RU93005065A - METHOD FOR MONITORING THE CONDITION OF A CATALYST THROUGH WHICH A CATALYZED LIQUID IS EXISTING - Google Patents

METHOD FOR MONITORING THE CONDITION OF A CATALYST THROUGH WHICH A CATALYZED LIQUID IS EXISTING

Info

Publication number
RU93005065A
RU93005065A RU93005065/06A RU93005065A RU93005065A RU 93005065 A RU93005065 A RU 93005065A RU 93005065/06 A RU93005065/06 A RU 93005065/06A RU 93005065 A RU93005065 A RU 93005065A RU 93005065 A RU93005065 A RU 93005065A
Authority
RU
Russia
Prior art keywords
catalyst
temperature
along
condition
average temperature
Prior art date
Application number
RU93005065/06A
Other languages
Russian (ru)
Other versions
RU2094624C1 (en
Inventor
Маус Вольфганг
Сварс Хельмут
Брюк Рольф
Original Assignee
Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4027207A external-priority patent/DE4027207A1/en
Priority claimed from DE4032721A external-priority patent/DE4032721A1/en
Application filed by Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх filed Critical Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх
Priority claimed from PCT/EP1991/001583 external-priority patent/WO1992003643A1/en
Publication of RU93005065A publication Critical patent/RU93005065A/en
Application granted granted Critical
Publication of RU2094624C1 publication Critical patent/RU2094624C1/en

Links

Claims (1)

Применение: изобретение относится к области машиностроения и может быть использовано в устройствах для очистки газов. Сущность изобретения: через катализатор вдоль направления течения пропускается катализируемая жидкость, в частности выхлопной газ двигателя внутреннего сгорания, от впускной стороны к выпускной стороне, причем распределение температуры измеряется на поверхности катализатора или внутри него при определении среднего значения температуры, а также по меньшей мере одного локального значения температуры, причем среднее значение температуры определяется вдоль направления течения, а локальное значение температуры соответствует температуре в пространственно ограниченном месте измерения, причем из среднего значения температуры и локального значения температуры выводится заключение о состоянии катализатора. Изобретение касается также контролируемого катализатора, которой снабжен первым термоизмерительным датчиком, который состоит из провода с изменяющимися в зависимости от температуры электрическим сопротивлением и вдоль лежащего в основном параллельно направлению течения измерительного участка, соединен с катализатором, и по меньшей мере одним вторым термоизмерительным датчиком, который соединен в одном месте измерения с катализатором. Изобретение позволяет получить простую и надежную оценку состояния катализатора, принимая во внимание старение и/или утомление.Application: the invention relates to the field of engineering and can be used in devices for gas cleaning. The inventive catalyzed liquid is passed through the catalyst along the flow direction, in particular the exhaust gas of the internal combustion engine, from the inlet side to the exhaust side, and the temperature distribution is measured on or inside the catalyst surface when determining the average temperature, as well as at least one local temperature values, with the average temperature value being determined along the direction of the flow, and the local temperature value corresponding to the temperature D in the spatially limited measurement site, and from the average temperature and local temperature values is concluded on catalyst condition. The invention also relates to a controlled catalyst, which is provided with a first thermal measuring sensor, which consists of a wire with electrical resistance varying with temperature and along a measuring section lying mainly parallel to the flow direction, connected to the catalyst, and at least one second thermal measuring sensor, which is connected in one place of measurement with the catalyst. The invention allows to obtain a simple and reliable assessment of the state of the catalyst, taking into account aging and / or fatigue.
RU93005065/06A 1990-08-28 1991-08-20 Method of control of condition of catalyzer and catalyzer RU2094624C1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4027207A DE4027207A1 (en) 1990-08-28 1990-08-28 MONITORING THE CATALYTIC ACTIVITY OF A CATALYST IN THE EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE
DEP4027207.9 1990-08-28
DEP4032721.3 1990-10-15
DE4032721A DE4032721A1 (en) 1990-10-15 1990-10-15 MONITORING THE FUNCTION OF A CATALYZER FLOWING FROM A CATALYZABLE FLUID
PCT/EP1991/001583 WO1992003643A1 (en) 1990-08-28 1991-08-20 Monitoring of the catalytic activity of a catalytic converter through which a catalysable fluid flows

