EP1805408B1 - Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe - Google Patents

Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe Download PDF

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Publication number
EP1805408B1
EP1805408B1 EP05796953A EP05796953A EP1805408B1 EP 1805408 B1 EP1805408 B1 EP 1805408B1 EP 05796953 A EP05796953 A EP 05796953A EP 05796953 A EP05796953 A EP 05796953A EP 1805408 B1 EP1805408 B1 EP 1805408B1
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel pump
impeller
delivery chamber
pump according
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.)
Not-in-force
Application number
EP05796953A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1805408A1 (de
Inventor
Eberhard Geissel
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 EP1805408A1 publication Critical patent/EP1805408A1/de
Application granted granted Critical
Publication of EP1805408B1 publication Critical patent/EP1805408B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F02M37/025—Feeding by means of a liquid fuel-driven jet pump
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/048—Arrangements for driving regenerative pumps, i.e. side-channel pumps
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • 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
    • F04D5/005—Regenerative pumps of multistage type the stages being radially offset

Definitions

  • the invention relates to a fuel pump with a driven, a housing part opposite impeller, arranged in the impeller, concentrically enclosing wreaths of vane chambers bounding vanes, with the rings of the vanes in the housing part opposite, partially annular channels for conveying fuel, with the semi-annular Channels connected outlet channels, wherein the corrugations of the blade chambers and the part-annular channels form a radially inner delivery chamber and a radially outer delivery chamber. Furthermore, the invention relates to a fuel supply system for an internal combustion engine of a motor vehicle with such a fuel pump for the suction of fuel from a fuel tank and for conveying the fuel to the internal combustion engine.
  • Such fuel pumps are often used in fuel supply systems of today's motor vehicles and are known in practice (See, for example, the DE-A-101.38.838 ).
  • the delivery chambers of the fuel pump serve to fill a swirl pot and supply the internal combustion engine of the motor vehicle with fuel.
  • the impeller is usually mounted on a shaft of an electric motor and is driven in normal operation at a rated speed.
  • the rated speed is often not reliably achieved at low temperatures, particularly at the start of the internal combustion engine, since the electric motor is operated at a low voltage and therefore has only a low power output. This leads in particular in the radially inner delivery chamber to a strong reduction in the delivery rate of the fuel pump. In the worst case, the swirl pot is thus no longer filled and the promotion of the fuel to the internal combustion engine interrupted.
  • Another disadvantage of the known fuel supply system is that the impeller must be constantly driven at normal speed regardless of the fuel demand of the engine at the rated speed, so that the delivery rate of the radially inner delivery chamber does not decrease. As a result, the fuel pump has an unnecessarily high energy requirement for driving the impeller.
  • the invention is based on the problem to design a fuel pump of the type mentioned so that it ensures a sufficiently high flow rate of the inner delivery chamber even at a low speed of the impeller below the rated speed. Furthermore, a fuel supply system to be created with such a fuel pump, which ensures reliable delivery of the fuel at different speeds of the impeller.
  • the first problem is inventively achieved in that the radially outer delivery chamber is connected to the radially inner delivery chamber via a connecting channel.
  • the fuel pump according to the invention can operate with a correspondingly low fuel consumption of the internal combustion engine without risk of interruption of the delivery of the fuel at a speed below the rated speed.
  • the fuel pump according to the invention is structurally particularly simple if the connecting channel is arranged in the housing part and connects the part-annular channels.
  • connection channel can be produced by a structurally very simple change in the tool shape of the housing part.
  • connection channel points from the radially outer delivery chamber in the direction of rotation of the impeller to the radially inner delivery chamber. Since the pressure is usually greater in the radially outer delivery chamber than in the radially inner delivery chamber and also increases over the length, can be easily ensured by a suitable choice of the connection of the connection channel to the radially outer delivery chamber, which minimum pressure in the radially inner Delivery chamber is adjusted.
  • connection channel at rated speed influencing the flows in the delivery chambers through the connection channel at rated speed can be easily avoided if the connections of the connection channel to the radially inner and the radially outer delivery chamber are so placed that at a rated speed of the impeller Connections the same pressure prevails. Since the pressure in the radially inner delivery chamber drops particularly sharply when the rotational speed of the impeller is low, the pressure in the radially inner delivery chamber becomes exclusively below due to this configuration raised the rated speed through the connecting channel.
  • connection of the connecting channel to the outer delivery chamber requires according to another advantageous embodiment of the invention, a particularly low cost when a connected to the radially outer, part-annular channel starting portion of the connecting channel is inclined by an intended angle ⁇ to the guided through the axis of rotation of the impeller straight.
  • connection of the connecting channel to the inner delivery chamber requires according to another advantageous embodiment of the invention, a particularly low cost when an opening into the radially inner, partially annular channel end portion of the connecting channel is inclined by an intended angle ⁇ to the guided through the axis of rotation of the impeller straight.
  • Turbulence in the delivery chambers when overflowing the fuel can be kept particularly low according to another advantageous embodiment of the invention, when the angle ⁇ and / or the angle ⁇ is / 45 ° approximately.
