WO2007004676A1 - Fuel pump - Google Patents

Fuel pump Download PDF

Info

Publication number
WO2007004676A1
WO2007004676A1 PCT/JP2006/313414 JP2006313414W WO2007004676A1 WO 2007004676 A1 WO2007004676 A1 WO 2007004676A1 JP 2006313414 W JP2006313414 W JP 2006313414W WO 2007004676 A1 WO2007004676 A1 WO 2007004676A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
pump
fuel tank
tank
motor
Prior art date
Application number
PCT/JP2006/313414
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Ikarugi
Shinichiro Horisoko
Keizo Hayama
Katsutoshi Ito
Bunji Homma
Hideyuki Iwamoto
Masahiko Narushima
Original Assignee
Mitsuba Corporation
Honda Giken Kogyo Kabushiki Kaisha
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 Mitsuba Corporation, Honda Giken Kogyo Kabushiki Kaisha filed Critical Mitsuba Corporation
Priority to CN200680023879.5A priority Critical patent/CN101238284B/en
Priority to JP2007524093A priority patent/JP4939412B2/en
Priority to BRPI0612100A priority patent/BRPI0612100B1/en
Publication of WO2007004676A1 publication Critical patent/WO2007004676A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00Pumps with circumferential or transverse flow
    • F04D5/002Regenerative pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus 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
    • F02M37/04Feeding by means of driven pumps
    • F02M37/08Feeding by means of driven pumps electrically driven
    • F02M37/10Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/103Mounting pumps on fuel tanks

Definitions

  • the present invention belongs to the technical field of fuel pumps mounted on vehicles such as motorcycles.
  • the fuel pumps constituting the fuel supply device for this type of vehicle are configured such that the fuel pump is provided at the bottom of the fuel tank and the fuel pump is driven while immersed in the fuel.
  • the fuel pump is configured such that the pump portion is disposed below the cylindrical case body, and the motor portion that drives the pump portion is disposed above the case body, so that the fuel in the fuel tank is reduced. It also enables fuel supply.
  • an electric power source is configured such that a commutator is provided on a motor shaft, an external power supply is supplied via a brush that is in sliding contact with the commutator, and thereby the motor shaft is rotated.
  • a fuel discharge part is provided on the motor part side (Patent Document 1).
  • the fuel discharge unit is provided with the fuel tank facing upward, so that a fuel tank is used using a pipe connected to the discharge unit. It will be pulled out from the inside and guided to the engine side (Patent Document 2).
  • Patent Document 1 JP-A-10-47291
  • Patent Document 2 Special Publication 2003/044357
  • the fuel discharge part is provided on the motor part side, and the flow path of the fuel sucked into the case body is the inside of the case body of the fuel pump, that is, the motor. It is configured to pass between the rotor constituting the part and the case body to reach the bracket on the motor part side. For this reason, the permanent magnets arranged on the inner periphery of the case body and the rotor There is a problem that a fuel flow path must be ensured between the outer periphery and the motor unit is made compact, that is, there is a limit to the compactness of the fuel pump.
  • the present invention has been created in view of the above-described circumstances for the purpose of solving these problems.
  • the invention of claim 1 is directed to a fuel pump provided at the bottom of a fuel tank.
  • a fuel suction part for sucking fuel into the pump part is provided on the pump part side of the case body.
  • the fuel discharge part for discharging the fuel to the outside of the pump part is formed in the vertical direction.
  • the invention of claim 2 is the fuel pump according to claim 1, wherein the fuel pump is supported in the fuel tank via a pump stay, and the pump stage communicates with the fuel tank and is below the bottom of the fuel tank.
  • a fuel supply part is formed which stores fuel and supplies it to the suction part.
  • the invention of claim 3 is the fuel supply unit according to claim 2, wherein the fuel supply unit is provided with a fuel filter, and the fuel from the fuel tank is filtered and stored.
  • a fourth aspect of the present invention is the pump stage according to any one of the second or third aspects, wherein the pump stage is formed with a guide path for guiding the fuel discharged from the fuel discharge portion to the outside.
  • the invention of claim 5 provides the pump stage according to any one of claims 2, 3 and 4.
  • the force bra portion connected to the external power source is formed so as to protrude downward from the bottom of the fuel tank.
  • a sixth aspect of the present invention is the motor unit according to any one of the first to fifth aspects, wherein the motor portion is constituted by a brush type electric motor.
  • the fuel pump can be made compact, the piping to the engine side can be shortened, and the configuration can be simplified.
  • the number of parts can be reduced and the configuration can be simplified, while the fuel supply to the fuel pump can be performed stably and reliably.
  • a fuel filter having a large force can be used without separately providing a space for disposing the fuel filter, and a more excellent fuel pump can be obtained.
  • the configuration of the flow path to the engine side can be simplified, and the fuel supply device can be downsized.
  • the configuration of the fuel supply device can be further simplified and compactness can be achieved.
  • FIG. 1 is a cross-sectional front view of a fuel pump.
  • FIG. 2 is a perspective view of a partition plate.
  • reference numeral 1 denotes a fuel pump constituting a fuel supply device.
  • the fuel pump 1 is attached to a fuel tank 2 to be described later, and is a pump part P located below the bottom 2a side of the fuel tank 2 And a motor part M above the pump part P.
  • the motor part M and the pump part P are configured to include a cylindrical yoke 3 that constitutes the case body of the present invention, and an upper step 3a is formed on the cylindrical end surface of the upper end of the yoke 3.
  • An outer peripheral edge portion of the ring-shaped upper bracket 4 constituting the upper end portion of the case body is caulked to the upper step portion 3a.
  • Reference numeral 5 denotes a armature constituting the motor part M, and the upper end of the armature shaft (motor shaft) 5a constituting the armature 5 is a bearing part recessed in the shaft core part of the upper bracket 4 It is rotatably supported by 4a. Further, the force with which the commutator 6 is physically fitted to the upper end portion of the armature shaft 5a is connected to the outer peripheral surface of the resin ring-shaped portion 6a with the conductive commutator piece 6b surrounding it. Configured to be provided in multiple directions Has been.
  • a pair of brush holders 4b are formed in the circumferential direction on the lower end surface of the upper bracket 4, and the brushes 7 biased toward the inner diameter side are respectively applied to the brush holder 4b.
  • the tip end surface of each brush 7 on the inner diameter side is set so as to abut on the commutator piece 6b in a resilient manner.
  • a plurality of ring-shaped core members 5b are externally fitted below the outer fitting portion of the commutator 6 of the armature shaft 5a.
  • a plurality of coils 5c conducting to the commutator piece 6b are provided, and thereby the armature 5 is configured.
  • Reference numeral 8 denotes a pair of permanent magnets fixed to the inner peripheral surface of the yoke 3 facing the armature 5 at a predetermined interval in the circumferential direction.
  • the permanent magnet 8 and the outer surface of the armature 5 are fixed to each other.
  • the circumferences are set so as to be close to each other.
  • the lower end 5d of the armature shaft 5a has a through hole 9a formed in the shaft core portion of the ring-shaped lower bracket 9 fixed to the lower end portion of the leg yoke 3 constituting the pump portion P. And is rotatably supported by a bearing 9b disposed in the through hole 9a. Then, as will be described later, by supplying an external power source to the brush 7, the coils 5c are excited via the commutator piece 6b, whereby the armature core 5 has a magnetic pole formed by the permanent magnet 8. It is set to rotate in the yoke 3.
  • the outer peripheral edge portion of the lower bracket 9 is disposed in abutting manner below the lower bracket 9, and together with the outer peripheral edge portion of the pump bracket 10 constituting the lower end portion of the case body of the present invention.
  • a lower step 3b formed on the yoke 3 is caulked and the lower bracket 9 and the pump bracket 10 constitute a pump part P.
  • a recess 9c that opens downward is formed on the lower surface of the lower bracket 9, and the lower bracket 9 abuts the pump bracket 10 against the outer peripheral edge of the outer diameter side of the recess 9c.
  • a pump chamber PR is formed between the bracket 9 and the pump bracket 10.
  • a lower end portion 5d of the armature shaft 5a that protrudes downward through the through hole 9a of the lower bracket 9 protrudes into the pump chamber PR, and the protruding lower end portion 5d has an outer peripheral edge portion.
  • the impeller 11 formed with the blade portion 11a is supported in a penetrating manner by being fitted with a key, so that the impeller 11 is set to rotate as the motor portion M is driven. Yes.
