About 15 results
https://drivepatents.com/patents/938885 · 17 Aug 2016
A deterioration diagnosis device for an exhaust gas purification apparatus which performs inducement processing when the internal combustion engine (1) is operated at a lean air fuel ratio, measures, by means of air fuel ratio sensors, the air fuel ratio o...
https://drivepatents.com/patents/948487 · 7 Oct 2015
An object of the present invention is to increase the NO X purification rate of an unactivated SCR catalyst in an exhaust emission control system for an internal combustion engine that has an oxidation catalyst and the SCR catalyst disposed downstream of t...
https://drivepatents.com/patents/961963 · 8 Apr 2015
The present invention has for its object to provide a technology in which in an exhaust gas purification apparatus for an internal combustion engine which is provided with a catalyst for NH 3 generation, and a catalyst for removing or reducing NOx in an ex...
https://drivepatents.com/patents/963954 · 21 Jan 2015
Provided is an exhaust gas purification device that can elevate the exhaust gas temperature on the inlet side of a DPF (diesel particulate filter). The exhaust gas purification device includes a DOC (oxidation catalyst) (31) and the DPF (32) that are arran...
https://drivepatents.com/patents/969155 · 8 Oct 2014
An exhaust gas purification device, which purifies exhaust gas in first and second exhaust paths (20A, 20B) extending from an internal combustion engine is provided. The device includes a convergence path (22) extending from the area of convergence of the ...
https://drivepatents.com/patents/983884 · 2 Oct 2013
The method involves operating an exhaust aftertreatment system (1) in a combustion engine operated with an air overflow, where the separation of sooty particles from the exhaust gas takes place by a particle filter (5). The ammonia- to mono nitrogen oxide-...
https://drivepatents.com/patents/985606 · 13 Mar 2013
An aftertreatment subsystem includes first and second mounting interfaces, a fluid inlet and fluid outlet interface, and aftertreatment components (202, 204, 206), each having a central axis and axial extent. The central axes for the aftertreatment compone...
https://drivepatents.com/patents/986128 · 20 Feb 2013
The present invention relates to an exhaust gas purification device with which a low temperature characteristic of an exhaust gas post-processing device can be improved, a NOx reduction and purification rate can be increased, and smoke generation can be ef...
https://drivepatents.com/patents/995554 · 5 Dec 2012
Provided are an exhaust purification device for a diesel engine and an exhaust purification method that utilizes the exhaust purification device enabling effective utilization of exhaust gas heat and allowing reduction in the size of the device, by virtue ...
https://drivepatents.com/patents/995556 · 5 Dec 2012
Provided are an exhaust purification device for a diesel engine, and an exhaust purification method that utilizes this exhaust purification device enabling effective utilization of exhaust gas heat and allowing reduction in the size of the device, by virtu...