WO2005024232A1 - Pumpe zur forderung eines abgasnachbehandlungsmediums, insbesondere einer harnstoff-wasser-losung, für dieselmotoren - Google Patents
Pumpe zur forderung eines abgasnachbehandlungsmediums, insbesondere einer harnstoff-wasser-losung, für dieselmotoren Download PDFInfo
- Publication number
- WO2005024232A1 WO2005024232A1 PCT/DE2004/001848 DE2004001848W WO2005024232A1 WO 2005024232 A1 WO2005024232 A1 WO 2005024232A1 DE 2004001848 W DE2004001848 W DE 2004001848W WO 2005024232 A1 WO2005024232 A1 WO 2005024232A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- pump according
- piston
- membrane
- medium
- Prior art date
Links
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000003042 antagnostic effect Effects 0.000 abstract 1
- 238000009877 rendering Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- 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
- F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
-
- 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
- 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
- F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor
-
- 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
- F04B43/04—Pumps having electric drive
Definitions
- 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.
- a pump is provided to convey the medium, which conveys the medium from a storage container.
- the invention has for its object to design the generic pump so that with it the exhaust gas aftertreatment medium can be pumped reliably and reliably under the conditions occurring in diesel vehicles.
- the pump element is formed by a piston which is displaceable against a counterforce during the pumping process.
- the piston is separated from the medium to be pumped by the membrane. With the pump according to the invention sufficiently high pressures can be achieved. Since the piston is separated from the medium by the membrane, it is corrosion-resistant since it does not come into contact with the medium.
- the membrane seals the piston so that a shaft seal in the area in contact with the medium is not necessary.
- the pump is characterized by a simple structure and a long service life.
- FIG. 3 shows a second embodiment of a pump according to the invention in a representation corresponding to FIG. 2,
- Fig. 4 shows the detail Z in Fig. 3 in an enlarged view.
- the pump is advantageously suitable for the use of exhaust gas aftertreatment devices for diesel engines. It can of course also be used for other pumping tasks.
- the pump has a housing 1 which is provided with a cylindrical extension 2 on one end face. At least one magnetic coil 3 is embedded in the housing 1.
- the housing 1 has a central axial receiving space 4, on the inner wall of which a sleeve-shaped ges slide bearing 5 is present. It rests with its one end on a radially inwardly directed annular shoulder surface 6 which projects from the inner wall 7 of the receiving space 4.
- the slide bearing 5 there is a cup-shaped piston 8, which is axially movable against the force of at least one compression spring 9.
- One end of the compression spring 9 is supported on a bottom 10 of the piston 8 and the other end on the underside of an adjusting screw 11 which is screwed into the neck 2. With the adjusting screw 11, the biasing force of the compression spring 9 can be adjusted continuously.
- the adjusting screw 11 is provided on its underside with a central projection 12 which projects into the corresponding end of the compression spring 9.
- the piston 8 is provided at its end facing the adjusting screw 11 with a radially outwardly directed flange 13 which, in one position (FIG. 2) of the piston 8, bears against a radially outwardly directed shoulder surface 14 in the inner wall 7 of the receiving space 4 ,
- the adjusting screw 11 has an annular wall 15 on its circumference, on the inner wall of which the flange 13 of the piston 8 is guided.
- a pump head 16 is connected, preferably screwed, to the housing 1 on the end face opposite the adjusting screw 11.
- the pump head 16 has a housing 17 with a radially outwardly directed flange 18, with which the pump head 16 lies flat and sealed against the end face of the housing 1.
- the head of the fastening screws 19 is advantageously recessed in the flange 18.
- Two non-return valves 20, 21 are located in the pump head at a distance from one another, each of which is accommodated in a receptacle 22, 23 of the pump head 16.
- the valve body 24 is loaded by at least one compression spring 25 in the direction of its closed position shown in FIG. 1, in which it has a bore 26 in the pump head 16 closes.
- the axially parallel bore 26 connects the receiving space 22 with a pump space 27 which is closed by a membrane 28.
