WO2015146336A1 - Dispositif d'alimentation en carburant - Google Patents

Dispositif d'alimentation en carburant Download PDF

Info

Publication number
WO2015146336A1
WO2015146336A1 PCT/JP2015/053828 JP2015053828W WO2015146336A1 WO 2015146336 A1 WO2015146336 A1 WO 2015146336A1 JP 2015053828 W JP2015053828 W JP 2015053828W WO 2015146336 A1 WO2015146336 A1 WO 2015146336A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
wall
elastic piece
pump
housing
Prior art date
Application number
PCT/JP2015/053828
Other languages
English (en)
Japanese (ja)
Inventor
敏彦 内藤
Original Assignee
株式会社ケーヒン
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 株式会社ケーヒン filed Critical 株式会社ケーヒン
Priority to CN201580015358.4A priority Critical patent/CN106103965B/zh
Priority to BR112016019051-3A priority patent/BR112016019051B1/pt
Publication of WO2015146336A1 publication Critical patent/WO2015146336A1/fr

Links

Images

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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0029—Pressure regulator in the low pressure fuel system
    • 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
    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps
    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50—Filters arranged in or on fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03243—Fuel tanks characterised by special pumps, the mounting thereof

Definitions

  • the present invention mainly relates to a fuel supply device that supplies fuel to a fuel injection valve of an engine.
  • the first housing includes a base portion to be closed and a pump holding wall extending from the base portion toward the inside of the fuel tank.
  • the first housing holds the fuel pump in cooperation with the pump holding wall;
  • the present invention relates to an improvement in a fuel supply device in which a second housing having a fuel pipe for guiding fuel discharged from the fuel pump to the fuel take-out pipe is connected via a snap-fit mechanism.
  • the snap-fit mechanism includes an elastic piece extending from the tip of the second housing toward the mounting flange, a locking hole provided at the tip of the elastic piece, and a pump holding A locking claw that projects from the outer surface of the wall and engages with the locking hole by the elastic force of the elastic piece.
  • the present invention has been made in view of such circumstances, and provides the fuel supply device that can easily release the engagement state of the snap-fit mechanism without being obstructed by the mounting flange. Objective.
  • the present invention has a base part that has a fuel take-out pipe at one end and a mounting flange that is attached to the fuel tank at the other end, and closes the opening of the fuel tank.
  • a first housing has a pump holding wall extending toward the inside of the fuel tank. The first housing holds the fuel pump in cooperation with the pump holding wall, and discharges fuel discharged from the fuel pump from the fuel.
  • a fitting wall that fits on an inner periphery of the pump holding wall is formed in the second housing, An elastic piece extending from the tip of the pump holding wall and in contact with the outer surface of the fitting wall, a locking hole provided at the tip of the elastic piece, and protruding from the outer surface of the fitting wall
  • the snap-fit mechanism is configured by a locking claw that engages with the locking hole by the elastic force of the elastic piece, and the locking claw and the locking hole are formed by bending the elastic piece radially outward.
  • the first feature is that the second housing is provided with a restriction wall for restricting the bending of the elastic piece.
  • the fuel pipe corresponds to an upper descending fuel pipe 28 in an embodiment of the present invention described later.
  • the inner surface of the restriction wall is formed as an inclined surface that is inclined in a direction away from the elastic piece toward the tip of the elastic piece. To do.
  • a fitting wall that fits to the inner periphery of the pump holding wall is formed in the second housing, and extends from the tip of the pump holding wall to contact the outer surface of the fitting wall.
  • a snap-fit mechanism with an elastic piece, a locking hole provided at the tip of the elastic piece, and a locking claw protruding from the outer surface of the fitting wall and engaging the locking hole by the elastic force of the elastic piece Therefore, the tip of the elastic piece is oriented in the direction opposite to the mounting flange. Therefore, the elastic piece is deflected radially outward without being obstructed by the mounting flange, and the snap fit mechanism The engaged state can be released.
