Daisuke Shibata

TL;DR: In this paper, a reduction agent adding a nozzle arranged in an exhaust passage located upstream from the exhaust passage was introduced to suppress the deterioration of exhaust emission and exhaust emission purifying catalyst caused by abnormality in the reduction agent feeding mechanism.

TL;DR: In this article, the removal of PMs captured by the filter and sulfur poisoning recovery control of the NOx absorbent can be conducted even if the internal combustion engine is left in an extremely low load operational state.

TL;DR: In this paper, an abnormality determination method for a particulate filter (5) capable of trapping and oxidizing particulate matter contained in exhaust gas was proposed, in which even a minor abnormality in which a small quantity of particulate material can pass through the filter can be determined with a high degree of accuracy.

TL;DR: In this article, an exhaust emission control apparatus for an internal combustion engine is capable of suppressing a nasty smell due to the hydrogen sulfide generated upon recovery from SOx poisoning, and the exhaust emissions control apparatus includes an NOx storage-reduction catalyst, reducing agent supplying section for supplying a reducing agent to the NOx catalyst.

TL;DR: A reducing-agent supplying mechanism for supplying reducing agents to an exhaust gas purifying catalyst was proposed in this paper, which detects abnormality such as leakage of the reducing agent and contributes to restraining the degradation of exhaust gas emission and destruction of the purifying catalytic catalyst caused by the abnormality.