- the pump chamber 27 is essentially formed by an end-side depression in the pump head 16.
- the membrane 28 has a reinforced peripheral edge 29 which is clamped between the housing 1 and the flange 18 of the pump head 16.
- the membrane 28 has on its side facing the piston 8 a central extension 30 which penetrates a central bore 31 of the bottom 10 of the piston 8.
- At the free end of the extension 30 there is a thickening 32 which is used to axially secure the membrane 28 with respect to the piston 8.
- the thickening 32 lies on the inside of the piston crown 10 and is designed such that the membrane 28 is captively connected to the piston 8.
- a bore 33 opens into the receiving space 22 and is provided in a connecting plate 34. It is fastened in a sealed manner on the end face of the pump head 16 facing away from the housing 1.
- valve body 35 which is of the same design as the valve body 24, but is arranged in the receiving space 23 rotated by 180 ° relative to it is.
- a bore 36 is closed, which is provided parallel to the bore 33 in the connecting plate 34.
- the valve body 35 is loaded by at least one compression spring 37 in the receiving space 23 in the direction of its closed position (FIG. 2).
- the outer diameter of the valve body 35 is smaller than the diameter of the receiving space 23.
- a bore 38 which is provided in the pump head 16 and is parallel to the bore 26, opens into the receiving space 23. The bore 38 connects the pump chamber 27 to the receiving chamber 23.
- the compression spring 25 of the check valve 20 is supported at one end on the connecting plate 34 and at the other end on the valve body 24.
- the compression spring 37 is supported at one end on the bottom of the receiving space 23 and at the other end on the valve body 35.
- connection plate 34 facing away from the pump head 16 and through which the medium to be delivered is sucked in or discharged.
- the solenoid 3 is energized so that the piston 8 is displaced against the force of the compression spring 9 until the piston 13 abuts the adjusting screw 11 with its flange 13 (FIG. 1).
- the membrane 28 is carried along because it is axially fixed to the piston 8, whereby it generates a negative pressure in the bores 26, 38.
- the valve body 24, supported by the force of the compression spring 25, reaches its closed position, in which it closes the bore 26.
- the valve body 35 is lifted off the connecting plate 34 under the suction force against the force of the compression spring 37. This can over the connection 40 and the bore 36 get the medium into the receiving space 23.
- the sucked medium flows past the valve body 35 via the bore 38 into the pump chamber 27.
- the level of the pump pressure depends on the spring strength of the compression spring 9 with which the piston 8 is actuated. With the adjusting screw 11, the pump pressure can be finely adjusted after assembly.
- the end face 41 of the piston crown 10 facing the membrane 28 is advantageously curved (FIG. 1) in such a way that the membrane 28 bears flat against the end face 41 in the deflected position according to FIG. 2 (FIG. 2). In this way, the membrane 28 is optimally supported and accordingly wears little.
- the pump forms the combination of a vibrating piston pump and a diaphragm pump.
- the oscillating piston part with the piston 8 serves as a maintenance-free drive, while the membrane 28 forms the pump element.
- the material of the membrane 28 can be optimally adapted to the medium to be pumped.
- the piston 8 does not come into contact with this medium and can therefore be made from a correspondingly inexpensive material.
- Pressures can be achieved with the pump, for example in the order of magnitude of about 5 bar.
- the pump is corrosion-resistant to aqueous solutions, since the oscillating piston part is sealed against the medium by the membrane 28. A shaft seal is not provided in the diaphragm pump part, so that problems associated therewith do not occur.
- the pump described is freeze-proof since the pump piston 8 is in the position of smallest pump dead volume 27 in the idle state (de-energized magnet, FIG. 2). When the medium freezes, the resulting additional volume can be absorbed by the piston 8 receding against the spring 9.
- the pump can be easily heated via the excitation coil 3, so that independent thawing of the medium is also possible after freezing.
- the pump works maintenance-free at least over the life of the vehicle in which it is installed.
