WO2015095938A1 - Unité de distribution de carburant - Google Patents

Unité de distribution de carburant Download PDF

Info

Publication number
WO2015095938A1
WO2015095938A1 PCT/BR2013/000604 BR2013000604W WO2015095938A1 WO 2015095938 A1 WO2015095938 A1 WO 2015095938A1 BR 2013000604 W BR2013000604 W BR 2013000604W WO 2015095938 A1 WO2015095938 A1 WO 2015095938A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
deformable element
locking
closure
dispensing unit
Prior art date
Application number
PCT/BR2013/000604
Other languages
English (en)
Portuguese (pt)
Inventor
Tiago CARRIL PUIG
Antonio de Jesus RUIZ
Original Assignee
Robert Bosch Limitada
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 Limitada filed Critical Robert Bosch Limitada
Priority to CN201380081999.0A priority Critical patent/CN106232976A/zh
Priority to PCT/BR2013/000604 priority patent/WO2015095938A1/fr
Publication of WO2015095938A1 publication Critical patent/WO2015095938A1/fr
Priority to HK17105904.5A priority patent/HK1232276A1/zh

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
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • 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 a unit for transporting fuel from a fuel tank to an internal combustion engine with a filler container and a support housing attached to the filler container. To restrict relative movements between the support housing and the filling container these are connected to each other by means of a locking closure. More specifically, the present invention relates to the arrangement and manner of securing such a locking closure between the pump support housing and the fuel transport device filler container.
  • a fuel supply system for an internal combustion engine for vehicles includes a number of elements.
  • a fuel pump pumps fuel from a fuel tank to an internal combustion engine.
  • a filler tank is installed inside the fuel tank to ensure a minimum fuel level for the pump.
  • the filling container together with a support housing forms a fuel distribution unit.
  • the support housing has among its functions, support the pump and dampen inherent vibrations of its operation.
  • fasteners such as locking locks or welded joints are used, the former being the most common.
  • Prior art US6854451 shows a locking latch of a fuel dispensing unit made of plastics material where the horizontal displacement of a first part of the closure allows coupling to a second part of the closure, providing locking between the two. parts.
  • the first part of the closure is secured to the support housing, and the second part of the closure is attached to the filling container.
  • This locking closure is a snap-fit snap closure and has the particularity that it has no negative faces on the first and second part of the closure and therefore no drawers need to be inserted into the mold for injection of polymer for its manufacture.
  • the first part of the closure is formed by an extension of the support housing that has resilience suitable for the performance of its function and extends outside the filling container and below the liquid level contained in this container, having its main parallel dimension. to the vertical axis that crosses the center of the filling container.
  • the main internal stress responsible for the horizontal displacement of the first closure part is a twist about a horizontal axis, which tangents the support housing at the height where it meets the first closure
  • the prior art document US0192922 shows a locking latch of a fuel dispensing unit comprising a deformable element attached to the support housing, a first closure portion attached to the deformable element and a second closure portion attached to the container. Filling The horizontal displacement of the deformable element allows coupling of the first closing part to the second closing part, promoting locking of the unit.
  • This locking closure is a snap-fit snap closure and features a deformable, essentially upright main steering element. This element deforms under torsional stresses around two horizontal axes, one axis tangent to the support housing and another axis parallel to the first - farthest from the percent of the filling container.
  • WO2009017685A1 shows a locking latch of a fuel dispensing unit made of plastics material, where the horizontal displacement of a second part of the closure, which part is fixed to the filling container, allows coupling to a first part of the lock fastens to the support housing, promoting the locking between the two parts.
  • This locking closure is a snap-fit snap closure and has the peculiarities of: having negative faces; and have no parts forming capillaries outside the container reservoir due to the fact that the ends of the support housing extend into the filling container, thus preventing siphoning.
