wall facing the first annular chamber (2). |
