WO1997008451A1 - Systeme d'alimentation en carburant - Google Patents

Systeme d'alimentation en carburant Download PDF

Info

Publication number
WO1997008451A1
WO1997008451A1 PCT/DE1996/000921 DE9600921W WO9708451A1 WO 1997008451 A1 WO1997008451 A1 WO 1997008451A1 DE 9600921 W DE9600921 W DE 9600921W WO 9708451 A1 WO9708451 A1 WO 9708451A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
fuel tank
fuel delivery
tank
delivery unit
Prior art date
Application number
PCT/DE1996/000921
Other languages
German (de)
English (en)
Inventor
Stephan Kleppner
Kurt Frank
Dieter Schreckenberger
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1997008451A1 publication Critical patent/WO1997008451A1/fr

Links

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
    • F02M37/103—Mounting pumps on fuel tanks

Definitions

  • the invention relates to a fuel delivery device with a fuel tank, from which fuel is delivered to an internal combustion engine, according to the preamble of claim 1.
  • a fuel delivery unit is known from DE-PS 27 50 081, which has an arrangement for compensating for height tolerances of a fuel tank.
  • a fuel delivery unit is connected to a tank flange via a delivery pipe, which is designed directly as a supporting part for the fuel delivery unit.
  • a lug is fastened to the delivery pipe, which serves as a support stop for a compression spring, which is arranged between a lug and an upper side of the fuel delivery unit and presses the fuel delivery unit against the ground.
  • the tab is attached to a fuel display device and is soldered to the fuel delivery pipe for reasons of stability.
  • a sleeve-like guide bushing is provided so that the fuel delivery unit can be pressed against the ground and axial compensation can take place between the delivery pipe and the fuel delivery unit. This arrangement is very complex and also has sealing problems.
  • the height tolerance is limited by the relatively small spring travel and the arrangement of the delivery pipe in the sleeve-like guide bush.
  • the fuel delivery device according to the invention with the characterizing features of the main claim shows a simple and inexpensive arrangement for installing a fuel delivery unit in a fuel tank.
  • a compact design can be made possible by the arrangement and fixing of the fuel delivery unit in the fuel tank with a force-displacement storage device, since a separation between the fuel delivery unit and a tank flange is made possible.
  • This also has the advantage that the configuration according to the invention for arranging the fuel delivery unit in a fuel tank is also possible for very flat fuel tanks.
  • Another advantage of the invention is that such an arrangement of the fuel delivery unit in the container can be easily adapted to different heights or sizes of the fuel tank, in which the length of the force-displacement storage device can be adapted to the fuel tank.
  • the force-displacement storage device can provide a large tolerance range with respect to the mutually opposite side walls of the fuel tank, between which the fuel delivery unit rests and the force-displacement storage device rests on the other.
  • An advantageous embodiment of the invention is the design of the force-displacement storage device as a spring given element. This provides a cost-effective arrangement and fastening of the fuel delivery unit in the fuel tank.
  • the spring element can be designed as a band spring, a telescopic spring, preferably as a spiral spring.
  • the tank flange for receiving the electrical and hydraulic connecting lines can be arranged on the fuel tank separately from the fuel delivery unit.
  • a compact construction can thereby be achieved.
  • the tank flange can be arranged in a position on the fuel tank, which is favorable for the connection of the hydraulic and electrical lines leading to the internal combustion engine.
  • FIG. 1 shows a schematic sectional illustration of an arrangement according to the invention in a fuel tank
  • a fuel delivery unit 14 is arranged on the bottom 13 of the fuel tank 12 and is fixed to the bottom 13 of the fuel tank 12 via a force-displacement storage device 16 designed as a spring element.
  • the spring element 16 is supported on an upper side 17 of the fuel tank 12 and rests with an opposite end on an upper side of the fuel delivery unit 14. As a result, the fuel delivery unit 14 is fixed to the floor 13.
  • a receptacle 18 is molded onto the bottom 13 of the fuel tank 12 and at least partially encompasses the fuel delivery unit 14. This allows the fuel delivery unit 14 to be fixed in the radial direction to its longitudinal axis, to the bottom 13 of the fuel tank 12.
  • the receptacle 18 is advantageously formed as at least partially circumferential bead, which faces the bottom 13 into the interior of the fuel tank 12.
  • a receptacle 18 that can be inserted into the fuel tank 12 can be provided as an insert. This can be fastened to the base 13 in the fuel tank 12 using known connection techniques.
  • the spring element 16 is also arranged at one end opposite the fuel delivery unit 14 in a receptacle 19 of the fuel tank 12, which is molded onto the upper side 17 of the fuel tank 12.
  • This receptacle 19 is advantageously designed as a recess for receiving the spring element 16.
  • the receptacle 19 may also al ⁇ circumferential Wul ⁇ t at the Ober ⁇ eite 17 de ⁇ Kraft ⁇ fuel tank be formed 12 '.
  • the receptacle 18 on the bottom 13 insertable receptacle 19 can be arranged on the top side 17 of the fuel tank 12, which is adapted to the size of the spring element 16.
  • the spring element 16 which is advantageously designed as a spiral spring, has a spring constant that presses the fuel delivery unit 14 against the bottom 13 of the fuel tank 12 with certainty. This ensures that the fuel delivery unit 14 can be held in its defined position in the fuel tank 12 even in the event of major vibrations and extreme situations during driving.
  • This advantageous arrangement and fastening via the spring element 16 enables the fuel delivery unit 14 to be installed in a fuel tank 12 with a low overall height.
  • a spring element 16 which is relatively small in its free path length is provided.
  • the fastening by means of the spring element 16 has the further advantage that there can be a relatively large tolerance compensation in terms of amount in the overall height of the fuel tank 12.
  • a tank flange 21 for receiving electrical and hydraulic connecting lines 22, 23 is arranged on a side wall 24 of the fuel tank 12, separately from the fuel feed unit 14.
  • the tank flange 21 can be arranged in any position on a side wall 24 of the fuel tank 12.
  • the tank flange 21 can be arranged in an easily accessible position for connecting the electrical and hydraulic connecting lines 22, 23 to the internal combustion engine to the fuel tank 12.
  • the installation position of the fuel delivery unit 14 in the fuel tank 12 can be provided in any arrangement on the fuel tank 12.
  • the two opposite sides 13, 17 or 24, 24 'between which the fuel delivery unit 14 and the spring element 16 are arranged run essentially parallel to one another.
  • a horizontal position or the like can also be provided.
  • the minimum requirement for such an arbitrary arrangement of the fuel delivery unit 14 within the fuel tank 12 is that the force standard of the force-displacement storage element 16 acts essentially perpendicularly on the upper side of the fuel delivery unit 14, so that it depends
  • the arrangement within the fuel tank 12 must be made in accordance with the type of the force / displacement storage element 16 selected.