  • the first and second housings can be easily separated, which can contribute to improvement in maintainability of the fuel pump and the like.
  • the snap-fit mechanism is provided between the pump holding wall and the fitting wall, so that the increase in the diameter of the fuel supply device can be suppressed.
  • the elastic piece since the bending of the elastic piece is restricted by the restriction wall provided in the second housing, even if the elastic piece is subjected to vibration from the engine or the like, the elastic piece is prevented from being bent radially outward. The engagement state of the snap fit mechanism can be maintained.
  • the elastic piece when the elastic piece is bent radially outward in order to release the engagement of the snap-fit mechanism, the elastic piece can be It will bend smoothly along the inclined inner surface, disperse the stress received by the elastic piece from the regulating wall, ensure its durability, and reduce the operating load that bends the elastic piece. Can do.
  • FIG. 1 is a perspective view of a fuel supply apparatus according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the fuel supply apparatus.
  • FIG. 3 is a view taken in the direction of arrow 3 in FIG.
  • First embodiment) 4 is a cross-sectional view taken along line 4-4 of FIG.
  • First embodiment) 5 is a cross-sectional view taken along line 5-5 of FIG.
  • First embodiment) 6 is a cross-sectional view taken along line 6-6 of FIG.
  • First embodiment 7 is a cross-sectional view taken along line 7-7 of FIG.
  • FIG. 8 is an explanatory view of the insertion procedure of the fuel supply device into the opening of the fuel tank bottom plate.
  • the present invention supplies the fuel in the fuel tank T to the fuel injection valve (not shown) of the engine on the bottom plate Ta (see FIG. 4) of the fuel tank T mounted on the vehicle.
  • the fuel supply device D is attached.
  • the fuel supply device D includes a first housing 1 made of synthetic resin attached to a bottom plate Ta of a fuel tank T, and a second housing made of synthetic resin connected to the first housing 1 and disposed in the fuel tank T. 2 and a fuel pump 4 held between the housings 1 and 2.
  • the first housing 1 has a bottomed cylindrical base having a fuel take-out pipe 5 at the bottom and a mounting flange 6 attached around the opening Tb of the bottom plate Ta of the fuel tank T at the top to close the opening Tb. And a pair of arc-shaped pump holding walls 8 rising from the bottom of the base 7, and an inner peripheral edge of the mounting flange 6 so as to surround the lower part of the pump holding walls 8 to hold the pump
  • An enclosure wall 10 that defines a fuel reservoir 9 between the wall 8 and a lower descending fuel pipe 11 that is in communication with the fuel take-out pipe 5 and rises from the bottom of the base part 7 are formed integrally.
  • the fuel pipe 11 is integrally connected to the inner peripheral portion of the enclosure wall 10.
  • the fuel reservoir 9 receives the fuel in the fuel tank T through the notch 12 (see FIGS. 1 and 2) of the enclosure wall 10.
  • the fuel take-out pipe 5 can supply fuel to a fuel injection valve of an engine (not shown).
  • the pair of pump holding walls 8 are arranged so as to constitute mutually opposite side walls of the cylindrical body, and the fuel pump 4 is fitted on the inner periphery of these pump holding walls 8 from above.
  • a bottom stopper 13 (see FIG. 6) that stands from the bottom of the base portion 7 and supports the bottom of the fuel pump 4 is continuously provided on the lower inner surface of the one pump holding wall 8.
  • the fuel pump 4 has a suction port 15 projecting from its lower end surface, and a T-shaped suction pipe 16 is connected to the suction port 15.
  • the inlet of the suction pipe 16 is accommodated in the fuel reservoir 9.
  • a filter 17 having a circular arc cross section is connected.
  • a vapor discharge pipe 18 for discharging vapor generated in the fuel pump 4 is connected to the lower end surface of the fuel pump 4.
  • the vapor discharge pipe 18 extends upward along the side surface of the fuel pump 4, and a cylindrical filter 19 having an open upper end is attached to an upper end portion thereof.
  • the vapor discharge pipe 18 is integrally provided with a large diameter portion 18a below the cylindrical filter 19, and an orifice 20 is provided in the large diameter portion 18a.
  • the second housing 2 includes a pair of fitting walls 22 having a circular arc cross section, and a discharge port receiving cylinder 23 that connects one side portions of both the fitting walls 22.
  • a cylindrical regulator holding cylinder 24, and a cylindrical reinforcing cylinder 26 that connects the other side portions of the fitting walls 22 while enclosing the regulator holding cylinder 24 through a gap 25 over substantially the entire length thereof;
