DE102004011123A1 - Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines - Google Patents
Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines Download PDFInfo
- Publication number
- DE102004011123A1 DE102004011123A1 DE102004011123A DE102004011123A DE102004011123A1 DE 102004011123 A1 DE102004011123 A1 DE 102004011123A1 DE 102004011123 A DE102004011123 A DE 102004011123A DE 102004011123 A DE102004011123 A DE 102004011123A DE 102004011123 A1 DE102004011123 A1 DE 102004011123A1
- Authority
- DE
- Germany
- Prior art keywords
- pump according
- pump
- piston
- membrane
- medium
- 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.)
- Withdrawn
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]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
- F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
-
- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Die Pumpe hat ein Pumpengehäuse, in dem ein Pumpelement untergebracht ist, mit dem das Medium aus einem Vorratsbehälter zum Auslaß gefördert wird. DOLLAR A Damit das Abgasnachbehandlungsmedium einwandfrei und unter den bei Dieselfahrzeugen auftretenden Bedingungen zuverlässig gefördert werden kann, ist das Pumpelement ein Kolben, der gegen eine Gegenkraft verschiebbar und durch eine Membran vom Medium getrennt ist. Dadurch ist der Kolben korrosionsbeständig, da er nicht mit dem Medium in Berührung kommt. Die Membran dichtet den Kolben ab, so daß eine Wellenabdichtung im medienberührten Bereich nicht notwendig ist. DOLLAR A Die Pumpe wird bei Abgasnachbehandlungseinrichtungen für Dieselmotoren eingesetzt.The pump has a pump housing in which a pumping element is housed, with which the medium is conveyed from a reservoir to the outlet. DOLLAR A In order for the exhaust aftertreatment medium can be reliably promoted properly and under the conditions occurring in diesel vehicles, the pumping element is a piston which is displaceable against a counterforce and separated by a membrane from the medium. As a result, the piston is corrosion resistant because it does not come into contact with the medium. The membrane seals the piston, so that a shaft seal in the wetted area is not necessary. DOLLAR A The pump is used in exhaust aftertreatment devices for diesel engines.
Description
Die Erfindung betrifft eine Pumpe zur Förderung eines Abgasnachbehandlungsmediums, insbesondere einer Harnstoff-Wasser-Lösung, für Dieselmotoren nach dem Oberbegriff des Anspruches 1.The The invention relates to a pump for conveying an exhaust gas aftertreatment medium, in particular a urea-water solution, for diesel engines according to the preamble of claim 1.
Es sind Reinigungseinrichtungen in Dieselfahrzeugen bekannt, mit denen die Abgase der Dieselmotoren mit einem Medium, vorzugsweise einer 32,5 %-igen Harnstoff-Wasser-Lösung, behandelt werden, um die Stickoxide im Abgas zu reduzieren bzw. vollständig zu entfernen. Zur Förderung des Mediums ist eine Pumpe vorgesehen, die das Medium aus einem Vorratsbehälter fördert.It Cleaning devices are known in diesel vehicles, with which the exhaust gases of diesel engines with a medium, preferably a 32.5 % urea-water solution, be treated in order to reduce the nitrogen oxides in the exhaust gas or Completely to remove. To promote of the medium, a pump is provided, which is the medium of a reservoir promotes.
Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Pumpe so auszubilden, daß mit ihr das Abgasnachbehandlungsmedium einwandfrei und unter den bei Dieselfahrzeugen auftretenden Bedingungen zuverlässig gefördert werden kann.Of the Invention is the object of the generic pump train so that with her the exhaust aftertreatment medium perfectly and under those in diesel vehicles reliable conditions promoted can be.
Diese Aufgabe wird bei der gattungsgemäßen Pumpe erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.These Task is in the generic pump according to the invention with the characterizing features of claim 1 solved.
