Patent ID: 9103256
Filing Date: 2015-08-11
Classification: F01N,F02D

Abstract:
1. An exhaust emission control device comprising: a plurality of filter bodies configured to purify exhaust gas discharged from an engine; a purification casing comprising a plurality of purification cases respectively housing the plurality of filter bodies; an exhaust gas pressure sensor configured to detect an exhaust gas pressure in the purification casing; an exhaust gas temperature sensor configured to detect an exhaust gas temperature in the purification casing; and wherein the exhaust gas pressure sensor and the exhaust gas temperature sensor are disposed along an outer circumferential side of the purification casing so as to fit in a length range of the purification casing in an exhaust gas flow direction; wherein said plurality of the purification cases comprise a plurality of inside cases respectively housing the plurality of filter bodies and a plurality of outside cases respectively housing the plurality of inside cases, the plurality of outside cases being coupled to each other side by side in the exhaust gas flow direction; wherein the purification casing in the exhaust flow direction has a first end portion and a second end portion, and wherein a first lid portion closes the first end portion and a second lid portion closes the second end portion, each one of the first lid portion and second lid portion comprising an inner lid body, an outer lid body, and a first drain hole; and wherein the first drain hole is configured to drain water that accumulates between the inner lid body and the outer lid body and is disposed on at least a portion located at a lower part of the outer lid body in a state in which the purification casing is mounted on the engine.