Invention Grant
US07918082B2 Method and device intended for desulfation of a nitric oxide trap and regeneration of a particle filter
有权
用于一氧化氮捕集器脱硫和颗粒过滤器再生的方法和装置
- Patent Title: Method and device intended for desulfation of a nitric oxide trap and regeneration of a particle filter
- Patent Title (中): 用于一氧化氮捕集器脱硫和颗粒过滤器再生的方法和装置
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Application No.: US10995374Application Date: 2004-11-24
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Publication No.: US07918082B2Publication Date: 2011-04-05
- Inventor: Rémi Noirot , Michel Castagne , Jean-Baptiste Dementhon
- Applicant: Rémi Noirot , Michel Castagne , Jean-Baptiste Dementhon
- Applicant Address: FR Cedex FR Velizy-Villacoublay
- Assignee: Institut Francais du Petrole,Peugeot Citroen Automobiles SA, PCA SA
- Current Assignee: Institut Francais du Petrole,Peugeot Citroen Automobiles SA, PCA SA
- Current Assignee Address: FR Cedex FR Velizy-Villacoublay
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: FR0313832 20031124
- Main IPC: F01N3/00
- IPC: F01N3/00
Abstract:
A method is intended for desulfation of a nitric oxide trap (22) and regeneration of a particle filter (24) arranged in an exhaust line (20) for treating exhaust gas from an internal-combustion engine (10), notably a Diesel engine. The saturation rate of the trap and the clogging rate of the filter are evaluated and, as soon as one of the rates reaches a threshold value, the fuel/air ratio of the exhaust gas is increased without it reaching a fuel/air ratio of 1, then desulfation of trap (22) is performed in association with regeneration of particle filter (24).
Public/Granted literature
- US20050109021A1 Method and device intended for desulfation of a nitric oxide trap and regeneration of a particle filter Public/Granted day:2005-05-26
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