US20020172601A1 - Suction jet pump and method for producing a nozzle for a suction jet pump - Google Patents

Suction jet pump and method for producing a nozzle for a suction jet pump Download PDF

Info

Publication number
US20020172601A1
US20020172601A1 US10/126,968 US12696802A US2002172601A1 US 20020172601 A1 US20020172601 A1 US 20020172601A1 US 12696802 A US12696802 A US 12696802A US 2002172601 A1 US2002172601 A1 US 2002172601A1
Authority
US
United States
Prior art keywords
nozzle
jet pump
suction jet
insert
duct
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.)
Abandoned
Application number
US10/126,968
Other languages
English (en)
Inventor
Klaus-Jurgen Lienig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20020172601A1 publication Critical patent/US20020172601A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0469—Other heavy metals
    • F05C2201/0475—Copper or alloys thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to a suction jet pump, and in particular, a suction jet pump provided for the conveyance of fuel in a fuel tank, with a nozzle which is arranged upstream of a mixing tube and is capable of being connected to a propellant line and which has a nozzle duct.
  • the invention relates, furthermore, to a method for producing a nozzle for a suction jet pump.
  • Suction jet pumps are often used in fuel tanks of present-day motor vehicles in order to convey fuel out of one chamber of the fuel tank into another chamber or in order to fill a baffle.
  • the nozzle of these suction jet pump is typically manufactured from a plastic POM in one piece together with a casing.
  • An injection mold is used for producing the nozzle.
  • the nozzle duct is made by a core of the injection mold during the production of the nozzle by the injection-molding method.
  • the suction jet pump has the disadvantage that the nozzle duct possesses a very large diameter of usually 0.5 mm.
  • the suction jet pump consequently has a very high consumption of propellant. This leads to a high energy consumption of a feed pump supplying the suction jet pump with propellant.
  • a reduction in the diameter of the nozzle duct is usually not possible because of the very large casing dimensions in relation to the nozzle duct. This is because, for stability reasons, the diameter of the core should not fall short of a diameter of approximately 0.5 mm. With this diameter of the nozzle duct, the suction jet pump has a propellant consumption of 25 liters per hour.
  • the nozzle duct It is not possible for the nozzle duct to be made by subsequent drilling of the nozzle manufactured without a core by the injection-molding method, since the plastic may fray, resulting in a high frictional loss during the subsequent through-flow of propellant.
  • a further problem which prevents the nozzle duct from being reduced arises in suction jet pumps, the nozzle casing of which is closed by means of an end cap on the side facing away from the nozzle duct. The two parts are welded to one another in order to achieve a leak-tight closure. Impurities occur during the welding process and may settle in the nozzle duct.
  • the problem on which the invention is based is to design a suction jet pump of the type initially mentioned, in such a way that it has a particularly low consumption of propellant.
  • a method is to be provided for the manufacture of a nozzle for a suction jet pump having a particularly low consumption of propellant.
  • the nozzle has a nozzle insert as a separate component.
  • the size of the component receiving the nozzle duct is reduced, so that, to produce the nozzle insert as an injection molded part, smaller dies can be employed which make it possible to use cores with a substantially smaller diameter.
  • nozzle ducts of, for example, 0.3 mm can be produced with a high degree of process control by the injection-molding method.
  • These nozzle inserts can therefore be manufactured particularly cost-effectively from POM.
  • the nozzle insert is manufactured from metal.
  • the nozzle duct can be produced from metal, with a particularly small diameter in the insert, by various manufacturing methods.
  • nozzle ducts with a diameter of 0.3 mm can be produced even in metal at a low outlay.
  • the suction jet pump according to the invention with a diameter of the nozzle duct of 0.3 mm, has a propellant consumption of approximately 10 liters per hour.
  • the suction jet pump according to the invention consequently has a particularly low consumption of propellant.
  • the suction jet pump according to the invention has particularly low energy consumption.
