WO2003062627A1 - Dispositif d'alimentation en combustible - Google Patents

Dispositif d'alimentation en combustible Download PDF

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Publication number
WO2003062627A1
WO2003062627A1 PCT/JP2003/000103 JP0300103W WO03062627A1 WO 2003062627 A1 WO2003062627 A1 WO 2003062627A1 JP 0300103 W JP0300103 W JP 0300103W WO 03062627 A1 WO03062627 A1 WO 03062627A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
passage
supply device
vapor
mounting flange
Prior art date
Application number
PCT/JP2003/000103
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Saito
Original Assignee
Mikuni Corporation
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 Mikuni Corporation filed Critical Mikuni Corporation
Publication of WO2003062627A1 publication Critical patent/WO2003062627A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/103—Mounting pumps on fuel tanks

Definitions

  • the present invention relates to a fuel supply device applied to supply fuel to an indicator of an internal combustion engine (hereinafter, referred to as an engine), and particularly to a fuel supply device for a vehicle such as a motorcycle equipped with a small displacement engine.
  • the present invention relates to a fuel supply device installed in a country. Background art
  • a fuel supply device in which a fuel pump, a fuel pressure regulator, a filter, and the like are integrated and disposed in a fuel tank is known.
  • a fuel pump constituting the fuel supply device for example, a circumferential flow type turbine pump is employed.
  • the turbine pump has a relatively large and complicated structure including a pump section and a motor section, and has no self-priming capability. Therefore, the turbine pump is disposed in the fuel tank. Therefore, this fuel supply device is suitable when accommodated in a relatively large fuel tank such as a fuel tank of a four-wheeled vehicle.
  • the fuel tank is relatively small, and its shape is limited. Therefore, it is difficult to accommodate the above-described fuel supply device in a fuel tank.
  • the engine, fuel tank, etc. are relatively close Since the fuel supply system is located in an area where the fuel is supplied, the fuel supply system should be minimized by the effects of radiant heat from the engine, and the system itself should be simplified as much as possible in order to avoid damages such as overturning. Need to be reduced or not exposed to the outside world.
  • various types of fuel tanks having different depths or outer contours are set according to the type of vehicle, so it is necessary to be able to apply any type of fuel tank. In addition, it is necessary to reduce vibration, noise, etc. caused by the driving source of fuel supply.
  • the present invention has been made in view of the above points, and has as its object to reduce the size, simplify the structure, improve functional reliability, ensure stable fuel discharge performance, It is an object of the present invention to provide a fuel supply device suitable for vehicles such as a motorcycle equipped with a small-displacement engine, for common use, reduction of vibration and noise, and the like. Disclosure of the invention
  • the fuel supply device of the present invention is a fuel supply device that is installed in a fuel tank and supplies fuel to an injector of an internal combustion engine.
  • the fuel supply device reciprocates by an electromagnetic starting force and sucks fuel through a suction filter.
  • Pump module consisting of a plunger pump for pumping and pumping and a fuel pressure regulator having a discharge section for adjusting and discharging the pressure of the pumped fuel, and a fuel passage section defining a fuel passage and attached to the fuel tank.
  • a fuel passage member for detachably connecting the discharge section and the fuel passage section to communicate with each other.
  • this device is of a different type, for example, a fuel tank having a different depth and a different mounting portion.
  • this device is of a different type, for example, a fuel tank having a different depth and a different mounting portion.
  • a common pump module can be applied.
  • the present invention when the present invention is applied to a fuel tank having only a different depth, it can be dealt with only by changing the connecting member and the fuel supply member, and a common pump module and a mounting flange member can be applied.
  • the suction filter has a discharge portion for discharging the vapor generated inside
  • the mounting flange member has a vapor passage portion through which the vapor passes and which opens into the fuel tank.
  • a structure having a vapor passage member for detachably connecting and communicating the portion and the vapor passage portion can be adopted.
  • the vapor generated in the suction filter can be guided upward through the vapor passage member, and can be discharged from the opening to the upper space in the fuel tank through the vapor passage portion formed in the mounting flange member.
  • the vapor passage member is detachable from the mounting flange member and the pump module (the discharge portion of the suction filter), the vapor passage member can be changed to a different type of fuel tank simply by changing the vapor passage member. Therefore, a common pump module and a common mounting flange member can be used.
  • the elastic body that is, the soft mount structure
  • the elastic body blocks the transmission and suppresses or prevents transmission to the mounting flange member.