  • a ring-shaped concave portion 9d serving as a fuel flow path is formed facing the blade portion 11a of the impeller 11, and the ring shape
  • a motor part-side discharge part 9e that opens between the motor part M and the pump part P and communicates with the recess 9d in the vertical direction is provided.
  • the upper surface of the pump bracket 10 is formed with a recess 10a that protrudes into the pump chamber PR and loosely fits the lower end portion 5d of the armature shaft 5a that supports the impeller 11 in a non-rotating manner, and the impeller blade portion 11a
  • a ring-shaped recess 10b serving as a fuel flow path is formed facing the (lower bracket ring-shaped recess 9e).
  • a cylindrical hole fuel suction portion 10c that penetrates in the vertical direction in a state of communicating with the ring-shaped recess 10b and sucks fuel is formed, and is located at a different circumferential position from the fuel suction portion 10c.
  • a cylindrical fuel discharge portion 10d that penetrates in the vertical direction while communicating with the ring-shaped recess 10b and protrudes downward to discharge the fuel to the outside is formed.
  • the check valve 12 is a check valve provided in the fuel discharge section 10d.
  • the check valve 12 includes a bottomed cylindrical valve body 12a and a through-hole 12b opened at the bottom located above the valve body 12a.
  • the check valve 12 is arranged so as to be movable in the vertical direction in the fuel discharge part 10d, and has a function as a relief valve, so that the fuel in the pipe connected to the discharge guiding path 13g side can be When the temperature becomes high and the pressure becomes high, the valve body 12a is displaced upward to reduce the fuel pressure on the discharge guiding passage 13g side.
  • a ring-shaped through hole 2b is formed in the bottom 2a of the fuel tank 2, and the through hole 2b is provided with a pump stay unit (corresponding to the pump stage of the present invention) 13. It is set to be sealed with.
  • the pump stay unit 13 has a function of supporting the fuel pump 1 in the fuel tank 2.
  • a bottomed cylindrical portion 13a is formed at a lower portion of the pump stay unit 13, and a flange portion 13b protruding to the outer diameter side is formed on the outer peripheral surface of the bottomed cylindrical portion 13a. ing. Then, the flange portion 13b is fixed by abutting against the fuel tank through hole 2b. By doing so, the bottomed cylindrical portion 13a is set so as to cover the fuel tank penetration 2a in a sealed manner, and in this state, the bottomed cylindrical portion 13a is disposed so as to protrude below the fuel tank 2. It is structured to be done.
  • the pump stay unit 13 has a predetermined gap in the circumferential direction from the upper cylinder end of the bottomed cylindrical part 13a which is an upper part of the flange part 13b and is a part fitted into the fuel tank 2.
  • a plurality of stage pieces 13c extending upward are formed as a body, and a fixed piece 13d bent toward the inner diameter side is formed at the upper end of these stage pieces 13c.
  • the pump stay unit 13 fixes the fixed piece 13d to the upper bracket 9 of the fuel pump 1 disposed in the fuel tank 2, so that the stage piece 13c is in close proximity to the yoke 3 and the fuel pump 1
  • the fuel pump 1 is fixedly supported in a standing posture in which the pump part P is in the lower side in the fuel tank 2.
  • a step portion 13e having a small diameter on the lower side is formed on the inner peripheral surface of the bottomed cylindrical portion 13a protruding outward (downward) from the fuel tank 2 of the pump stay unit 13.
  • a disc-shaped partition plate 14 is fixed to the stepped portion 13 3e in a sealing and abutting manner, so that the partition plate 14 partitions the inside of the bottomed cylindrical portion 13a vertically. Is set.
  • the partition plate 14 is disposed below the bottom side 2a of the fuel tank 2, and faces the pump bracket 10 of the fuel pump 1 supported upright by the step piece 13c and the fixed piece 13d. It is set to be.
  • the partition plate 14 is provided with a fuel finisher 15, and the fuel flowing from the upper side of the partition plate 14 to the bottomed cylindrical portion 13 a side through the through hole 2 b of the fuel tank bottom 2 a is disposed in the fuel filter 15 installation portion. Accordingly, the lower portion of the bottomed cylindrical portion 13a partitioned by the partition plate 14 is a fuel supply portion 13f in which fuel filtered by the fuel filter 15 is stored. It is configured.
  • a cylindrical suction guide passage 14a is formed on the outer diameter side portion of the partition plate 14 facing the pump bracket 10 so as to face the fuel suction portion 10c and project upward.
  • the suction guide passage 14a is formed in communication with the fuel supply portion 13f through a through hole 14b provided in the partition plate 14, and the projecting tip of the suction guide passage 14a has the above-described fuel.
  • the pump 1 is connected by sealing it into the cylindrical fuel suction part 10c. It is. As a result, as the impeller 11 of the fuel pump 1 rotates, the fuel suction portion 10c is supplied with the filtered fuel stored in the fuel supply portion 13f via the suction guide passage 14a. It is structured as follows.
  • a discharge through hole 14 c is formed on the outer diameter side located at a portion facing the fuel discharge portion 10 d of the pump bracket 10.
  • the discharge through hole 14c is configured as a through hole that vertically penetrates the partition plate 14, and is set so that the fuel discharge portion 10d on the fuel pump 1 side penetrates in a sealed manner. Then, the penetrating tip of the fuel discharge portion 10d fitted into the discharge through-hole 14c is sealed with a discharge guide passage (corresponding to the guide passage of the present invention) 13g formed in the bottomed tubular portion 13a. It is set to fit into the shape.
  • the discharge guiding path 13g is partitioned from the fuel supply part 13f formed in the bottomed cylindrical part 13a, and is formed adjacent to the fuel supply part 13f.
  • the bottom side of the bottomed cylindrical part 13a It is formed so as to extend toward the outer diameter side, and is set so that a pipe (not shown) from the engine side is connected to the extending end portion of the discharge guiding path 13g. .
  • an external force bra (not shown) is connected to the outer peripheral portion of the bottomed cylindrical portion 13a exposed from the fuel tank 2 of the pump stay unit 13 and below the fuel tank bottom 2c.
  • a force bra portion 13h for inputting an external power source is formed. Then, the external power input through the force bra portion 13h is transmitted through the L-shaped first terminal plate 16, the conductive plate 16a facing up and down, and the second terminal plate 16b. In addition, it is set so as to be supplied to the brush 7 disposed in the upper bracket 4 of the fuel pump 1.
  • the upper bracket 4 constituting the motor unit M is provided with a pressure adjusting device 17 as an air vent means, and the pressure in the fuel pump 1 reaches a predetermined pressure.
  • the pressure adjusting device 17 is provided in a recessed hole 4c formed in a recessed groove shape downward from the upper side surface of the upper bracket 4, and communicates with the bottom surface of the recessed hole 4c on the fuel tank 2 side.
  • the through-hole 4d opened as described above, a spherical valve body 17a that closes the through-hole 4d, and the valve body 17a is elastically pressed toward the through-hole 4d, and the through-hole 4d is closed by the valve body 17a.
  • the valve body 17c is opened when a pressure exceeding the urging force of the ammunition 17b is applied in the motor part M, and the yoke 17 is opened via the through hole 4d.
  • the fuel in 3 is set to discharge to the fuel tank 2 side.
  • the armature shaft 5a rotates, and the impeller 11 The body rotates.
  • the fuel is sucked into the pump part P through the fuel suction part 1 Oc stored in the fuel supply part 13f in a filtered state from the fuel tank 2.
  • the sucked fuel flows through the lower bracket ring-shaped concave portion 9d and the pump bracket ring-shaped concave portion 10b formed in the opposite portion of the impeller blade portion 11a as a flow path, and the upper bracket 9 discharge portion on the motor side.
  • 9e and the fuel discharge part 10d of the pump bracket 10 are set to be guided to the engine side via the fuel guide path 13g.
  • the pressure adjusting device 17 is in a closed state, and is opened when the pressure in the fuel pump 1 increases, and the fuel is discharged to the fuel tank 2 side, and the pressure in the fuel pump 1 is appropriately adjusted. It is set to adjust.
  • the fuel stored in the fuel supply unit 13f moves as a flow path from the fuel suction unit 10c formed in the pump bracket 10 of the pump unit P to the fuel discharge unit 10d. Therefore, a fuel flow path is not formed between the inner peripheral surface of the yoke 3 (permanent magnet 8) of the motor part M and the armature 5, so that the yoke 3 (permanent magnet) of the motor part M is formed. 8) The gap between the inner peripheral surface and armature 5 can be set as small as possible, and the fuel flow path is only at the pump part P, so the pressure loss can be reduced accordingly. Has been.
