초록 ▼

An exhaust system may include a canister that is disposed downstream from an engine. A particulate filter (PF) is disposed within the canister and filters particulates within an exhaust from the engine. A reducing catalyst is disposed within the canister, is on the PF, and promotes reaction of a liq

An exhaust system may include a canister that is disposed downstream from an engine. A particulate filter (PF) is disposed within the canister and filters particulates within an exhaust from the engine. A reducing catalyst is disposed within the canister, is on the PF, and promotes reaction of a liquid reductant in the exhaust after reception by the PF. A heating element is disposed within the canister and heats particulate matter in the PF.

대표청구항 ▼

What is claimed is: 1. An exhaust system comprising:a canister that is disposed downstream from an engine;a particulate filter (PF) that is disposed within said canister and that filters particulates within an exhaust from said engine;a reducing catalyst that is disposed on said PF and that promotes

What is claimed is: 1. An exhaust system comprising:a canister that is disposed downstream from an engine;a particulate filter (PF) that is disposed within said canister and that filters particulates within an exhaust from said engine;a reducing catalyst that is disposed on said PF and that promotes reaction of a liquid reductant in said exhaust after reception by said PF;a heating element that comprises N zones, that is disposed within said canister and that heats particulate matter in said PF, where N is an integer greater than 1; anda control module adjusts current to said heating element to heat a first one of said N zones and initiate regeneration of a first portion of said PF corresponding to said first one of said N zones,wherein said control module prevents heating of a second one of said N zones by said heating element while heating said first one of said N zones,wherein a second portion of said PF corresponding to said second one of said N zones reduces nitrogen oxide in the exhaust while said first portion is regenerated.