  • a further advantage of this design is that a cavitation in the region of the nozzle duct can be largely prevented by a suitable selection of a plastic or of a metal for the nozzle insert.
  • the suction jet pump according to the invention therefore has a uniformly high conveying capacity.
  • the nozzle can be manufactured particularly cost-effectively when the metal of the nozzle insert is brass.
  • the manufacture of the suction jet pump according to the invention for various fields of use in different intended pump capacities becomes particularly simple when the nozzle has a nozzle casing with a connection for the propellant line and the nozzle casing is designed for holding the nozzle insert.
  • the nozzle insert can thereby be assembled together with standard nozzle casings for intended fields of use of the suction jet pump.
  • the nozzle casing can now be made in one part, since the nozzle insert is now an element which closes the nozzle casing. There is therefore no need for an end cap to be welded onto the nozzle casing.
  • the fastening of the nozzle insert to the nozzle casing becomes particularly simple when the nozzle insert has a bowl-shaped design and engages over an edge of the nozzle casing.
  • the nozzle insert is produced from plastic, preferably POM, by the injection-molding method, the nozzle duct being made during injection molding.
  • the nozzle duct is worked into the latter.
  • nozzle ducts with a particularly small diameter can be made in the nozzle insert in a simple way when the nozzle duct is worked in by means of a laser beam.
  • the manufacture of the nozzle duct in a nozzle insert made of metal requires particularly low outlay in terms of a manufacturing plant when the nozzle duct is worked into the nozzle insert by means of a drilling tool.
  • the erosion method may be envisaged as a further advantageous embodiment.
  • the manufacture of the nozzle becomes particularly cost-effective when the nozzle insert and the nozzle casing are pressed together with one another or are snapped together by means of latching elements.
  • FIG. 1 shows a diagrammatic illustration of a suction jet pump according to the invention.
  • FIG. 2 shows a section illustration of the nozzle of the section jet pump according to the invention from FIG. 1 before assembly.
  • FIG. 1 shows diagrammatically a suction jet pump with a nozzle 1 and with a mixing tube 2 .
  • the nozzle 1 has a connection 3 for a propellant line, not illustrated.
  • the mixing tube 2 has a mixing region 4 , in which propellant conveyed through the nozzle 1 and liquid sucked in from the region between the nozzle 1 and the mixing tube 2 are mixed. The liquid subsequently passes, together with the propellant, into a diffuser 5 .
  • the mixing tube 2 is illustrated as being cut away. Furthermore, flows of the propellant and of sucked-in liquid are marked by arrows.
  • Such a suction jet pump is suitable, in particular, for the conveyance of fuel within a fuel tank, not illustrated, of a motor vehicle.
  • FIG. 2 shows a sectional illustration of the nozzle 1 before its assembly.
  • the nozzle 1 has a nozzle casing 6 and a nozzle insert 7 .
  • the nozzle casing 6 is, in this example, manufactured from plastic by the injection-molding method, while the nozzle insert 7 consists of POM.
  • a nozzle duct 8 is arranged in the nozzle insert 7 .
  • the nozzle duct 8 was made by means of a core in the injection-molding die.
  • the nozzle casing 6 has a projecting edge 9 , over which the nozzle insert 7 engages in the assembled state.
  • the nozzle casing 6 and the nozzle insert 7 are connected to one another by being pressed together.
  • the nozzle insert 7 has a projection 10 .
  • the projection 10 penetrates into a groove 11 arranged in the edge 9 of the nozzle casing 6 .
  • the nozzle insert 7 and the nozzle casing 6 can thereby be reliably connected to one another.
  • a latching hook 12 Arranged on the nozzle casing 6 is a latching hook 12 , by means of which the suction jet pump can be snapped together with adjacent components.
  • the mixing tube 2 illustrated in FIG. 1, and the nozzle casing 6 can be manufactured jointly from the plastic POM and, for example, can be adhesively bonded or welded to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US10/126,968 2001-04-21 2002-04-22 Suction jet pump and method for producing a nozzle for a suction jet pump Abandoned US20020172601A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10119553.2 2001-04-21
DE10119553A DE10119553B4 (de) 2001-04-21 2001-04-21 Saugstrahlpumpe und Verfahren zur Herstellung einer Düse für eine Saugstrahlpumpe

Publications (1)

Publication Number Publication Date
US20020172601A1 true US20020172601A1 (en) 2002-11-21

