EP2063099A1 - Treibstoff Modul - Google Patents

Treibstoff Modul Download PDF

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Publication number
EP2063099A1
EP2063099A1 EP07121357A EP07121357A EP2063099A1 EP 2063099 A1 EP2063099 A1 EP 2063099A1 EP 07121357 A EP07121357 A EP 07121357A EP 07121357 A EP07121357 A EP 07121357A EP 2063099 A1 EP2063099 A1 EP 2063099A1
Authority
EP
European Patent Office
Prior art keywords
fuel
support structure
housing
assembly
fuel 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.)
Granted
Application number
EP07121357A
Other languages
English (en)
French (fr)
Other versions
EP2063099B1 (de
Inventor
Patrice Marx
Jean-Francois Robin
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to AT07121357T priority Critical patent/ATE496214T1/de
Priority to EP07121357A priority patent/EP2063099B1/de
Priority to DE602007012120T priority patent/DE602007012120D1/de
Publication of EP2063099A1 publication Critical patent/EP2063099A1/de
Application granted granted Critical
Publication of EP2063099B1 publication Critical patent/EP2063099B1/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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions

Definitions

  • the present invention relates to a fuel pumping and level-detection assembly for fitting in a fuel tank of a motor vehicle. More specifically, the present invention relates to a fuel module for use in the fuel tank of a two-wheeled motor vehicle wherein the tank has an access opening of small cross section.
  • Fuel modules are typically used inside fuel tanks of four-wheeled vehicles which house a fuel pump and filter, a pressure regulator and fuel level sensor and means to mount the module from the access opening in the fuel tank.
  • the opening in the fuel tank of a four-wheeled motor vehicle is generally larger than that of a fuel tank in a two-wheel vehicle, for example a scooter.
  • the small access opening therefore makes it extremely difficult, if not impossible, to fit the module in the fuel tank. In the event of failure of one or more of the devices in the module, removal of the module from the fuel tank is also extremely difficult.
  • a fuel pumping and level-detection assembly for fitting in a fuel tank of a motor vehicle having a small access opening is required.
  • Such an assembly will include one or more of the following features:
  • a fuel pumping and level detection assembly for installation within a fuel tank having a small access opening, the assembly comprising:
  • the elongate sensor may conveniently be inserted into the top of the assembly and guided into the support structure.
  • the housing is complementarily shaped with the sensor body to aid engagement and guidance therewith.
  • a compact assembly is provided which is quick and simple to assemble and disassemble ensuring installation and manufacturing costs are reduced.
  • the senor provides the complete assembly with additional stiffness, strength and rigidity to prevent excessive oscillation, particularly at its lower end, during operation.
  • the bending stiffness of the assembly is increased, at least in a horizontal direction, by the presence of the elongate sensor. Conveniently, this is achieved by using an existing component of the assembly and not additional means, such as a spring or the like.
  • the sensor body may suitably be cylindrical.
  • a circular cross section advantageously maximises the bending stiffness of the sensor, determined along a longitudinal axis of the sensor body, and subsequently the support structure, in at least a horizontal direction.
  • the bending stiffness of a sensor having a circular cross section will conveniently be the same in all directions on a horizontal plane and will not be greater in one particular direction, which would be the case if the cross section were rectangular, for example.
  • the support structure defines a housing having a substantially circular cross section having a longitudinal axis being complementarily shaped with the sensor body.
  • the housing extends between the upper and lower ends, i.e. from the attachment portion to the support portion.
  • the housing is complimentary shaped with the sensor to allow the support structure to engage with and receive and guide the sensor when slidably inserted therein.
  • the elongate sensor may share the same axis as the support structure.
  • the longitudinal axis of the support structure is vertical and is orientated perpendicularly relative to the access opening.
  • the sensor is slidably inserted into the housing along the longitudinal axis.
  • the housing of the support structure provides an axis of rotation to the support structure. This conveniently allows the support structure to be inserted substantially perpendicularly into the fuel tank, rotated about its longitudinal axis into a suitable desired position before the elongate sensor is slidably inserted into the support structure to complete the assembly.
  • the elongate sensor engages with the support structure.
  • the engagement may be provided by an outer surface of the sensor simply interfacing with an inner surface of the support structure.
  • the engagement may be provided by one or more protrusions on the sensor which engage with one or more corresponding slots in the housing.
  • the one or more protrusions may engage with one or more notches to provide a snap-fit engagement.
  • the sensor may comprise a screw thread which corresponds with the housing to allow the sensor to be screwed into the support structure.
  • the attachment portion comprises a flange which interfaces with a part of the fuel tank around the access opening.
  • the flange surrounds the housing opening via which the sensor is slidably inserted into the housing of the support structure.