  • the length of the connecting channel can be freely selected according to another advantageous development of the invention and thus easily set the minimum pressure in the inner delivery chamber, when the connecting channel has a concentrically arranged between the semi-annular channels, middle section.
  • An influence of the flow in the connecting channel by friction on the impeller can be kept particularly low according to another advantageous embodiment of the invention, when the impeller has a smooth surface in its region facing the connecting channel.
  • the connecting channel formed as a groove is deeper than wide.
  • the contact surface of the impeller is kept particularly low with the medium located in the connecting channel.
  • the second-mentioned problem namely the creation of a fuel supply system with such a fuel pump, in which a reliable delivery of the fuel is ensured at different speeds of the impeller is inventively achieved in that the radially outer delivery chamber with the internal combustion engine and the radially inner delivery chamber with an inside the fuel tank arranged suction jet pump is connected.
  • the fuel pump can be designed exclusively for the fuel requirement of the internal combustion engine, it being ensured by the connection channel of the fuel pump that the radially inner delivery chamber receives sufficient fuel.
  • the fuel supply system according to the invention in which the delivery chambers of the fuel pump are connected via a connecting channel, is particularly cost-effective. Thanks to the invention, the fuel supply system according to the invention has two connected via the connecting channel stages, one of which promotes exclusively the internal combustion engine and the other exclusively fuel within the fuel tank.
  • the fuel supply system has by a control device for controlling the power of an impeller driving electric motor in dependence on the Fuel consumption of the internal combustion engine a particularly low energy consumption.
  • FIG. 1 1 schematically shows a fuel supply system 1 for an internal combustion engine 2 of a motor vehicle with a delivery unit 4 arranged in a fuel tank 3.
  • the delivery unit 4 has a fuel pump 6 arranged in a swirl pot 5 with a pump stage 8 driven by an electric motor 7.
  • the electric motor 7 is supplied via a control device 9 with electric current. From the fuel pump 6 funded fuel passes through a flow line 10 to the internal combustion engine 2.
  • the flow line 10 and electrical lines 11 of the electric motor 7 are passed through a flange 12 inserted into the fuel tank 3.
  • the pump stage 8 is designed as a side channel pump and has a between two housing parts 13, 14 rotatably arranged impeller 15 and two delivery chambers 16, 17.
  • the impeller 15 is rotatably mounted on a shaft 18 of the electric motor 7 and has two concentrically enclosing wreaths vane chambers bounding vanes 19, 20.
  • the vane chambers form with oppositely arranged in the housing parts 13, 14, part-annular channels 21, 22, the delivery chambers 16, 17th
  • the radially inner delivery chamber 16 delivers fuel from the swirl pot 5 to a suction jet pump 23, while the radially outer delivery chamber 17 promotes fuel from the swirl pot 5 by the electric motor 7 in the flow line 10.
  • the suction jet pump 23 sucks fuel through a pre-filter 24 from the fuel tank 3 and promotes this in the swirl pot 5.
  • the delivery chambers 16, 17 respectively penetrate the impeller 15 and therefore have in each of the housing parts 13, 14 arranged, partially annular channels 21, 22 , In FIG. 1 For clarity, inlets 25, 26 and outlets 27, 28 of the delivery chambers 16, 17 are shown rotated in the housing parts 13, 14 in the plane of the drawing. In fact, the part-annular channels 21, 22 extend over an angular range of up to 340 °.
  • FIG. 2 shows one of the housing parts 14 of the pump stage 8 of the fuel pump 6 from FIG. 1 ,
  • the direction of rotation of the impeller 15 is indicated by an arrow.
  • FIG. 2 shows FIG. 2 in that the partially annular channels 21, 22 are connected to one another via a connecting channel 29.
  • the connecting channel 29 is formed as arranged in the housing part 14 groove which is deeper than wide.
  • the connecting channel 29 has an opening portion 30 connected to the outer part-annular channel 22 and an end portion 31 opening into the inner part-annular channel 21.
  • the start section 30 and the end section 31 are connected to one another via a central section 32 arranged parallel to the partially annular channels 21, 22.
  • the initial portion 30 is inclined by the angle ⁇ and the end portion 31 is inclined by the angle ⁇ to the guided through the axis of rotation of the impeller 15 straight.
  • the angles ⁇ and ⁇ are each 45 °.
  • the connecting channel 29 is connected to the part-annular channels 21, 22, that at terminals 33, 34 of the connecting channel 29 at the partially annular channels 21, 22nd at a rated speed of the impeller 15, the same pressure prevails.
  • a pressure equilibrium which prevents a flow of fuel.
  • the speed of the impeller 15 drops below the rated speed, the delivery pressures in the delivery chambers 16, 17 and thus the partially annular channels 21, 22 decrease.
  • the pressure drop is much more pronounced than in the radially outer
  • such a pressure drop would have the consequence that the ejector 23 would not be reliably supplied with fuel as a propellant.
  • connection channel 29 provides a remedy by diverting fuel from the radially outer delivery chamber 17 when the pressure in the radially inner delivery chamber 16 drops and maintaining the intended pressure in the radially inner delivery chamber 16.
  • the fuel supply system 1 enables the control of the power output of the electric motor 7 by the control device 9 after consumption of the internal combustion engine 2 to fuel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP05796953A 2004-10-28 2005-09-28 Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe Not-in-force EP1805408B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052439A DE102004052439A1 (de) 2004-10-28 2004-10-28 Kraftstoffpumpe und Kraftstoffversorgungsanlage für eine Brennkraftmaschine eines Kraftfahrzeuges mit einer Kraftstoffpumpe
PCT/EP2005/054884 WO2006045686A1 (de) 2004-10-28 2005-09-28 Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe

Publications (2)

Publication Number Publication Date
EP1805408A1 EP1805408A1 (de) 2007-07-11
EP1805408B1 true EP1805408B1 (de) 2008-06-18

Family

ID=35414519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05796953A Not-in-force EP1805408B1 (de) 2004-10-28 2005-09-28 Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe

Country Status (8)

Country Link
US (1) US7658180B2 (zh)
EP (1) EP1805408B1 (zh)
JP (1) JP4235665B2 (zh)
KR (1) KR100719646B1 (zh)
CN (1) CN100420845C (zh)
DE (2) DE102004052439A1 (zh)
ES (1) ES2308561T3 (zh)
WO (1) WO2006045686A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2016275B1 (en) 2006-05-01 2011-11-02 Continental Automotive Systems US, Inc. Fuel pump with inner channel priming
US7588017B2 (en) 2007-01-24 2009-09-15 Continental Automotive Systems Us, Inc. Low pressure jet by-pass system for fuel pump
JP4978247B2 (ja) * 2007-03-09 2012-07-18 株式会社デンソー 燃料ポンプ
DE102007038144A1 (de) * 2007-08-13 2009-02-19 Continental Automotive Gmbh Seitenkanalpumpe zur Förderung von Kraftstoff in einem Kraftfahrzeug
KR101283122B1 (ko) * 2007-12-17 2013-07-05 기아자동차주식회사 가스연료차량의 터빈형 연료펌프 모듈
EP2433009A1 (en) 2009-05-20 2012-03-28 Edwards Limited Side-channel compressor with symmetric rotor disc which pumps in parallel
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
CN103047184A (zh) * 2012-12-07 2013-04-17 芜湖市顺昌汽车配件有限公司 一种电动燃油泵
US9476370B2 (en) 2014-02-20 2016-10-25 Generac Power Systems, Inc. Single point engine control interface
KR102469955B1 (ko) * 2020-11-24 2022-11-25 (주)모토닉 터빈형 연료펌프
KR102499006B1 (ko) * 2020-12-18 2023-02-14 (주)모토닉 터빈형 연료펌프

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE69621868T2 (de) * 1995-03-31 2003-01-30 Bitron S.P.A., Nichelino Seitenkanalbrennstoffpumpe für Kraftfahrzeug
DE19622560A1 (de) 1996-06-05 1997-12-11 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
DE19725249C2 (de) * 1997-06-14 2002-05-02 Siemens Ag Förderpumpe
DE19748448C2 (de) * 1997-11-03 1999-12-09 Mannesmann Vdo Ag Peripheralpumpe
WO2000043664A1 (de) 1999-01-21 2000-07-27 Robert Bosch Gmbh Fördereinrichtung für kraftstoff
DE19946024A1 (de) 1999-01-21 2000-07-27 Bosch Gmbh Robert Fördereinrichtung für Kraftstoff
DE10055344A1 (de) * 1999-11-23 2001-05-31 Mannesmann Vdo Ag In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit
EP1103717B1 (de) 1999-11-23 2005-03-23 Siemens Aktiengesellschaft In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit
DE10006622A1 (de) 2000-02-15 2001-08-16 Bosch Gmbh Robert Kraftstoffversorgungseinrichtung für eine Brennkraftmaschine eines Kraftfahrzeugs
JP2002054520A (ja) * 2000-05-29 2002-02-20 Mitsuba Corp 燃料ポンプモジュール
DE10138838B4 (de) 2001-08-14 2006-01-26 Siemens Ag In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges anzuordnende Fördereinheit
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
DE10246694B4 (de) * 2002-10-07 2016-02-11 Continental Automotive Gmbh Seitenkanalpumpe
JP2004218571A (ja) * 2003-01-16 2004-08-05 Aisan Ind Co Ltd エンジンの燃料供給装置

Also Published As

Publication number Publication date
KR100719646B1 (ko) 2007-05-18
DE502005004477D1 (de) 2008-07-31
US20080080964A1 (en) 2008-04-03
CN1780978A (zh) 2006-05-31
WO2006045686A1 (de) 2006-05-04
DE102004052439A1 (de) 2006-05-04
CN100420845C (zh) 2008-09-24
ES2308561T3 (es) 2008-12-01
KR20060055531A (ko) 2006-05-23
US7658180B2 (en) 2010-02-09
JP4235665B2 (ja) 2009-03-11
JP2008518140A (ja) 2008-05-29
EP1805408A1 (de) 2007-07-11

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