Family

ID=7682190

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/126,968 Abandoned US20020172601A1 (en) 2001-04-21 2002-04-22 Suction jet pump and method for producing a nozzle for a suction jet pump

Country Status (7)

Country Link
US (1) US20020172601A1 (pt)
EP (1) EP1381778B1 (pt)
JP (1) JP4188700B2 (pt)
CN (1) CN1313734C (pt)
BR (1) BR0209025B1 (pt)
DE (2) DE10119553B4 (pt)
WO (1) WO2002086323A2 (pt)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080273993A1 (en) * 2005-09-28 2008-11-06 Klaus Markefka Ejector Tube of an Ejector Pump
US20090013971A1 (en) * 2006-01-24 2009-01-15 Karl Eck Feed unit
US7901191B1 (en) 2005-04-07 2011-03-08 Parker Hannifan Corporation Enclosure with fluid inducement chamber
US20160102683A1 (en) * 2014-10-13 2016-04-14 Denso Corporation Jet pump, manufacturing method of jet pump, and fuel supply device having jet pump
US10982575B2 (en) 2016-04-19 2021-04-20 Elringklinger Ag Ejector device and combination of a cylinder head cover and an ejector device
US11280353B2 (en) * 2016-07-14 2022-03-22 Vitesco Technologies GmbH Suction jet pump with sealing of the injection mold installation opening by a metal ball fixed with plastic deformation

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119553B4 (de) * 2001-04-21 2005-06-23 Siemens Ag Saugstrahlpumpe und Verfahren zur Herstellung einer Düse für eine Saugstrahlpumpe
DE10329265A1 (de) * 2003-06-30 2005-01-20 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zu einer Brennkraftmaschine
DE102004034670B3 (de) * 2004-07-17 2005-10-27 Festo Ag & Co. Vakuum-Saugdüse und Verfahren zu ihrer Herstellung
DE102008022279B4 (de) * 2008-04-25 2011-06-16 Deutsches Zentrum für Luft- und Raumfahrt e.V. Strahlpumpe und Verfahren zum Betrieb einer Strahlpumpe
DE102016206614A1 (de) * 2016-04-19 2017-10-19 Elringklinger Ag Ejektorvorrichtung und Kombination aus einer Zylinderkopfhaube und einer Ejektorvorrichtung
DE102016206615A1 (de) * 2016-04-19 2017-10-19 Elringklinger Ag Ejektorvorrichtung und Kombination aus einer Zylinderkopfhaube und einer Ejektorvorrichtung
CN114542343A (zh) * 2020-11-26 2022-05-27 纬湃汽车电子(芜湖)有限公司 双引射泵、单引射泵以及燃油供应系统
DE102021200741A1 (de) 2021-01-27 2022-07-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung eines Ejektors und mit diesem Verfahren hergestellter Ejektor
DE102021202671A1 (de) * 2021-03-18 2022-09-22 Vitesco Technologies GmbH Mischrohrrohling, Mischrohr, Mischrohraufnahme, Saugstrahlpumpe und Verfahren zu deren Herstellung
DE102021122708A1 (de) 2021-09-02 2023-03-02 Alfred Kärcher SE & Co. KG Flächenreinigungskopf

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782410A (en) * 1972-12-26 1974-01-01 T Steuby Valve
US3788559A (en) * 1972-03-20 1974-01-29 J Graffman Injection nozzle for liquid fuel
US4195780A (en) * 1977-12-01 1980-04-01 Vortec Corporation Flow amplifying nozzle
US4615323A (en) * 1983-07-29 1986-10-07 Robert Bosch Gmbh Pump/nozzle unit for fuel injection in internal combustion engines
US4658893A (en) * 1986-05-16 1987-04-21 Black John B Jet pump with reverse flow removal of injection nozzle
US4898517A (en) * 1988-10-21 1990-02-06 Eriksen Olof A Steam/air ejector for generating a vacuum
US5478209A (en) * 1994-07-11 1995-12-26 Pcf Group, Inc. Jet barrel and hose fitting insert for a jet pump
US5797377A (en) * 1996-05-08 1998-08-25 Robert Bosch Gmbh Fuel feeding device for motor vehicles

