EP1155230B1 - Pompe a jet aspirant - Google Patents

Pompe a jet aspirant Download PDF

Info

Publication number
EP1155230B1
EP1155230B1 EP00976064A EP00976064A EP1155230B1 EP 1155230 B1 EP1155230 B1 EP 1155230B1 EP 00976064 A EP00976064 A EP 00976064A EP 00976064 A EP00976064 A EP 00976064A EP 1155230 B1 EP1155230 B1 EP 1155230B1
Authority
EP
European Patent Office
Prior art keywords
mixing tube
nozzle
ejector pump
pump according
jet pump
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.)
Expired - Lifetime
Application number
EP00976064A
Other languages
German (de)
English (en)
Other versions
EP1155230A1 (fr
Inventor
Dirk Becker
Johannes Deichmann
Peter Marx
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1155230A1 publication Critical patent/EP1155230A1/fr
Application granted granted Critical
Publication of EP1155230B1 publication Critical patent/EP1155230B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • 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

Definitions

  • the invention relates to a suction jet pump with a nozzle arranged in front of a mixing tube and with holding elements for aligning the nozzle relative to the mixing tube, wherein the nozzle and the mixing tube made of plastic by injection molding.
  • Suction jet pumps of the above type are often used in fuel tanks of today's motor vehicles and are therefore known.
  • the suction jet pumps are usually used for filling a baffle arranged in the fuel tank or in a multi-chamber tank for conveying fuel from one chamber into the other chamber.
  • the mixing tube and the nozzle are manufactured in separate molds, for example by injection molding and then glued together.
  • the holding elements are designed as webs fixed integrally with the nozzle and are based on the assembly of the suction jet pump on corresponding surfaces of the mixing tube.
  • a suction jet pump with a nozzle and an angled mixing tube is known, wherein only a part of the mixing tube is aligned with the nozzle. This part of the mixing tube and the nozzle are integrally connected. The second part of the mixing tube is formed as a separate part in the swirl pot.
  • the invention is based on the problem of designing a suction jet pump of the type mentioned so that it has a particularly high efficiency and is inexpensive to produce.
  • the nozzle and the mixing tube are designed for production as a continuous component in a common mold, that the nozzle and the mixing tube are integrally connected by at least two holding elements, and the holding elements for lateral delimitation of in the lateral surface the mixing tube arranged suction openings are formed.
  • the suction jet pump has a particularly high efficiency. Since all essential components of the suction jet pump according to the invention are made in one piece, a faulty assembly also does not lead to a reduction in their efficiency.
  • the ejector pump can also be produced particularly cost-effective by their production in a single mold. Another advantage of this design is that the ejector according to the invention has a high stability and therefore holding forces in the fuel tank do not lead to a reduction in their efficiency.
  • a simultaneous alignment and attachment of the invention provided for the promotion of fuel in a surge pot of a motor vehicle suction jet pump can be easily achieved if it has means for their tension in a arranged in a fuel tank of a motor vehicle conveyor unit or a swirl pot. This leads to a strong simplification of the assembly of the suction jet pump in the conveyor unit.
  • Another advantage of this strained in the delivery unit suction jet pump is that the delivery unit is very compact and can be modularly assembled into a pre-assembled unit.
  • connection of the suction jet pump according to the invention to a propellant conduit is structurally particularly simple if the nozzle has on its side facing away from the mixing tube a sealing flange and means for clamping with a correspondingly shaped propellant conduit.
  • the sealing flange of the nozzle and the propellant line can be screwed together for example, for clamping or connected to each other by latching means.
  • annular sealing surface for sealing the suction jet pump mounted in the delivery unit or in the swirl pot is arranged on the outside of the mixing tube.
  • the suction jet pump according to the invention can be easily braced in an adjacent component, if locking means are arranged for attachment to the conveyor unit or to the swirl pot on the outside of the mixing tube.
  • the latching means are structurally particularly simple according to another advantageous embodiment of the invention, when the latching means are designed as latching hooks.
  • the manufacture of the suction jet pump according to the invention can be produced in a largely axially demoldable tool shape when the entire mixing tube is designed straight from the intake to its free end straight or conically widening.
  • straight sections of the mixing tube and conical sections may alternate here.
  • Suction openings for the suction of fuel could be arranged, for example, in the nozzle receiving end face of the mixing tube.
  • the suction jet pump according to the invention is designed to be particularly compact when the holding elements are designed for the lateral delimitation of suction openings arranged in the lateral surface of the mixing tube.
  • FIG. 1 schematically shows a delivery unit 3 mounted in a swirl pot 1 of a fuel tank 2 of a motor vehicle.
  • the delivery unit 3 has an impeller 5 of a feed pump 6 driven by an electric motor 4 and sealingly inserted into an opening 7 in the bottom of the swirl pot 1.
  • a suction jet pump 8 is arranged in the holder for the conveyor unit 3.
  • the suction jet pump 8 is supplied with fuel via a drive line 5 connected to the impeller 5.
  • the pumped via the fuel line to the suction jet fuel first passes to a nozzle 10.
  • the suction jet pump 8 sucks via suction 11 fuel from the fuel tank 1 and promotes this in the swirl pot 1.
  • the feed pump 6 sucks from the swirl pot 1 fuel via a line 12th and promotes this via another line 13 to an internal combustion engine, not shown of the motor vehicle.
  • the suction jet pump 8 has at its end near the nozzle 10 a sealing flange 14, with which it is biased against a correspondingly shaped region of the conveyor unit 3. With its end facing the sealing flange 14, the suction jet pump 8 penetrates a recess 15 of the conveyor unit 3. In the recess 15, an O-ring 16 is arranged.
  • the suction jet pump 8 has an annular sealing surface 17 in this area.
  • FIG 2 shows the suction jet pump 8 of Figure 1 in a perspective view.
  • the suction jet pump has a mixing tube 18 facing the nozzle 10.
  • the suction openings 11 are arranged in the mixing tube 18 in its region adjacent to the nozzle 10.
  • the suction openings 11 are bounded laterally by retaining elements 19 designed as webs.
  • the mixing tube 18 has a latching hook 20 attached to the outer circumferential surface.
  • the radially outer and inner surfaces of the mixing tube 18 are each cylindrical.
  • the nozzle 10 tapers toward the mixing tube 18.
  • the suction jet pump 8 can be made in one piece with the exception of the suction openings 11 in an axially demoldable tool mold.
  • the suction openings 11 can be made, for example, by means of cores to be introduced into the mold or by machining.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (7)