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)

Abstract

L'invention concerne un système d'alimentation en carburant comportant un réservoir de carburant (12) depuis lequel du carburant est amené à un moteur à combustion interne. Au fond (13) du réservoir de carburant (12) se trouve un organe d'alimentation en carburant (14) se fixant entre une face supérieure (17) et le fond (13) du réservoir de carburant (12) à l'aide d'un dispositif d'accumulation de force/course (16) se présentant sous la forme d'un élément à ressort. Un boîtier de raccordement (21) recevant au moins une conduite de raccordement électrique et une conduite de raccordement hydraulique (22, 23) peut être monté en un endroit quelconque du réservoir (12) indépendamment de la configuration de l'organe d'alimentation en carburant (14).
PCT/DE1996/000921 1995-08-26 1996-05-28 Systeme d'alimentation en carburant WO1997008451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995131436 DE19531436A1 (de) 1995-08-26 1995-08-26 Kraftstoffördereinrichtung
DE19531436.0 1995-08-26

Publications (1)

Publication Number Publication Date
WO1997008451A1 true WO1997008451A1 (fr) 1997-03-06

Family

ID=7770466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000921 WO1997008451A1 (fr) 1995-08-26 1996-05-28 Systeme d'alimentation en carburant

Country Status (2)

Country Link
DE (1) DE19531436A1 (fr)
WO (1) WO1997008451A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2370590A (en) * 1942-04-03 1945-02-27 Carter Carburetor Corp Motor pump unit
GB1097260A (en) * 1965-03-09 1968-01-03 Acf Ind Inc Fuel system for an internal combustion engine
EP0203244A1 (fr) * 1985-05-25 1986-12-03 FIAT AUTO S.p.A. Système de fixation de la pompe d'alimentation dans le réservoir de carburant
FR2636098A1 (fr) * 1988-09-03 1990-03-09 Delco Electronic Overseas Corp Dispositif aspirateur pour reserve de pompe a carburant
US4945884A (en) * 1989-10-24 1990-08-07 General Motors Corporation Modular fuel delivery system
US5038741A (en) * 1990-04-13 1991-08-13 Walbro Corporation In-tank fuel module
EP0547745A1 (fr) * 1991-12-16 1993-06-23 Ford Motor Company Limited Réservoir de carburant avec récipient

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2370590A (en) * 1942-04-03 1945-02-27 Carter Carburetor Corp Motor pump unit
GB1097260A (en) * 1965-03-09 1968-01-03 Acf Ind Inc Fuel system for an internal combustion engine
EP0203244A1 (fr) * 1985-05-25 1986-12-03 FIAT AUTO S.p.A. Système de fixation de la pompe d'alimentation dans le réservoir de carburant
FR2636098A1 (fr) * 1988-09-03 1990-03-09 Delco Electronic Overseas Corp Dispositif aspirateur pour reserve de pompe a carburant
US4945884A (en) * 1989-10-24 1990-08-07 General Motors Corporation Modular fuel delivery system
US5038741A (en) * 1990-04-13 1991-08-13 Walbro Corporation In-tank fuel module
EP0547745A1 (fr) * 1991-12-16 1993-06-23 Ford Motor Company Limited Réservoir de carburant avec récipient

Also Published As

Publication number Publication date
DE19531436A1 (de) 1997-02-27

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