- the pump according to FIGS. 3 and 4 differs from the previously described embodiment essentially in that instead of the piston spring 9 there is provided a plate spring 9 'integrated in the membrane 28, which is tightly enclosed by the membrane.
- the fastening part 42 and the extension 30 are advantageously formed in one piece with one another.
- the membrane 28 is preferably made of thermoplastic or vulcanized elastomer.
- Fig. 3 shows the piston 8 in a position corresponding to Fig. 2 of the previous embodiment.
- the coil 3 is not energized and the piston 8 is displaced so far under the force of the plate spring 9 'that its flange 13 abuts the shoulder surface 14 of the pump housing 1.
- the membrane 28 lies flat against the curved end face 41 of the piston crown 10.
- the function of the pump is otherwise the same as in the embodiment according to FIGS. 1 and 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Reciprocating Pumps (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
EP04762689A EP1660774A1 (de) | 2003-09-02 | 2004-08-19 | Pumpe zur forderung eines abgasnachbehandlungsmediums, insbesondere einer harnstoff-wasser-losung, f r dieselmoto-ren |
JP2006525611A JP2007504396A (ja) | 2003-09-02 | 2004-08-19 | ディーゼルエンジンのための排ガス後処理媒体、特に尿素水溶液を搬送するためのポンプ |
DE112004002131T DE112004002131D2 (de) | 2003-09-02 | 2004-08-19 | Pumpe zur Förderung eines Abgasnachbehandlungsmediums, insbesondere einer Harnstoff-Wasser-Lösung, für Dieselmotoren |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341995.0 | 2003-09-02 | ||
DE10341995 | 2003-09-02 | ||
DE102004011123A DE102004011123A1 (de) | 2003-09-02 | 2004-03-08 | Pumpe zur Förderung eines Abgasnachbehandlungsmediums, insbesondere einer Harnstoff-Wasser-Lösung, für Dieselmotoren |
DE102004011123.5 | 2004-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005024232A1 true WO2005024232A1 (de) | 2005-03-17 |
Family
ID=34276550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001848 WO2005024232A1 (de) | 2003-09-02 | 2004-08-19 | Pumpe zur forderung eines abgasnachbehandlungsmediums, insbesondere einer harnstoff-wasser-losung, für dieselmotoren |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070020123A1 (de) |
EP (1) | EP1660774A1 (de) |
JP (1) | JP2007504396A (de) |
DE (1) | DE112004002131D2 (de) |
WO (1) | WO2005024232A1 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006102884A1 (de) * | 2005-04-01 | 2006-10-05 | Webasto Ag | Hubkolbenbrennstoffpumpe und verfahren zum starten und betreiben einer kraftfahrzeugheizung |
WO2009071069A1 (de) * | 2007-12-07 | 2009-06-11 | Thomas Magnete Gmbh | Hubkolben-membranpumpe |
EP2131020A2 (de) | 2008-06-06 | 2009-12-09 | Delphi Technologies, Inc. | Verfahren zur Dosierung des Reagens |
DE102008054689A1 (de) | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Fluidfördereinrichtung |
DE102008054686A1 (de) | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Fluidfördereinrichtung |
DE102009002148A1 (de) | 2009-04-02 | 2010-10-14 | Robert Bosch Gmbh | Fluidfördereinrichtung |
EP2617996A1 (de) * | 2012-01-17 | 2013-07-24 | Knf Flodos Ag | Verdrängerpumpe |
WO2014079610A1 (de) * | 2012-11-23 | 2014-05-30 | Robert Bosch Gmbh | Vorrichtung zum einspritzen von fluiden, insbesondere pumpe-düse-system |
