About 147 results
https://drivepatents.com/patents/1076787 · 22 Jun 2005
An apparatus for purifying an exhaust gas of a diesel engine, characterized in that it has an NOx adsorption and reduction type catalyst and a diesel particulate filter for oxidizing and removing particulate matters in the exhaust gas, which are provided i...
https://drivepatents.com/patents/1076607 · 22 Jun 2005
The catalyst is part of an IC engine. It is brought to desulphurization temperature to carry out a desulphurization process to remove catalyst deactivation. The process consists of several stages. The need for desulphurization is established, energy requir...
https://drivepatents.com/patents/1076847 · 15 Jun 2005
The method for the operating of an exhaust gas cleaning system with a particle filter (4) for the separating of soot from the exhaust gas of a self-igniting internal combustion engine (1) entails the continuous or discontinuous oxidizing of the soot by the...
https://drivepatents.com/patents/1076837 · 15 Jun 2005
Internal combustion engine comprises an exhaust gas purification system comprising a noble-metal-free precatalyst for start-up connected by an exhaust gas conduit to a downstream main catalyst. An independent claim is also included for operating an interna...
https://drivepatents.com/patents/1077294 · 1 Jun 2005
An exhaust gas control apparatus includes a second catalyst converter (35) having an exhaust gas control function in an exhaust passage (14) in an engine (10). In the exhaust gas control apparatus, the second catalyst converter (35) is recovered by burning...
https://drivepatents.com/patents/1077492 · 1 Jun 2005
An exhaust gas purification device for an internal combustion engine which operates at a lean air-fuel ratio and at the stoichiometric air-fuel ratio or at a rich air-fuel ratio as required, comprising: an exhaust gas purifying catalyst (5) disposed in an ...
https://drivepatents.com/patents/1077970 · 11 May 2005
In order to calculate an estimation of the quantity of accumulated particulates in a filter (32), a first estimation calculation unit (100) that outputs first estimation data (XA) calculated from the filter before and after differential pressure, and a sec...
https://drivepatents.com/patents/1078855 · 6 Apr 2005
A NOx occluding member (23) that occludes NOx when the air-fuel ratio is on the fuel-lean side is disposed in an engine exhaust passage. An NOx ammonia sensor (29) is disposed in the engine exhaust passage downstream of the NOx occluding member (23). A sur...
https://drivepatents.com/patents/1079117 · 23 Mar 2005
In a diesel engine structured to execute a low temperature combustion, such low temperature combustion and a fuel addition/after injection are inhibited (S 116, S118) upon detection of deterioration in fuel injection amount so as to execute a normal combus...
https://drivepatents.com/patents/1079227 · 16 Mar 2005
In a variable nozzle turbocharger (VNT) provided upstream of an exhaust gas filter (32), an exhaust gas flow path is formed in the direction of rotation of a turbine wheel (60) and so as to enclose the outer periphery of the turbine nozzle (60). A variable...