EP3058229B1 - Pompe - Google Patents

Pompe Download PDF

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Publication number
EP3058229B1
EP3058229B1 EP14783638.1A EP14783638A EP3058229B1 EP 3058229 B1 EP3058229 B1 EP 3058229B1 EP 14783638 A EP14783638 A EP 14783638A EP 3058229 B1 EP3058229 B1 EP 3058229B1
Authority
EP
European Patent Office
Prior art keywords
pump
impeller
additive
electric motor
conveying direction
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.)
Active
Application number
EP14783638.1A
Other languages
German (de)
English (en)
Other versions
EP3058229A1 (fr
Inventor
Marc VÖLKER
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3058229A1 publication Critical patent/EP3058229A1/fr
Application granted granted Critical
Publication of EP3058229B1 publication Critical patent/EP3058229B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F04D5/003—Regenerative pumps of multistage type
    • F04D5/006—Regenerative pumps of multistage type the stages being axially offset

Definitions

  • the invention relates to a pump with a housing in which an electric motor is arranged to be driven by a shaft of the electric motor pumping stage.
  • Such pumps are known and are used in particular in motor vehicles for conveying additives, which are added to the fuel.
  • the admixed additives have the task of reducing nitrogen oxides in the exhaust gas of motor vehicles. Due to the resulting chemical reaction, these pumps are also referred to as SCR pumps.
  • the additive is supplied by the SCR pump from a container via a line to the fuel.
  • the line is emptied out of driving.
  • the emptying takes place by reversing the direction of rotation of the SCR pump so that the conveying direction of the SCR pump is directed from the line into the additive container.
  • Displacement pumps are used as the pump type because they can deliver both forward and reverse depending on the direction of rotation.
  • the disadvantage of positive displacement pumps is their complex and therefore expensive construction.
  • the US 3 336 876 A discloses a flow pump operable in two conveying directions in the form of a side and peripheral wheel pump.
  • the pump comprises two pump wheels arranged on a common shaft of a drive means, which together convey a fluid - gas or liquid - in a first conveying direction or, in a direction opposite to the first conveying direction, into a second conveying direction.
  • the invention has for its object to provide a cost-effective pump that can promote with little effort by reversing the direction of rotation in two directions.
  • peripheral and / or side channel stages pump stages of the flow pump type are used instead of positive displacement pumps. Due to their design, these are significantly less expensive than positive displacement pumps. It is deliberately accepted that the peripheral or side channel stages can only promote in one direction, so that a pumping stage is required for each conveying direction. With this arrangement, depending on the direction of rotation of the electric motor in each case one impeller promotes the promotion, while counteracting the other impeller due to its opposite arrangement of the promotion. Since the influence of the impeller acting in the conveying direction is always greater than the impeller counteracting the conveying direction, so a promotion in two directions, each with a pump stage of the flow pump type is possible.
  • the two wheels have a V-blading.
  • the angles of the V-blading of both wheels are different. In this way, the wheels can be adapted to their respective conveying task. A particularly good efficiency is achieved if the angle of the V-blading of the impeller conveying in the main conveying direction is greater than the angle of the V blading of the other impeller.
  • the pump according to the invention is particularly suitable as an SCR pump for conveying an additive, which is admixed to the fuel of a motor vehicle.
  • the invention will be described in more detail. It shows in the single figure a pump according to the invention as an SCR pump in a motor vehicle.
  • the pump 1 is arranged in an additive container 2, from which it sucks the additive via an inlet 3 in the main conveying direction, via the first pumping stage 4 and the second pumping stage 5, through the electric motor 6 to an outlet 7.
  • the outlet 7 is connected to a delivery line 8, via which the additive is added to the fuel 9.
  • the pump 1 outside of the additive container 2.
  • the suction of the additive then takes place via a suction line connected to the inlet 3, which is guided into the additive container 2.
  • the pump 1 has a housing in which the electric motor 6 is arranged with its shaft 10.
  • the shaft 10 is designed for the rotationally fixed entrainment of two wheels 11, 12, which are arranged in a pump housing 13.
  • the first impeller 11 forms with the associated pump chamber 14, the first pumping stage 4, while the second impeller 12, with the pump chamber 15, the second pumping stage 5 forms.
  • Both wheels 11, 12 are formed as side channel wheels.
  • the wheels 11, 12 each have on their sides a ring of blade chambers 16, 17 bounding blades 18, 19.
  • the blades 18, 19 are formed on the respective impeller as V-blading, the orientation of the V-blading of an impeller 11 opposite for V-blading of the other impeller 12 is.
  • the impeller 11 Upon rotation of the shaft 10 of the electric motor 3 in the main conveying direction, the impeller 11 rotates so that the additive is sucked in via the inlet 3 and is conveyed to an outlet 20 of the first pumping stage 4. From there, the additive flows via an inlet 21 of the second pumping stage 5 into the pumping chamber 15 with the second impeller 12. Its V-blading is the flow direction of the additive in the opposite direction. Via an outlet 22, the additive leaves the pump housing 13 after flowing through the second pump chamber 15.