  • WO2009017685A1 has negative faces on the first and second parts of the locking closure, which leads to the need to insert drawers into the polymer injection mold for manufacture of the dispensing unit.
  • the object of the present invention is a fuel dispensing unit and a locking lock for the same.
  • the dispensing unit comprises a filling container and a support housing.
  • the container and the housing are interlocked by the positive union of a first and a second locking part, fixed respectively to the container and the housing.
  • the first closure portion is secured to the container by a deformable element allowing its horizontal displacement. From this horizontal displacement the second closing part is allowed to occupy the space below the first closing part. By returning to its original position the first locking part promotes the locking of the two parts, and consecutively the locking of the unit formed by the filling container and the support housing.
  • the fuel distribution unit is mounted inside the fuel tank where vertical space is restricted. It is noted that the deformable element has an essentially horizontal orientation causing the closure parts to be arranged to minimize the use of vertical space. This arrangement, which will be described herein, presents an important improvement over the known elements of the prior art.
  • both closure parts and the filling container are free of negative faces when viewed from top or bottom.
  • This particular feature allows polymer injection fabrication to dispense with the use of complementary mold drawers, requiring only a split mold in the case of the filling container. This feature reduces material waste, energy consumption and especially the manufacturing time of the filling container, proving to be an important advantage.
  • the support housing is fitted internally to the filling container. This feature causes the invention not to exhibit capillary communication outside the internal volume of the container extending below the fuel level. This prevents drainage of the filling container by siphoning, ensuring the main functionality of the invention of preserving the fuel level in the pump suction section above a desired minimum level.
  • the present invention concomitantly solves the problems of the state of the art of minimizing the use of vertical space and preventing siphoning through the locking closure window. Moreover, it also has its simplified manufacturing.
  • Figure 1 is a front view showing a fuel dispensing unit of the present invention
  • Figure 2 is a top view of a filler container of the fuel dispensing unit of the present invention
  • Figure 3 is a front view of a fuel distribution unit support housing of the present invention.
  • Figure 4 is a perspective view of a detail of the filler container of a second fuel distribution unit embodiment of the present invention.
  • Figure 5 is a perspective view of a detail of the filling container of a third fuel distribution unit embodiment of the present invention.
  • the fuel dispensing unit 10 has, among other elements, a filling container 1, a support housing 2, a deformable element 3. Such a unit 10 further has a first closing part 8, and a second closing part 9, which are not displayed in the same picture.
  • Filler container 1 is a fuel sub-reservoir positioned within a fuel tank and is responsible for maintaining a minimum level of liquid in the suction section of fuel pump 100. In order to ensure that the pump works without admitting gases or vapors, as these compressible fluids cause damage to the operation and integrity of the fuel pump 100.
  • the filling container 1 also has the function of supporting and securing the support housing 2.
  • the support housing 2 has the main function of supporting the fuel pump 100.
  • the main deformable element 3 is fixed and is part of the filling container 1. By means of horizontal displacement of the main deformable element 3 coupling and locking between the filler container 1 and the support housing 2.
  • the filler container 1 has a bottom 12 and a cylindrical geometry side wall of circular section and the present invention has any other type of cross section.
  • the internal volume 14 comprised between the bottom 12 and the side wall 11 is the space where the fuel is stored in the fuel distribution unit 10.
  • the filling container 1 secure and support the support housing 2, the filling container 1 having an upper opening 13 through which a lower part 21 of the support housing is introduced into its internal volume 14. 2.
  • a plurality of recesses 4 are arranged in the filling container 1, three of them, as shown in Figure 2.