  • vibration and noise transmitted to the outside can be reduced.
  • the fuel passage member is formed of a resin material so as to be elastically deformable.
  • the fuel passage member interposed between the mounting flange member and the pump module is formed of a resin material (for example, a rubber hose or the like) that is elastically deformable, the fuel passage member also has vibration and noise. It functions as an elastic body that cuts off air. As a result, the vibration and noise transmitted to the outside can be further reduced.
  • the vapor passage member is formed of a resin material so as to be elastically deformable.
  • the vapor passage member interposed between the mounting flange member and the pump module discharge portion of the suction filter
  • a resin material for example, a rubber hose or the like
  • This vapor passage member also functions as an elastic body that blocks vibration and noise. As a result, vibration and noise transmitted to the outside can be further reduced.
  • the pump module has a connecting portion for connecting to the connecting member, and the connecting portion is fixed to the pump module via an elastic member.
  • FIG. 1 is a schematic diagram of a fuel supply system showing a state in which an embodiment of a fuel supply device according to the present invention is installed in a fuel tank.
  • FIG. 2 is a side view showing an embodiment of the fuel supply device according to the present invention.
  • FIG. 3 is a side view showing a pump module constituting a part of the fuel supply device according to the present invention.
  • FIG. 4 is a side view showing a mounting flange member constituting a part of the fuel supply device according to the present invention.
  • FIG. 5 is a side view showing another embodiment of the fuel supply device according to the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
  • 1 to 4 show one embodiment of a fuel supply device according to the present invention.
  • the fuel supply device 10 according to this embodiment constitutes a part of a fuel supply system for supplying fuel to an injector driven by an electromagnetic valve in an engine that injects fuel by electronic control. As shown in Fig. 1, the fuel is supplied through the supply pipe 5 to the injector 4 installed in the fuel tank 1 of the motorcycle and attached to the intake port 3 of the engine 2 as shown in Fig. 1. ing.
  • the fuel supply device 10 connects the pump module 20, the mounting flange member 80 attached to the fuel tank 1, the pump module 20 and the mounting flange member 80.
  • the pump module 20 is electromagnetically activated.
  • a plunger pump 30 that reciprocates by force to suction and pump fuel, a fuel pressure regulator 50 that adjusts and discharges the pressure of fuel pumped from the plunger pump 30, and is attached to the lower part of the plunger pump 30.
  • the suction filter 60, the connecting portion 70, and the like are integrally formed.
  • the plunger pump 30 is an electromagnetically driven positive displacement pump. As shown in FIG. 3, the plunger 3 2 is inserted so as to slide in the cylinder 31 and the cylinder 31 and reciprocate linearly.
  • the yoke 33 fitted on the outer periphery of the cylinder 32, the exciting coil 34 wound on the bobbin 34a fitted on the outer periphery of the yoke 33, and a resin for covering the outer periphery of the coil 34
  • An outer case 35 made of a material or the like is provided.
  • An end face wall 33a is formed at the upper end of the yoke 33, and a through hole 33a 'is formed at the center of the end wall 33a' to communicate with the outside.
  • a coil spring 36 a is disposed between the end wall 33 a and the plunger 32.
  • the lower end 33 b of the yoke 33 is fitted to the passage forming member 37.
  • a passage member 38 in which a fuel passage 38 a having a suction port 38 a ′ at a lower end is formed is fitted to the passage forming member 37.
  • the passage member 38 holds the port valve 39 for opening and closing the fuel passage 38a in a state of being biased in the closing direction by a spring 39a.
  • a coil coupling 36b is disposed between the upper end surface of the passage member 38 and the plunger 32.
  • the passage forming member 37 has a fuel passage 40 extending in a direction perpendicular to the reciprocating direction of the plungers 32 and having a plurality of discharge ports 40 a ′ formed in a cutout groove on the side surface.
  • the passage member 40 forming a is fitted.
  • the passage member 40 holds the check valve 41 for opening and closing the fuel passage 40a in a state of being urged in the closing direction by the spring 41a.
  • the circular hole formed at the downstream end of the check valve 41 functions to release air from the space accommodating the spring 41a.
  • the fuel pressure regulator 50 is an inlet control type regulator for adjusting the fuel pressure (fuel pressure) upstream of the injector 4, and is formed as a part of the passage forming member 37 as shown in FIG. Discharge port of member 40
  • a horizontal cylinder portion 51 defining a fuel passage 51a communicating with 40a ', a vertical cylinder portion serving as a discharge portion defining a fuel passage 52a communicating with the fuel passage 51a and extending vertically. 52.
  • a pressure receiving section that is located between the fuel passage 51 a and the fuel passage 52 a and opens and closes both passages to adjust the fuel pressure.
  • a check valve 54 for opening and closing the fuel passage 51 a is held in the horizontal tubular portion 51 in a state where the check valve 54 is urged in a closing direction by a spring 54 a.