  • a cover cylinder 29 connected to one side portion of the fuel pipe 28 is integrally formed.
  • the upper descending fuel pipe 28 and the regulator holding cylinder 24 are arranged on both sides of the discharge port receiving cylinder 23, and a communication fuel pipe 30 arranged linearly and horizontally so as to connect these three members 23, 24, 28 is provided. It is formed integrally with the second housing 2.
  • a communication hole 30 a is formed in the communication fuel pipe 30 for communicating the inside of the regulator holding cylinder 24, the discharge port receiving cylinder 23, and the upper descending fuel pipe 28.
  • the opening in the boss 31 of the communication hole 30a from which the core pin is pulled out is closed by a synthetic resin plug 32 having a seal member 33 mounted on the outer periphery.
  • a support plate 35 is formed on the head of the plug body 32, and extends from both ends of the support plate 35 in parallel with the plug body 32 and arranged on both sides of the plug body 32.
  • a pair of elastic hooks 36 extend.
  • the boss 31 has a pair of through-holes 37 through which the pair of elastic hooks 36 can pass, and a locking claw 38 that is located at the back of the through-holes 37 and can be engaged with the elastic hooks 36. Is provided.
  • the elastic hook 36 engages with the locking claw 38.
  • the plug body 32 is fixed to the boss 31 and is held in a state in which the seal member 33 is in close contact with the inner peripheral surface of the communication hole 30a.
  • the elastic hook 36 and the locking claw 38 constitute a second snap fit mechanism 55.
  • the pair of fitting walls 22 are arranged so as to constitute mutually opposite side walls of the cylindrical body, and the lower part thereof is fitted to the outer periphery of the small diameter part 4 a of the upper part of the fuel pump 4. At the same time, it is fitted to the inner periphery of the pump holding wall 8.
  • the pump holding wall 8 and the fitting wall 22 hold the fuel pump 4 in cooperation.
  • the fuel pump 4 has a discharge port 43 protruding from its upper end surface, and this discharge port 43 is fitted to the inner periphery of the discharge port receiving cylinder 23 via a seal member 44. .
  • the upper descending fuel pipe 28 is fitted to the upper end of the lower descending fuel pipe 11 via a seal member 45. Therefore, the fuel discharged from the discharge port 43 of the fuel pump 4 is supplied to the fuel take-out pipe 5 through the upper down fuel pipe 28 and the lower down fuel pipe 11 from the communication hole 30a.
  • the outer cylinder 48a of the pressure regulator 48 is press-fitted into the inner periphery of the regulator holding cylinder 24, and the lower cylinder 48a is fixed by caulking the lower end portion of the regulator holding cylinder 24 inward.
  • the pressure regulator 48 releases the excess pressure of the fuel discharged from the discharge port 43 of the fuel pump 4 into the communication hole 30a into the fuel tank T, and supplies the fuel pressure supplied from the fuel take-out pipe 5 to the fuel injection valve. It is adjusted to a predetermined value.
  • the cover tube 29 is fitted to the outer periphery of the large-diameter portion 18a while covering the tubular filter 19 of the vapor discharge pipe 18.
  • the vapor discharged from the fuel pump 4 to the vapor discharge pipe 18 moves from the cylindrical filter 19 or its upper opening to the cover cylinder 29 and is discharged into the fuel tank T through the orifice 20 of the large diameter portion 18a.
  • the pressure in the vapor discharge pipe 18 becomes negative, the fuel in the fuel tank T flows from the orifice 20 into the cover cylinder 29 to a certain level, is filtered by the cylindrical filter 19 and is sucked into the fuel pump 4. Will be.
  • a liquid level sensor 50 is attached to the tip of the sensor support arm 49, and a swing arm that supports the float 51 floating on the fuel liquid level in the fuel tank T at the tip of the rotor 50a of the liquid level sensor 50. 52 are connected.
  • the swing angle of the arm 52 is transmitted to the liquid level sensor 50, and the liquid level sensor 50 outputs a liquid level signal to a display unit (not shown).
  • the discharge port receiving cylinder 23, the regulator holding cylinder 24, the reinforcing cylinder 26, the upper descending fuel pipe 28 and the cover cylinder 29 are arranged in parallel with the fitting wall 22.
  • the fitting wall 22, the discharge port receiving cylinder 23, the regulator holding cylinder 24, the reinforcing cylinder 26, the upper descending fuel pipe 28, the cover cylinder 29 and the rib 27 can be easily formed by a split mold. Become.
