CN1806097A - Apparatus for adjusting the temperature of exhaust gases - Google Patents

Apparatus for adjusting the temperature of exhaust gases Download PDF

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Publication number
CN1806097A
CN1806097A CNA2004800162848A CN200480016284A CN1806097A CN 1806097 A CN1806097 A CN 1806097A CN A2004800162848 A CNA2004800162848 A CN A2004800162848A CN 200480016284 A CN200480016284 A CN 200480016284A CN 1806097 A CN1806097 A CN 1806097A
Authority
CN
China
Prior art keywords
exhaust
particulate filter
temperature
flow
heat exchanger
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA2004800162848A
Other languages
Chinese (zh)
Inventor
卡尔－约翰·卡尔松
保利娜·腾斯特伦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Truck Corp
Original Assignee
Volvo Lastvagnar AB
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
Application filed by Volvo Lastvagnar AB filed Critical Volvo Lastvagnar AB
Publication of CN1806097A publication Critical patent/CN1806097A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The invention relates to an apparatus for adjusting the temperature of exhaust gases passing through an exhaust system (11-17) of a vehicle having an internal combustion engine (10). The exhaust system is provided with an active regeneration filter (14) for collecting particles from the exhaust gas stream. The apparatus comprises a heat exchanger (12), which has a first flow passage for an exhaust gas stream from the exhaust manifold (11) of the engine to the particle filter (14) and a second flow passage for an exhaust gas stream from the particle filter (14) to the outlet pipe (17) of the exhaust system.