  • the flange is perpendicularly orientated relative to the longitudinal axis of the support structure.
  • the flange may comprise one or more holes for tubing to pass from or to one or more of the fuel pump and fuel filter.
  • the flange comprises a plurality of holes corresponding to a plurality of holes arranged around the access opening in the fuel tank.
  • Suitable fixings e.g. bolts, may clamp the flange to the fuel tank.
  • the plurality of holes in the fuel tank may comprise a screw thread adapted to receive a bolt.
  • the sensor may simply be inserted into the housing of the support structure and engage with the support structure, as described above, to be secured in situ.
  • a suitably adapted cover may fit on the sensor and have a plurality of holes which correspond with the holes in the flange and fuel tank to allow the cover to clamp the sensor in situ.
  • the fuel tank may comprise a threaded lip on to which a suitably adapted cover screws to clamp the assembly in the fuel tank.
  • Suitable sealing means e.g. an 'O'-ring or washer, may be disposed between the fuel tank and the attachment portion to prevent fuel escaping from the fuel tank.
  • the support portion comprises first and second receptacles, each adapted to receive one of the fuel pump and fuel filter.
  • the receptacles may be complementarily shaped with the fuel pump and filter and may provide complete or partial containment thereof.
  • the pump and filter may be simply placed into the receptacles and be supported by a base of each receptacle or alternatively the pump and filter may simply snap into suitably adapted receptacles having no base.
  • the receptacles are substantially cylindrical having longitudinal axes and are adapted to receive a substantially cylindrical fuel pump or filter.
  • the fuel pump and filter may be readily available, standard devices and the receptacles may be sized accordingly.
  • the longitudinal axes of the cylindrical receptacles are vertical and parallel to the longitudinal axis of the support structure.
  • the receptacles may be integral with the support portion.
  • the first and second receptacles may interface with the bottom of the fuel tank. This will provide further support and rigidity to the assembly and ensure the fuel pump and filter are located at or near a lower portion of the fuel tank for reasons known in the art.
  • the support structure may comprise mounting means to support a pressure regulator.
  • the mounting means may be integral with the support structure.
  • the mounting means may be a third receptacle or alternatively may be other suitable means, e.g. a clip.
  • the mounting means is disposed on the outside of the support structure, near the upper end of the support structure.
  • the mounting means is disposed on an outer surface of the housing and further preferably on an opposing side to the support portion.
  • a longitudinal axis of the pressure regulator may be orientated substantially parallel with the longitudinal axis of the support structure.
  • the support structure defines outer limits within those of the access opening to allow a substantial portion of the support structure to pass perpendicularly through the access opening. This allows the support structure, including at least the fuel pump and filter, to be easily installed in the fuel tank without being angled or requiring additional means to angle a portion of the support structure when being installed.
  • the support structure may be a plastics material and preferably resistant to fuel.
  • a fuel tank comprising a fuel pumping and level detection assembly as described above is also provided.
  • a method of installing a fuel pumping and level-detection assembly in a fuel tank having an access opening comprises the steps of:
  • a method of removing the assembly from the fuel tank will comprise the reverse of one or more of the steps as described above.
  • a fuel pumping and level detection assembly comprises a fuel pump 16 and a fuel filter 18.
  • the fuel pump 16 may include a fuel strainer 64.
  • a support structure 22 is provided including an attachment portion 24 to attach the support structure 22 to the fuel tank 12 in the vicinity of the access opening 14 and a support portion 26 for mounting the pump 16 and filter 18 thereon.
  • the support structure 22 defines a housing 30 which is substantially circular in cross section.
  • the support portion 26 is disposed at or near a lower end of the support structure 22 and the attachment portion 24 is disposed at or near the upper end.
  • the support portion 26, including the fuel pump 16 and fuel filter 18, is located near or at a lower surface of the fuel tank 12 to ensure the fuel pump 16 or strainer 64 remains submerged in low levels of fuel, for reasons known in the art.
  • the support structure 22 comprises a housing 30 of circular cross section having a longitudinal axis (54, as shown in Figure 3 ), which extends from the attachment portion 24 to the support portion 26.
  • the housing 30 is open at the upper end defining a housing opening 36.
  • the support portion 26 includes two receptacles 28, one for each of the fuel pump 16 and the fuel filter 18.
  • the receptacles 28 are substantially cylindrical and receive a substantially cylindrical pump 16 and filter 18.
  • Each receptacle 26 has a longitudinal axis which is substantially parallel with the longitudinal axis 54 of the support structure 22.
  • the pump 16 and filter 18 therefore engage with the receptacles 28 to secure them in position to the support structure 22.
  • a clip 27 or other suitable means may also secure the pump 16 and/or filter 18 within each receptacle 28.