  • the gap 25 between the regulator holding cylinder 24 and the reinforcing cylinder 26 opens both end surfaces of the regulator holding cylinder 24.
  • the waste around the regulator holding cylinder 24, the reinforcing cylinder 26 and the communication fuel pipe 30 is reduced, and the molding failure of the second housing 2 can be eliminated.
  • the holding force of the regulator holding cylinder 24 against the pressure regulator 48 is reinforced by the reinforcing cylinder 26 and the rib 27, and the opening / closing vibration sound of the valve body in the pressure regulator 48 is generated by the gap 25 covering the regulator holding cylinder 24 over substantially the entire length. Effectively absorbed.
  • the air gap 25 allows the fuel in the fuel tank T to flow.
  • the gaps 25 between the plurality of ribs 27 are through holes along the axial direction of the regulator holding cylinder 24. Therefore, not only the rib 27 and the gap 25 can be easily molded, but also the visual line after the molding of the second housing 2 reaches the entire inner surface of the gap 25 and a molding defect can be easily found.
  • the pump holding wall 8 and the fitting wall 22 are connected to each other via a plurality of snap fit mechanisms 55.
  • the snap-fit mechanism 55 will be described next with reference to FIGS. 1 to 3 and FIG.
  • a plurality (a pair in the illustrated example) of elastic pieces 56 that extend upward from the fitting wall 22 while being in contact with the outer surface of the fitting wall 22 are integrally connected to the upper ends of the pair of pump holding walls 8. . Therefore, the two sets of elastic pieces 56 are arranged opposite to each other with the central axis of the fuel pump 4 interposed therebetween, and a locking hole 57 is provided at the upper end portion of each elastic piece 56. Each elastic piece 56 can be bent radially outward against its own elastic force.
  • a plurality of locking claws 58 that can engage with the plurality of locking holes 57 are integrally projected on the outer surface of the fitting wall 22.
  • the lower surface 58a of each locking claw 58 is an inclined surface that is inclined upward in a direction away from the outer surface of the fitting wall 22, and the upper surface 58b is a horizontal surface.
  • the snap fit mechanism 55 is comprised by the above.
  • the fitting wall 22 is fitted to the inner circumference of the pump holding wall 8 and the outer circumference of the fuel pump 4, and the discharge port receiving cylinder 23 is fitted to the outer circumference of the discharge port 43 of the fuel pump 4.
  • each elastic piece 56 has a claw at its upper end.
  • the locking claw 58 and the locking hole 57 can be automatically engaged with each other. Then, the upper edge portion of the locking hole 57 contacts the horizontal surface of the locking claw 58, so that the locking hole 57 is prevented from being detached from the locking claw 58.
  • the first housing 1 and the second housing 2 are connected via the plurality of snap fit mechanisms 55.
  • all the elastic pieces 56 may be bent simultaneously outward in the radial direction to disengage the locking holes 57 from the locking claws 58. 2 can be separated.
  • a pair of arc-shaped regulating walls 60 that are in contact with the outer surface of the intermediate portion of the elastic piece 56 are formed integrally with the second housing 2 in order to restrict the bending of the elastic piece 56 in the radially outward direction. Since the regulating wall 60 in contact with the outer surface of the intermediate portion of the elastic piece 56 is separated downward from the locking claw 58, the elastic piece 56 is allowed to bend outward in the radial direction, and the snap fit mechanism 55 is released. Enable. At that time, one end of the restriction wall 60 is integrally connected to the sensor support arm 49 and the cover tube 29, and an intermediate portion thereof is integrally connected to the one fitting wall 22 via the rib 61. .
  • each regulating wall 60 both end portions thereof are integrally connected to the reinforcing cylinder 26 and the upper descending fuel pipe 28, and an intermediate portion thereof is integrally connected to the other fitting wall 22 via a rib 61.
  • the inner side surface 60a of each regulating wall 60 is formed as a slope inclined so as to go outward in the radial direction.