Bei der erfindungsgemäßen Pumpe wird das Pumpelement durch einen Kolben gebildet, der beim Pumpvorgang gegen eine Gegenkraft verschiebbar ist. Gegenüber dem zu pumpenden Medium ist der Kolben durch die Membran getrennt. Mit der erfindungsgemäßen Pumpe lassen sich ausreichend hohe Drücke erreichen. Da der Kolben gegen das Medium durch die Membran getrennt ist, ist er korrosionsbeständig, da er nicht mit dem Medium in Berührung kommt. Die Membran dichtet den Kolben ab, so daß eine Wellenabdichtung im medienberührten Bereich nicht notwendig ist. Die Pumpe zeichnet sich durch einen einfachen Aufbau und eine lange Lebensdauer aus.at the pump according to the invention the pumping element is formed by a piston during the pumping process is displaceable against a counterforce. Opposite the medium to be pumped the piston is separated by the membrane. Leave with the pump according to the invention sufficiently high pressures to reach. Because the piston is separated against the medium through the membrane is, it is corrosion resistant, because he does not come in contact with the medium. The membrane seals the piston off, so that a Shaft seal in the wetted area is not necessary. The pump is characterized by a simple Construction and a long life out.
Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung.Further Features of the invention will become apparent from the other claims, the Description and the drawing.
Die Erfindung wird anhand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher erläutert. Es zeigenThe The invention will be described with reference to two embodiments shown in the drawings explained in more detail. It demonstrate
Die Pumpe ist vorteilhaft für den Einsatz von Abgasnachbehandlungseinrichtungen für Dieselmotoren geeignet. Sie kann selbstverständlich auch für andere Pumpaufgaben eingesetzt werden.The Pump is beneficial for the use of exhaust aftertreatment devices for diesel engines suitable. She can of course also for others Pumping tasks are used.
Die
Pumpe hat ein Gehäuse
Im
Gleitlager
Der
Kolben
An
das Gehäuse
Im
Pumpenkopf befinden sich mit Abstand voneinander zwei Rückschlagventile
An
der der Bohrung
Im
Aufnahmeraum
Die
Druckfeder
Die
Bohrungen
In
der Stellung gemäß
Anschließend wird
die Bestromung der Magnetspule
Die
Höhe des
Pumpendruckes ist abhängig von
der Federstärke
der Druckfeder
Vorteilhaft
ist die der Membran
Die
Pumpe bildet die Kombination aus einer Schwingkolbenpumpe und einer
Membranpumpe. Der Schwingkolbenteil mit dem Kolben
Mit
der Pumpe lassen sich Drücke
erreichen, beispielsweise in der Größenordnung von etwa 5 bar. Die
Pumpe ist gegen wässerige
Lösungen
korrosionsbeständig,
da der Schwingkolbenteil durch die Membran
Die
Pumpe gemäß den
Wird
die Spule
Die
Funktion der Pumpe ist im übrigen
gleich wie bei der Ausführungsform
nach den
Claims (27)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011123A DE102004011123A1 (en) | 2003-09-02 | 2004-03-08 | Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines |
US10/570,165 US20070020123A1 (en) | 2003-09-02 | 2004-08-19 | Pump for conveying an exhaust gas aftertreatment medium particularly a urea-water solution, for diesel engines |
PCT/DE2004/001848 WO2005024232A1 (en) | 2003-09-02 | 2004-08-19 | Pump for conveying an exhaust gas aftertreatment medium, particularly a urea-water solution, for diesel engines |
JP2006525611A JP2007504396A (en) | 2003-09-02 | 2004-08-19 | Pump for conveying exhaust gas aftertreatment media for diesel engines, especially aqueous urea solutions |
EP04762689A EP1660774A1 (en) | 2003-09-02 | 2004-08-19 | Pump for conveying an exhaust gas aftertreatment medium, particularly a urea-water solution, for diesel engines |
DE112004002131T DE112004002131D2 (en) | 2003-09-02 | 2004-08-19 | Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341995.0 | 2003-09-02 | ||