US9266709B2 (en) | 2009-11-20 | 2016-02-23 | Jack R. BRAMMELL | Systems and methods for on-site mixing and dispensing of a reducing agent solution for use with a diesel catalytic converter |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080138211A1 (en) * | 2004-04-12 | 2008-06-12 | Gorman-Rupp Company | Pump and valve system |
JP4483952B2 (ja) * | 2008-01-29 | 2010-06-16 | 株式会社デンソー | モータ付ポンプ |
DE102008002467A1 (de) * | 2008-06-17 | 2009-12-24 | Robert Bosch Gmbh | Dosiersystem für ein flüssiges Medium, insbesondere Harnstoff-Wasser-Lösung |
DE102008055609B4 (de) * | 2008-11-03 | 2011-12-29 | Thomas Magnete Gmbh | Hubkolbenpumpe |
CH702437A1 (fr) * | 2009-12-23 | 2011-06-30 | Jean-Denis Rochat | Pompe volumetrique alternative a membrane pour usage medical. |
DE102010042944A1 (de) * | 2010-10-26 | 2012-04-26 | Robert Bosch Gmbh | Arbeitswandelement einer Fluidfördereinrichtung |
JP5419019B2 (ja) | 2010-10-28 | 2014-02-19 | Smc株式会社 | ソレノイドポンプ |
DE102011010644A1 (de) | 2011-02-09 | 2012-08-09 | Emitec France S.A.S | Fördereinheit für ein Reduktionsmittel |
DE102011015110B3 (de) | 2011-03-19 | 2012-01-26 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Dosiersystem |
DE102013101573A1 (de) * | 2013-02-18 | 2014-08-21 | Emitec France S.A.S | Verfahren zum Beheizen einer Fördervorrichtung |
DE102014218594A1 (de) * | 2014-09-16 | 2016-03-17 | Robert Bosch Gmbh | Kolbenpumpe mit einem Bereich mit einem nichtmagnetischem Material im magnetischen Kreis |
DE102014225412A1 (de) * | 2014-12-10 | 2016-06-16 | Robert Bosch Gmbh | Kolbenpumpe mit einem Kolben mit profilierter Kolbenvorderseite |
DE102017104400A1 (de) | 2017-03-02 | 2018-09-06 | Qonqave Gmbh | Pumpenvorrichtung zu einer Förderung zumindest eines Fördermittels |
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DE4308837C1 (de) * | 1993-03-19 | 1994-09-29 | Eckerle Ind Elektronik Gmbh | Verfahren und Schaltungsanordnung zur elektrischen Steuerung der Leistung einer Schwingkolbenpumpe |
DE10129592A1 (de) * | 2000-08-02 | 2002-02-21 | Ford Global Tech Inc | Bord-Reduktionsmittel-Abgabeanordnung |
WO2003027454A1 (de) * | 2001-09-25 | 2003-04-03 | Argillon Gmbh | Reduktionsmittelpumpe für eine abgasnachbehandlungsanlage einer brennkraftmaschine |
DE10150518C1 (de) * | 2001-10-12 | 2003-05-08 | Siemens Ag | Verfahren und Vorrichtung zur Abgasnachbehandlung bei einer Brennkraftmaschine |
Family Cites Families (6)
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US2724398A (en) * | 1950-03-14 | 1955-11-22 | Honeywell Regulator Co | Proportional speed floating controller |
DD67037A1 (de) * | 1968-07-12 | 1969-05-20 | Max Grille | Membran aus elastischem material fuer pumpen und verdichter |
DE19631287B4 (de) * | 1996-08-02 | 2004-01-15 | Robert Bosch Gmbh | Kraftstoffpumpvorrichtung für Zweitaktmotoren mit einer zusätzlichen Antriebseinheit |
DE19819408A1 (de) * | 1998-04-30 | 1999-11-11 | Freudenberg Carl Fa | Membranpumpe zur Förderung von gasförmigen oder flüssigen Medien |
US6343539B1 (en) * | 1999-11-10 | 2002-02-05 | Benjamin R. Du | Multiple layer pump diaphragm |
US6826906B2 (en) * | 2000-08-15 | 2004-12-07 | Engelhard Corporation | Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines |
-
2004
- 2004-08-19 US US10/570,165 patent/US20070020123A1/en not_active Abandoned
- 2004-08-19 EP EP04762689A patent/EP1660774A1/de not_active Withdrawn
