Muffler of an exhaust system

Abstract

A muffler for an exhaust system of a vehicle comprises an outer housing in an interior of which a Helmholtz chamber is formed. A feed body has an opening fluidically connected to the Helmholtz chamber. At least two exhaust pipes extend at least in sections within the outer housing, are spaced apart from each other, and form a flow path for an exhaust gas through the outer housing. The exhaust pipes each have at least two exhaust pipe sections which are entirely spaced apart from each other by a gap in one flow direction of the exhaust gas. The feed body surrounds the exhaust pipes over an entire circumference in a region of the gaps and fluidically connects the exhaust pipes to the Helmholtz chamber.

1 . A muffler for an exhaust system of a vehicle, comprising:
 an outer housing in an interior of which a Helmholtz chamber is formed;   a feed body which has an opening fluidically connected to the Helmholtz chamber and forms a neck of a Helmholtz resonator comprising the Helmholtz chamber; and   at least two exhaust pipes which extend at least in sections within the outer housing, are spaced apart from each other, and which form a flow path for an exhaust gas through the outer housing;   wherein the at least two exhaust pipes each have at least two exhaust pipe sections which are entirely spaced apart from each other by a gap in one flow direction of the exhaust gas, and wherein   the feed body surrounds the at least two exhaust pipes over an entire circumference in a region of the gaps and fluidically connects the at least two exhaust pipes to the Helmholtz chamber.   
     
     
         2 . The muffler according to  claim 1 , wherein the at least two exhaust pipes extend parallel to each other in the interior of the outer housing. 
     
     
         3 . The muffler according to  claim 1 , wherein the at least two exhaust pipes extend in a linear manner through the outer housing. 
     
     
         4 . The muffler according to  claim 1 , wherein the at least two exhaust pipes extend in a curved manner through the outer housing. 
     
     
         5 . The muffler according  claim 1 , wherein the feed body has two half-shells which together surround the at least two exhaust pipes. 
     
     
         6 . The muffler according  claim 1 , wherein the feed body is connected to the exhaust pipe sections by an intermaterial bond. 
     
     
         7 . The muffler according  claim 1 , wherein the feed body has two annular sections, each annular section surrounding the gap. 
     
     
         8 . The muffler according to  claim 7 , wherein the feed body has a feed section which extends from both annular sections, opens into the Helmholtz chamber, and extends between the at least two exhaust pipes. 
     
     
         9 . The muffler according to  claim 8 , wherein the feed section extends parallel to a flow direction of the exhaust gas in the at least two exhaust pipes. 
     
     
         10 . The muffler according  claim 1 , wherein the Helmholtz chamber is delimited at least in sections by an inner envelope surface of the outer housing. 
     
     
         11 . The muffler according  claim 1 , wherein a partition wall which delimits the Helmholtz chamber in sections and separates a further muffler chamber in the interior of the outer housing from the Helmholtz chamber is arranged within the outer housing.