EP0965748A1 - Kraftstoffmess- und Druckbeaufschlagungssystem für Fahrzeugkraftstoffbehälter und Behälter damit ausgerüstet - Google Patents

Kraftstoffmess- und Druckbeaufschlagungssystem für Fahrzeugkraftstoffbehälter und Behälter damit ausgerüstet Download PDF

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Publication number
EP0965748A1
EP0965748A1 EP99401451A EP99401451A EP0965748A1 EP 0965748 A1 EP0965748 A1 EP 0965748A1 EP 99401451 A EP99401451 A EP 99401451A EP 99401451 A EP99401451 A EP 99401451A EP 0965748 A1 EP0965748 A1 EP 0965748A1
Authority
EP
European Patent Office
Prior art keywords
assembly
gauging
base
guide
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
EP99401451A
Other languages
English (en)
French (fr)
Other versions
EP0965748B1 (de
Inventor
Frédéric Tissot
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.)
Marwal Systems SAS
Original Assignee
Marwal Systems SAS
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 Marwal Systems SAS filed Critical Marwal Systems SAS
Publication of EP0965748A1 publication Critical patent/EP0965748A1/de
Application granted granted Critical
Publication of EP0965748B1 publication Critical patent/EP0965748B1/de
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
    • F02M37/103—Mounting pumps on fuel tanks

Definitions

  • the present invention relates to the field of sets of gauging and drawing fuel from a vehicle tank automobile.
  • the present invention relates to means support of a fuel gauging and drawing assembly with respect to to a base intended to be fixed to a wall of the tank.
  • FIGS. 1 and 2 the means for translational guidance and for stress on the gauging and drawing assembly 20, are referenced 40.
  • the Applicant has found that this provision does not not always satisfactory, especially when the support base 30 is not fixed on a horizontal upper wall of the tank, but on an inclined wall. Indeed in this case the set of gauging and drawing 20 may not be properly pressed against the bottom 12 of the tank, as seen for example in Figure 2. Also in this case the point of contact on the bottom 12 of the tank depends both on the relative inclination, itself fluctuating, between the support wall of the base 30 and the bottom 12 of the tank, and the indexing of the base 30 on its support wall, that is to say of the angular position of this base 30 relative to its support wall around the axis of translation of the assembly of gauging and drawing.
  • the present invention now aims to propose again means with higher performance than the devices known prior.
  • the object of the present invention is in particular to provide means allowing reliable gauging and drawing whatever the inclination of the tank support wall which carries the base of this gauging and drawing assembly, and whatever the deformations from the bottom of the tank.
  • a fuel gauging and drawing system comprising a support base intended to be fixed on a tank wall and a gauging and drawing assembly mounted to displacement on the base support and biased towards the bottom of the tank, relative to this base, characterized in that the connecting means between the support base and the set of gauging and drawing includes at least two guide assemblies allowing one a translation and a relative swiveling and the other a translation and a displacement in a plane passing through the axis of associated translation.
  • the above-mentioned deflection plan also passes through the axis of translation of the first guide assembly.
  • the present invention also relates to the tanks thus equipped.
  • the gauging assembly and drawing 120 comprises a pump and a level detection means fuel in the tank, for example float operated, while that the support base 130 comprises a plate 132 adapted to be fixed tightly on a wall of the tank and which is crossed on the one hand by pipes connected to the pump and on the other hand by connections connected to the level detection means.
  • the support base 130 is provided with two chambers 140, 150 which open on its lower surface, in direction of the whole 120.
  • One 150 of the two chambers has a circular cross section of revolution and constant over its entire length.
  • the other chamber 140 has an oblong section and constant over its entire length.
  • this chamber 140 is delimited by two circular sectors 141, 142 interconnected by two flats 143, 144 parallel to each other.
  • these two flats 143, 144 are parallel to the plane defined by the axes 145, 155 of the two chambers 140, 150.
  • the drawing assembly 120 is in turn provided at its top with two drums 122 and 124 adapted to be engaged respectively in the rooms 140 and 150.
  • each of the drums 122, 124 is provided with a protrusion 123, 125 in the form of a spherical cap, near its upper end.
  • the cross section of the drums 122, 124 is less than that of the rooms 140, 150.
  • the outgrowth 125 has a diameter complementary to the diameter of chamber 150.
  • the projection 125 and the barrel 124 associated are susceptible of translation inside the chamber 150 along the axis of this, in a generally vertical direction and / or of a swiveling by relation to this around the center of the outgrowth 125.
  • the outgrowth 123 has a diameter complementary to the distance separating the two flats 143 and 144.
  • the protrusion 123 and the barrel 122 associates are susceptible of translation inside the chamber 140 and / or a deflection relative thereto transversely to the axis 145 and parallel to the flats 143, 144. Therefore the defined cooperation between the ball joint 123 and the chamber 140 ensures indexing of the assembly 120 relative to the base 130.
  • This guide structure allows a precise guidance of the assembly 120 allowing permanent support of this the latter by its lower surface, on the bottom of the tank, whatever the deformations of this bottom (rotation and / or translation) and / or its inclination relative to the wall of the tank which carries the base 130, as we have shown schematically in Figure 6.
  • drums 122, 124 are hollow and receive descending columns 146, 156 secured to the bottom of the rooms 140, 150 and centered on them.
  • These columns 146, 156 serve as central support for spiral springs 147, 157 interposed between the base 130 and the assembly 120, to request this last towards the bottom of the tank.
  • the springs 147, 157 are supported respectively on the bottom of chambers 140, 150 and on recesses 148, 158 formed inside the barrels 122, 124.
  • FIG. 5 illustrates an alternative embodiment according to which the columns 146, 156 integral with the base 130 and serving to guide the springs 147, 157 are replaced by risers 1460, 1560 integral with the top of the barrels 122, 124, and emerging beyond the spherical protuberances 123, 125, to ensure the same function of spring guide 147, 157.
  • the above-mentioned columns 146, 156 and 1460, 1560 are tapered, tapered away from their support, so as not to disturb the aforementioned relative displacement between the base 130 and the assembly 120.
  • the device according to the present invention offers in particular the following advantages.
  • the device according to the present invention makes it possible to maintain an indexing of the assembly 120 relative to the support base 130.
  • the present invention makes it possible to precisely control the path of the gauging float and avoid any collision of this float with the tank walls. This is especially important with tanks exploited nowadays because these tanks often have forms complexes adapted to best occupy the space available in vehicle infrastructure.
  • the present invention also makes it possible to facilitate the mounting of gauging and drawing devices, since it allows mounting separately and successively the gauging and drawing assembly 120 and the base 130.
  • the ball joint 123 and the chamber 140 associated could be replaced by a straight central guide 1400 integral with one of the assembly 120 or the base 130 and defining the direction of travel allowed and two lateral bearing surfaces 1230, for example in the form of spherical caps integral with each other the base 130 or of the assembly 120 and resting on said guide 1400, as shown schematically in Figure 7.
  • the management of authorized travel may not be parallel to the plane defined by the axes rooms 140, 150, but inclined relative to this plane.
  • At least one of the guide assemblies can define a hydraulic connection between the gauging assembly 120 and the support base 130.
  • This hydraulic connection is preferably defined by the assembly of guide which ensures translation and relative swiveling.
  • a hollow tube 156 secured to the support base 130 and which plunges into a tank 124 integral with the gauging assembly 120.
  • the internal volume of tubing 156 communicates with the internal volume of the fut 124.
  • the geometry of the upper end of fut 124 is suitable for ensure translation and relative swiveling relative to the pipe 156.
  • It sealing means are also provided, such as an O-ring 170, preferably with radial compression, between tubing 156 and was 124. This seal 170 is preferably provided as close as possible to the swiveling center.
  • Such a hydraulic connection can be used for example for deliver fuel from a pump located in a tank to injectors or to a carburetor.