  • the fuel discharge part 10d is guided to the engine side through a fuel guide path 13g arranged adjacent to the fuel supply part 13e of the pump stay unit 13, and thus, Unlike the fuel supply device, the piping from the fuel discharge part of the fuel pump to the engine side does not need to be a complicated configuration that is pulled out from the fuel tank in a sealed manner, and the fuel supply device can be made compact. Configured as Yes.
  • the fuel pump 1 constituting the fuel supply device is configured such that the brush 7 is in sliding contact with the commutator 6 provided on the armature shaft 5a, and the outer periphery of the armature 5;
  • the inner peripheral surface of the permanent magnet 8 provided on the inner peripheral surface of the yoke 3 is provided close to each other.
  • the fuel pump 1 since the fuel pump 1 is formed in a standing manner in the pump bracket 10 of the pump part P located on the lower side so that the fuel suction part 10c faces in the vertical direction, the fuel pump 1 Since the fuel discharge portion 10d is also formed in the pump bracket 10, the motor portion M side is filled with fuel, but the yoke 3, that is, the permanent magnet 8 is The outer periphery of the armature 5 and the inner peripheral surface of the yoke 3 are provided close to each other, as it is not necessary to form a flow path between the inner peripheral surface of the fixed yoke 3 and the outer surface of the armature 5. As a result, the fuel pump 1 can be made compact.
  • the fuel discharge part 10d is formed on the pump part P side (downward), the piping configuration for forming the flow path to the engine side is made to penetrate through the inside and outside of the fuel tank 2. It is not necessary to provide any piping that leads to the outside, and the fuel flow path from the fuel discharge part 10d to the engine side can be shortened, so that not only the number of parts can be reduced but also the pressure loss can be reduced.
  • the fuel supply device can be made more compact and the fuel tank 2 can be made more compact.
  • the fuel pump 1 is supported in the fuel tank 2 by the step piece 13c and the fixed piece 13d of the pump stay unit 13, and in this case, the pump stay unit 13 covers the through hole 2b of the bottom 2a of the fuel tank 2 in a sealing manner, and a bottomed cylindrical portion 13a is formed below the fuel tank bottom 2a.
  • a fuel supply portion 13f that stores fuel to be supplied to the fuel suction portion 10c of the fuel pump 1 is formed in the bottomed cylindrical portion 13a.
  • the fuel pump 1 it is possible to supply the fuel pump 1 with fuel that will not be affected even if the oil level in the fuel tank 2 changes, and to ensure that the fuel in the fuel tank 2 is low Therefore, the fuel can be supplied to the fuel pump 1 in a stable manner.
  • the fuel tank 2 since the amount of effective fuel in the fuel tank 2 can be increased, the fuel tank 2 can be further reduced in size.
  • the fuel supply unit 13f is provided with the fuel filter 15 so that the fuel from the fuel tank 2 is filtered and stored in the fuel supply unit 13f. It is not necessary to secure a separate installation space, and the shape of the fuel filter 15 can be increased in accordance with the size of the fuel supply section 13f. S can.
  • the pump stay unit 13 is formed with a fuel guide path 13g as a fuel flow path from the fuel discharge portion 10d in the body, so that a flow path to the engine side is provided. Therefore, it is possible to reduce the size of the fuel supply system, which makes piping for the installation easy and does not require a complicated configuration.
  • the fuel supply device since the force bra portion 13h for connecting an external force bra for supplying external power to the brush 7 is formed on the pump stay unit 13, the fuel supply device This can further simplify the configuration and contribute to downsizing.
  • the present invention is of course not limited to the above-described embodiment, and the motor portion may be configured to use a brushless type electric motor. Even in this case, the motor portion is disposed on the inner peripheral surface of the yoke. In addition, the distance between the inner peripheral surface of the stator coil and the outer peripheral surface of the rotor can be reduced to achieve compactness, and the fuel flow path can be shortened.
  • the present invention is useful for a fuel pump mounted on a vehicle such as a motorcycle, and it is not necessary to form a fuel flow path in the yoke. Therefore, the yoke inner peripheral surface and the armature outer surface are brought close to each other. In addition, it is possible to shorten the fuel flow path that does not need to be provided through the inside and outside of the piping structure for forming the fuel flow path to the engine side, so the number of parts can be reduced. Therefore, the pressure loss caused by the force can be reduced, and the fuel supply device and the fuel tank can be made compact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A fuel pump enabling a reduction in the size of a fuel feeder and a simplification in the structure thereof. The fuel pump (1) comprises a pump part (P) disposed on the lower part of a cylindrical yoke (3) and a brush type motor part (M) disposed on the upper part of the yoke (3) and driving the pump part (P). A pump bracket (10) covering the pump part (P) side end part of the yoke (3) comprises a fuel suction part (10c) sucking a fuel into the pump part (P) and a fuel discharge part (10d) discharging the fuel to the outside of the pump part (P).

Description

明 細 書  Specification
燃料ポンプ  Fuel pump
技術分野  Technical field
[0001] 本発明は、自動二輪車等の車両に搭載される燃料ポンプの技術分野に属するもの である。  [0001] The present invention belongs to the technical field of fuel pumps mounted on vehicles such as motorcycles.
背景技術  Background art
[0002] —般に、この種車両用の燃料供給装置を構成する燃料ポンプのなかには、燃料ポ ンプを燃料タンクの底辺に設け、燃料ポンプが燃料に浸漬した状態で駆動するように 構成されたインタンク式のものがある。この場合に、燃料ポンプは、筒状のケース体の 下方にポンプ部を配し、ケース体の上方にポンプ部を駆動するモータ部を配するよう に構成され、燃料タンクの燃料が少なくなつても燃料供給できるようにしている。  [0002] —Generally, some of the fuel pumps constituting the fuel supply device for this type of vehicle are configured such that the fuel pump is provided at the bottom of the fuel tank and the fuel pump is driven while immersed in the fuel. There is an in-tank type. In this case, the fuel pump is configured such that the pump portion is disposed below the cylindrical case body, and the motor portion that drives the pump portion is disposed above the case body, so that the fuel in the fuel tank is reduced. It also enables fuel supply.
[0003] ところで、燃料ポンプに用いられるモータ部としては、モータ軸にコンミテータを設け 、該コンミテータに摺接するブラシを介して外部電源を供給し、これによつてモータ軸 を回転する構成とした電動モータを用いたものがあり、このようなものでは、燃料吐出 部がモータ部側に設けられている(特許文献 1)。  [0003] By the way, as a motor unit used in a fuel pump, an electric power source is configured such that a commutator is provided on a motor shaft, an external power supply is supplied via a brush that is in sliding contact with the commutator, and thereby the motor shaft is rotated. There is a type using a motor, and in such a type, a fuel discharge part is provided on the motor part side (Patent Document 1).
そして、このようなモータ部を用いた燃料ポンプを、インタンク式の燃料供給装置に 組み込む場合、燃料吐出部が上方を向く状態で設けられるため、吐出部に連結され た配管を用いて燃料タンク内から外部に引き出して、エンジン側に誘導することにな る (特許文献 2)。  When a fuel pump using such a motor unit is incorporated in an in-tank fuel supply device, the fuel discharge unit is provided with the fuel tank facing upward, so that a fuel tank is used using a pipe connected to the discharge unit. It will be pulled out from the inside and guided to the engine side (Patent Document 2).
特許文献 1 :特開平 10— 47291  Patent Document 1: JP-A-10-47291
特許文献 2:特公表 2003/044357  Patent Document 2: Special Publication 2003/044357
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] しかるに、前記従来の燃料ポンプでは、燃料吐出部がモータ部側に設けられており 、ケース体内に吸入された燃料の流路は、燃料ポンプのケース体の内部、即ち、モ 一タ部を構成する回転子とケース体とのあいだを通ってモータ部側のブラケットに至 るように構成されている。このため、ケース体の内周に配される永久磁石と、回転子の 外周とのあいだに燃料の流路を確保しなければならず、その分、モータ部のコンパク ト化、即ち、燃料ポンプのコンパクトィ匕に限界が生じるという問題がある。 However, in the conventional fuel pump, the fuel discharge part is provided on the motor part side, and the flow path of the fuel sucked into the case body is the inside of the case body of the fuel pump, that is, the motor. It is configured to pass between the rotor constituting the part and the case body to reach the bracket on the motor part side. For this reason, the permanent magnets arranged on the inner periphery of the case body and the rotor There is a problem that a fuel flow path must be ensured between the outer periphery and the motor unit is made compact, that is, there is a limit to the compactness of the fuel pump.