DE10341995 | 2003-09-02 | ||
DE102004011123A DE102004011123A1 (en) | 2003-09-02 | 2004-03-08 | Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004011123A1 true DE102004011123A1 (en) | 2005-03-31 |
Family
ID=34223549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004011123A Withdrawn DE102004011123A1 (en) | 2003-09-02 | 2004-03-08 | Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1846059A (en) |
DE (1) | DE102004011123A1 (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006044252B3 (en) * | 2006-09-16 | 2008-02-28 | Thomas Magnete Gmbh | Diaphragm pump for delivery and dosing fluid, particularly fluid medium, has delivery chamber filled with fluid medium, where membrane is separated and mounted between delivery chamber and pressure chamber with piston operated chamber |
DE102006044253B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Membrane, for a hydraulic membrane pump for diesel exhaust cleaning, has a recess to define the exact delivery dose volume |
DE102006044254B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Membrane pump for supplying and metering out a liquid substance has a supply chamber, a pressurized chamber, a membrane, a plunger operating chamber and a hydraulic membrane driving mechanism |
DE102006044255B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Diaphragm pump e.g. for delivering and metering liquid medium, has compartment which can be filled with liquid medium, pressure compartment in which delivery piston and drive piston are accommodated |
DE102006044248B3 (en) * | 2006-09-16 | 2008-04-03 | Thomas Magnete Gmbh | Diaphragm pump i.e. hydraulic driven diaphragm pump, for delivering and metering liquid medium, has piston abutting against bottom surface during movement of piston inside compartment so that piston reaches lower dead point |
DE102007059237B3 (en) * | 2007-12-07 | 2009-02-05 | Thomas Magnete Gmbh | Piston-membrane pump for use as dosing pump in selective catalytic reduction exhaust gas cleaning system in diesel motor vehicle, has auxiliary membrane forming part of wall of drive area that is formed in pump housing |
DE102006044246B4 (en) * | 2006-09-16 | 2009-05-28 | Thomas Magnete Gmbh | aftertreatment system |
DE102007059240A1 (en) * | 2007-12-07 | 2009-06-10 | Thomas Magnete Gmbh | Diaphragm pump for use as e.g. dosing pump in selective catalytic reduction exhaust gas cleaning system for diesel motor vehicle, has pump head enclosed between front sides of housing, so that head is held on housing |
DE102007059239A1 (en) | 2007-12-07 | 2009-06-10 | Thomas Magnete Gmbh | Diaphragm, and reciprocating diaphragm pump |
WO2009153085A1 (en) * | 2008-06-17 | 2009-12-23 | Robert Bosch Gmbh | Dosing system for a liquid medium, particularly a urea-water solution |
DE102008055610A1 (en) * | 2008-11-03 | 2010-05-06 | Thomas Magnete Gmbh | Reciprocating piston pump for supplying liquid, has electromagnets with actuator, where actuator has anchor piston and piston rod |
FR2942511A1 (en) * | 2009-02-23 | 2010-08-27 | Coutier Moulage Gen Ind | DEVICE FOR INJECTING AN ADDITIVE PRODUCT IN THE EXHAUST SYSTEM OF A MOTOR VEHICLE. |
DE102011015110B3 (en) * | 2011-03-19 | 2012-01-26 | Ebm-Papst St. Georgen Gmbh & Co. Kg | dosing |
WO2012019869A1 (en) * | 2010-08-09 | 2012-02-16 | Robert Bosch Gmbh | Injection device |
DE102011003461A1 (en) | 2011-02-01 | 2012-08-02 | Robert Bosch Gmbh | Diaphragm pump and exhaust aftertreatment system with a diaphragm pump |
DE102011010644A1 (en) * | 2011-02-09 | 2012-08-09 | Emitec France S.A.S | Feed unit for a reducing agent |
DE202011051879U1 (en) | 2011-11-07 | 2013-02-08 | Hofer Mechatronik Gmbh | bellows |
EP2589807A1 (en) | 2011-11-07 | 2013-05-08 | hofer mechatronik GmbH | Folding bellows pump |