  • the restriction wall 60 formed in the second housing 2 restricts the elastic piece 56 from bending outward in the radial direction. Therefore, even if the elastic piece 56 receives vibration from the engine or the like, the elastic piece 56 overflows. Therefore, the snap fit mechanism 55 can be maintained in an engaged state. Further, when the elastic piece 56 is bent radially outward in order to release the engagement of the snap fit mechanism 55, the elastic piece 56 follows the inclined inner surface of the regulating wall 60 as compared with the case where there is no inclined surface. Thus, the stress received by the elastic piece 56 from the regulating wall 60 can be dispersed to ensure the durability thereof, and the operation load for bending the elastic piece 56 can be reduced.
  • the plurality of snap fit mechanisms 55 configured as described above are disposed above the enclosure wall 10 that covers the outer periphery of the filter 17 and inside the enclosure wall 10 in plan view. By doing so, the snap fit mechanism 55 can be reduced in diameter without increasing the diameter of the fuel supply device D despite having a relatively large thickness in the radial direction. Therefore, even if the opening Tb of the bottom plate Ta of the fuel tank T has a relatively small diameter, the fuel supply device D can be inserted into the opening Tb.
  • the snap fit mechanism 55 is formed on each of the elastic pieces 56 extending from the upper end of the pump holding wall 8, the elastic pieces 56 and the fitting wall 22, and engages with each other by the elastic force of the elastic pieces 56. Since the engaging hole 57 and the engaging claw 58 are configured, the snap fit mechanism 55 can be prevented from increasing in diameter even at the upper part of the fuel supply device D, and the snap fit mechanism 55 can be engaged and released. Can be easily performed without being obstructed by the surrounding wall 10 or the mounting flange 6.
  • the upper descending fuel pipe 28 and the cover cylinder 29 are arranged between one side of the two sets of elastic pieces 56, and the regulator holding cylinder 24 is arranged between the other side of the two sets of elastic pieces 56. .
  • the dead space between the two sets of elastic pieces 56 can be used for the arrangement of the upper descending fuel pipe 28, the cover cylinder 29, and the regulator holding cylinder 24, and the diameter of the upper part of the fuel supply device D can be reduced. be able to.
  • the upper descending fuel pipe 28, the cover cylinder 29, and the regulator holding cylinder 24 are integrally connected to each other via the restriction wall 60, the strength of the second housing 2 can be increased.
  • the lower descending fuel pipe 11 and the vapor discharge pipe 18 corresponding to the upper descending fuel pipe 28 and the cover cylinder 29, respectively.
  • the protruding portion 4b of the fuel pump 4 is brought into contact with one side of the inner peripheral edge of the opening Tb, and the contact portion raises the fulcrum and the fuel supply device D vertically, and then the fuel supply device. D is pushed up, and the mounting flange 6 is overlapped with the lower surface of the bottom plate Ta and joined.
  • the protruding portion 4b of the fuel pump 4 from between the pair of pump holding walls 8 is arranged on one side of the inner peripheral edge of the opening Tb.
  • the center of the fuel supply device D can be brought as close as possible to one side of the opening Tb, and the fuel supply device D can be easily inserted even when the opening Tb is relatively small.
  • boss 31 and the second snap fit mechanism 55 for fixing the plug body 32 to the boss 31 are arranged adjacent to the base of the sensor support arm 49, so that the boss 31 and the second snap fit mechanism are arranged. 55 does not hinder the insertion of the fuel supply device D into the opening Tb.
  • the upper descending fuel pipe 28 and the cover cylinder 29 are arranged on the opposite side of the fuel pump 4 from the protruding portion 4b with the center of the fuel supply device D interposed therebetween.
  • a chamfer 62 is formed at the corner of the upper end portion of the cylinder 29 opposite to the protruding direction of the sensor support arm 49. Due to the presence of the chamfer 62, when the fuel supply device D is rotated from the inclined posture to the standing posture as described above, the upper descending fuel pipe 28 and the cover cylinder 29 are located on the opening Tb on the side opposite to the fulcrum. It becomes easy to avoid interference with the inner peripheral edge, and even when the opening Tb is relatively small, the fuel supply device D can be more easily inserted.
  • a coupler 63 protruding to the side of the base portion 7 is formed integrally with the lower portion of the base portion 7, and the coupler 63 holds the terminal 64 for the fuel pump 4 and the terminal 65 for the liquid level sensor 50.
  • the base portion 7 of the first housing 1 can be attached to the ceiling plate of the fuel tank T.
  • the locking hole 57 of the snap-fit mechanism 55 can be a bottomed hole instead of a through hole.