  1. Pompe à jet aspirant (8) comportant un gicleur (10) disposé devant un tube mélangeur (18) et des éléments de retenue (19) destinés à aligner le gicleur (10) par rapport au tube mélangeur (18), où le gicleur (10) et le tube mélangeur (18) sont fabriqués en matière plastique par un procédé de moulage par injection, caractérisée par le fait que le gicleur (10) et le tube mélangeur (18) sont conçus pour être fabriqués comme pièce cohérente unique dans un moule commun, que le gicleur (10) et le tube mélangeur (18) sont liés l'un à l'autre en une seule pièce par au moins deux éléments de retenue (19) et que les éléments de retenue (19) sont conçus pour limiter latéralement des ouvertures d'aspiration (11) disposées dans la surface latérale du tube mélangeur (18).
  2. Pompe à jet aspirant selon la revendication 1 caractérisée par le fait qu'elle a des moyens pour la fixer dans une unité d'alimentation (3) disposée dans un réservoir à carburant (2) d'un véhicule automobile ou dans un pot de compensation (1) .
  3. Pompe à jet aspirant selon la revendication 1 ou 2 caractérisée par le fait que le gicleur (10) a, sur son côté opposé au tube mélangeur (18), une flasque d'étanchéité (14) et des moyens permettant la fixation à une conduite de fluide moteur conçue en conséquence.
  4. Pompe à jet aspirant selon au moins l'une des revendications précédentes caractérisée par le fait que, sur la face extérieure latérale du tube mélangeur (18), est disposée une surface d'étanchéité (17) en forme d'anneau destinée à assurer l'étanchéité de la pompe à jet aspirant (8) montée dans l'unité d'alimentation (3) ou dans le pot de compensation (1).
  5. Pompe à jet aspirant selon au moins l'une des revendications précédentes caractérisée par le fait que, sur la face extérieure du tube mélangeur (18), sont disposés des moyens d'encliquetage destinés à la fixation sur l'unité d'alimentation (3) ou sur le pot de compensation (1).
  6. Pompe à jet aspirant selon au moins l'une des revendications précédentes caractérisée par le fait que les moyens d'encliquetage sont conçus comme crochets à encliqueter (20).
  7. Pompe à jet aspirant selon au moins l'une des revendications précédentes caractérisée par le fait que l'ensemble du tube mélangeur (18) est, depuis sa zone d'aspiration jusqu'à son extrémité libre, linéaire ou s'agrandit d'une façon conique.
EP00976064A 1999-11-26 2000-11-22 Pompe a jet aspirant Expired - Lifetime EP1155230B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19957066 1999-11-26
DE19957066A DE19957066A1 (de) 1999-11-26 1999-11-26 Saugstrahlpumpe
PCT/EP2000/011607 WO2001038719A1 (fr) 1999-11-26 2000-11-22 Pompe a jet aspirant