Claims (4)

  1. Pompe comprenant un carter dans lequel est disposé un moteur électrique d'un étage de pompe pouvant être entraîné par un arbre du moteur électrique, un deuxième étage de pompe (5) pouvant être entraîné par l'arbre (10) étant disposé en série avec le premier étage de pompe (4), les deux étages de pompe (4, 5) étant réalisés sous forme d'étage de canal périphérique ou latéral et les rotors (11, 12) des deux étages de pompe (4, 5) étant disposés dans le sens opposé au sens de refoulement de l'autre étage de pompe respectif (5, 4), caractérisée en ce que les deux rotors (11, 12) possèdent un aubage en V, et en fonction du sens de rotation du moteur électrique, à chaque fois un rotor reprenant le refoulement tandis que l'autre rotor, sous l'effet de son agencement en sens inverse, s'opposant au refoulement.
  2. Pompe selon la revendication 1, caractérisée en ce que les angles (α, β) de l'aubage en V des deux rotors (11, 12) sont différents.
  3. Pompe selon la revendication 2, caractérisée en ce que l'angle (α) de l'aubage en V du rotor (11) refoulant dans la direction de refoulement principale est supérieur à l'angle (β) de l'aubage en V de l'autre rotor (12).
  4. Utilisation d'une pompe selon l'une quelconque des revendications 1 à 3, en tant que pompe SCR pour l'ajout d'un additif au carburant dans un véhicule automobile.
EP14783638.1A 2013-10-14 2014-10-13 Pompe Active EP3058229B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013220717.4A DE102013220717B4 (de) 2013-10-14 2013-10-14 Pumpe
PCT/EP2014/071844 WO2015055556A1 (fr) 2013-10-14 2014-10-13 Pompe

Publications (2)

Publication Number Publication Date
EP3058229A1 EP3058229A1 (fr) 2016-08-24
EP3058229B1 true EP3058229B1 (fr) 2018-06-27

Family

ID=51690392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14783638.1A Active EP3058229B1 (fr) 2013-10-14 2014-10-13 Pompe

Country Status (5)

Country Link
US (1) US10519957B2 (fr)
EP (1) EP3058229B1 (fr)
CN (1) CN105637222B (fr)
DE (1) DE102013220717B4 (fr)
WO (1) WO2015055556A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015208472A1 (de) * 2015-05-07 2016-11-10 Robert Bosch Gmbh Wassereinspritzvorrichtung einer Brennkraftmaschine
DE102017203609A1 (de) 2017-02-23 2018-08-23 Mahle International Gmbh Einrichtung zur Einspritzung von Wasser in eine Brennkraftmaschine
DE102018217181B4 (de) * 2018-10-08 2023-11-09 Vitesco Technologies GmbH Verwendung einer elektrisch angetriebenen Strömungspumpenstufe, einer Wasserfördereinheit, eines Wassereinspritzsystems, eines Verbrennungsmotors sowie eines Fahrzeugs

Family Cites Families (32)