そのうえ、このようなモータ部を備えた燃料ポンプをインタンク式の燃料供給装置に 組み込む場合に、吐出部が上方を向く姿勢で燃料タンク内に位置することになる。こ のため、吐出部からエンジン側に誘導するための配管を、燃料タンク内の上方から外 部に引き出したものを、エンジン側に向けて引き回すようにしなければならなレ、。この ため、燃料流路が燃料タンク内外を経由して長くなつて圧力損失が大きくなり、その 分、燃料ポンプの出力を大きくしなければならず燃料ポンプのコンパクト化が損なわ れるという問題があるば力りでなぐ燃料タンク内外を連通する配管が必要になって 部品点数が増加し、燃料供給装置が大型化するば力りでなぐ構造が複雑になると いう問題もあり、これらに本発明の解決すべき課題がある。  In addition, when a fuel pump equipped with such a motor unit is incorporated into an in-tank fuel supply device, the discharge unit is positioned in the fuel tank in a posture facing upward. For this reason, piping that leads from the discharge part to the engine side, drawn from the upper part of the fuel tank to the outside, must be routed toward the engine side. For this reason, if the fuel flow path becomes longer through the inside and outside of the fuel tank, the pressure loss increases, and accordingly, the output of the fuel pump has to be increased and the compactness of the fuel pump is impaired. There is also a problem that the piping that connects the inside and outside of the fuel tank by force is required, the number of parts increases, and the structure to connect by force becomes complicated as the fuel supply device becomes larger. There are issues to be addressed.
課題を解決するための手段 Means for solving the problem
本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作さ れたものであって、請求項 1の発明は、燃料タンクの底辺に設けられる燃料ポンプを 、ケース体の下部に内装されるポンプ部と、ケース体の上部に内装されてポンプ部を 駆動するモータ部とで構成するにあたり、ケース体のポンプ部側に、燃料をポンプ部 内に吸入する燃料吸入部と、燃料をポンプ部の外部に吐出する燃料吐出部とを上下 方向を向いて形成したことを特徴とするものである。  The present invention has been created in view of the above-described circumstances for the purpose of solving these problems. The invention of claim 1 is directed to a fuel pump provided at the bottom of a fuel tank. In configuring the pump part built in the lower part and the motor part built in the upper part of the case body and driving the pump part, a fuel suction part for sucking fuel into the pump part is provided on the pump part side of the case body. The fuel discharge part for discharging the fuel to the outside of the pump part is formed in the vertical direction.
請求項 2の発明は、請求項 1において、燃料ポンプは、ポンプステーを介して燃料 タンク内に支持されるものとし、該ポンプステ一には、燃料タンクに連通し、燃料タンク 底辺よりも下方に位置して燃料を貯留して吸入部に供給する燃料供給部が形成され ているものである。  The invention of claim 2 is the fuel pump according to claim 1, wherein the fuel pump is supported in the fuel tank via a pump stay, and the pump stage communicates with the fuel tank and is below the bottom of the fuel tank. A fuel supply part is formed which stores fuel and supplies it to the suction part.
請求項 3の発明は、請求項 2において、燃料供給部には燃料フィルタが設けられ、 燃料タンクからの燃料が濾過されて貯留されるように構成されているものである。 請求項 4の発明は、請求項 2または 3の何れか一項において、ポンプステ一には、 燃料吐出部から吐出された燃料を外部に誘導する誘導路が形成されているものであ る。  The invention of claim 3 is the fuel supply unit according to claim 2, wherein the fuel supply unit is provided with a fuel filter, and the fuel from the fuel tank is filtered and stored. A fourth aspect of the present invention is the pump stage according to any one of the second or third aspects, wherein the pump stage is formed with a guide path for guiding the fuel discharged from the fuel discharge portion to the outside.
請求項 5の発明は、請求項 2、 3または 4の何れか一項において、ポンプステ一には 、外部電源に接続する力ブラ部が燃料タンク底辺よりも下方に突出して形成されてい るものである。 The invention of claim 5 provides the pump stage according to any one of claims 2, 3 and 4. The force bra portion connected to the external power source is formed so as to protrude downward from the bottom of the fuel tank.
請求項 6の発明は、請求項 1乃至 5の何れか一項において、モータ部はブラシ式の 電動モータで構成されてレ、るものである。  A sixth aspect of the present invention is the motor unit according to any one of the first to fifth aspects, wherein the motor portion is constituted by a brush type electric motor.
発明の効果  The invention's effect
[0006] 請求項 1の発明とすることにより、燃料ポンプのコンパクトィ匕ができるうえ、エンジン 側への配管を短くし、かつ、簡単な構成とすることができる。  [0006] With the invention of claim 1, the fuel pump can be made compact, the piping to the engine side can be shortened, and the configuration can be simplified.
請求項 2の発明とすることにより、部品点数の削減、構成の簡略化が図れる一方、 燃料ポンプへの燃料供給を安定、かつ、確実に行うことができる。  With the invention of claim 2, the number of parts can be reduced and the configuration can be simplified, while the fuel supply to the fuel pump can be performed stably and reliably.
請求項 3の発明とすることにより、燃料フィルタの配設スペースを別途設けることなく 、し力も、大きな燃料フィルタを用いることができて、一層優れた燃料ポンプとすること ができる。  According to the invention of claim 3, a fuel filter having a large force can be used without separately providing a space for disposing the fuel filter, and a more excellent fuel pump can be obtained.
請求項 4の発明とすることにより、エンジン側への流路構成を簡略化できて、燃料供 給装置の小型化を図ることができる。  With the invention of claim 4, the configuration of the flow path to the engine side can be simplified, and the fuel supply device can be downsized.
請求項 5の発明とすることにより、燃料供給装置の構成の簡略化を一層図ることが でき、コンパクトィ匕できる。  According to the invention of claim 5, the configuration of the fuel supply device can be further simplified and compactness can be achieved.
図面の簡単な説明  Brief Description of Drawings
[0007] [図 1]燃料ポンプの断面正面図である。  FIG. 1 is a cross-sectional front view of a fuel pump.
[図 2]仕切りプレートの斜視図である。  FIG. 2 is a perspective view of a partition plate.
符号の説明  Explanation of symbols
[0008] 1 燃料ポンプ [0008] 1 Fuel pump
2 燃料タンク  2 Fuel tank
2a 底辺  2a base
2b 貫通孔  2b Through hole
3 ヨーク  3 York
5 ァーマチュア  5 Armature
5a ァーマチュア軸  5a Armature axis
6 コンミテータ 7 ブラシ 6 Commutator 7 Brush
8 永久磁石  8 Permanent magnet
9 下側ブラケット  9 Lower bracket
10 ポンプブラケット  10 Pump bracket
10c 燃料吸入部  10c Fuel inlet
lOd 燃料吐出部  lOd Fuel outlet
11 インペラ  11 Impeller
13 ポンプステーユニット  13 Pump stay unit
13c ステ一片  13c piece
13f 燃料供給部  13f Fuel supply unit
13g 燃料誘導路  13g fuel taxiway
14 仕切りプレート  14 Partition plate
15 燃料フィルタ  15 Fuel filter
17 圧力調整装置  17 Pressure regulator
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0009] つぎに、本発明の実施の形態について、図面に基づいて説明する。  Next, embodiments of the present invention will be described with reference to the drawings.
図面において、 1は燃料供給装置を構成する燃料ポンプであって、該燃料ポンプ 1 は、後述する燃料タンク 2への取り付け状態で、燃料タンク 2の底辺 2a側となる下方 に位置するポンプ部 Pと、該ポンプ部 Pの上方のモータ部 Mとにより構成されている。 前記モータ部 Mとポンプ部 Pとは、本発明のケース体を構成する円筒状のヨーク 3を 備えて構成されており、該ヨーク 3上端部の筒端面には上側段差部 3aが形成され、 該上側段差部 3aに、ケース体の上端部を構成するリング状の上側ブラケット 4の外周 縁部がカシメ付けられている。  In the drawings, reference numeral 1 denotes a fuel pump constituting a fuel supply device. The fuel pump 1 is attached to a fuel tank 2 to be described later, and is a pump part P located below the bottom 2a side of the fuel tank 2 And a motor part M above the pump part P. The motor part M and the pump part P are configured to include a cylindrical yoke 3 that constitutes the case body of the present invention, and an upper step 3a is formed on the cylindrical end surface of the upper end of the yoke 3. An outer peripheral edge portion of the ring-shaped upper bracket 4 constituting the upper end portion of the case body is caulked to the upper step portion 3a.
