EP0297256B1 - Dispositif d'alimentation en carburant - Google Patents

Dispositif d'alimentation en carburant Download PDF

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Publication number
EP0297256B1
EP0297256B1 EP88107670A EP88107670A EP0297256B1 EP 0297256 B1 EP0297256 B1 EP 0297256B1 EP 88107670 A EP88107670 A EP 88107670A EP 88107670 A EP88107670 A EP 88107670A EP 0297256 B1 EP0297256 B1 EP 0297256B1
Authority
EP
European Patent Office
Prior art keywords
supply unit
fuel supply
fuel
unit according
tank
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
EP88107670A
Other languages
German (de)
English (en)
Other versions
EP0297256A2 (fr
EP0297256A3 (en
Inventor
Piet-Jürgen Reinhardt
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP0297256A2 publication Critical patent/EP0297256A2/fr
Publication of EP0297256A3 publication Critical patent/EP0297256A3/de
Application granted granted Critical
Publication of EP0297256B1 publication Critical patent/EP0297256B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a fuel delivery unit according to the preamble of patent claim 1.
  • a fuel delivery unit known from DE-A-15 26 652 has an electric fuel pump which rests on the tank bottom via an elastic cushion and is suspended directly on the delivery pipe, this delivery pipe being of two parts and the two sections being connected to one another via a sleeve or sleeve are.
  • This sleeve or sleeve can be, for example, a plastic tube or another elastic, flexible device. The pump is pressed against the tank bottom via the pipe section, the carrier pipe and the sleeve forming a kind of preload.
  • the pump is also suspended from the delivery pipe, but can move axially sufficiently and is supported either directly or via a separate support foot on the tank bottom with the aid of damping elements.
  • a guide is provided on the tank cap, which engages in a frame by means of laterally projecting flanges and can be moved leads.
  • the fuel pump is arranged on this frame by means of damping elements.
  • return lines are provided below the fuel level in order to prevent unnecessary vapor formation.
  • the task of the invention is to design a generic fuel delivery unit in such a way that the suction connection of the fuel pump and the return line outlet are always directly above the tank bottom, even when the tank bottom is lowered.
  • the fuel delivery unit shown in Figure 1 consists of a tank cap 1 with a pressure line part 2 and a return line part 4.
  • a lower part 6 with further line parts 3, 9 of the pressure and the return line is pushed over these two line parts 2, 4, a compression spring 5 being pushed onto the return line part 4 between cover 1 and lower part 6, so that the lower part 6 extends the return line axis is supported under the force of this spring 5 on the tank bottom 7.
  • the pressure line 9 in the lower part 6 is connected to the pressure connection of an electric fuel pump 8 via a bellows 11 acting as a damping element.
  • the return line 3 in the lower part 6 opens out into the fuel tank via an outlet opening 14.
  • a sealing ring 17 is advantageously arranged in the region of the pressure line 9 for sealing the pressure line part 2.
  • spring elements 18 are provided for radial fixation, the filter element 12 being designed as a damping element which rests on the tank bottom and has a greater spring stiffness than that between the electric fuel pump 8 and the bellows 11 attached to the pressure line part 9.
  • the filter element 12 is connected to the electric fuel pump via a further damping element 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Vibration Dampers (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (8)