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7503116U (de) * 1974-04-16 1976-08-12 K.K. Komatsu Seisakusho, Tokio Saugvorrichtung fuer eine fluidumpumpe
DE3612194C1 (de) * 1986-04-11 1986-10-16 Daimler-Benz Ag, 7000 Stuttgart Im Kraftstoffbehälter eines Kraftfahrzeuges vorgesehene Kraftstoffstauvorrichtung
DE8815751U1 (de) * 1988-12-20 1989-02-16 Gebr. Jordan GmbH & Co KG, 5860 Iserlohn Saugstrahlpumpe für den Einsatz in einem Kraftstofftank
DE4201037B4 (de) * 1992-01-17 2005-10-13 Bayerische Motoren Werke Ag Saugstrahlpumpe
DE4238040A1 (de) * 1992-11-11 1994-05-19 Vdo Schindling Saugstrahlpumpe zum Fördern von Kraftstoff
DE4400958C1 (de) * 1994-01-14 1995-04-06 Bayerische Motoren Werke Ag Saugstrahlpumpe
DE4435703A1 (de) * 1994-10-06 1996-04-11 Vdo Schindling Saugstrahlpumpe und ihre Verwendung
DE19504565A1 (de) * 1995-02-11 1996-08-14 Bosch Gmbh Robert Saugstrahlpumpe
DE19512700A1 (de) * 1995-04-07 1996-10-10 Teves Gmbh Alfred Strahlpumpe
DE19544049C2 (de) * 1995-11-25 2000-04-27 Mannesmann Vdo Ag Saugstrahlpumpe
DE19606020B4 (de) * 1996-02-19 2008-04-17 Siemens Ag Für den Einsatz in einem Kraftstoffbehälter eines Kraftfahrzeuges vorgesehene Saugstrahlpumpe
FR2753748B1 (fr) * 1996-09-26 1998-12-11 Dispositif d'aspiration a base de pompe a jet pour reservoir de carburant de vehicules automobiles
FR2769054B1 (fr) * 1997-10-01 2001-12-07 Marwal Systems Pompe a jet comprenant un gicleur de section variable
FR2778948B1 (fr) * 1998-05-19 2002-03-08 Bitron France Ensemble de pompage de carburant et reservoir de vehicule automobile equipe d'un tel ensemble de pompage
DE19850046A1 (de) * 1998-10-30 2000-05-11 Ver Foerderung Inst Kunststoff Verfahren und Vorrichtung zur Herstellung von Kunststoff-Formteilen mit Hohlräumen, Hinterschneidungen oder Kanälen mit mikroskopischen Abmessungen
DE19855433B4 (de) * 1998-11-27 2005-10-06 Siemens Ag Saugstrahlpumpe
DE19856298C1 (de) * 1998-12-07 2000-02-17 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges
DE19908936C2 (de) * 1999-03-02 2002-10-31 Feinwerktechnik Wetzlar Gmbh Spritzgießvorrichtung und Verfahren zur Herstellung präzisionsoptischer und präzisionsmechanischer Teile aus einem thermoplastischen Kunststoff
DE19926181C1 (de) * 1999-06-09 2000-12-14 Inst Mikrotechnik Mainz Gmbh Magazin für mikrostrukturierte Formteile und Verfahren zu dessen Herstellung
DE10119553B4 (de) * 2001-04-21 2005-06-23 Siemens Ag Saugstrahlpumpe und Verfahren zur Herstellung einer Düse für eine Saugstrahlpumpe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788559A (en) * 1972-03-20 1974-01-29 J Graffman Injection nozzle for liquid fuel
US3782410A (en) * 1972-12-26 1974-01-01 T Steuby Valve
US4195780A (en) * 1977-12-01 1980-04-01 Vortec Corporation Flow amplifying nozzle
US4615323A (en) * 1983-07-29 1986-10-07 Robert Bosch Gmbh Pump/nozzle unit for fuel injection in internal combustion engines
US4658893A (en) * 1986-05-16 1987-04-21 Black John B Jet pump with reverse flow removal of injection nozzle
US4898517A (en) * 1988-10-21 1990-02-06 Eriksen Olof A Steam/air ejector for generating a vacuum
US5478209A (en) * 1994-07-11 1995-12-26 Pcf Group, Inc. Jet barrel and hose fitting insert for a jet pump
US5797377A (en) * 1996-05-08 1998-08-25 Robert Bosch Gmbh Fuel feeding device for motor vehicles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7901191B1 (en) 2005-04-07 2011-03-08 Parker Hannifan Corporation Enclosure with fluid inducement chamber
US20080273993A1 (en) * 2005-09-28 2008-11-06 Klaus Markefka Ejector Tube of an Ejector Pump
US20090013971A1 (en) * 2006-01-24 2009-01-15 Karl Eck Feed unit
US7665446B2 (en) 2006-01-24 2010-02-23 Continental Automotive Gmbh Feed unit
US20160102683A1 (en) * 2014-10-13 2016-04-14 Denso Corporation Jet pump, manufacturing method of jet pump, and fuel supply device having jet pump
US10138906B2 (en) * 2014-10-13 2018-11-27 Denso Corporation Jet pump, manufacturing method of jet pump, and fuel supply device having jet pump
US10982575B2 (en) 2016-04-19 2021-04-20 Elringklinger Ag Ejector device and combination of a cylinder head cover and an ejector device
US11280353B2 (en) * 2016-07-14 2022-03-22 Vitesco Technologies GmbH Suction jet pump with sealing of the injection mold installation opening by a metal ball fixed with plastic deformation