WO2013178307A1 (en) * | 2012-06-02 | 2013-12-05 | Hydac Electronic Gmbh | System for exhaust gas treatment for internal combustion engines |
WO2014124955A1 (en) * | 2013-02-18 | 2014-08-21 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method for heating a delivery device |
DE102013101720B4 (en) * | 2013-02-21 | 2015-02-12 | Bernd Giegerich | Protective element to prevent frost damage |
DE102017104400A1 (en) | 2017-03-02 | 2018-09-06 | Qonqave Gmbh | Pump device for conveying at least one conveying means |
WO2019057646A1 (en) * | 2017-09-19 | 2019-03-28 | L'orange Gmbh | Pump |
FR3076855A1 (en) * | 2018-01-16 | 2019-07-19 | Continental Automotive France | SELECTIVE CATALYTIC REDUCTION DEVICE |
DE102019135153A1 (en) * | 2019-12-19 | 2021-06-24 | Prominent Gmbh | Dosing pump with dosing diaphragm |
US11939124B2 (en) | 2018-07-05 | 2024-03-26 | Bericap Gmbh & Co. Kg | Screw closure with controlled seal |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9255512B2 (en) * | 2011-08-22 | 2016-02-09 | Cummins Emission Solutions, Inc. | Urea injection systems wash cycles |
CN103291590B (en) * | 2013-06-13 | 2015-06-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Double-diaphragm pump |
DE102014218594A1 (en) * | 2014-09-16 | 2016-03-17 | Robert Bosch Gmbh | Piston pump with an area with a non-magnetic material in the magnetic circuit |
DE102014225412A1 (en) | 2014-12-10 | 2016-06-16 | Robert Bosch Gmbh | Piston pump with a piston with profiled piston front |
CN106150620B (en) * | 2015-04-01 | 2020-04-14 | 天纳克(苏州)排放系统有限公司 | Urea injection assembly |
CN106224213B (en) * | 2016-09-30 | 2018-11-13 | 罗凯缤 | A kind of exhaust gas from diesel vehicle post-processing SCR system adds blue pump diaphragm piece and sealing structure |
CN108131268B (en) * | 2018-02-06 | 2024-03-15 | 西北农林科技大学 | Breathing pump |
-
2004
- 2004-03-08 DE DE102004011123A patent/DE102004011123A1/en not_active Withdrawn
- 2004-08-19 CN CNA2004800252399A patent/CN1846059A/en active Pending
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006044246B4 (en) * | 2006-09-16 | 2009-05-28 | Thomas Magnete Gmbh | aftertreatment system |
DE102006044253B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Membrane, for a hydraulic membrane pump for diesel exhaust cleaning, has a recess to define the exact delivery dose volume |
DE102006044254B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Membrane pump for supplying and metering out a liquid substance has a supply chamber, a pressurized chamber, a membrane, a plunger operating chamber and a hydraulic membrane driving mechanism |
DE102006044255B3 (en) * | 2006-09-16 | 2008-03-27 | Thomas Magnete Gmbh | Diaphragm pump e.g. for delivering and metering liquid medium, has compartment which can be filled with liquid medium, pressure compartment in which delivery piston and drive piston are accommodated |
DE102006044248B3 (en) * | 2006-09-16 | 2008-04-03 | Thomas Magnete Gmbh | Diaphragm pump i.e. hydraulic driven diaphragm pump, for delivering and metering liquid medium, has piston abutting against bottom surface during movement of piston inside compartment so that piston reaches lower dead point |
DE102006044252B3 (en) * | 2006-09-16 | 2008-02-28 | Thomas Magnete Gmbh | Diaphragm pump for delivery and dosing fluid, particularly fluid medium, has delivery chamber filled with fluid medium, where membrane is separated and mounted between delivery chamber and pressure chamber with piston operated chamber |
DE102007059239A1 (en) | 2007-12-07 | 2009-06-10 | Thomas Magnete Gmbh | Diaphragm, and reciprocating diaphragm pump |
DE102007059240A1 (en) * | 2007-12-07 | 2009-06-10 | Thomas Magnete Gmbh | Diaphragm pump for use as e.g. dosing pump in selective catalytic reduction exhaust gas cleaning system for diesel motor vehicle, has pump head enclosed between front sides of housing, so that head is held on housing |