Publications (2)

Publication Number Publication Date
RU93005065A true RU93005065A (en) 1995-04-30
RU2094624C1 RU2094624C1 (en) 1997-10-27

Family

ID=25896308

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93005065/06A RU2094624C1 (en) 1990-08-28 1991-08-20 Method of control of condition of catalyzer and catalyzer

Country Status (8)

Country Link
EP (1) EP0545976B1 (en)
JP (1) JP2523462B2 (en)
KR (1) KR100196616B1 (en)
BR (1) BR9106797A (en)
DE (1) DE59100961D1 (en)
ES (1) ES2048017T3 (en)
RU (1) RU2094624C1 (en)
WO (1) WO1992003643A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9224145D0 (en) * 1992-11-18 1993-01-06 Graviner Ltd Kidde Catalytic converters
DE4308661A1 (en) * 1993-03-18 1994-09-22 Emitec Emissionstechnologie Method and device for monitoring the function of a catalytic converter
GB2277698A (en) * 1993-05-08 1994-11-09 Ford Motor Co Assembling a temperature sensor in a catalytic converter
EP0974002B1 (en) 1997-04-09 2002-09-04 Emitec Gesellschaft für Emissionstechnologie mbH PROCESS FOR MONITORING A NOx ACCUMULATOR
DE19714715A1 (en) * 1997-04-09 1998-10-15 Emitec Emissionstechnologie Nitrous-oxide-accumulator monitoring system in exhaust-pipe
JP4513629B2 (en) * 2005-03-29 2010-07-28 トヨタ自動車株式会社 Vehicle control device
DE502007001990D1 (en) 2007-08-31 2009-12-24 Umicore Ag & Co Kg Method for testing the state of aging of a catalyst on board a vehicle
GB2475318B (en) * 2009-11-16 2016-08-10 Gm Global Tech Operations Llc Method for diagnosing a catalytic device of an engine exhaust gas after-treatment system
CN102207015B (en) * 2011-05-20 2015-02-25 潍柴动力股份有限公司 Temperature prediction device and method for selective catalytic reduction (SCR) catalytic converter
JP6142468B2 (en) * 2012-06-01 2017-06-07 トヨタ自動車株式会社 Catalyst protection device for internal combustion engine
JP5849858B2 (en) * 2012-06-01 2016-02-03 トヨタ自動車株式会社 Catalyst protection device for internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2351828A1 (en) * 1973-10-16 1975-04-24 Volkswagenwerk Ag Vehicle engine catalytic exhaust purifier - has catalytic temperature sensor downstream of reactor to monitor reactor failure
JPS5134935A (en) * 1974-09-20 1976-03-25 Nippon Kokan Kk SEIDENTOYUS OCHI
DE2643739C2 (en) * 1976-09-29 1986-03-13 Robert Bosch Gmbh, 7000 Stuttgart Method for monitoring the activity of catalytic converters for exhaust gas purification
IT1187855B (en) * 1986-01-14 1987-12-23 Fiat Auto Spa PROTECTIVE DEVICE FOR THE CATALYST OF A CATALYTIC EXHAUST FOR VEHICLES
DE3710268A1 (en) * 1987-03-28 1988-10-06 Phywe Systeme Gmbh METHOD FOR MONITORING THE FUNCTION OF CATALYSTS
WO1990006432A1 (en) * 1988-12-03 1990-06-14 Robert Bosch Gmbh Engine exhaust system
JPH0621552B2 (en) * 1989-02-13 1994-03-23 いすゞ自動車株式会社 Reburner for particulate trap

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