* Cited by examiner, † Cited by third party
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DE431682C (de) * 1924-06-05 1926-07-20 Siemens Schuckertwerke G M B H Ventilator fuer umkehrbare Luftfoerderung
DE1177939B (de) * 1961-01-18 1964-09-10 Krantz H Fa Kreiselpumpe mit zwei Laufraedern gegensinniger Foerderrichtung
US3263909A (en) * 1964-07-30 1966-08-02 Black & Decker Mfg Co High-efficiency fan assembly for vacuum cleaner
DE1258738B (de) * 1964-10-07 1968-01-11 Siemen & Hinsch Gmbh Reversible Seitenkanalkreiselpumpe
US4296347A (en) 1979-09-28 1981-10-20 Texas Instruments Incorporated Surface acoustic wave sensor
US4396347A (en) * 1981-05-18 1983-08-02 Chang Kai Chih Energy saving pump and pumping system
US5009575A (en) * 1988-11-07 1991-04-23 Aisan Kogyo Kabushiki Kaisha Vapor lock preventing mechanism in motor-driven fuel pump
EP0467336B1 (fr) * 1990-07-18 1995-04-26 Fuji Electric Co., Ltd. Ventilateur axial bidirectionnel
US5129796A (en) * 1991-02-19 1992-07-14 General Motors Corporation Automotive fuel pump
US5642981A (en) * 1994-08-01 1997-07-01 Aisan Kogyo Kabushiki Kaisha Regenerative pump
DE19504079B4 (de) * 1995-02-08 2004-11-04 Robert Bosch Gmbh Strömungspumpe zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
JP3690075B2 (ja) * 1997-07-16 2005-08-31 富士電機システムズ株式会社 双方向型軸流送風機
US6113363A (en) * 1999-02-17 2000-09-05 Walbro Corporation Turbine fuel pump
DE10013908A1 (de) * 2000-03-21 2001-09-27 Mannesmann Vdo Ag Förderpumpe
DE10013907A1 (de) * 2000-03-21 2001-09-27 Mannesmann Vdo Ag Förderpumpe
DE10048695A1 (de) * 2000-09-30 2002-04-11 Leybold Vakuum Gmbh Pumpe als Seitenkanalpumpe
US7037066B2 (en) * 2002-06-18 2006-05-02 Ti Group Automotive Systems, L.L.C. Turbine fuel pump impeller
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
DE10227426C1 (de) * 2002-06-20 2003-07-31 Martin Ziegler Schaufelrad für kompakte Strömungsmaschinen
US6893206B2 (en) * 2003-05-07 2005-05-17 Ti Group Automotive Systems, L.L.C. Multi-stage fuel pump
DE10341837B3 (de) * 2003-09-09 2005-03-10 Siemens Ag Kraftstoffpumpe für einen Kraftstoffbehälter
DE10348008A1 (de) * 2003-10-15 2005-05-19 Siemens Ag Kraftstoffpumpe
US20050163627A1 (en) * 2004-01-28 2005-07-28 Morris R. D. Automotive fuel pump improvement
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CN200949554Y (zh) * 2006-09-19 2007-09-19 四川省宜宾五粮液集团有限公司 摩托车电喷系统旋转泵
JP4293217B2 (ja) * 2006-09-22 2009-07-08 パナソニック電工株式会社 ポンプおよび流体供給装置
US20100163215A1 (en) * 2008-12-30 2010-07-01 Caterpillar Inc. Dual volute electric pump, cooling system and pump assembly method
DE102010004379A1 (de) 2009-12-16 2011-06-22 Continental Automotive GmbH, 30165 Kraftstoffpumpe
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CN202789686U (zh) * 2012-08-23 2013-03-13 银皓汽配有限公司 流体动力式电动燃油泵

Also Published As

Publication number Publication date
DE102013220717A1 (de) 2015-04-16
DE102013220717B4 (de) 2016-04-07
CN105637222B (zh) 2018-09-21
US10519957B2 (en) 2019-12-31
CN105637222A (zh) 2016-06-01
EP3058229A1 (fr) 2016-08-24
WO2015055556A1 (fr) 2015-04-23
US20160230766A1 (en) 2016-08-11

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