[0010] 5は、モータ部 Mを構成するァーマチュアであって、該ァーマチュア 5を構成するァ 一マチュア軸(モータ軸) 5aの上端は、上側ブラケット 4の軸芯部に凹設された軸承 部 4aに回転自在に軸承されている。さらに、前記ァーマチュア軸 5aの上端部にはコ ンミテータ 6がー体的に外嵌している力 該コンミテータ 6は、樹脂製のリング状部 6a の外周面に、導電性のコンミテータ片 6bが周回り方向に複数設けられたものに構成 されている。一方、前記上側ブラケット 4の下端面には、周回り方向に一対のブラシホ ルダ 4bがー体的に形成されており、該ブラシホルダ 4bに、内径側に向けて付勢され たブラシ 7がそれぞれ配されており、各ブラシ 7の内径側先端面が、コンミテータ片 6b に弾圧状に当接するように設定されている。また、ァーマチュア軸 5aのコンミテータ 6 外嵌部の下方には、複数枚のリング状コア材 5bがー体的に外嵌しており、これら一 体化されたコア材 5bの外周に、所定のコンミテータ片 6bに導通する複数のコイル 5c が卷装されており、これによつて、ァーマチュア 5が構成されている。 [0010] Reference numeral 5 denotes a armature constituting the motor part M, and the upper end of the armature shaft (motor shaft) 5a constituting the armature 5 is a bearing part recessed in the shaft core part of the upper bracket 4 It is rotatably supported by 4a. Further, the force with which the commutator 6 is physically fitted to the upper end portion of the armature shaft 5a is connected to the outer peripheral surface of the resin ring-shaped portion 6a with the conductive commutator piece 6b surrounding it. Configured to be provided in multiple directions Has been. On the other hand, a pair of brush holders 4b are formed in the circumferential direction on the lower end surface of the upper bracket 4, and the brushes 7 biased toward the inner diameter side are respectively applied to the brush holder 4b. The tip end surface of each brush 7 on the inner diameter side is set so as to abut on the commutator piece 6b in a resilient manner. In addition, a plurality of ring-shaped core members 5b are externally fitted below the outer fitting portion of the commutator 6 of the armature shaft 5a. A plurality of coils 5c conducting to the commutator piece 6b are provided, and thereby the armature 5 is configured.
尚、 8はァーマチュア 5に対向するヨーク 3の内周面に周回り方向所定間隔を存して 固定される一対の永久磁石であって、該永久磁石 8の内周面と、ァーマチュア 5の外 周とは互いに近接対向するように設定されている。  Reference numeral 8 denotes a pair of permanent magnets fixed to the inner peripheral surface of the yoke 3 facing the armature 5 at a predetermined interval in the circumferential direction. The permanent magnet 8 and the outer surface of the armature 5 are fixed to each other. The circumferences are set so as to be close to each other.
[0011] さらに、ァーマチュア軸 5aの下端部 5dは、ポンプ部 Pを構成するべぐヨーク 3の下 端部に固定されるリング状の下側ブラケット 9の軸芯部に開設された貫通孔 9aを貫通 しており、該貫通孔 9aに配された軸受 9bにより回転自在に支持されている。そして、 後述するように、外部電源をブラシ 7に供給することにより、コンミテータ片 6bを介して 前記各コイル 5cが励磁され、これによつて、ァーマチュアコア 5は、永久磁石 8により 磁極が形成されたヨーク 3内を回転するように設定されている。  [0011] Further, the lower end 5d of the armature shaft 5a has a through hole 9a formed in the shaft core portion of the ring-shaped lower bracket 9 fixed to the lower end portion of the leg yoke 3 constituting the pump portion P. And is rotatably supported by a bearing 9b disposed in the through hole 9a. Then, as will be described later, by supplying an external power source to the brush 7, the coils 5c are excited via the commutator piece 6b, whereby the armature core 5 has a magnetic pole formed by the permanent magnet 8. It is set to rotate in the yoke 3.
[0012] 前記下側ブラケット 9の外周縁部は、該下側ブラケット 9の下方に突き当て状に配さ れ、本発明のケース体の下端部を構成するポンプブラケット 10の外周縁部とともに、 ヨーク 3に形成された下側段差部 3bにカシメ付けられており、下側ブラケット 9とボン プブラケット 10とによりポンプ部 Pが構成されている。  [0012] The outer peripheral edge portion of the lower bracket 9 is disposed in abutting manner below the lower bracket 9, and together with the outer peripheral edge portion of the pump bracket 10 constituting the lower end portion of the case body of the present invention. A lower step 3b formed on the yoke 3 is caulked and the lower bracket 9 and the pump bracket 10 constitute a pump part P.
前記下側ブラケット 9の下面には下方が開口する凹部 9cが形成されており、該下側 ブラケット 9の凹部 9cよりも外径側の外周縁部にポンプブラケット 10を突き当てること により、下側ブラケット 9とポンプブラケット 10とのあいだにポンプ室 PRが形成されて いる。そして、下側ブラケット 9の貫通孔 9aを貫通して下方に突出するァーマチュア 軸 5aの下端部 5dは、前記ポンプ室 PR内に突出しており、該突出する下端部 5dには 、外周縁部に羽根部 11aが形成されたインペラ 11がキー嵌合することにより回り止め 状に貫通支持されており、これによつて、モータ部 Mの駆動に伴レ、インペラ 11が回転 するように設定されている。 [0013] また、前記下側ブラケット 9の凹部 9cの外径側には、インペラ 11の羽根部 11aに対 向して燃料の流路となるリング状凹部 9dが形成されるとともに、該リング状凹部 9dに 連通して上下方向に貫通し、モータ部 Mとポンプ部 Pとのあいだを連通するモータ部 側吐出部 9eが開設されている。一方、ポンプブラケット 10の上面には、前記ポンプ 室 PRに突出し、インペラ 11を回り止め状に支持するァーマチュア軸 5aの下端部 5d を遊嵌する凹部 10aが形成されているとともに、インペラ羽根部 11a (下側ブラケットリ ング状凹部 9e)に対向して燃料の流路となるリング状凹部 10bが形成されている。さ らに、前記リング状凹部 10bに連通する状態で上下方向に貫通し、燃料を吸入する 筒孔状の燃料吸入部 10cが形成され、該燃料吸入部 10cとは別の周回り位置にお いて、リング状凹部 10bに連通する状態で上下方向に貫通し、かつ、下方に突出し て燃料を外部に吐出する筒孔状の燃料吐出部 10dが形成されている。 A recess 9c that opens downward is formed on the lower surface of the lower bracket 9, and the lower bracket 9 abuts the pump bracket 10 against the outer peripheral edge of the outer diameter side of the recess 9c. A pump chamber PR is formed between the bracket 9 and the pump bracket 10. A lower end portion 5d of the armature shaft 5a that protrudes downward through the through hole 9a of the lower bracket 9 protrudes into the pump chamber PR, and the protruding lower end portion 5d has an outer peripheral edge portion. The impeller 11 formed with the blade portion 11a is supported in a penetrating manner by being fitted with a key, so that the impeller 11 is set to rotate as the motor portion M is driven. Yes. [0013] Further, on the outer diameter side of the concave portion 9c of the lower bracket 9, a ring-shaped concave portion 9d serving as a fuel flow path is formed facing the blade portion 11a of the impeller 11, and the ring shape A motor part-side discharge part 9e that opens between the motor part M and the pump part P and communicates with the recess 9d in the vertical direction is provided. On the other hand, the upper surface of the pump bracket 10 is formed with a recess 10a that protrudes into the pump chamber PR and loosely fits the lower end portion 5d of the armature shaft 5a that supports the impeller 11 in a non-rotating manner, and the impeller blade portion 11a A ring-shaped recess 10b serving as a fuel flow path is formed facing the (lower bracket ring-shaped recess 9e). Furthermore, a cylindrical hole fuel suction portion 10c that penetrates in the vertical direction in a state of communicating with the ring-shaped recess 10b and sucks fuel is formed, and is located at a different circumferential position from the fuel suction portion 10c. In addition, a cylindrical fuel discharge portion 10d that penetrates in the vertical direction while communicating with the ring-shaped recess 10b and protrudes downward to discharge the fuel to the outside is formed.
12は燃料吐出部 10dに設けられたチェックバルブであって、該チェックバルブ 12は 、有底筒状のバルブボディー 12aと、該バルブボディー 12aの上方に位置する底辺 に開設された貫通孔 12bを封止する球状の弁体 12cとを備えて構成され、燃料吐出 部 10dから吐出される燃料の圧力が所定の圧力に達することで弁体 12cがバルブボ ディー 12aの貫通孔 12bを開放し、燃料を後述する排出誘導路 13g側に吐出するよ うに設定されている。尚、チェックバルブ 12は、燃料吐出部 10d内を上下方向移動 自在に配されていてリリーフ弁としての機能を備えて構成されており、排出誘導路 13 g側に接続される配管内の燃料が高温になって高圧となった場合に、バルブボディ 一 12aが上方に変位することにより排出誘導路 13g側の燃料の圧力を低減させるよう に構成されている。  12 is a check valve provided in the fuel discharge section 10d. The check valve 12 includes a bottomed cylindrical valve body 12a and a through-hole 12b opened at the bottom located above the valve body 12a. A spherical valve body 12c for sealing, and when the pressure of the fuel discharged from the fuel discharge portion 10d reaches a predetermined pressure, the valve body 12c opens the through hole 12b of the valve body 12a, and the fuel Is set to discharge to the discharge guiding path 13g side described later. Note that the check valve 12 is arranged so as to be movable in the vertical direction in the fuel discharge part 10d, and has a function as a relief valve, so that the fuel in the pipe connected to the discharge guiding path 13g side can be When the temperature becomes high and the pressure becomes high, the valve body 12a is displaced upward to reduce the fuel pressure on the discharge guiding passage 13g side.
[0014] 一方、前記燃料タンク 2の底辺 2aには、リング状の貫通孔 2bが開設されており、該 貫通孔 2bは、ポンプステーユニット(本発明のポンプステ一に相当する) 13を設ける ことで封止されるように設定されている。そして、前記ポンプステーユニット 13は、燃 料タンク 2内において燃料ポンプ 1を支持する機能を備えて構成されている。  On the other hand, a ring-shaped through hole 2b is formed in the bottom 2a of the fuel tank 2, and the through hole 2b is provided with a pump stay unit (corresponding to the pump stage of the present invention) 13. It is set to be sealed with. The pump stay unit 13 has a function of supporting the fuel pump 1 in the fuel tank 2.
つまり、前記ポンプステーユニット 13の下方部位には有底筒状部 13aが形成されて おり、該有底筒状部 13aの筒外周面には、外径側に突出するフランジ部 13bが形成 されている。そして、前記フランジ部 13bを、燃料タンク貫通孔 2bに突き当てて固定 することにより、有底筒状部 13aにより燃料タンク貫通 2aが封止状に覆蓋されるように 設定され、この状態において、有底筒状部 13aが燃料タンク 2の下方に突出状に配 設されるように構成されてレ、る。 That is, a bottomed cylindrical portion 13a is formed at a lower portion of the pump stay unit 13, and a flange portion 13b protruding to the outer diameter side is formed on the outer peripheral surface of the bottomed cylindrical portion 13a. ing. Then, the flange portion 13b is fixed by abutting against the fuel tank through hole 2b. By doing so, the bottomed cylindrical portion 13a is set so as to cover the fuel tank penetration 2a in a sealed manner, and in this state, the bottomed cylindrical portion 13a is disposed so as to protrude below the fuel tank 2. It is structured to be done.
さらに、ポンプステーユニット 13は、フランジ部 13bの上方部位であって、燃料タン ク 2内に嵌入する部位となる有底筒状部 13aの上側筒端縁から、周回り方向に所定 間隙を存して上方に延出する複数のステ一片 13cがー体形成されており、これらステ 一片 13cの上端部に、内径側に折曲する固定片 13dがー体形成されている。そして 、ポンプステーユニット 13は、燃料タンク 2内に配される燃料ポンプ 1の上側ブラケット 9に固定片 13dを固定させることにより、ステ一片 13cがヨーク 3に近接対向する状態 で、燃料ポンプ 1の支持をするように設定されており、これによつて、燃料ポンプ 1は、 燃料タンク 2内においてポンプ部 Pが下側となる起立姿勢で固定支持されている。  Further, the pump stay unit 13 has a predetermined gap in the circumferential direction from the upper cylinder end of the bottomed cylindrical part 13a which is an upper part of the flange part 13b and is a part fitted into the fuel tank 2. A plurality of stage pieces 13c extending upward are formed as a body, and a fixed piece 13d bent toward the inner diameter side is formed at the upper end of these stage pieces 13c. Then, the pump stay unit 13 fixes the fixed piece 13d to the upper bracket 9 of the fuel pump 1 disposed in the fuel tank 2, so that the stage piece 13c is in close proximity to the yoke 3 and the fuel pump 1 The fuel pump 1 is fixedly supported in a standing posture in which the pump part P is in the lower side in the fuel tank 2.
[0015] また、ポンプステーユニット 13の、燃料タンク 2から外部(下方)に突出する有底筒 状部 13aの内周面には、下側が小径となる段差部 13eが形成されており、該段差部 1 3eに、円板状の仕切りプレート 14が封止状、かつ、突き当て状に固定されており、該 仕切りプレート 14が、有底筒状部 13aの筒内を上下に仕切るように設定されている。 ここで、仕切りプレート 14は、燃料タンク 2の底辺 2aよりも下方に位置して配設されて おり、ステ一片 13c、固定片 13dにより起立状に支持される燃料ポンプ 1のポンプブラ ケット 10に対向するように設定されている。  [0015] Further, on the inner peripheral surface of the bottomed cylindrical portion 13a protruding outward (downward) from the fuel tank 2 of the pump stay unit 13, a step portion 13e having a small diameter on the lower side is formed. A disc-shaped partition plate 14 is fixed to the stepped portion 13 3e in a sealing and abutting manner, so that the partition plate 14 partitions the inside of the bottomed cylindrical portion 13a vertically. Is set. Here, the partition plate 14 is disposed below the bottom side 2a of the fuel tank 2, and faces the pump bracket 10 of the fuel pump 1 supported upright by the step piece 13c and the fixed piece 13d. It is set to be.
前記仕切りプレート 14には燃料フィノレタ 15が設けられており、燃料タンク底辺 2aの 貫通孔 2bを介して仕切りプレート 14の上方から有底筒状部 13a側に流れ込む燃料 は、燃料フィルタ 15配設部を経由して下方に流れ込むように設定され、これによつて 、有底筒状部 13aの仕切りプレート 14により仕切られた下方部位は、燃料フィルタ 15 により濾過された燃料が貯留する燃料供給部 13fに構成されている。  The partition plate 14 is provided with a fuel finisher 15, and the fuel flowing from the upper side of the partition plate 14 to the bottomed cylindrical portion 13 a side through the through hole 2 b of the fuel tank bottom 2 a is disposed in the fuel filter 15 installation portion. Accordingly, the lower portion of the bottomed cylindrical portion 13a partitioned by the partition plate 14 is a fuel supply portion 13f in which fuel filtered by the fuel filter 15 is stored. It is configured.
[0016] そして、ポンプブラケット 10に対向する仕切りプレート 14の外径側部位には、燃料 吸入部 10cに対向して筒状の吸入用誘導路 14aが上方に向けて突出形成されてい る。この吸入用誘導路 14aは、仕切りプレート 14に開設された貫通孔 14bを介して燃 料供給部 13fに連通して形成されており、該吸入用誘導路 14aの突出先端部が、前 記燃料ポンプ 1側の筒状の燃料吸入部 10c内に封止状に嵌入することにより連結さ れている。これによつて、燃料ポンプ 1のインペラ 11の回転に伴レ、、燃料吸入部 10c には、吸入用誘導路 14aを介して燃料供給部 13fに貯留された濾過された燃料が供 給されるように構成されてレ、る。 [0016] A cylindrical suction guide passage 14a is formed on the outer diameter side portion of the partition plate 14 facing the pump bracket 10 so as to face the fuel suction portion 10c and project upward. The suction guide passage 14a is formed in communication with the fuel supply portion 13f through a through hole 14b provided in the partition plate 14, and the projecting tip of the suction guide passage 14a has the above-described fuel. The pump 1 is connected by sealing it into the cylindrical fuel suction part 10c. It is. As a result, as the impeller 11 of the fuel pump 1 rotates, the fuel suction portion 10c is supplied with the filtered fuel stored in the fuel supply portion 13f via the suction guide passage 14a. It is structured as follows.
さらに、仕切りプレート 14の外径側には、ポンプブラケット 10の燃料吐出部 10dに 対向する部位に位置する外径側に吐出用貫通孔 14cが形成されている。前記吐出 用貫通孔 14cは、仕切りプレート 14を上下に貫通する貫通孔で構成され、燃料ボン プ 1側の燃料吐出部 10dが封止状に貫通するように設定されている。そして、前記吐 出用貫通孔 14cに嵌入する燃料吐出部 10dの貫通先端部は、有底筒状部 13aに形 成された排出誘導路 (本発明の誘導路に相当する) 13gに封止状に嵌入するように 設定されている。前記排出誘導路 13gは、有底筒状部 13aに形成された燃料供給部 13fとは仕切られ、該燃料供給部 13fに隣接する状態で形成されており、有底筒状 部 13aの底辺側から外径側に向けて延出するように形成されており、該排出誘導路 1 3gの延出端部に、エンジン側からの配管(図示せず)が連結されるように設定されて いる。  Further, on the outer diameter side of the partition plate 14, a discharge through hole 14 c is formed on the outer diameter side located at a portion facing the fuel discharge portion 10 d of the pump bracket 10. The discharge through hole 14c is configured as a through hole that vertically penetrates the partition plate 14, and is set so that the fuel discharge portion 10d on the fuel pump 1 side penetrates in a sealed manner. Then, the penetrating tip of the fuel discharge portion 10d fitted into the discharge through-hole 14c is sealed with a discharge guide passage (corresponding to the guide passage of the present invention) 13g formed in the bottomed tubular portion 13a. It is set to fit into the shape. The discharge guiding path 13g is partitioned from the fuel supply part 13f formed in the bottomed cylindrical part 13a, and is formed adjacent to the fuel supply part 13f. The bottom side of the bottomed cylindrical part 13a It is formed so as to extend toward the outer diameter side, and is set so that a pipe (not shown) from the engine side is connected to the extending end portion of the discharge guiding path 13g. .
[0017] また、ポンプステーユニット 13の燃料タンク 2から露出する有底筒状部 13aの外周 部であって、燃料タンク底辺 2cよりも下方部位には、図示しない外部力ブラが接続さ れて外部電源を入力するための力ブラ部 13hがー体形成されている。そして、力ブラ 部 13hを介して入力される外部電源は、該カブラ部 13hに植設された L字形の第一 端子プレート 16、上下方向を向く導電性プレート 16a、第二端子プレート 16bを介し 、燃料ポンプ 1の上側ブラケット 4に配されるブラシ 7に供給されるように設定されてい る。  [0017] Also, an external force bra (not shown) is connected to the outer peripheral portion of the bottomed cylindrical portion 13a exposed from the fuel tank 2 of the pump stay unit 13 and below the fuel tank bottom 2c. A force bra portion 13h for inputting an external power source is formed. Then, the external power input through the force bra portion 13h is transmitted through the L-shaped first terminal plate 16, the conductive plate 16a facing up and down, and the second terminal plate 16b. In addition, it is set so as to be supplied to the brush 7 disposed in the upper bracket 4 of the fuel pump 1.
[0018] さらに、本実施の形態の燃料ポンプ 1は、モータ部 Mを構成する上側ブラケット 4に 空気抜き手段としての圧力調整装置 17が設けられており、燃料ポンプ 1内の圧力が 所定圧力に達することで、燃料ポンプ 1内の燃料を燃料タンク 2側に排出して燃料ポ ンプ 1内の圧力を調整すると同時に、燃料ポンプ 1内に入り込んだ空気を外部に抜き 出すこと力 Sできるように構成されてレ、る。  [0018] Further, in the fuel pump 1 of the present embodiment, the upper bracket 4 constituting the motor unit M is provided with a pressure adjusting device 17 as an air vent means, and the pressure in the fuel pump 1 reaches a predetermined pressure. By adjusting the pressure in the fuel pump 1 by discharging the fuel in the fuel pump 1 to the fuel tank 2 side, it is possible to extract the air that has entered the fuel pump 1 to the outside. It has been done.
前記圧力調整装置 17は、上側ブラケット 4の上側面から下方に向けて凹溝状に形 成された凹穴 4cに設けられており、該凹穴 4cの溝底面に燃料タンク 2側に連通する よう開設された貫通孔 4dと、該貫通孔 4dを塞ぐ球状の弁体 17aと、該弁体 17aを貫 通孔 4d側に向けて弾圧し、弁体 17aにより貫通孔 4dを閉塞するように付勢する弾機 17bとを備えて構成されており、モータ部 M内に、弾機 17bの付勢力を上回る圧力が 作用することに伴い弁体 17cが開放し、貫通孔 4dを介してヨーク 3内の燃料が燃料タ ンク 2側に排出するように設定されている。 The pressure adjusting device 17 is provided in a recessed hole 4c formed in a recessed groove shape downward from the upper side surface of the upper bracket 4, and communicates with the bottom surface of the recessed hole 4c on the fuel tank 2 side. The through-hole 4d opened as described above, a spherical valve body 17a that closes the through-hole 4d, and the valve body 17a is elastically pressed toward the through-hole 4d, and the through-hole 4d is closed by the valve body 17a. The valve body 17c is opened when a pressure exceeding the urging force of the ammunition 17b is applied in the motor part M, and the yoke 17 is opened via the through hole 4d. The fuel in 3 is set to discharge to the fuel tank 2 side.
[0019] このように構成された燃料ポンプ 1において、力プラ部 13hに接続される外部カプラ [0019] In the fuel pump 1 configured as described above, an external coupler connected to the force plastic portion 13h
(図示せず)から第一端子プレート 16、導電性プレート 16a、第二端子プレート 16bを 介してブラシ 7に電源供給がなされると、ァーマチュア軸 5aが回転し、これに伴いイン ペラ 11がー体回転する。これによつて、燃料タンク 2から濾過された状態で燃料供給 部 13fに貯留されている燃料力 燃料吸入部 1 Ocを介してポンプ部 P内に吸入される 。この吸入された燃料は、インペラ羽根部 11aの対向部に形成された下側ブラケットリ ング状凹部 9dとポンプブラケットリング状凹部 10bとを流路とし、上側ブラケット 9のモ 一タ部側吐出部 9eおよびポンプブラケット 10の燃料吐出部 10dに誘導され、燃料誘 導路 13gを経由してエンジン側に誘導されるように設定されている。このとき、圧力調 整装置 17は閉鎖した状態となっており、燃料ポンプ 1内の圧力が高まることで開放し て、燃料を燃料タンク 2側に排出して、燃料ポンプ 1内の圧力を適宜調整するように 設定されている。  When power is supplied to the brush 7 from the first terminal plate 16, the conductive plate 16a, and the second terminal plate 16b (not shown), the armature shaft 5a rotates, and the impeller 11 The body rotates. As a result, the fuel is sucked into the pump part P through the fuel suction part 1 Oc stored in the fuel supply part 13f in a filtered state from the fuel tank 2. The sucked fuel flows through the lower bracket ring-shaped concave portion 9d and the pump bracket ring-shaped concave portion 10b formed in the opposite portion of the impeller blade portion 11a as a flow path, and the upper bracket 9 discharge portion on the motor side. 9e and the fuel discharge part 10d of the pump bracket 10 are set to be guided to the engine side via the fuel guide path 13g. At this time, the pressure adjusting device 17 is in a closed state, and is opened when the pressure in the fuel pump 1 increases, and the fuel is discharged to the fuel tank 2 side, and the pressure in the fuel pump 1 is appropriately adjusted. It is set to adjust.
[0020] そして、この場合に、燃料供給部 13fに貯留された燃料は、ポンプ部 Pのポンプブラ ケット 10に形成される燃料吸入部 10cから燃料吐出部 10dに至る部位を流路として 移動することになつていて、モータ部 Mのヨーク 3 (永久磁石 8)内周面とァーマチュア 5とのあいだに燃料流路が形成されることがなぐこれによつて、モータ部 Mのヨーク 3 (永久磁石 8)内周面とァーマチュア 5とのあいだの間隙をできる限り小さく設定するこ とができ、また、燃料流路がポンプ部 Pにおけるのみとなるので、その分、圧力損失を 低減できるように構成されている。また、燃料吐出部 10dは、ポンプステーユニット 13 の燃料供給部 13eに隣接して配された燃料誘導路 13gを介してエンジン側に誘導さ れる構成となっており、これによつて、従来の燃料供給装置のように、燃料ポンプの燃 料吐出部からエンジン側への配管を、燃料タンクから封止状に引き出すような複雑な 構成にする必要がなくなり、燃料供給装置のコンパクトィ匕が図れるように構成されて いる。 [0020] In this case, the fuel stored in the fuel supply unit 13f moves as a flow path from the fuel suction unit 10c formed in the pump bracket 10 of the pump unit P to the fuel discharge unit 10d. Therefore, a fuel flow path is not formed between the inner peripheral surface of the yoke 3 (permanent magnet 8) of the motor part M and the armature 5, so that the yoke 3 (permanent magnet) of the motor part M is formed. 8) The gap between the inner peripheral surface and armature 5 can be set as small as possible, and the fuel flow path is only at the pump part P, so the pressure loss can be reduced accordingly. Has been. Further, the fuel discharge part 10d is guided to the engine side through a fuel guide path 13g arranged adjacent to the fuel supply part 13e of the pump stay unit 13, and thus, Unlike the fuel supply device, the piping from the fuel discharge part of the fuel pump to the engine side does not need to be a complicated configuration that is pulled out from the fuel tank in a sealed manner, and the fuel supply device can be made compact. Configured as Yes.
