About 60 results
https://drivepatents.com/patents/1075719 · 20 Jul 2005
An exhaust purifying member (31) is located in an exhaust passage (26) of an internal combustion engine (1). A temperature sensor (33) detects the temperature of exhaust gas at an exit of the exhaust purifying member. A diagnosis means diagnoses the state ...
https://drivepatents.com/patents/1076269 · 29 Jun 2005
An exhaust gas recirculation system is configured to enable a large amount of exhaust gas to be recirculated to the intake passage (2) of an engine while reducing contamination of the inside of the intake passage (2) caused by the recirculated exhaust gas ...
https://drivepatents.com/patents/1076702 · 22 Jun 2005
A diesel particulate filter (41) which traps particulate matter contained in the exhaust gas of a diesel engine (1) comprises an oxidation catalyst (41A) which exhibits a temperature-raising effect during regeneration of the filter (41). A controller (31) ...
https://drivepatents.com/patents/1077999 · 11 May 2005
In order to calculate an estimation of the amount of deposited particulates in a first filter (61) or a second filter (62), a first estimation calculating section (100) for outputting first estimation data (XA) based on pressure differential across the fil...
https://drivepatents.com/patents/1077972 · 11 May 2005
In an exhaust gas cleaning apparatus (30) in which a before and after differential pressure ( DELTA P) of a filter (32) used to trap particulates is detected for regeneration of the filter (32), a time at which, during filter regeneration, the temperature ...
https://drivepatents.com/patents/1078129 · 4 May 2005
Increase in quantity of particulates during a prescribed time period is acquired as first difference data (DX) that is based on pressure differential ΔP across a filter (32) and derived from first estimation data (D2) obtained from a first estimation calc...
https://drivepatents.com/patents/1079263 · 16 Mar 2005
A pressure detection mechanism for a catalyst (450) of an engine (1000), in which the catalyst (450) includes an upstream NSR catalyst (460) and a downstream DPNR catalyst (470) stored in a catalyst casing, which includes a DPNR front pressure detection pi...
https://drivepatents.com/patents/1080834 · 12 Jan 2005
A main particulate filter (22m) having a relatively large volume is arranged in an exhaust passage of an engine, and an auxiliary particulate filter (22s) having a relatively small volume is arranged in the exhaust passage upstream of the main particulate ...
https://drivepatents.com/patents/1082801 · 3 Nov 2004
The leak of exhaust system (5,6,7) is detected by leak detection means (20), and when leak was detected, the diagnosis relating to air-fuel ratio feedback control or catalyst (6) is stopped or corrected. A place and an amount of the leak are detected and a...
https://drivepatents.com/patents/1083342 · 6 Oct 2004
A controller (31) determines whether, during previous regeneration processing of a filter (41), the previous regeneration processing was interrupted or the previous regeneration processing was completed without interruption. An amount of DPM trapped in the...