| 摘要 |
A resonator (1) has at least first and second annular chambers (2, 3, 17) arranged between inlet and outlet pieces (22, 21). An inner pipe (4) extends between the inlet piece (22) and the outlet piece (21) and has wall holes (23) that connect to the annular chambers (2, 3, 17). The first annular chamber (2) has a U-shaped circumferential wall (6) coaxial to the resonator longitudinal axis (5) and transitions at both ends to engage the inner pipe (4). The second annular chamber (3) has an L-shaped circumferential wall (12) coaxial to the resonator longitudinal axis (5). An end of the L-shaped circumferential wall remote from the first annular chamber (2) transitions into a cylindrical end piece (13), and an opposite end of the L-shaped circumferential wall lies on part of the outer wall (9) of the first annular chamber (2) extending parallel to the resonator longitudinal axis (5). |
| 主权项 |
1. A resonator (1) for lowering airborne sound and solid-borne sound, comprising at least first and second annular chambers (2, 3, 17) arranged between an inlet piece (22) and an outlet piece (21) and comprising an inner pipe (4) arranged at least between the inlet piece (22) and the outlet piece (21), the inner pipe (4) having wall holes (23) as a connection to the annular chambers (2, 3, 17), wherein
the first annular chamber (2) has a U-shaped circumferential wall (6) coaxial to a resonator longitudinal axis (5), the U-shaped circumferential wall transitions at both ends into cylindrical end pieces (7, 8) for accommodating the inner pipe (4), at least the second annular chamber (3) has an L-shaped circumferential wall (12) coaxial to the resonator longitudinal axis (5), an end of the L-shaped circumferential wall facing away from the first annular chamber (2) transitioning into a cylindrical end piece (13), and an end (14) of the L-shaped circumferential wall facing the first annular chamber (2) lying on a part of the outer wall (9) of the first annular chamber (2) extending parallel to the resonator longitudinal axis (5). |