  • the receptacles 28 are integral with the support structure 22 ensuring simple and inexpensive manufacture.
  • the support structure 22 including the support portion 26 may be injection moulded, for example.
  • the attachment portion 24 at the upper end of the support structure 22 includes a flange 34.
  • the flange 34 surrounds the housing opening 36 and is perpendicularly orientated relative to the axis 54 of the support structure 22.
  • the flange 34 comprises a plurality of holes 38 which correspond to holes 40 around the access opening 14 in the fuel tank 12 to provide means to clamp the support structure 22 to the fuel tank 12.
  • the holes 40 in the fuel tank 12 may be threaded.
  • the flange 34 also comprises one or more holes 42 to allow tubing 44 and/or electrical wire 50 to pass, e.g. from/to the fuel pump 16, fuel filter 18, and fuel level sensor 20. Suitable fixings 52 may secure the wire 50 or tubing 44 to the support structure 22.
  • a method of assembling a fuel tank having a small access opening including a fuel pumping and level detection assembly 10 according to the present invention will now be described.
  • the fuel pump 16 and fuel filter 18 are first mounted in the corresponding receptacles 28 on the support portion 26.
  • the tubing 44 and/or electrical wire 50 are secured to the support structure 22 by the fixings 52.
  • the support structure 22 is then inserted substantially perpendicularly into the fuel tank 12 relative to the access opening 14 in a direction (indicated by arrow 55) substantially parallel to the longitudinal axis 54 of the support structure 22.
  • the support structure 22 including the fuel pump 16 and fuel filter 18 conveniently form a sub-assembly having outer limits, below the attachment portion 24, which are within those of the access opening 14 of the fuel tank 12.
  • the support structure 22 is then rotated about its longitudinal axis 54 to position the fuel pump 16 and fuel filter 18 in a desired position in the bottom of the fuel tank 12.
  • the support structure 22 may then be secured to the fuel tank 12 by clamping the flange 34, which is conveniently perpendicularly orientated to the support structure axis 54, to a flat portion 56 surrounding the access opening 14 of the fuel tank 12 using bolts (not shown) corresponding to the plurality of threaded holes 40 in the fuel tank 12.
  • a fuel sensor 20 having an elongate sensor body 21 is then slidably inserted into the support structure 22 to engage with, and be guided by, the housing 30.
  • the sensor 20 is slidably inserted into the housing 30 along the longitudinal axis 54 of the housing 30.
  • the sensor 20 is mounted in the support structure 22 and shares the same longitudinal axis 54 as the housing 30 of the support structure 22.
  • the sensor 20 extends from the attachment portion 24 to the support portion 26.
  • the sensor 20 may then be secured in the support structure 22 by suitable means.
  • the sensor 20 may be secured into the support structure 22 by a cover (not shown) which fits over the upper end of the sensor 20 and corresponds to a threaded lip 60 on the flange 34 to clamp the sensor 20 in the support structure 22.
  • a clamping plate (not shown) may be used to clamp the sensor 20 and attachment portion 24 to the fuel tank 12.
  • the outer surface of the sensor body 21 may simply engage with an inner surface of the support structure 22 to locate and secure the sensor 20 in position.
  • the housing 30 may have slots 32 which corresponding protrusions (not shown) on the sensor body 21 engage with.
  • the sensor 20 may screw into a portion of the support structure 22.
  • the sensor 20 When inserted within the support structure 22, the sensor 20 provides additional strength, stiffness and rigidity to the support structure 22 and, in particular, prevents the support portion 26, including the fuel pump 16 and fuel filter 18, from excessive oscillation during use.
  • the support portion 26 may also extend to interface with the bottom of the fuel tank 12 to provide further stability and rigidity to the support structure 22.
  • FIG. 4 shows the fuel pumping and level detection assembly 10 installed in the fuel tank 12.
  • the sensor 20 is electrically connected to its source via a suitable connector 45 disposed on the sensor 20 and the tubing 44 and electrical wire 50 are also connected accordingly.
  • Figures 5 and 6 show the elongate sensor 20 in situ within the support structure 22 forming the assembly 10 when installed within the fuel tank 12.
  • other components e.g. a pressure regulator 46
  • a third receptacle or other suitable means e.g. clips 48.
  • the clips 48 may be integral with the support structure 22.
  • the elongate sensor 20 and housing 30 of the support structure 22 are suitably sized and shaped to allow the elongate sensor 20 to engage with and be guided by the support structure 22 when slidably inserted along the longitudinal axis 54 of the support structure 22 during assembly of the fuel pumping and level detection assembly 10.
  • This also provides a compact sub-assembly which can be easily inserted substantially perpendicularly into the access opening 14 of a fuel tank 12 requiring no inconvenient angular manipulation, particularly where the access opening 14 of the fuel tank 12 is small.
  • the elongate sensor 20 also provides the support structure 22 with a form of backbone, thereby offering the support structure 22 with additional strength, adequate stiffness in at least the horizontal direction, and rigidity to prevent the support structure 22, particularly the support portion 26 including the fuel pump 16 and fuel filter 18, oscillating excessively, particularly during use within the fuel tank 12.