Description

Be used to regulate the device of exhaust gas temperature
Technical field
The present invention relates to a kind of equipment that is used to regulate through the exhaust gas temperature of the vent systems of vehicle with internal-combustion engine.Vent systems is equipped with an active regeneration filter that is used for collecting the exhaust flow particle.This device comprises heat exchanger.
Background technique
The active regeneration particulate filter can be used to the reprocessing of diesel engine exhaust, in this case, catches soot and dust granules in the waste gas, rather than goes in the environment around these materials are discharged into.Active regeneration refers to temperature and rises to such level in the upstream of filter discontinuously, so that particle can after-flame under this level.The oxidation catalyst that combines with filter can be used for increasing temperature.
Oxidation catalyst utilizes in the exhaust flow unburned fuel to create precondition for regenerative process.For instance, can unburned fuel be sent into exhaust flow by the conventional ejecting system of motor, this is referred to as the back and sprays.
The high temperature that produces in the active regeneration (based on oxygen) can make the gas temperature that discharges via blast duct for vehicle become very high (about 600 degrees centigrade).This may bring out fire and jeopardize other users on the road, such as the pedestrian on the road.
For example, a kind of method of cooled exhaust air can be to allow waste gas pass through with the cooler of surrounding atmosphere as cooling medium.This cooler should be equipped with fan, so that stop or during low speed driving, the suitable vehicle of this state provides cooling air in the particulate filter regeneration process at automobile.The vent gas cooler that fan is housed not only takes up space but also very expensive.
Summary of the invention
Therefore, an object of the present invention is to produce a kind of device of not only having saved cost but also having saved the space, be used for reducing the temperature of the exhaust flow of the motor vehicle emission that the diesel engine that has the active regeneration particulate filter is installed.
Based on above-mentioned purpose and special device is used to regulate the temperature through the waste gas of the vent systems of vehicle with internal-combustion engine.Vent systems is provided with the active regeneration filter that is used for collecting the exhaust flow particle, and this device contains heat exchanger.This device is characterised in that according to the present invention, heat exchanger has first flow channel and second flow channel, first flow channel is used for exhaust flow and flows to particulate filter from the gas exhaust manifold of motor, and second flow channel is used for exhaust flow flows to vent systems from particulate filter discharge tube.Because the structure of this device can reduce the exhaust flow temperature that automobile is discharged, can also utilize the heat energy heating to flow into the air-flow of particulate filter simultaneously.This means that also the less fuel of needs is used for active regeneration.
Relevant advantageous embodiment of the present invention can be referring to the Patent right requirement of subordinate.
Description of drawings
Exemplary embodiment with reference to the accompanying drawings is described in greater detail below the present invention.Accompanying drawing has diagrammatically been represented an internal-combustion engine that has according to device of the present invention.
Embodiment
The diesel engine 10 that picture in picture is separated expression is installed on the vehicle, for example truck or bus, and it is provided with vent systems, and this vent systems comprises the gas exhaust manifold 11 that is connected to heat exchanger 12.Baffler with oxidation catalyst 13 and particulate filter 14 is connected to heat exchanger 12 by inlet pipe 15 on the one hand, is connected to heat exchanger 12 by outlet conduit 16 on the other hand.
First flow channel that passes heat exchanger 12 is vertical extent in the drawings, allows to flow to particulate filter 14 from the exhaust flow of enmgine exhaust 11 via inlet pipe 15.Second flow channel that passes heat exchanger 12 is horizontal-extending in the drawings, allows exhaust flow to flow to the discharge tube 17 of vent systems via outlet conduit 16 from particulate filter 14.
By using with the active regeneration process of oxygen as oxygenant, carbon soot particles will be removed from particulate filter automatically, thereby has reduced the demand of safeguarding and keeping in repair.Regenerative process will take place at reasonable time, for example when automobile running certain distance or when motor after having moved a period of time under certain load.
For the regenerative process of jihuokeli filter, the sparger of motor can be equipped with fuel is sprayed into device in the waste gas, and this is referred to as the back and sprays.Another kind method is that sparger of extra installation fuels injection in the waste gas in the vent systems of particulate filter upstream.
Under low-load, the exhaust gas temperature of discharging from motor through gas exhaust manifold 11 is about 200 degrees centigrade.When the active regeneration process began, owing to belong to the burning of hydrocarbon in the oxidation catalyst of this system, the temperature of the waste gas that flows out from silencing apparatus just began to improve.Little by little, the carbon-smoke combustion in the particulate filter begins, so local temperature can rise to more than 1000 degrees centigrade.At this moment, be not less than about 600 degree centigrade via outlet conduit 16 to the temperature of the air-flow of heat exchanger from silencing apparatus.This hot air flow is cooled through over-heat-exchanger 12 time, and this makes it when discharging automobile via discharge tube 17, and temperature is for example (effectiveness of heat exchanger is 50%) about 400 degrees centigrade.Simultaneously, be used to heat air-flow, so only need quite a spot of fuel start the active regeneration process from gas exhaust manifold from the heat energy of hot air flow.
The present invention should not be considered as not only being confined to the foregoing description.On the contrary, in the scope of Patent right requirement, can expect many further variations and modification.

Claims (3)

1. device that is used for regulating through the temperature of the waste gas of vehicle exhaust system (11-17), this vehicle has internal-combustion engine (10), this vent systems is provided with the active regeneration filter (14) that is used for collecting the exhaust flow particle, this device includes heat exchanger (12), this heat exchanger (12) has first flow channel and second flow channel, first flow channel is used for exhaust flow and flows to particulate filter (14) from the gas exhaust manifold (11) of motor, second flow channel is used for exhaust flow flows to vent systems from particulate filter (14) discharge tube (17), it is characterized in that, described particulate filter (14) is provided with oxidation catalyst (13), is used for the soot of intermittent burning accumulation.
2. device as claimed in claim 1 is characterized in that, the firing chamber of described motor (10) is provided with sparger, is used for fueling injection into waste gas.
3. device as claimed in claim 1 is characterized in that sparger is arranged in the upstream of vent systems particulate filter (14), is used for fueling injection into waste gas.
CNA2004800162848A 2003-06-18 2004-06-14 Apparatus for adjusting the temperature of exhaust gases Pending CN1806097A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0301799A SE525197C2 (en) 2003-06-18 2003-06-18 Apparatus for controlling the temperature of exhaust gases from an exhaust system equipped with an active regenerable filter
SE03017993 2003-06-18

Publications (1)

Publication Number Publication Date
CN1806097A true CN1806097A (en) 2006-07-19

Family

ID=27607364

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2004800162848A Pending CN1806097A (en) 2003-06-18 2004-06-14 Apparatus for adjusting the temperature of exhaust gases

Country Status (7)

Country Link
US (1) US20060196176A1 (en)
EP (1) EP1639238A1 (en)
JP (1) JP2006527819A (en)
CN (1) CN1806097A (en)
BR (1) BRPI0411647A (en)
SE (1) SE525197C2 (en)
WO (1) WO2004111399A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080083215A1 (en) * 2006-10-10 2008-04-10 Mi Yan Standalone thermal energy recycling device for engine after-treatment systems
EP2153036B1 (en) * 2007-05-03 2016-08-24 Mack Trucks, Inc. Exhaust aftertreatment system
US20090107117A1 (en) * 2007-10-30 2009-04-30 Ford Global Technologies, Llc Diesel Engine Aftertreatment Control Operation with Waste Heat Recovery
ES2481447T3 (en) * 2008-01-10 2014-07-30 Haldor Topsoe A/S Method and system for the purification of diesel engine exhaust gas
US9291079B2 (en) * 2008-04-05 2016-03-22 Mi Yan Engine aftertreatment system with exhaust lambda control
JP5022328B2 (en) * 2008-09-19 2012-09-12 三菱重工業株式会社 Diesel engine exhaust gas aftertreatment system
JP2012067756A (en) * 2011-12-06 2012-04-05 Mitsubishi Heavy Ind Ltd Exhaust gas after-treatment device of diesel engine
CN106582129A (en) * 2016-12-26 2017-04-26 江苏华强新能源科技有限公司 Static air filter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729861C2 (en) * 1987-09-05 1995-06-22 Deutsche Forsch Luft Raumfahrt Method for operating a soot filter device for a diesel engine and soot filter device for carrying out this method
JPH0724575Y2 (en) * 1989-12-12 1995-06-05 ニチアス株式会社 Exhaust gas purification device for internal combustion engine
DE4000062A1 (en) * 1990-01-03 1991-07-04 Hans Prof Dipl Ing Moeller Igniting soot particles on diesel filter - involves use of air warmed by exhaust gas heat exchanger
US5143700A (en) * 1990-10-15 1992-09-01 Anguil Environmental Systems, Inc. Ceramic filter construction for use in catalytic incineration system
DE4109227A1 (en) * 1991-03-21 1992-09-24 Schwaebische Huettenwerke Gmbh EXHAUST FILTER AND / OR CATALYST
DE4408826C1 (en) * 1994-03-16 1995-05-24 Mtu Friedrichshafen Gmbh Exhaust gas system with heat exchanger
US5687565A (en) * 1995-11-29 1997-11-18 Amoco Corporation Control of exhaust emissions from an internal combustion engine
US5979159A (en) * 1998-03-16 1999-11-09 Ford Global Technologies, Inc. Exhaust after-treatment system for automotive vehicle
US6935105B1 (en) * 1998-11-06 2005-08-30 Ceryx Asset Recovery Llc Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery
SE519240C2 (en) * 1998-11-20 2003-02-04 Volvo Personvagnar Ab Combustion engine arrangements included a heat exchanger to adjust the temperature of exhaust gases to pass a NOx adsorbing catalyst
WO2001042632A1 (en) * 1999-12-08 2001-06-14 Volkswagen Aktiengesellschaft Method for supplying exhaust gases from an internal combustion engine to a catalyst, in particular a storage catalyst
DE10048580A1 (en) * 2000-09-30 2002-04-11 Volkswagen Ag Exhaust system of an internal combustion engine with a catalyst

Also Published As

Publication number Publication date
JP2006527819A (en) 2006-12-07
WO2004111399A1 (en) 2004-12-23
EP1639238A1 (en) 2006-03-29
SE0301799L (en) 2004-12-19
US20060196176A1 (en) 2006-09-07
SE525197C2 (en) 2004-12-21
SE0301799D0 (en) 2003-06-18
BRPI0411647A (en) 2006-08-08

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication