About 60 results
https://drivepatents.com/patents/1084972 · 11 Aug 2004
The invention relates to an exhaust gas purifier that in order to improve the decrease of the catalytic action and the deterioration of the exhaust purification performance, has a catalyst (118) installed in the exhaust pipe of an engine (100) and a second...
https://drivepatents.com/patents/1087253 · 12 May 2004
The particle filter regeneration procedure includes regulating the delay (theta) of the injection (Q) as a function of the difference (s) between the temperature of the exhaust gas (Te) and a combustion reference (Tc). The quantity of fuel and duration of ...
https://drivepatents.com/patents/1089648 · 18 Feb 2004
A compression ignition internal combustion engine comprises a combustion chamber 16 to which air and fuel are supplied, an intake valve 19a for opening and closing a passage between the combustion chamber and an intake port 6 communicating with the combust...
https://drivepatents.com/patents/1089817 · 4 Feb 2004
Operating a particle filter system comprises passing an exhaust gas from a self-igniting IC engine through the particle filter, charging the filter with soot, and regenerating the filter depending on the prescribed soot charging conditions of the filter. C...
https://drivepatents.com/patents/1094247 · 6 Aug 2003
There is described a method of determining the amount of particulate accumulated in a particulate filter (9), based on determining possible variations in the spatial distribution and/or physical-chemical properties of the particulate as a function of engin...
https://drivepatents.com/patents/1095561 · 4 Jun 2003
The diagnostic system measures the pressure difference across the particle filter (28) in the exhaust (22) and computes the diagnostic parameter from this measure to detect failure of the particle filter. After measuring the pressure differential, stabiliz...
https://drivepatents.com/patents/1097599 · 12 Mar 2003
The invention relates to an internal combustion engine diagnosis apparatus comprising a cleanup catalyst (9) arranged on an exhaust pipe (15) of an internal combustion engine (1) and an HC adsorption catalyst (10) arranged downstream of and in parallel to ...
https://drivepatents.com/patents/1097583 · 12 Mar 2003
An exhaust emission control device comprises a particulate filter (44) for re-burning deposited soot, a temperature sensor (53) for detecting the exhaust gas temperature on the upper-stream side of the particulate filter (44), and a control unit (16) for d...
https://drivepatents.com/patents/1108608 · 14 Nov 2001
An exhaust gas purifying device performs a diagnosis of operational normality or abnormality of a catalyst on the basis of a change in catalyst temperature due to an increase in the reduction substance content of exhaust gas which is caused by implementing...
https://drivepatents.com/patents/1110521 · 5 Sep 2001
This system is characterized in that the engine (1) is associated with various components, and with means (17) for controlling the operation of these various components, further adapted to trigger a regeneration phase of the particulate filter by combustio...