About 147 results
https://drivepatents.com/patents/1003997 · 28 Mar 2012
A present air-fuel ratio control apparatus, applied to an internal combustion engine having a catalyst disposed in an exhaust passage of the engine, comprises a downstream air-fuel ratio sensor 56 (oxygen concentration cell type oxygen concentration sensor...
https://drivepatents.com/patents/1005858 · 25 Jan 2012
A method of controlling NO x emissions in an internal combustion engine is proposed, wherein the engine comprises an exhaust system with oxidation - promoting catalyst means (22) having a NO oxidation efficiency, and wherein the engine is normally operated...
https://drivepatents.com/patents/1007725 · 23 Nov 2011
An exhaust purifying device for an internal combustion engine which can restrict an influence of a measurement error in a NOx sensor provided at the downstream side of a catalyst and can optimally maintain a NOx purifying rate. The device comprises a catal...
https://drivepatents.com/patents/1007719 · 23 Nov 2011
The present invention provides an internal combustion engine exhaust purification apparatus includes a filter (30) configured to collect particulate matter contained in exhaust gas, a selective catalytic reduction converter (40) provided downstream of the ...
https://drivepatents.com/patents/1009054 · 5 Oct 2011
Provided is an exhaust gas purifying apparatus for a supercharger-equipped internal combustion engine, which can favorably combine the realization of the prevention of an excessive back pressure rise and the securement of an exhaust gas emission performanc...
https://drivepatents.com/patents/1010340 · 10 Aug 2011
An exhaust system (16) for a compression-ignition engine (10) includes an exhaust gas after-treatment assembly, the after-treatment assembly comprising a catalyst device and an SCR device (34). The catalyst device comprises a three-way catalyst device (30)...
https://drivepatents.com/patents/1010218 · 10 Aug 2011
An occluding member is provided in an exhaust system of an internal combustion system, to thus trap and desorb a plurality of types of hydrocarbons having different boiling points. First calculation means estimates a distribution of presence of the hydroca...
https://drivepatents.com/patents/1010224 · 10 Aug 2011
An exhaust gas purifying apparatus for an internal combustion engine is provided. The apparatus includes a first catalyst and a second catalyst. The first catalyst is provided in an exhaust passage of the engine, and can remove NOx in exhaust gases from th...
https://drivepatents.com/patents/1011875 · 22 Jun 2011
An internal combustion engine control device comprises a turbocharger (24) provided on an internal combustion engine (1); a first exhaust valve (30A) that opens and closes an exhaust port that communicates with a first exhaust passageway (34) on which a tu...
https://drivepatents.com/patents/1012799 · 25 May 2011
An internal combustion engine includes a supercharger (66, 67) capable of compressing intake air and feeding the compressed intake air into a combustion chamber (22, 23), boost pressure detecting means (86) for detecting the boost pressure, air/fuel ratio ...