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1. (WO1997016632) EXHAUST EMISSION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016632 International Application No.: PCT/JP1996/003184
Publication Date: 09.05.1997 International Filing Date: 30.10.1996
Chapter 2 Demand Filed: 29.11.1996
IPC:
F01N 3/023 (2006.01) ,F01N 3/025 (2006.01) ,F01N 3/027 (2006.01) ,F01N 3/08 (2006.01) ,F01N 3/20 (2006.01) ,F01N 3/28 (2006.01) ,F01N 9/00 (2006.01) ,F02B 3/06 (2006.01) ,F02D 41/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02
for cooling, or for removing solid constituents of, exhaust
021
by means of filters
023
using means for regenerating the filters, e.g. by burning trapped particles
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02
for cooling, or for removing solid constituents of, exhaust
021
by means of filters
023
using means for regenerating the filters, e.g. by burning trapped particles
025
using fuel burner or by adding fuel to exhaust
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02
for cooling, or for removing solid constituents of, exhaust
021
by means of filters
023
using means for regenerating the filters, e.g. by burning trapped particles
027
using electric or magnetic heating
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
18
characterised by methods of operation; Regulation
20
specially adapted for catalytic conversion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
28
Construction of catalytic reactors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
9
Electrical control of exhaust gas treating apparatus
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3
Engines characterised by air compression and subsequent fuel addition
06
with compression ignition
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
Applicants:
TOYOTA JIDOSHA KABUSHIKI KAISHA [JP/JP]; 1, Toyota-cho Toyota-shi Aichi 471-71, JP (AllExceptUS)
KINUGASA, Yukio [JP/JP]; JP (UsOnly)
IGARASI, Kouhei [JP/JP]; JP (UsOnly)
ITOU, Takaaki [JP/JP]; JP (UsOnly)
Inventors:
KINUGASA, Yukio; JP
IGARASI, Kouhei; JP
ITOU, Takaaki; JP
Agent:
ISHIDA, Takashi ; A. Aoki & Associates Toranomon 37 Mori Building 5-1, Toranomon 3-chome Minato-ku Tokyo 105, JP
Priority Data:
7/28178430.10.1995JP
8/3505722.02.1996JP
Title (EN) EXHAUST EMISSION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
(FR) APPAREIL DE REGULATION DES EMISSIONS DE L'ECHAPPEMENT POUR UN MOTEUR A COMBUSTION INTERNE
Abstract:
(EN) To accomplish an optimum regeneration operation of an exhaust emission control apparatus (124), the quantity of nitrogen oxide (C) absorbed in catalysts (125, 812) and an exhaust gas temperature (T) are predicted on the basis of future driving condition information obtained from a car navigation system (141, 841), etc., and an appropriate time for regeneration is determined at which the absorption quantity of the catalysts (125, 812) is expected to be large and the exhaust gas temperature (T) is expected to be in a predetermined temperature range. When the time for regeneration is reached, the exhaust gas is made rich and the nitrogen oxides are emitted from the catalyst (125, 812) to regenerate the catalyst. The nitrogen oxides emitted from the catalyst (125, 812) are reduced to innoxious substances by unburnt hydrocarbons in the exhaust gas, etc. When this apparatus is applied to a particulate filter (814) of a diesel engine, the chance of operation for raising the exhaust gas temperature (T) decreases, so that deterioration of the fuel cost can be restricted.
(FR) Afin d'effectuer une régénération optimale d'un appareil (124) de régulation des émissions de l'échappement, la quantité d'oxyde d'azote (C) absorbée par des catalyseurs (125, 812) et une température des gaz d'échappement (T) sont prédites sur la base de renseignements sur les futures conditions de conduite, fournis par un système (141, 841) de navigation automobile ou autre, et un moment approprié pour la régénération est déterminé, moment auquel on s'attend à ce que la quantité absorbée par les catalyseurs (125, 812) soit importante et à ce que la température des gaz d'échappement (T) soit dans une gamme de températures déterminée. Quand le moment de la régénération est atteint, les gaz d'échappement sont enrichis et les oxydes d'azote sont dégagés par le catalyseur (125, 812) pour le régénérer. Les oxydes d'azote ainsi dégagés sont réduits à l'état de substances inoffensives par des hydrocarbures non brûlés dans les gaz d'échappement, etc. Quand cet appareil est mis en ÷uvre pour un filtre de particules (814) d'un moteur Diesel, la probabilité que le fonctionnement se fasse d'une manière faisant monter la température (T) des gaz d'échappement diminue, de telle sorte que l'on peut réduire les frais de carburant.
Designated States: CN, JP, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0859132US6032461JP3106502KR1019990066960