Exhaust gas aftertreatment device and exhaust gas aftertreatment method
AssigneeMAN Energy Solutions SE
InventorAndreas Döring
Life of this patent
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Abstract
An exhaust-gas aftertreatment device (10) for an internal combustion engine, particularly for a marine diesel internal combustion engine operated using heavy fuel oil, includes a housing (11); an exhaust-gas chamber (12) defined by the housing (11), for permitting exhaust gas to flow continuously through the housing (11), an inlet (13) for permitting exhaust gas to flow into the housing and an outlet (14) for permitting exhaust gas to flow out of the housing (11); a sound damping chamber (15), defined by the housing (11) and coupled with the exhaust-gas chamber (12). The sound dampening chamber (15) is constructed to receive a fluid or a pourable solid at a fill level depending on the frequency of an exhaust sound to be damped.
Claims18
An exhaust-gas aftertreatment device (10) for an internal combustion engine, comprising:
- a housing (11);
- an exhaust-gas chamber (12) defined by the housing (11) for permitting exhaust gas to flow continuously through the housing (11);
- an inlet (13) for permitting exhaust gas to flow into the housing and an outlet (14) for permitting exhaust gas to flow out of the housing (11);
- a sound damping chamber (15), defined by the housing (11) and constructed to receive a liquid or a pourable solid at an infinitly variable fill level of the liquid or the pourable solid depending on the frequency of an exhaust sound to be damped and to permit the exhaust gas to directly contact the liquid or pourable solid;
- and
- a flow connection (31) located above the fill level for connecting the sound damping chamber (15) with the exhaust-gas chamber (12).
Dependencies are inferred from the claim text.