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)
  • Telephone Function (AREA)
  • Fuel-Injection Apparatus (AREA)
EP07121357A 2007-11-22 2007-11-22 Treibstoff Modul Not-in-force EP2063099B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT07121357T ATE496214T1 (de) 2007-11-22 2007-11-22 Treibstoff modul
EP07121357A EP2063099B1 (de) 2007-11-22 2007-11-22 Treibstoff Modul
DE602007012120T DE602007012120D1 (de) 2007-11-22 2007-11-22 Treibstoff Modul

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07121357A EP2063099B1 (de) 2007-11-22 2007-11-22 Treibstoff Modul

Publications (2)

Publication Number Publication Date
EP2063099A1 true EP2063099A1 (de) 2009-05-27
EP2063099B1 EP2063099B1 (de) 2011-01-19

Family

ID=39365629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07121357A Not-in-force EP2063099B1 (de) 2007-11-22 2007-11-22 Treibstoff Modul

Country Status (3)

Country Link
EP (1) EP2063099B1 (de)
AT (1) ATE496214T1 (de)
DE (1) DE602007012120D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466106A3 (de) * 2010-12-17 2016-08-10 Continental Automotive GmbH Kraftstoff-Fördereinheit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0947369A1 (de) * 1998-04-02 1999-10-06 Bitron France Kraftstoffpumpenanordnung und mit solcher Anordnung versehener Kraftfahrzeugtank
US20010001963A1 (en) * 1998-03-12 2001-05-31 Toyo Roki Seizo Kabushiki Kaisha, Shizuoka-Ken, Japan Fuel supplying apparatus
DE10324800A1 (de) * 2002-05-31 2004-01-08 TI Group Automotive Systems, L.L.C., (n.d.Ges.d. Staates Delaware), Warren Steuerung der elektrostatischen Ladung für im Tank angeordnete Module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010001963A1 (en) * 1998-03-12 2001-05-31 Toyo Roki Seizo Kabushiki Kaisha, Shizuoka-Ken, Japan Fuel supplying apparatus
EP0947369A1 (de) * 1998-04-02 1999-10-06 Bitron France Kraftstoffpumpenanordnung und mit solcher Anordnung versehener Kraftfahrzeugtank
DE10324800A1 (de) * 2002-05-31 2004-01-08 TI Group Automotive Systems, L.L.C., (n.d.Ges.d. Staates Delaware), Warren Steuerung der elektrostatischen Ladung für im Tank angeordnete Module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466106A3 (de) * 2010-12-17 2016-08-10 Continental Automotive GmbH Kraftstoff-Fördereinheit

Also Published As

Publication number Publication date
DE602007012120D1 (de) 2011-03-03
EP2063099B1 (de) 2011-01-19
ATE496214T1 (de) 2011-02-15

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