About 147 results
https://drivepatents.com/patents/957864 · 9 Sep 2015
An exhaust heating device can be actuated only in a limited vehicle operational state, and it is desirably actuated with high efficiency. An operation control apparatus for an internal combustion engine according to the present invention includes: an exhau...
https://drivepatents.com/patents/959112 · 15 Jul 2015
In an exhaust gas purification system for an internal combustion engine provided with a particulate filter and an SCR catalyst arranged downstream of the particulate filter, the present invention is intended to decrease an amount of NOx discharged into the...
https://drivepatents.com/patents/960394 · 3 Jun 2015
A three-way catalyst (20) and an NO x adsorption catalyst (22) are disposed in an engine exhaust passage. In a predetermined low-load engine operation area, combustion in a combustion chamber (5) is carried out at a lean base air-fuel ratio and an air-fuel...
https://drivepatents.com/patents/961815 · 8 Apr 2015
In an exhaust gas purification apparatus for an internal combustion engine which is provided with an NOx catalyst arranged in an exhaust passage of the internal combustion engine, the present invention has for its problem to be solved to suppress an increa...
https://drivepatents.com/patents/951487 · 8 Apr 2015
An object is to reduce the increase in the fuel consumption or the increase in emissions caused by processing for raising the temperature of an NO x catalyst in an exhaust gas purification apparatus for an internal combustion engine having the NO x catalys...
https://drivepatents.com/patents/972509 · 16 Jul 2014
In cases where at the upstream side of an NOx selective reduction catalyst there is provided another catalyst, sulfur poisoning of both the catalysts is recovered in an appropriate manner. To this end, provision is made for an NH 3 generation catalyst arra...
https://drivepatents.com/patents/973556 · 18 Jun 2014
The method involves supplying defined or sufficient amount of charging air into a burner (10) from a boost pressure line (2) of the internal combustion engine (1), if boost pressure is high. The air heated by burner is supplied to exhaust line(7) arranged ...
https://drivepatents.com/patents/973836 · 11 Jun 2014
The NO x storage catalyst (22) and the NO x selective reduction catalyst (23) are arranged in the engine exhaust passage. In the engine low load operating region, a combustion is performed in the combustion chamber (5) under a lean base air-fuel ratio and ...
https://drivepatents.com/patents/975719 · 23 Apr 2014
The invention relates to an exhaust gas thermal enhancer (TE) to be installed to gas pipe (PIP) for increasing exhaust gas temperature in gas fluid (FLUID) to start the reaction of removing methane from gas fluid (FLUID) in diesel engine exhaust gas or equ...
https://drivepatents.com/patents/978086 · 26 Feb 2014
An exhaust gas purification control device for an internal combustion engine is provided with: a detection unit (128B) for detecting an air-fuel ratio or rich/lean state of exhaust gas that flows out of a first catalyst (126) disposed at upstream side; est...