  • the recesses 4 are projected into the filling container 1 and extend from the lower end 5 to the upper end 6 of the container forming surfaces parallel to the sidewall 11 of the filling container 1.
  • a plurality of deformable elements 3 are attached to side wall 11 in number equal to recesses 4.
  • the main deformable element 3 is a continuation of the cut-out side wall 11 overlying recess 4 and is located just below the upper end. 6.
  • the horizontal main dimension of the main deformable element 3 is parallel to the surface of the sidewall 11 and is noticeably larger than its vertical dimension and thickness.
  • the essentially horizontal arrangement of the main deformable element 3 is a characteristic advantage of the present invention, since the fuel dispensing unit 10 mounted within a fuel tank, there is a restriction on the use of vertical space.
  • the locking device requires less use of the vertical space, allowing the internal volume 14 of the filler 1 to be increased, there is an improvement in the main function performance of reserving fuel at a minimum level to the suction section of the filler. fuel pump.
  • the present invention guarantees the integrity and good operation of the pump with greater reliability compared to the state of the art.
  • the main deformable element 3 Due to its constructive form the main deformable element 3 is susceptible to greater elastic deformations compared to experimental deformations.
  • the lateral deformations of the main deformable element 3 are mainly related to the forces that generate torsion about a vertical axis in the requested section 7, and the linear displacement related to this torsion is substantially in the horizontal direction.
  • a first locking part 8 is located between the main deformable element 3 and its respective recess 4, said first locking part 8 being fixed to the deformable element 3.
  • Figure 3 shows the support housing 2.
  • a support flange 23 of the support housing 2 rests on the support surface 16 of the filling container 1. It is up to the support flange 23 and the support surface 16 to withstand stresses. vertical weights of the support housing 2 and the elements mounted on the support housing, in particular the fuel pump 100.
  • the lower part 21 of the support housing 2 extends into the inner volume 14 of the filling container 1, and the upper part 22 of the support housing 2 extends above the upper end 6 of the filling container 1 .
  • a second locking part 9 is located just below the upper part 22 of the support housing 2. When the second closing part 9 is inserted into the slot 15 locking occurs between the support housing 2 and the filling container 1.
  • first and second locking parts 8, 9 are integral parts, differing from locking closures, in which one locking part is a male element and the other closing part is a female element.
  • a male-female locking lock the male locking portion is inserted into the window of the female locking portion promoting locking.
  • the window of the female locking part is a leak-prone location.
  • the arrangement of the locking closure of the present invention rules out the possibility of leakage, ensuring reliable operation of the fuel dispensing unit 10, object of the present invention.
  • first and second closure parts 8, 9 if viewed from top and bottom views do not have negative faces.
  • the object of the invention as well as the state of the art, polymer injection manufacturing, it is necessary to use a mold.
  • the absence of negative faces simplifies the injection mold as it eliminates the need for complementary drawers to form such faces. In this way it is possible to reduce the manufacturing cost of the fuel distribution unit 10. Therefore, the simplicity of injection fabrication is a characteristic advantage of the present invention.
  • FIG. 4 A schematic view of a second embodiment of the filling container 1 is shown in FIG. 4.
  • the main deformable element 3 is an extension of the sidewall 11 through two requested sections 7.
  • the deformable element exhibits greater rigidity while maintaining the features of minimizing the use of vertical space and having no negative faces.
  • FIG. 5 Also shown in Figure 5 is a schematic view of a third embodiment of the filling container.
  • the main deformable element 3 is at this time secured to the side wall 11 by two requested sections 7. These two requested deformed sections 7 in the undeformed position position the main deformable element 3 offset from the sidewall plane 11 away from the internal volume 14.
  • the deformable element presents intermediate stiffness compared to the dispositions of figures 2 and 4, keeping the characteristics of minimizing the use of vertical space and of not having negative faces.