Abstract

La présente invention concerne un dispositif d'alimentation en carburant dans lequel une pompe à carburant (4) est maintenue par la paroi de retenue de pompe (8) d'un premier boîtier (1) et la paroi ajustée (22) d'un second boîtier (2), et la paroi de retenue de pompe (8) et la paroi ajustée (22) sont reliées par l'intermédiaire d'un mécanisme d'encliquetage (55). Le mécanisme d'encliquetage (55) est configuré à partir : d'une pièce élastique (56) qui ajuste la paroi ajustée (22) sur la périphérie interne de la paroi de retenue de pompe (8) et qui s'étend à partir de la pointe de la paroi de retenue de pompe (8) et vient en contact avec la surface extérieure de la paroi ajustée (22) ; d'un trou de verrouillage (57) qui est prévu au niveau de la section de pointe de la pièce élastique (56) ; et d'une griffe de verrouillage (58) qui est prévue de manière à faire saillie à partir de la surface extérieure de la paroi ajustée (22) et qui vient en prise avec le trou de verrouillage (57) sous l'effet de la force élastique de la pièce élastique (56). Une paroi de régulation (60) qui régule la flexion de la pièce élastique (56) dans la direction radialement vers l'extérieur est prévue au niveau du second boîtier (2). En conséquence, il est possible de fournir un dispositif d'alimentation en carburant dans lequel l'état d'engrènement d'un mécanisme d'encliquetage peut être facilement libéré sans interférence d'une bride de fixation.
PCT/JP2015/053828 2014-03-28 2015-02-12 Dispositif d'alimentation en carburant WO2015146336A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580015358.4A CN106103965B (zh) 2014-03-28 2015-02-12 燃料供给装置
BR112016019051-3A BR112016019051B1 (pt) 2014-03-28 2015-02-12 Dispositivo de fornecimento de combustível

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014069879A JP6433011B2 (ja) 2014-03-28 2014-03-28 燃料供給装置
JP2014-069879 2014-03-28

Publications (1)

Publication Number Publication Date
WO2015146336A1 true WO2015146336A1 (fr) 2015-10-01

Family

ID=54194874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/053828 WO2015146336A1 (fr) 2014-03-28 2015-02-12 Dispositif d'alimentation en carburant

Country Status (4)

Country Link
JP (1) JP6433011B2 (fr)
CN (1) CN106103965B (fr)
BR (1) BR112016019051B1 (fr)
WO (1) WO2015146336A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3051149A1 (fr) * 2016-05-13 2017-11-17 Peugeot Citroen Automobiles Sa Platine de fixation de module jauge-pompe pour reservoir de carburant dans un vehicule automobile
EP3248821A1 (fr) * 2016-05-27 2017-11-29 Robert Bosch GmbH Dispositif de réglage d'au moins un écoulement de fluide dans un véhicule
CN112840114A (zh) * 2018-09-11 2021-05-25 株式会社电装 燃料供给装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6169200B1 (ja) * 2016-02-02 2017-07-26 株式会社ケーヒン 燃料圧力調整体及び燃料供給モジュール
JP7255960B2 (ja) * 2019-05-31 2023-04-11 ダイハツ工業株式会社 内燃機関の吸気装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010116793A (ja) * 2008-11-11 2010-05-27 Mitsuba Corp 燃料供給装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3302597B2 (ja) * 1997-03-07 2002-07-15 ダイハツ工業株式会社 燃料ポンプユニットの支持構造
JP5345570B2 (ja) * 2010-02-04 2013-11-20 株式会社ミツバ 燃料供給装置
JP5777878B2 (ja) * 2010-12-24 2015-09-09 株式会社ミツバ 燃料供給装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010116793A (ja) * 2008-11-11 2010-05-27 Mitsuba Corp 燃料供給装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3051149A1 (fr) * 2016-05-13 2017-11-17 Peugeot Citroen Automobiles Sa Platine de fixation de module jauge-pompe pour reservoir de carburant dans un vehicule automobile
EP3248821A1 (fr) * 2016-05-27 2017-11-29 Robert Bosch GmbH Dispositif de réglage d'au moins un écoulement de fluide dans un véhicule
CN112840114A (zh) * 2018-09-11 2021-05-25 株式会社电装 燃料供给装置
CN112840114B (zh) * 2018-09-11 2022-12-06 爱三工业株式会社 燃料供给装置

Also Published As

Publication number Publication date
JP6433011B2 (ja) 2018-12-05
JP2015190426A (ja) 2015-11-02
CN106103965B (zh) 2019-01-01
BR112016019051A2 (fr) 2017-08-15
CN106103965A (zh) 2016-11-09
BR112016019051B1 (pt) 2022-03-15

Similar Documents

Publication Publication Date Title
WO2015146336A1 (fr) Dispositif d'alimentation en carburant
JP6260865B2 (ja) 燃料供給装置
WO2017141596A1 (fr) Dispositif d'alimentation en carburant
US8151768B2 (en) Devices for mounting accessory components to canisters
US11619199B2 (en) Cover for fuel tank
CN111919022B (zh) 燃料箱用盖
JP6013159B2 (ja) 燃料供給装置
US20150034174A1 (en) Valve device for fuel tank
WO2016031726A1 (fr) Structure de montage de boîtier de soupape
US10017050B2 (en) Valve device
US10279679B2 (en) Valve device
WO2015146335A1 (fr) Dispositif d'alimentation en carburant
JP6338181B2 (ja) 燃料供給装置
JP6407687B2 (ja) 燃料供給装置
US11339753B2 (en) Fuel suction inlet member
JP6382700B2 (ja) 燃料供給装置
JP2021102954A (ja) 車両用燃料供給装置
JP6208733B2 (ja) 燃料供給装置
JP7214584B2 (ja) フィルタケースの結合構造
JP5688964B2 (ja) 燃料供給装置
JP2015107772A (ja) 燃料タンクシステム
JP2012137001A (ja) ブローバイガス還元通路構造

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15768255

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112016019051

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: IDP00201606603

Country of ref document: ID

122 Ep: pct application non-entry in european phase

Ref document number: 15768255

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112016019051

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20160817