US 12,110,849 B2
Acoustic component and air routing line having an acoustic component
Andreas Link, Mundelsheim (DE)
Assigned to MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed by MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed on Aug. 17, 2022, as Appl. No. 17/889,592.
Application 17/889,592 is a continuation of application No. PCT/EP2021/050935, filed on Jan. 18, 2021.
Prior Publication US 2022/0389892 A1, Dec. 8, 2022
Int. Cl. F02M 35/12 (2006.01); F01N 1/02 (2006.01); F02M 35/10 (2006.01); F16L 55/033 (2006.01)
CPC F02M 35/1211 (2013.01) [F02M 35/10262 (2013.01); F02M 35/1216 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An acoustic component comprising:
a flow channel for air, the flow channel comprising an inlet pipe, an outlet pipe, and a flow channel section arranged between the inlet pipe and the outlet pipe,
wherein the flow channel section comprises:
a cylindrical wall radially surrounding the flow channel where the flow channel extends through the flow channel section;
a resonator chamber having an air-filled open interior, formed at a radially outer side of the cylindrical wall, the air-filled open interior of the resonator chamber forming a silencer volume,
wherein the flow channel extends through the flow channel section;
wherein the silencer volume is connected to the flow channel in the flow channel section via openings formed in the cylindrical wall of the flow channel section;
a flow deflection device arranged at least in the flow channel section with the silencer volume,
wherein the flow deflection device comprises at least one step, formed as a step change in a cross section of the flow channel at the at least one step and positioned upstream of the openings, the flow deflection device is configured to deflect a flow of the air in the flow channel section with the silencer volume away from the openings;
wherein the openings in the flow channel section are arranged in a sheltered zone of the flow deflection device;
wherein the flow deflection device comprises
at least one longitudinal stay arranged at a radially inner side of the cylindrical wall radially surrounding the flow channel, the longitudinal stay projecting into the flow channel and extending in an axial direction along a longitudinal axis of the flow channel along the flow channel section.