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

La présente invention concerne un dispositif de transfert de carburant depuis un réservoir de carburant jusqu'à un moteur à combustion interne, comprenant un réceptacle de remplissage (1) et un boîtier de support (2) fixé au réceptacle de remplissage (1). Cette fixation est obtenue par utilisation d'une fermeture de blocage. Une première partie (8) de fermeture de blocage se déplace horizontalement et est fixée à un élément déformable (3). Une seconde partie (9) de fermeture est accouplée à la première partie (8) de fermeture et contribue au blocage. Lesdites première et seconde parties (8, 9) de fermeture, conjointement avec l'élément déformable principal (3), occupent un minimum de l'espace vertical restreint à l'intérieur du réservoir de carburant. Le boîtier de support (2) est accouplé intérieurement au réceptacle de remplissage (1) de manière à rendre vaine toute tentative de vider le réceptacle par siphonnage. L'agencement de cette fermeture de blocage présente des caractéristiques optimales pour la fabrication par injection de polymères compte tenu de l'absence de faces évidées. L'invention comprend des variantes en termes de géométrie, l'élément déformable (3) pouvant être plus ou moins rigide.
PCT/BR2013/000604 2013-12-27 2013-12-27 Unité de distribution de carburant WO2015095938A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201380081999.0A CN106232976A (zh) 2013-12-27 2013-12-27 燃料分配单元
PCT/BR2013/000604 WO2015095938A1 (fr) 2013-12-27 2013-12-27 Unité de distribution de carburant
HK17105904.5A HK1232276A1 (zh) 2013-12-27 2017-06-14 燃料分配單元

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000604 WO2015095938A1 (fr) 2013-12-27 2013-12-27 Unité de distribution de carburant

Publications (1)

Publication Number Publication Date
WO2015095938A1 true WO2015095938A1 (fr) 2015-07-02

Family

ID=53477230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2013/000604 WO2015095938A1 (fr) 2013-12-27 2013-12-27 Unité de distribution de carburant

Country Status (3)

Country Link
CN (1) CN106232976A (fr)
HK (1) HK1232276A1 (fr)
WO (1) WO2015095938A1 (fr)

Citations (3)

* 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
GB2043165A (en) * 1979-02-19 1980-10-01 Saab Scania Ab Arrangement for attaching a tank fitting to a fuel tank
DE3602135C1 (de) * 1986-01-24 1992-07-02 Bayerische Motoren Werke Ag Lagerung einer Kraftstoffpumpe im Kraftstoffvorratsbehaelter eines Kraftfahrzeuges

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3372161B2 (ja) * 1996-03-13 2003-01-27 愛三工業株式会社 内燃機関の燃料供給装置
CN2341914Y (zh) * 1998-08-07 1999-10-06 徐明堂 可组装于罐体开口上的罐盖
DE29922325U1 (de) * 1999-12-21 2001-04-26 Bosch Gmbh Robert Kraftstofffördermodul für ein Kraftfahrzeug
CA2426964A1 (fr) * 2000-10-27 2002-05-02 Tesma International Inc. Bague de retenue et plaque de recouvrement pour reservoir a essence
FR2821570B1 (fr) * 2001-03-01 2003-11-07 Snecma Moteurs Carter etanche a fermeture quart de tour
JP4243845B2 (ja) * 2002-11-28 2009-03-25 株式会社デンソー 燃料供給装置
RU2241849C2 (ru) * 2003-06-04 2004-12-10 Общество с ограниченной ответственностью Завод электроагрегатного машиностроения "СЭПО-ЗЭМ" акционерного общества "Саратовское электроагрегатное производственное объединение" Модуль топливоподающий для автомобиля
KR20140021064A (ko) * 2011-10-13 2014-02-19 미쓰비시덴키 가부시키가이샤 연료펌프

Patent Citations (3)

* 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
GB2043165A (en) * 1979-02-19 1980-10-01 Saab Scania Ab Arrangement for attaching a tank fitting to a fuel tank
DE3602135C1 (de) * 1986-01-24 1992-07-02 Bayerische Motoren Werke Ag Lagerung einer Kraftstoffpumpe im Kraftstoffvorratsbehaelter eines Kraftfahrzeuges

Also Published As

Publication number Publication date
HK1232276A1 (zh) 2018-01-05
CN106232976A (zh) 2016-12-14

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