Publications (2)

Publication Number Publication Date
EP1155230A1 EP1155230A1 (fr) 2001-11-21
EP1155230B1 true EP1155230B1 (fr) 2006-01-18

Family

ID=7930502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00976064A Expired - Lifetime EP1155230B1 (fr) 1999-11-26 2000-11-22 Pompe a jet aspirant

Country Status (9)

Country Link
US (1) US6619927B1 (fr)
EP (1) EP1155230B1 (fr)
JP (1) JP2003515046A (fr)
KR (1) KR20010101711A (fr)
CN (1) CN1338026A (fr)
BR (1) BR0007712B1 (fr)
DE (2) DE19957066A1 (fr)
ES (1) ES2256058T3 (fr)
WO (1) WO2001038719A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237050B3 (de) 2002-08-09 2004-04-15 Siemens Ag Saugstrahlpumpe
ES2245567B1 (es) * 2003-09-16 2007-04-01 Loramendi, S.A. Dispositivo expulsor de caja de machos con distribucion de agente desmoldeante.
KR100578540B1 (ko) * 2004-07-28 2006-05-15 한국뉴매틱(주) 진공 이젝터 펌프
US7914263B2 (en) * 2007-05-14 2011-03-29 Vladimir Berger Ejector-type rotary device
US8644260B2 (en) * 2009-05-01 2014-02-04 Qualcomm Incorporated Apparatus and method for increasing reliability of serving cell change
US9039385B2 (en) 2011-11-28 2015-05-26 Ford Global Technologies, Llc Jet pump assembly
DE102013203942B4 (de) 2013-03-07 2014-12-04 Continental Automotive Gmbh In einem Kraftstoffbehälter eines Kraftfahrzeugs angeordnete Saugstrahlpumpe
DE102016206616A1 (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
DE102021202671A1 (de) * 2021-03-18 2022-09-22 Vitesco Technologies GmbH Mischrohrrohling, Mischrohr, Mischrohraufnahme, Saugstrahlpumpe und Verfahren zu deren Herstellung
DE102023109970A1 (de) 2023-04-20 2024-10-24 Schaeffler Technologies AG & Co. KG Ejektor für eine Brennstoffzellengasrezirkulation

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1530128A (en) * 1974-10-21 1978-10-25 Gen Electric Jet pumps and nozzles therefor
US4834132A (en) * 1986-09-25 1989-05-30 Nissan Motor Company, Limited Fuel transfer apparatus
DE3719809C1 (de) * 1987-06-13 1988-06-09 Daimler Benz Ag Stautopf fuer Kraftstoffbehaelter
JP2580021B2 (ja) * 1988-12-07 1997-02-12 日産自動車株式会社 自動車用燃料タンクの旋回槽
DE8815751U1 (de) * 1988-12-20 1989-02-16 Gebr. Jordan GmbH & Co KG, 5860 Iserlohn Saugstrahlpumpe für den Einsatz in einem Kraftstofftank
WO1992008037A1 (fr) * 1990-11-03 1992-05-14 Peco Machine Shop & Inspection Services Ltd. Systeme de pompe a jet au fond du puits utilisant un gaz comme fluide de commande
GB2271327A (en) * 1992-10-10 1994-04-13 Ford Motor Co A fuel tank reservoir.
DE4310761C2 (de) * 1993-04-01 1995-10-12 Kayser A Gmbh & Co Kg Strahlpumpe
DE4400958C1 (de) * 1994-01-14 1995-04-06 Bayerische Motoren Werke Ag Saugstrahlpumpe
DE19512700A1 (de) * 1995-04-07 1996-10-10 Teves Gmbh Alfred Strahlpumpe
DE19530423C2 (de) * 1995-08-18 1999-06-02 Mannesmann Vdo Ag Saugstrahlpumpe für den Einsatz in einem Kraftstofftank
DE19618649A1 (de) * 1996-05-09 1997-11-13 Bosch Gmbh Robert Kraftstoffördereinrichtung eines Kraftfahrzeuges
DE19714858C1 (de) * 1997-04-10 1998-11-19 Kayser Automotive Systems Gmbh Saugstrahlpumpe
DE19805072C2 (de) * 1998-02-09 1999-11-11 Bosch Gmbh Robert Kraftstoffördermodul
SE511716E5 (sv) * 1998-03-20 2009-01-28 Piab Ab Ejektorpump
DE19830504B4 (de) * 1998-07-08 2005-12-22 Siemens Ag Für den Einsatz in einem Kraftstoffbehälter eines Kraftfahrzeuges vorgesehener Schwalltopf
DE19833130A1 (de) * 1998-07-23 2000-01-27 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
ES2238240T3 (es) * 1999-11-23 2005-09-01 Siemens Aktiengesellschaft Unidad de alimentacion dispuesta en una cubeta de chapoteo de un deposito de combustible de un vehiculo de motor.

