Exhaust muffler for an exhaust system of an internal combustion engine
AssigneePurem GmbH
InventorsNicolas Mettenleiter, Thomas Uhlemann, Frank Berkemer
Life of this patent
Estimating the term…
Abstract
An exhaust muffler for an exhaust system of an internal combustion engine, especially for a vehicle, includes a muffler housing with a flow volume (42), through which exhaust gas can flow, an exhaust gas inlet (28) and an exhaust gas outlet (36). A first resonator chamber (44) is open towards the flow volume (42) via a first resonator neck (68). A second resonator chamber (46) is open towards the flow volume (42) via a second resonator neck (74). A resonator pipe (52) provides the first resonator neck (68) and the second resonator neck (74).
Claims15
An exhaust muffler for an exhaust system of an internal combustion engine, the exhaust muffler comprising:
- a muffler housing having a flow volume, through which exhaust gas flows, an exhaust gas inlet, an exhaust gas outlet, a first resonator chamber and a second resonator chamber;
- and
- a resonator pipe providing a first resonator neck and a second resonator neck, wherein the first resonator chamber is open to the flow volume via the first resonator neck and the second resonator chamber is open to the flow volume via the second resonator neck, the muffler housing comprising:
- a circumferential wall elongated in a direction of a housing longitudinal axis;
- a first front wall at a first axial end area of the circumferential wall;
- a second front wall at a second axial end area of the circumferential wall;
- a first partition between the front walls, wherein the first resonator chamber is separated from the flow volume by the first partition;
- and
- a second partition between the front walls, wherein the second resonator chamber is separated from the flow volume by the second partition, the exhaust gas inlet comprising an inlet pipe passing through one of the two resonator chambers and being open in an area of one of the two front walls and providing an inlet duct, the exhaust gas outlet comprising an outlet pipe passing through the other of the two resonator chambers and being open in an area of the other of the two front walls and providing an outlet duct.
An exhaust muffler for an exhaust system of an internal combustion engine, the exhaust muffler comprising:
- a muffler housing having a flow volume, through which exhaust gas flows, an exhaust gas inlet, an exhaust gas outlet, a first resonator chamber and a second resonator chamber;
- and
- a resonator pipe providing a first resonator neck and a second resonator neck, wherein the first resonator chamber is open to the flow volume via the first resonator neck and the second resonator chamber is open to the flow volume via the second resonator neck, the muffler housing comprising:
- a circumferential wall elongated in a direction of a housing longitudinal axis;
- a first front wall at a first axial end area of the circumferential wall;
- a second front wall at a second axial end area of the circumferential wall;
- a first partition between the front walls, wherein the first resonator chamber is defined by the first partition and the first front wall and is separated from the flow volume by the first partition;
- a second partition between the front walls, wherein the second resonator chamber is defined by the second partition and the second front wall and is separated from the flow volume by the second partition;
- a flow chamber of the flow volume defined by the first partition and the second partition, wherein at least one of:
- the exhaust gas inlet comprises an inlet pipe passing through one of the two resonator chambers and providing an inlet duct open to the flow chamber in an area of one of the two partitions;
- and
- the exhaust gas outlet comprises an outlet pipe passing through the other of the two resonator chambers and providing an outlet duct open to the flow chamber in an area of the other of the partitions.
Dependencies are inferred from the claim text.