DE102007059237B3 (en) * | 2007-12-07 | 2009-02-05 | Thomas Magnete Gmbh | Piston-membrane pump for use as dosing pump in selective catalytic reduction exhaust gas cleaning system in diesel motor vehicle, has auxiliary membrane forming part of wall of drive area that is formed in pump housing |
WO2009153085A1 (en) * | 2008-06-17 | 2009-12-23 | Robert Bosch Gmbh | Dosing system for a liquid medium, particularly a urea-water solution |
DE102008055610A1 (en) * | 2008-11-03 | 2010-05-06 | Thomas Magnete Gmbh | Reciprocating piston pump for supplying liquid, has electromagnets with actuator, where actuator has anchor piston and piston rod |
FR2942511A1 (en) * | 2009-02-23 | 2010-08-27 | Coutier Moulage Gen Ind | DEVICE FOR INJECTING AN ADDITIVE PRODUCT IN THE EXHAUST SYSTEM OF A MOTOR VEHICLE. |
WO2012019869A1 (en) * | 2010-08-09 | 2012-02-16 | Robert Bosch Gmbh | Injection device |
US9261090B2 (en) | 2011-02-01 | 2016-02-16 | Robert Bosch Gmbh | Diaphragm pump, and exhaust-gas aftertreatment system having a diaphragm pump |
DE102011003461A1 (en) | 2011-02-01 | 2012-08-02 | Robert Bosch Gmbh | Diaphragm pump and exhaust aftertreatment system with a diaphragm pump |
WO2012104001A1 (en) | 2011-02-01 | 2012-08-09 | Robert Bosch Gmbh | Diaphragm pump, and exhaust-gas aftertreatment system having a diaphragm pump |
DE102011010644A1 (en) * | 2011-02-09 | 2012-08-09 | Emitec France S.A.S | Feed unit for a reducing agent |
EP2673482A1 (en) * | 2011-02-09 | 2013-12-18 | Emitec Gesellschaft für Emissionstechnologie mbH | Conveying unit for a reducing agent |
US9732742B2 (en) | 2011-02-09 | 2017-08-15 | EMITEC Geselllschaft fuer Emissionstechnologie mbH | Conveying unit for a reducing agent |
US9453507B2 (en) | 2011-03-19 | 2016-09-27 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Metering system |
DE102011015110B3 (en) * | 2011-03-19 | 2012-01-26 | Ebm-Papst St. Georgen Gmbh & Co. Kg | dosing |
EP2589807A1 (en) | 2011-11-07 | 2013-05-08 | hofer mechatronik GmbH | Folding bellows pump |
DE202011051879U1 (en) | 2011-11-07 | 2013-02-08 | Hofer Mechatronik Gmbh | bellows |
WO2013178307A1 (en) * | 2012-06-02 | 2013-12-05 | Hydac Electronic Gmbh | System for exhaust gas treatment for internal combustion engines |
US9399941B2 (en) | 2012-06-02 | 2016-07-26 | Hydac Electronic Gmbh | System for exhaust gas treatment for internal combustion engines |
WO2014124955A1 (en) * | 2013-02-18 | 2014-08-21 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method for heating a delivery device |
DE102013101720B4 (en) * | 2013-02-21 | 2015-02-12 | Bernd Giegerich | Protective element to prevent frost damage |
DE102017104400A1 (en) | 2017-03-02 | 2018-09-06 | Qonqave Gmbh | Pump device for conveying at least one conveying means |
WO2018158423A1 (en) | 2017-03-02 | 2018-09-07 | Qonqave Gmbh | Pump device for delivery of at least one delivery means |
US11293426B2 (en) | 2017-03-02 | 2022-04-05 | Qonqave Gmbh | Pump device for delivery of at least one delivery means |
WO2019057646A1 (en) * | 2017-09-19 | 2019-03-28 | L'orange Gmbh | Pump |
FR3076855A1 (en) * | 2018-01-16 | 2019-07-19 | Continental Automotive France | SELECTIVE CATALYTIC REDUCTION DEVICE |
US11939124B2 (en) | 2018-07-05 | 2024-03-26 | Bericap Gmbh & Co. Kg | Screw closure with controlled seal |
DE102019135153A1 (en) * | 2019-12-19 | 2021-06-24 | Prominent Gmbh | Dosing pump with dosing diaphragm |
US11898549B2 (en) | 2019-12-19 | 2024-02-13 | Prominent Gmbh | Dosing pump with dosing diaphragm |
Also Published As
Publication number | Publication date |
---|---|
CN1846059A (en) | 2006-10-11 |
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