Also Published As

Publication number Publication date
CN1338026A (zh) 2002-02-27
DE19957066A1 (de) 2001-05-31
DE50012089D1 (de) 2006-04-06
KR20010101711A (ko) 2001-11-14
EP1155230A1 (fr) 2001-11-21
US6619927B1 (en) 2003-09-16
BR0007712B1 (pt) 2010-04-06
WO2001038719A1 (fr) 2001-05-31
ES2256058T3 (es) 2006-07-16
BR0007712A (pt) 2001-11-27
JP2003515046A (ja) 2003-04-22

Similar Documents

Publication Publication Date Title
EP1155230B1 (fr) Pompe a jet aspirant
WO2001094144A1 (fr) Unite d'alimentation en carburant
EP1417110B1 (fr) Unite de pompage destinee a etre mise en place dans un reservoir interne d'un reservoir a carburant d'une automobile
EP1103717B1 (fr) Pompe disposée dans le réceptacle d'un réservoir de carburant d'un véhicule
EP2007988A1 (fr) Pompe a jet aspirant
DE2401728C2 (de) Im Kraftstofftank eines Kraftfahrzeuges angeordneter runder Beruhigungstopf
WO2002020974A1 (fr) Module filtrant d'une unite de transport du carburant et unite de transport du carburant d'un vehicule
DE4111341A1 (de) Kraftstoffbehaelteranlage
DE102006003420A1 (de) Fördereinheit
EP1210510B1 (fr) Unite de refoulement
EP2040951A1 (fr) Unité d'alimentation pour l'alimentation en carburant
DE102016212858B4 (de) Saugstrahlpumpe
DE102012221555A1 (de) Filteroberschale, Filter und Verfahren zum Herstellen einer Filteroberschale
WO2003012280A1 (fr) Dispositif d'alimentation en carburant pour un vehicule automobile
DE3130286A1 (de) Pumpe zum foerdern von kraftstoff aus einem vorratstank zu einer brennkraftmaschine
EP1861625B1 (fr) Ejecteur
DE9116296U1 (de) Kraftstoffbehälteranlage
DE10055344A1 (de) In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit
EP1120572A2 (fr) Pompe centrifuge
EP2066518B1 (fr) Unité d'alimentation en carburant pour un véhicule automobile
DE19534411A1 (de) Vorrichtung zur Aufnahme eines Kraftstoffaggregats innerhalb eines Kraftstoffbehälters
DE10322621B4 (de) Zur Befestigung in einem Kraftstoffbehälter vorgesehene Fördereinheit
EP1022457A2 (fr) Dispositif d'alimentation en carburant
DE19737885B4 (de) Kreiselpumpe zur Erzeugung eines Wasser-Luft-Gemisches
EP1105649A1 (fr) Pompe a liquide destinee notamment a transporter le carburant

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010725

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB SE

17Q First examination report despatched

Effective date: 20040728

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50012089

Country of ref document: DE

Date of ref document: 20060406

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060418

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060411

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2256058

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20061019

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20081121

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20081117

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20091122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091122

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110407

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091123

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20141130

Year of fee payment: 15

Ref country code: FR

Payment date: 20141119

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50012089

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130