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)
EP19990401451 1998-06-16 1999-06-14 Kraftstoffmess- und Entnahmesystem für Fahrzeugkraftstoffbehälter und damit ausgerüsteter Behälter Expired - Lifetime EP0965748B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807575 1998-06-16
FR9807575A FR2779773B1 (fr) 1998-06-16 1998-06-16 Systeme de jaugeage et de puisage de carburant pour reservoir de vehicule automobile et reservoir ainsi equipe

Publications (2)

Publication Number Publication Date
EP0965748A1 true EP0965748A1 (de) 1999-12-22
EP0965748B1 EP0965748B1 (de) 2003-01-29

Family

ID=9527447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990401451 Expired - Lifetime EP0965748B1 (de) 1998-06-16 1999-06-14 Kraftstoffmess- und Entnahmesystem für Fahrzeugkraftstoffbehälter und damit ausgerüsteter Behälter

Country Status (3)

Country Link
EP (1) EP0965748B1 (de)
DE (1) DE69905097T2 (de)
FR (1) FR2779773B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009040181A1 (de) * 2007-09-21 2009-04-02 Robert Bosch Gmbh Kraftstofffördermodul
DE10228760B4 (de) 2001-06-29 2019-05-16 Denso Corporation Kraftstoffzufuhrvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750081A1 (de) * 1977-11-09 1979-05-10 Rau Swf Autozubehoer Brennstoffoerderaggregat
EP0297256A2 (de) * 1987-07-03 1989-01-04 Pierburg Gmbh Brennstoffördereinheit
EP0459556A1 (de) * 1990-06-01 1991-12-04 General Motors Corporation Modulare Kraftstoffördereinrichtung
EP0705971A1 (de) * 1994-10-04 1996-04-10 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs
US5522425A (en) * 1993-10-28 1996-06-04 Bayerische Motoren Werke Ag Delivery unit with fuel tank level transmitter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750081A1 (de) * 1977-11-09 1979-05-10 Rau Swf Autozubehoer Brennstoffoerderaggregat
EP0297256A2 (de) * 1987-07-03 1989-01-04 Pierburg Gmbh Brennstoffördereinheit
EP0459556A1 (de) * 1990-06-01 1991-12-04 General Motors Corporation Modulare Kraftstoffördereinrichtung
US5522425A (en) * 1993-10-28 1996-06-04 Bayerische Motoren Werke Ag Delivery unit with fuel tank level transmitter
EP0705971A1 (de) * 1994-10-04 1996-04-10 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10228760B4 (de) 2001-06-29 2019-05-16 Denso Corporation Kraftstoffzufuhrvorrichtung
WO2009040181A1 (de) * 2007-09-21 2009-04-02 Robert Bosch Gmbh Kraftstofffördermodul
US8353422B2 (en) 2007-09-21 2013-01-15 Robert Bosch Gmbh Fuel delivery module

Also Published As

Publication number Publication date
FR2779773A1 (fr) 1999-12-17
FR2779773B1 (fr) 2000-09-01
DE69905097D1 (de) 2003-03-06
DE69905097T2 (de) 2003-10-09
EP0965748B1 (de) 2003-01-29

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