  1. Dispositif d'alimentation en carburant, comprenant une pompe de carburant électrique (8) qui peut être intégrée dans un réservoir de carburant d'un véhicule automobile et fixée par l'intermédiaire d'un élément amortisseur de bruit (13) ou d'éléments élastiques (18) sur un élément inférieur (6) qui, avec une section de conduite de refoulement inférieure (9) reliée par l'intermédiaire d'un autre élément amortisseur de bruit (11) au raccord de refoulement de la pompe de carburant (8), est emboîté sur une section de conduite forcée supérieure (2) solidaire d'un bouchon de réservoir (1), guidé de manière rigide en rotation par un guidage solidaire du bouchon de réservoir (1) et maintenu, sous l'action d'un ressort de compression (5) agissant sur l'élément inférieur (6) et par l'intermédiaire de moyens d'écartement, à une distance définie par rapport au fond (7) du réservoir, caractérisé en ce que le guidage est constitué par une section de conduite de retour supérieure (4) sur laquelle l'élément inférieur (6) est emboîté avec une section de conduite de retour inférieure (3) qui débouche dans le réservoir de carburant, le ressort de compression (5) est engagé entre le bouchon de réservoir (1) et l'élément inférieur (6) sur la section de conduite de retour (4), et l'élément inférieur (6) prenant appui sur le fond (7) du réservoir, dans le prolongement de l'axe de la conduite de retour.
  2. Dispositif d'alimentation en carburant selon la revendication 1, caractérisé en ce que l'élément inférieur (6) emboîté sur la section de conduite de retour supérieure (4) est maintenu de manière axialement imperdable par une douille de guidage (15) qui, de manière élastique, s'écarte radialement vers l'extérieur lors de l'emboîtement, et par une saillie d'arrêt (16) conformée sur l'élément inférieur (6).
  3. Dispositif d'alimentation en carburant selon l'une des revendications 1 ou 2, caractérisé en ce que dans la section de conduite de refoulement inférieure (9) recevant la section de conduite de refoulement supérieure (2) est ménagée une gorge circulaire dans laquelle est logé un joint d'étanchéité (18).
  4. Dispositif d'alimentation en carburant selon l'une des revendications 1 à 3, caractérisé en ce que la pompe de carburant électrique est élastiquement appliquée par l'élément amortisseur (11) conformé en soufflet contre une surface axiale d'un oeil de palier (10) de l'élément inférieur (6).
  5. Dispositif d'alimentation en carburant selon la revendication 4, caractérisé en ce que l'élément amortisseur de bruit (13) est disposé entre des surfaces axiales et radiales de l'oeil de palier (10) et la pompe de carburant électrique (8).
  6. Dispositif d'alimentation en carburant selon l'une des revendications 1 à 5, caractérisé en ce que le côté de la pompe dirigé vers le fond (7) du réservoir comporte un élément filtrant (12).
  7. Dispositif d'alimentation en carburant selon la revendication 6, caractérisé en ce que l'élément filtrant (12) est conformé en élément amortisseur qui repose sur le fond du réservoir et présente une rigidité élastique plus grande que celle du soufflet (11) situé entre la pompe de carburant électrique (8) et la section de conduite de refoulement inférieure (9).
  8. Dispositif d'alimentation en carburant selon la revendication 6 ou 7, caractérisé en ce que l'élément filtrant (12) est relié à la pompe de carburant électrique par l'intermédiaire d'un élément amortisseur supplémentaire (19).
EP88107670A 1987-07-03 1988-05-13 Dispositif d'alimentation en carburant Expired - Lifetime EP0297256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3721977A DE3721977C2 (de) 1987-07-03 1987-07-03 Brennstoffördereinheit
DE3721977 1987-07-03

Publications (3)

Publication Number Publication Date
EP0297256A2 EP0297256A2 (fr) 1989-01-04
EP0297256A3 EP0297256A3 (en) 1989-12-13
EP0297256B1 true EP0297256B1 (fr) 1992-07-22

Family

ID=6330817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107670A Expired - Lifetime EP0297256B1 (fr) 1987-07-03 1988-05-13 Dispositif d'alimentation en carburant

Country Status (3)