  • the check valve 54 and the spring 54a also have a function of adjusting the fuel pressure.
  • the vertical cylindrical portion 52 as a discharge portion forms a connector pipe for connecting the fuel passage member 100.
  • a pressure receiving operation portion 53 is disposed in an intersecting space between the fuel passage 51 a extending in the horizontal direction and the fuel passage 52 a extending in the vertical direction.
  • the pressure receiving operation portion 53 is formed by a center disk 53a, a spring 53b, and a cover cap 53c having a through hole. Then, a part of the center disk 53 a comes into contact with the needle 54 b of the check panoleb 54 to open the check valve 54 against the biasing force of the spring 54 a. ing.
  • the suction filter 60 is formed in a flat shape with a substantially rectangular outline, and as shown in FIG. It is formed by a fitting cylinder portion 62 for connecting the lower end of the passage forming member 37 to the lower end of the passage forming member 37, a discharge portion 63 connected to the vapor passage member 110, and the like.
  • the connecting portion 70 is formed by a mount rubber 71 as an elastic member (elastic body), a connecting bracket 72 formed so as to surround the mount rubber 71, and the like.
  • the mount rubber 71 covers the upper end of the yoke 33 and has a through-hole 71a, and has elastic characteristics to absorb or block vibration and noise generated by reciprocation of the plunger 32. It is.
  • the connection bracket 72 is fixed to the mount rubber 71, has a through hole 72a on its upper surface, and a screw hole 7 for connecting to the connecting member 90 to a protruding piece 72b protruding from its upper surface. 2b.
  • the mounting flange member 80 includes a flange portion 81 attached to the fuel tank 1, a pipe connector 82 projecting outside the flange portion 81 and connecting the supply pipe 5, Electrical connector for making electrical connection of plunger pump 30 to coil 34.83, Flange 81 Hanging piece 84, projecting downward from flange 81, Connecting pipe 85, and connecting pipe Has 8 6
  • the hanging piece 84 is for connecting the connecting member 90, and has a screw hole 84a.
  • the connection pipe 85 is for connecting the fuel passage member 100, and forms a fuel passage portion defining the fuel passage 85a.
  • the connection pipe 86 is for connecting the vapor passage member 110, and defines a fuel passage 86a and an opening 86b opening to the space (air space) in the fuel tank 1. A passage portion is formed.
  • a filter 87 is provided in the vicinity of the opening 86b to prevent dust and the like from entering the fuel passage 86a.
  • the connecting member 90 includes a hanging piece 84 of the mounting flange member 80 and a connecting portion 70 (connecting bracket 72) of the pump module 20. It is formed by pressing a sheet metal or molding a resin material.
  • the connecting member 90 is detachably connected to the hanging piece 84 and the protruding piece 72 b of the connecting bracket 72 by a fastening screw 91 or the like.
  • the mount rubber 71 as an elastic body is interposed between the connection bracket 72 and the plunger pump 30, vibration, noise, and the like caused by the reciprocating motion of the plunger 32 are not included in this mount. Absorbed or attenuated (blocked) by the rubber 71, transmission to the connecting member 90 is prevented or suppressed.
  • the fuel passage member 100 is for connecting the connecting pipe 85 of the mounting flange member 80 to the vertical cylindrical portion (discharge portion) 52 of the pump module 20. It is formed to be elastically deformable using a resin material or the like. For example, a rubber hose or the like is applied.
  • the fuel passage member 100 is detachably connected by being fitted to the connection pipe 85 and the vertical tubular portion 52. At the time of connection, a clamp or the like for tightening the outer periphery of the fuel passage member 100 may be employed to surely prevent the fitting portion from falling off.
  • the fuel passage member 100 since the fuel passage member 100 is elastically deformable, it does not have a role of an elastic body to absorb or attenuate vibration, noise, and the like. Effectively prevent or suppress transmission to 80.
  • the vapor passage member 110 is used to connect the connection pipe 86 of the mounting flange member 80 to the discharge part 63 formed in the suction filter 60 of the pump module 20. It is formed to be elastically deformable using a resin material or the like. For example, a rubber hose or the like is applied. Then, the vapor passage member 110 is connected to the connection pipe 86 and the discharge portion 63. By being fitted, they are detachably connected. At the time of connection, a clamp or the like for tightening the outer periphery of the vapor passage member 110 may be employed to surely prevent the fitting portion from falling off.
  • the vapor passage member 110 since the vapor passage member 110 is elastically deformable, it does not have a role of an elastic body that absorbs or attenuates vibration, noise, and the like. Effectively preventing or suppressing transmission to zero.
  • the plunger 32 moves upward in the reciprocating direction against the urging force of the coil springs 36a and 36b.
  • the pressure difference causes the port valve 39 to open against the urging force of the spring 39a, so that fuel is sucked from the inlet 38a and flows into the space V1.