- 2004-08-19 DE DE112004002131T patent/DE112004002131D2/de not_active Expired - Fee Related
- 2004-08-19 WO PCT/DE2004/001848 patent/WO2005024232A1/de active Application Filing
- 2004-08-19 JP JP2006525611A patent/JP2007504396A/ja active Pending
Patent Citations (4)
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DE4308837C1 (de) * | 1993-03-19 | 1994-09-29 | Eckerle Ind Elektronik Gmbh | Verfahren und Schaltungsanordnung zur elektrischen Steuerung der Leistung einer Schwingkolbenpumpe |
DE10129592A1 (de) * | 2000-08-02 | 2002-02-21 | Ford Global Tech Inc | Bord-Reduktionsmittel-Abgabeanordnung |
WO2003027454A1 (de) * | 2001-09-25 | 2003-04-03 | Argillon Gmbh | Reduktionsmittelpumpe für eine abgasnachbehandlungsanlage einer brennkraftmaschine |
DE10150518C1 (de) * | 2001-10-12 | 2003-05-08 | Siemens Ag | Verfahren und Vorrichtung zur Abgasnachbehandlung bei einer Brennkraftmaschine |
Non-Patent Citations (1)
Title |
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See also references of EP1660774A1 * |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006102884A1 (de) * | 2005-04-01 | 2006-10-05 | Webasto Ag | Hubkolbenbrennstoffpumpe und verfahren zum starten und betreiben einer kraftfahrzeugheizung |
WO2009071069A1 (de) * | 2007-12-07 | 2009-06-11 | Thomas Magnete Gmbh | Hubkolben-membranpumpe |
US8899021B2 (en) | 2008-06-06 | 2014-12-02 | Delphi International Operations Luxembourg S.A.R.L. | Reagent dosing system and method of dosing reagent |
EP2131020A2 (de) | 2008-06-06 | 2009-12-09 | Delphi Technologies, Inc. | Verfahren zur Dosierung des Reagens |
US10107164B2 (en) | 2008-06-06 | 2018-10-23 | Delphi Technologies Ip Limited | Reagent dosing system and method of dosing reagent |
US9279351B2 (en) | 2008-06-06 | 2016-03-08 | Delphi International Operations Luxembourg S.A.R.L. | Reagent dosing system and method of dosing reagent |
EP2295748A1 (de) | 2008-06-06 | 2011-03-16 | Delphi Technologies Holding S.à.r.l. | Verfahren zur Dosierung der Reagenz |
EP2295747A1 (de) | 2008-06-06 | 2011-03-16 | Delphi Technologies Holding S.à.r.l. | Verfahren zur Dosierung der Reagenz |
EP2360359A2 (de) | 2008-06-06 | 2011-08-24 | Delphi Technologies Holding S.à.r.l. | Verfahren zur Dosierung des Reagens |
DE102008054689A1 (de) | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Fluidfördereinrichtung |
DE102008054686A1 (de) | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Fluidfördereinrichtung |
US8826646B2 (en) | 2009-04-02 | 2014-09-09 | Robert Bosch Gmbh | Fluid delivery device |
DE102009002148A1 (de) | 2009-04-02 | 2010-10-14 | Robert Bosch Gmbh | Fluidfördereinrichtung |
US9266709B2 (en) | 2009-11-20 | 2016-02-23 | Jack R. BRAMMELL | Systems and methods for on-site mixing and dispensing of a reducing agent solution for use with a diesel catalytic converter |
EP2617996A1 (de) * | 2012-01-17 | 2013-07-24 | Knf Flodos Ag | Verdrängerpumpe |
WO2014079610A1 (de) * | 2012-11-23 | 2014-05-30 | Robert Bosch Gmbh | Vorrichtung zum einspritzen von fluiden, insbesondere pumpe-düse-system |
Also Published As
Publication number | Publication date |
---|---|
DE112004002131D2 (de) | 2006-07-13 |
US20070020123A1 (en) | 2007-01-25 |
JP2007504396A (ja) | 2007-03-01 |
EP1660774A1 (de) | 2006-05-31 |
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