Country Link
EP (1) EP0297256B1 (fr)
DE (2) DE3721977C2 (fr)
ES (1) ES2034015T3 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617032Y2 (ja) * 1987-11-18 1994-05-02 三菱電機株式会社 インタンク式燃料ポンプ
US4961693A (en) * 1988-12-16 1990-10-09 Walbro Corporation Fuel pump isolation mount
US4964787A (en) * 1989-04-06 1990-10-23 Walbro Corporation Electric vehicle pump isolation mount
US4945884A (en) * 1989-10-24 1990-08-07 General Motors Corporation Modular fuel delivery system
FR2681294B1 (fr) * 1991-09-12 1997-04-25 Plastic Omnium Cie Dispositif pour aspirer du carburant au fond d'un reservoir deformable.
DE4141211A1 (de) * 1991-12-13 1993-06-17 Bayerische Motoren Werke Ag Kraftstoff-foerdereinheit fuer ein kraftfahrzeug
DE4142017A1 (de) * 1991-12-19 1993-06-24 Hasso Von Bluecher Vorrichtung zur reduzierung der emission beim betanken von kraftfahrzeugen
US5165867A (en) * 1992-02-25 1992-11-24 General Motors Corporation Fuel pump mounting
FR2757572B1 (fr) * 1996-12-20 1999-03-19 Marwal Systems Ensemble de pompage de carburant pour vehicule automobile et reservoir ainsi equipe
FR2779773B1 (fr) * 1998-06-16 2000-09-01 Marwal Systems Systeme de jaugeage et de puisage de carburant pour reservoir de vehicule automobile et reservoir ainsi equipe
DE19933046B4 (de) 1999-07-15 2004-08-26 Siemens Ag In einem Kraftstoffbehälter anzuordnende Fördereinheit
DE10027991B4 (de) 2000-06-08 2005-11-10 Kautex Textron Gmbh & Co. Kg Kraftstofffördereinheit
DE10132187B4 (de) * 2001-07-03 2016-07-07 Volkswagen Ag Kraftstofffördersystem und Kraftstofftank
DE10355309A1 (de) * 2003-11-27 2005-06-30 Siemens Ag Kraftstofffördereinheit
JP4329037B2 (ja) * 2004-12-28 2009-09-09 株式会社デンソー 燃料供給装置
JP4356897B2 (ja) * 2005-06-07 2009-11-04 株式会社デンソー 燃料供給装置
DE102007015950A1 (de) 2007-04-03 2008-10-09 Ti Automotive (Neuss) Gmbh Kraftstoffpumpenhülse
EP2252476A1 (fr) * 2008-02-12 2010-11-24 Continental Automotive Systems US, Inc. Transporteur de composant de carburant ayant un double palier lisse
DE102010019700A1 (de) 2010-05-07 2011-11-10 Emitec Gesellschaft Für Emissionstechnologie Mbh Behälter mit einer Entnahmeleitung für eine Betriebsflüssigkeit eines Kraftfahrzeugs
KR101222013B1 (ko) * 2010-06-24 2013-02-15 주식회사 코아비스 연료공급장치
US10215614B2 (en) 2016-07-28 2019-02-26 Nissan North America, Inc. Fuel sender assembly
US10173521B2 (en) 2016-07-28 2019-01-08 Nissan North America, Inc. Fuel tank vapor valve assembly
US10247597B2 (en) 2016-07-28 2019-04-02 Nissan North America, Inc. Fuel pump assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723771C3 (de) * 1977-05-26 1981-12-03 Volkswagenwerk Ag, 3180 Wolfsburg Behälteranordnung, insbesondere Kraftstoff-Behälteranordnung für ein Kraftfahrzeug
DE2735917C2 (de) * 1977-08-10 1986-04-03 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
DE2750081A1 (de) * 1977-11-09 1979-05-10 Rau Swf Autozubehoer Brennstoffoerderaggregat
DE2936773A1 (de) * 1979-09-12 1981-04-02 SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen Brennstoffoerderanlage, insbesondere fuer kraftfahrzeuge
DE3509309A1 (de) * 1985-03-15 1986-09-18 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges
US4651701A (en) * 1986-02-13 1987-03-24 Steart-Warner Corp. Submersible fuel pump and sender assembly
US4694857A (en) * 1986-03-31 1987-09-22 Stant Inc. Fuel sender unit

Also Published As

Publication number Publication date
DE3872965D1 (de) 1992-08-27
EP0297256A2 (fr) 1989-01-04
EP0297256A3 (en) 1989-12-13
DE3721977A1 (de) 1989-01-12
DE3721977C2 (de) 1997-02-06
ES2034015T3 (es) 1993-04-01

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