  • the plunger 32 stops when the electromagnetic force and the biasing forces of the coil springs 36a and 36b are balanced.
  • the plunger 32 moves downward by the urging force of the coil springs 36a and 36b, and compresses the fuel in the space VI.
  • the check valve 41 is opened against the urging force of the spring 41a, and the compressed fuel is discharged from the discharge port 40a.
  • the pressure receiving operation part 53 of the fuel pressure regulator 50 acts to make the fuel passage 52 a or the diaphragm C
  • the check valve 54 closes the fuel passage 51a by the biasing force of the spring 54a.
  • this device is composed of parts consisting of a pump module 20, a mounting flange member 80, a connecting member 90, a fuel passage member 100, and a vapor passage member 110. Each is formed by assembling.
  • a connecting member 90, a fuel passage member 100, and a vapor passage member 110 having a length corresponding to the depth H of the fuel tank 1 are prepared in advance. Then, by assembling each part, the device as shown in Fig. 2 is completed. After that, the lower part of the mounting flange member 80 (pump module 20 etc.) is inserted into the fuel tank 1, and the mounting flange member 80 is fixed to the mounting part of the fuel tank 1. Assembly to is completed.
  • FIG. 5 shows an embodiment in which the fuel supply device according to the present invention is applied to a fuel tank 1 having an inclined mounting portion.
  • this device 10 ′ has the same pump module 20 and mounting flange member 80 as the above-described embodiment, and a connecting member 9 having a length and shape different from those of the above-described embodiment.
  • the fuel passage member 100 is formed by a vapor passage member 110.
  • the connecting member 90 ′, the fuel passage member 100, and the vapor passage member 110 ′ are formed in a substantially bent shape in the middle in accordance with the inclination of the mounting portion. Have been. As described above, even if the fuel tank 1 ′ has an inclined mounting portion, the components (the connecting member 90 ′, the fuel passage member 100 ′, and the connecting member) connecting the pump module 20 and the mounting flange member 80 can be used. It can be applied by simply changing the vapor passage member 110 as appropriate.
  • the pump module 20 and the mounting flange member 80 are separated from each other.
  • the configuration in which the connection is detachable is shown, but the present invention is not limited to this.
  • the pump module 20 and the mounting A configuration in which the flange member 80 is detachably connected to the flange member 80 may be employed.
  • the connecting members 90, 90, the fuel passage members 100, 100, and the vapor passage members 110, 110 are formed independently.
  • the connecting member, the fuel passage member, and the vapor passage member are integrally formed as a connection and a passage member, and the connection member and the fuel passage member and the mounting flange member 80 or the pump module 2 are not limited thereto.
  • a configuration may be adopted in which a mount rubber as an elastic body is interposed between 0 and 0.
  • the connecting members 90, 90 are connected with the fastening screw 91, but the present invention is not limited to this, and the connecting members 90, 90 may be connected by a snap-fit connection or the like without using the fastening screw 91. .
  • the present invention is not limited to this.
  • general-purpose engines such as carts for tricycles or four-wheeled vehicles, lawnmowers, generators, or ships such as leisure boats, and even small-displacement engines such as snowmobiles and relatively small fuels
  • the present invention can be preferably applied to a vehicle equipped with a tank.
  • the pump module and the mounting flange member are formed separately, and the detachable connecting member and the fuel passage member further form the vapor supply member.
  • the detachable connecting member and the fuel passage member further form the vapor supply member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un dispositif d'alimentation en combustible, dans lequel un module de pompe (20) pourvu d'une pompe à plongeur (30) aspirant du combustible et l'alimentant par la force au moyen d'une force motrice électromagnétique, un régulateur de la pression du combustible (50) permettant de réguler ladite pression alimentée par la force, et un élément de bride de montage (80) installé sur un réservoir à combustible (1) sont disposés séparément l'un de l'autre et reliés l'un à l'autre au moyen d'un élément de connexion (90) via un tampon en caoutchouc (71) et au moyen d'un élément destiné au passage de combustible déformable élastiquement (100) et d'un élément destiné au passage de la vapeur (110) formé par des tuyaux en caoutchouc. Ce dispositif peut être utilisé avec divers types de réservoirs à combustible par le simple fait de modifier de façon appropriée l'élément de connexion (90), l'élément de passage du combustible (100), et l'élément de passage de la vapeur (110). Les vibrations et le bruit émanant de la pompe à plongeur peuvent ainsi être réduits, et des dispositifs d'alimentation en combustible installés dans les réservoirs à combustible des motocycles peuvent être adaptés l'un en fonction de l'autre.
PCT/JP2003/000103 2002-01-24 2003-01-09 Dispositif d'alimentation en combustible WO2003062627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002/14947 2002-01-24
JP2002014947A JP2003214276A (ja) 2002-01-24 2002-01-24 燃料供給装置