Also Published As

Publication number Publication date
EP1381778B1 (de) 2009-05-13
DE10119553A1 (de) 2003-08-21
WO2002086323A3 (de) 2003-02-06
JP4188700B2 (ja) 2008-11-26
WO2002086323A2 (de) 2002-10-31
EP1381778A2 (de) 2004-01-21
BR0209025B1 (pt) 2011-12-27
DE50213550D1 (de) 2009-06-25
CN1313734C (zh) 2007-05-02
BR0209025A (pt) 2004-07-20
CN1503880A (zh) 2004-06-09
DE10119553B4 (de) 2005-06-23
JP2004531668A (ja) 2004-10-14

Similar Documents

Publication Publication Date Title
US20020172601A1 (en) Suction jet pump and method for producing a nozzle for a suction jet pump
US6182694B1 (en) Fuel delivery unit having a line connection
US10597165B2 (en) Method of manufacturing a strainer, a strainer, and an ejector comprising such a strainer
US8317468B2 (en) Flow-routing component of a pump
US6425378B1 (en) Device for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle
US7748949B2 (en) Fuel pump with inner channel priming
US20010055530A1 (en) Fuel feed unit
EP1805408B1 (de) Kraftstoffpumpe und kraftstoffversorgungsanlage für eine brennkraftmaschine eines kraftfahrzeuges mit einer kraftstoffpumpe
US6553973B1 (en) Fuel tank cover and filter assembly for fuel tank
US7331771B2 (en) Method and apparatus for attaching a transmission filter to a pump
US6478014B1 (en) Delivery unit arranged in a surge chamber of a fuel tank of a motor vehicle
US6516964B1 (en) Fuel tank
KR20010101711A (ko) 이젝터 펌프
CN111094738B (zh) 高压直喷用轨
US20080273993A1 (en) Ejector Tube of an Ejector Pump
CN108884798B (zh) 燃料泵组件
KR100523681B1 (ko) 자동차용 탱크와 이 탱크용 플랜지
US20030034073A1 (en) Check valve for fuel pump
US8091586B2 (en) Method of manufacturing a venturi tube for a fuel system
EP1401625B1 (de) Treibmittelleitung für eine saugstrahlpumpe und zwei verfahren zur herstellung der treibmitteilleitung
US20090266341A1 (en) Fuel delivery unit for a motor vehicle
CN218441217U (zh) 一种汽车中冷器出气管
US6423221B1 (en) Pump assembly
US20050034304A1 (en) Method for producing a housing element of a supply pump provided with a channel housing element for a supply pump and a tool mould for producing a housing element comprising a channel
JP2021188576A (ja) ポンプケース

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION