DE20119512U1 - Reducing agent supply unit - Google Patents

Reducing agent supply unit

Info

Publication number
DE20119512U1
DE20119512U1 DE20119512U DE20119512U DE20119512U1 DE 20119512 U1 DE20119512 U1 DE 20119512U1 DE 20119512 U DE20119512 U DE 20119512U DE 20119512 U DE20119512 U DE 20119512U DE 20119512 U1 DE20119512 U1 DE 20119512U1
Authority
DE
Germany
Prior art keywords
reducing agent
supply unit
agent supply
unit according
pump
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.)
Expired - Lifetime
Application number
DE20119512U
Other languages
German (de)
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.)
Robert Bosch GmbH
Original Assignee
Purem Abgassysteme GmbH and Co KG
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 Purem Abgassysteme GmbH and Co KG filed Critical Purem Abgassysteme GmbH and Co KG
Priority to DE20119512U priority Critical patent/DE20119512U1/en
Publication of DE20119512U1 publication Critical patent/DE20119512U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1466—Means for venting air out of conduits or tanks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (8)

1. Reduktionsmittelversorgungseinheit für eine Reduktionsmitteldo­ siereinrichtung zum Zuführen eines Reduktionsmittels in den Ab­ gasstrang der Brennkraftmaschine eines Kraftfahrzeuges, welche Reduktionsmittelversorgungseinheit (1) einen Reduktionsmitteltank (2) zum Bevorraten des flüssigen Reduktionsmittels sowie eine Pumpeneinheit (10) zum Fördern des flüssigen Reduktionsmittels umfaßt und ausgangsseitig an eine die Reduktionsmittelversor­ gungseinheit (1) mit einem Dosierventil verbindende Versorgungs­ leitung (7) verbunden ist, dadurch gekennzeichnet, daß die Pum­ peneinheit (10) einen Pumpenmotor (9) umfaßt, durch den die ein­ gesetzten Pumpmittel (11) zum Fördern des flüssigen Reduktions­ mittels antreibbar sind, wobei der Pumpenmotor (9) und die Pumpmittel (11) oberhalb des maximalen Füllstandes (4) des Re­ duktionsmitteltanks (2) angeordnet sind, und daß der Pumpenein­ heit (10) ferner ein bis in den Bereich des Tiefsten des Redukti­ onsmitteltanks (2) reichendes Saugrohr (12) sowie eine Belüf­ tungseinrichtung (15) zum selbsttätigen Belüften der Pumpmittel (11) nach einem Betrieb derselben zugeordnet sind.1. Reducing agent supply unit for a reducing agent dosing device for supplying a reducing agent into the gas line of the internal combustion engine of a motor vehicle, which reducing agent supply unit ( 1 ) comprises a reducing agent tank ( 2 ) for storing the liquid reducing agent and a pump unit ( 10 ) for conveying the liquid reducing agent and on the output side a supply line ( 7 ) connecting the reducing agent supply unit ( 1 ) is connected to a metering valve, characterized in that the pump unit ( 10 ) comprises a pump motor ( 9 ) through which a pumping means ( 11 ) is used to convey the liquid reduction are drivable by means of which the pump motor ( 9 ) and the pumping means ( 11 ) are arranged above the maximum fill level ( 4 ) of the re duction agent tank ( 2 ), and in that the pumping unit ( 10 ) furthermore extends to the deepest range of the reducti onsmitteltanks ( 2 ) reaching suction pipe ( 12 ) and a ventilation device ( 15 ) for automatically ventilating the pumping means ( 11 ) after operation of the same. 2. Reduktionsmittelversorgungseinheit nach Anspruch 1, dadurch gekennzeichnet, daß der Pumpenmotor (9) außerhalb des Reduk­ tionsmitteltanks (2) und die Pumpmittel (11) innerhalb des Redukti­ onsmitteltanks (2) angeordnet sind.2. reducing agent supply unit according to claim 1, characterized in that the pump motor ( 9 ) outside of the Reduk tion medium tanks ( 2 ) and the pumping means ( 11 ) are arranged onsmittelanks within the Redukti ( 2 ). 3. Reduktionsmittelversorgungseinheit nach Anspruch 2, dadurch gekennzeichnet, daß der Pumpenmotor (9) an der Außenseite und die Pumpmittel (11) an der Innenseite eines zum Verschließen des Reduktionsmitteltanks (2) vorgesehenen Deckels (5) angeordnet sind.3. Reducing agent supply unit according to claim 2, characterized in that the pump motor ( 9 ) on the outside and the pumping means ( 11 ) on the inside of a cover ( 5 ) provided for closing the reducing agent tank ( 2 ) are arranged. 4. Reduktionsmittelversorgungseinheit nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das in das flüssige Redukti­ onsmittel reichende Saugrohr (12) beheizt ist. 4. Reducing agent supply unit according to one of claims 1 to 3, characterized in that the suction tube ( 12 ) reaching into the liquid reducing agent is heated. 5. Reduktionsmittelversorgungseinheit nach Anspruch 4, dadurch gekennzeichnet, daß zum Beheizen des Saugrohres (12) dieses in wärmeleitender Verbindung mit einer sich von der Brennkraftma­ schine zum Kraftstofftank erstreckenden Kraftstoffrücklaufleitung (19) steht.5. reducing agent supply unit according to claim 4, characterized in that for heating the suction pipe ( 12 ) this is in heat-conducting connection with an extending from the internal combustion engine to the fuel tank fuel return line ( 19 ). 6. Reduktionsmittelversorgungseinheit nach einem der Ansprüche 1- 5, dadurch gekennzeichnet, daß zur Selbstbelüftung der Pump­ mittel (11) die Versorgungsleitung (14) eine den Pumpmitteln (11) nachgeschaltete und noch innerhalb des Reduktionsmitteltanks (2) befindliche Drosselöffnung (15) aufweist.6. Reducing agent supply unit according to one of claims 1- 5, characterized in that for self-ventilation of the pump means ( 11 ), the supply line ( 14 ) has a pump means ( 11 ) downstream and still within the reducing agent tank ( 2 ) throttle opening ( 15 ). 7. Reduktionsmittelversorgungseinheit nach einem der Ansprüche 1- 6, dadurch gekennzeichnet, daß zur Druckregelung innerhalb der Versorgungsleitung (7, 14) ein dem Pumpmittel (11) nachgeschal­ tetes und sich noch innerhalb des Reduktionsmitteltanks (2) befind­ liches Druckregelventil (16) vorgesehen ist.7. reducing agent supply unit according to any one of claims 1- 6, characterized in that for the pressure control within the supply line ( 7 , 14 ) a pump means ( 11 ) downstream and still within the reducing agent tank ( 2 ) is Lich pressure control valve ( 16 ) is provided , 8. Reduktionsmittelversorgungseinheit nach Anspruch 5 und 6, da­ durch gekennzeichnet, daß das Druckregelventil (16) benachbart zu der Drosselöffnung (15) angeordnet ist und der Ausgang des Druckregelventils (16) auf den Ausgang der Drosselöffnung (15) gerichtet ist.8. reducing agent supply unit according to claim 5 and 6, characterized in that the pressure control valve ( 16 ) is arranged adjacent to the throttle opening ( 15 ) and the output of the pressure control valve ( 16 ) is directed to the output of the throttle opening ( 15 ).
DE20119512U 2001-12-03 2001-12-03 Reducing agent supply unit Expired - Lifetime DE20119512U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20119512U DE20119512U1 (en) 2001-12-03 2001-12-03 Reducing agent supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20119512U DE20119512U1 (en) 2001-12-03 2001-12-03 Reducing agent supply unit

Publications (1)

Publication Number Publication Date
DE20119512U1 true DE20119512U1 (en) 2002-02-28

Family

ID=7964654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20119512U Expired - Lifetime DE20119512U1 (en) 2001-12-03 2001-12-03 Reducing agent supply unit

Country Status (1)

Country Link
DE (1) DE20119512U1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731882A1 (en) * 2004-03-29 2006-12-13 Nissan Diesel Motor Co., Ltd. Structure for reducing agent container
EP1757781A1 (en) * 2004-05-13 2007-02-28 Nissan Diesel Motor Co., Ltd. Structure of container for reducing agent
EP1925354A1 (en) 2006-10-27 2008-05-28 Robert Bosch Gmbh Catalytic reduction device
EP2013051A1 (en) * 2006-04-27 2009-01-14 Volvo Lastvagnar AB A liquid receptacle for a vehicle
WO2009077067A1 (en) * 2007-12-19 2009-06-25 Dbk David + Baader Gmbh Tank removal system
FR2939481A1 (en) * 2008-12-04 2010-06-11 Ti Automotive Fuel Systems Sas Fluid i.e. urea, supplying device for exhaust line of motor vehicle, has air intake connected to supply line via auxiliary line equipped with unidirectional check valve in series for permitting purging of device
DE102010052600A1 (en) * 2010-11-25 2012-05-31 Daimler Ag Pump arrangement for conveying reducing agent solution for exhaust after treatment, has conveying chamber and drive chamber, in which electric motor is arranged for moving drive element
CN102713181A (en) * 2010-01-13 2012-10-03 排放技术有限公司 Tank assembly and metering system for a reducing agent
DE102012020948A1 (en) * 2012-10-25 2014-04-30 Kautex Textron Gmbh & Co. Kg Device for storing and conveying a liquid additive, in particular for the catalytic exhaust gas nitification on a motor vehicle
RU2542193C2 (en) * 2010-01-13 2015-02-20 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Device with reservoir and supply device for reducing agent

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731882A4 (en) * 2004-03-29 2013-03-06 Nissan Diesel Motor Co Structure for reducing agent container
EP1731882A1 (en) * 2004-03-29 2006-12-13 Nissan Diesel Motor Co., Ltd. Structure for reducing agent container
EP1757781A1 (en) * 2004-05-13 2007-02-28 Nissan Diesel Motor Co., Ltd. Structure of container for reducing agent
EP1757781A4 (en) * 2004-05-13 2010-10-20 Nissan Diesel Motor Co Structure of container for reducing agent
EP2013051A1 (en) * 2006-04-27 2009-01-14 Volvo Lastvagnar AB A liquid receptacle for a vehicle
EP2013051A4 (en) * 2006-04-27 2011-03-23 Volvo Lastvagnar Ab A liquid receptacle for a vehicle
EP1925354A1 (en) 2006-10-27 2008-05-28 Robert Bosch Gmbh Catalytic reduction device
WO2009077067A1 (en) * 2007-12-19 2009-06-25 Dbk David + Baader Gmbh Tank removal system
FR2939481A1 (en) * 2008-12-04 2010-06-11 Ti Automotive Fuel Systems Sas Fluid i.e. urea, supplying device for exhaust line of motor vehicle, has air intake connected to supply line via auxiliary line equipped with unidirectional check valve in series for permitting purging of device
CN102713181B (en) * 2010-01-13 2015-02-04 排放技术有限公司 Tank assembly and metering system for a reducing agent
CN102713181A (en) * 2010-01-13 2012-10-03 排放技术有限公司 Tank assembly and metering system for a reducing agent
RU2540343C2 (en) * 2010-01-13 2015-02-10 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Tank device and dosing system of reducing agent
RU2542193C2 (en) * 2010-01-13 2015-02-20 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Device with reservoir and supply device for reducing agent
DE102010052600A1 (en) * 2010-11-25 2012-05-31 Daimler Ag Pump arrangement for conveying reducing agent solution for exhaust after treatment, has conveying chamber and drive chamber, in which electric motor is arranged for moving drive element
DE102012020948A1 (en) * 2012-10-25 2014-04-30 Kautex Textron Gmbh & Co. Kg Device for storing and conveying a liquid additive, in particular for the catalytic exhaust gas nitification on a motor vehicle
DE102012020948B4 (en) 2012-10-25 2017-02-16 Kautex Textron Gmbh & Co. Kg Device for storing and conveying a liquid additive, in particular for the catalytic exhaust gas nitification on a motor vehicle
US9925493B2 (en) 2012-10-25 2018-03-27 Kautex Textron Gmbh & Co. Kg Device for storing and delivering a liquid additive, in particular for catalytic exhaust gas NOx removal in a motor vehicle

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020404

R163 Identified publications notified

Effective date: 20020215

R081 Change of applicant/patentee

Owner name: ROBERT BOSCH GMBH, DE

Free format text: FORMER OWNER: PUREM ABGASSYSTEME GMBH & CO. KG, 58706 MENDEN, DE

Effective date: 20041228

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20050125

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20080121

R081 Change of applicant/patentee

Owner name: ROBERT BOSCH GMBH, DE

Free format text: FORMER OWNER: PUREM ABGASSYSTEME GMBH & CO. KG, 59423 UNNA, DE

Effective date: 20080908

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20100210

R081 Change of applicant/patentee

Owner name: ROBERT BOSCH GMBH, DE

Free format text: FORMER OWNER: EBERSPAECHER UNNA GMBH & CO. KG, 59423 UNNA, DE

Effective date: 20101214

R071 Expiry of right
R071 Expiry of right