Publications (1)

Publication Number Publication Date
WO2003062627A1 true WO2003062627A1 (fr) 2003-07-31

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PCT/JP2003/000103 WO2003062627A1 (fr) 2002-01-24 2003-01-09 Dispositif d'alimentation en combustible

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JP (1) JP2003214276A (fr)
TW (1) TW200302315A (fr)
WO (1) WO2003062627A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619381A1 (fr) * 2004-07-20 2006-01-25 Aisan Kogyo Kabushiki Kaisha Système de réservoir de carburant pour un véhicule automobile
CN112424465A (zh) * 2018-08-01 2021-02-26 株式会社电装 燃料供给装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005163738A (ja) 2003-12-05 2005-06-23 Honda Motor Co Ltd 燃料用配管
JP5632636B2 (ja) * 2010-03-31 2014-11-26 本田技研工業株式会社 燃料ポンプの支持構造
JP5663624B2 (ja) * 2013-03-26 2015-02-04 株式会社ミツバ 燃料供給装置
JP6138369B2 (ja) * 2014-06-13 2017-05-31 三菱電機株式会社 燃料供給装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792063U (fr) * 1980-11-26 1982-06-07
JPH08177667A (ja) * 1994-12-20 1996-07-12 Mitsubishi Electric Corp 燃料ポンプ装置
JP2001107818A (ja) * 1999-08-05 2001-04-17 Denso Corp 燃料供給装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792063U (fr) * 1980-11-26 1982-06-07
JPH08177667A (ja) * 1994-12-20 1996-07-12 Mitsubishi Electric Corp 燃料ポンプ装置
JP2001107818A (ja) * 1999-08-05 2001-04-17 Denso Corp 燃料供給装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619381A1 (fr) * 2004-07-20 2006-01-25 Aisan Kogyo Kabushiki Kaisha Système de réservoir de carburant pour un véhicule automobile
US7201151B2 (en) 2004-07-20 2007-04-10 Aisan Kogyo Kabushiki Kaisha Fuel tank unit
CN112424465A (zh) * 2018-08-01 2021-02-26 株式会社电装 燃料供给装置

Also Published As

Publication number Publication date
JP2003214276A (ja) 2003-07-30
TW200302315A (en) 2003-08-01

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