[0021] 叙述の如く構成された本形態において、燃料供給装置を構成する燃料ポンプ 1は 、ァーマチュア軸 5aに設けたコンミテータ 6にブラシ 7が摺接する構成となっていて、 ァーマチュア 5の外周と、ヨーク 3内周面に設けた永久磁石 8の内周面とは互いに近 接した状態で設けられている。この場合に、燃料ポンプ 1は、起立状に設けられて下 側に位置するポンプ部 Pのポンプブラケット 10に、燃料吸入部 10cが上下方向を向く 状態で形成されているので、燃料タンク 2内の燃料を効率よく吸入できるうえ、燃料吐 出部 10dもポンプブラケット 10に形成される構成であるので、モータ部 M側に燃料が 充満しているものの、ヨーク 3内、即ち、永久磁石 8が固定されたヨーク 3内周面とァー マチュア 5外周面とのあいだに流路を形成する必要はなぐその分、ァーマチュア 5 の外周とヨーク 3内周面とが近接して設けられており、これによつて、燃料ポンプ 1のコ ンパクト化を図ることが可能となってレ、る。  [0021] In the present embodiment configured as described, the fuel pump 1 constituting the fuel supply device is configured such that the brush 7 is in sliding contact with the commutator 6 provided on the armature shaft 5a, and the outer periphery of the armature 5; The inner peripheral surface of the permanent magnet 8 provided on the inner peripheral surface of the yoke 3 is provided close to each other. In this case, since the fuel pump 1 is formed in a standing manner in the pump bracket 10 of the pump part P located on the lower side so that the fuel suction part 10c faces in the vertical direction, the fuel pump 1 Since the fuel discharge portion 10d is also formed in the pump bracket 10, the motor portion M side is filled with fuel, but the yoke 3, that is, the permanent magnet 8 is The outer periphery of the armature 5 and the inner peripheral surface of the yoke 3 are provided close to each other, as it is not necessary to form a flow path between the inner peripheral surface of the fixed yoke 3 and the outer surface of the armature 5. As a result, the fuel pump 1 can be made compact.
し力も、このものにおいて、燃料吐出部 10dがポンプ部 P側(下方)に形成されてい るので、エンジン側への流路を形成するための配管構成を、燃料タンク 2の内外を貫 通して外部に至るような配管を一切設ける必要がなくなり、しかも、燃料吐出部 10dか らエンジン側に至る燃料流路を短くすることができるので、部品点数の削減が可能と なるばかりでなぐ圧力損失を低減することができ、燃料供給装置の一層のコンパクト 化を図ることができるうえ、燃料タンク 2のコンパクトィ匕も可能となる。  In this case, since the fuel discharge part 10d is formed on the pump part P side (downward), the piping configuration for forming the flow path to the engine side is made to penetrate through the inside and outside of the fuel tank 2. It is not necessary to provide any piping that leads to the outside, and the fuel flow path from the fuel discharge part 10d to the engine side can be shortened, so that not only the number of parts can be reduced but also the pressure loss can be reduced. The fuel supply device can be made more compact and the fuel tank 2 can be made more compact.
また、このものでは、圧力調整装置 17がポンプ部 Pの径内に設けられているため、 さらなるコンパクトィ匕を図ることができる。  In this case, since the pressure adjusting device 17 is provided within the diameter of the pump part P, further compactness can be achieved.
[0022] さらに、本発明が実施されたものにおいて、燃料ポンプ 1はポンプステーユニット 13 のステ一片 13cと固定片 13dとにより燃料タンク 2内に支持されるが、この場合に、ポ ンプステーユニット 13には、燃料タンク 2の底辺 2aの貫通孔 2bを封止状に覆蓋する とともに、燃料タンク底辺 2aよりも下方に位置して有底筒状部 13aが形成されている。 そして、有底筒状部 13aに、燃料ポンプ 1の燃料吸入部 10cに供給するための燃料 を貯留する燃料供給部 13fが形成されている。これによつて、燃料ポンプ 1を支持す るステ一部材と、燃料供給部とを個別に設ける必要がなくなって、部品点数の削減、 構成の簡略化を図ることができる。しかも、燃料供給部 13fは、燃料タンク 2よりも下位 に位置しているので、燃料タンク 2の油面が変化してもその影響を受けることな 燃 料を燃料ポンプ 1に供給することができるうえ、燃料タンク 2内の燃料が少なくなつても 確実に燃料ポンプ 1に供給することができて、安定した燃料の供給が可能となる。そ のうえ、燃料タンク 2内の有効燃料の量を大きくすることができるので、燃料タンク 2の 一層の小型化を図ることが可能となる。 Further, in the embodiment of the present invention, the fuel pump 1 is supported in the fuel tank 2 by the step piece 13c and the fixed piece 13d of the pump stay unit 13, and in this case, the pump stay unit 13 covers the through hole 2b of the bottom 2a of the fuel tank 2 in a sealing manner, and a bottomed cylindrical portion 13a is formed below the fuel tank bottom 2a. A fuel supply portion 13f that stores fuel to be supplied to the fuel suction portion 10c of the fuel pump 1 is formed in the bottomed cylindrical portion 13a. As a result, there is no need to separately provide a steering member for supporting the fuel pump 1 and the fuel supply unit, and the number of parts can be reduced and the configuration can be simplified. Moreover, the fuel supply unit 13f is lower than the fuel tank 2. Therefore, it is possible to supply the fuel pump 1 with fuel that will not be affected even if the oil level in the fuel tank 2 changes, and to ensure that the fuel in the fuel tank 2 is low Therefore, the fuel can be supplied to the fuel pump 1 in a stable manner. In addition, since the amount of effective fuel in the fuel tank 2 can be increased, the fuel tank 2 can be further reduced in size.
[0023] さらに、このものでは、燃料供給部 13fに燃料フィルタ 15を設けて、燃料タンク 2から の燃料を濾過した状態で燃料供給部 13fに貯留するように構成したので、燃料フィル タ 15配設用のスペースを別途確保する必要がなレ、うえ、燃料フィルタ 15の形状を燃 料供給部 13fの大きさにあわせて大きくすることが可能となり、一層優れた燃料ボン プ 1とすること力 Sできる。  [0023] Further, in this apparatus, the fuel supply unit 13f is provided with the fuel filter 15 so that the fuel from the fuel tank 2 is filtered and stored in the fuel supply unit 13f. It is not necessary to secure a separate installation space, and the shape of the fuel filter 15 can be increased in accordance with the size of the fuel supply section 13f. S can.
[0024] し力も、このものにおいて、ポンプステーユニット 13には、燃料吐出部 10dからの燃 料の流路となる燃料誘導路 13gがー体に形成されているので、エンジン側への流路 のための配管が容易で、複雑な構成になることがなぐ燃料供給装置の小型化を図 ること力 Sできる。  [0024] In this case, the pump stay unit 13 is formed with a fuel guide path 13g as a fuel flow path from the fuel discharge portion 10d in the body, so that a flow path to the engine side is provided. Therefore, it is possible to reduce the size of the fuel supply system, which makes piping for the installation easy and does not require a complicated configuration.
[0025] そのうえ、このものでは、ポンプステーユニット 13に、ブラシ 7に外部電源を供給す るための外部力ブラを接続する力ブラ部 13hがー体に形成されているので、燃料供 給装置の構成の簡略化を一層図ることができ、コンパクト化に寄与できる。  [0025] In addition, in this device, since the force bra portion 13h for connecting an external force bra for supplying external power to the brush 7 is formed on the pump stay unit 13, the fuel supply device This can further simplify the configuration and contribute to downsizing.
[0026] 尚、本発明は前記実施の形態に限定されないことは勿論であって、モータ部を、ブ ラシレス型の電動モータを用いる構成としてもよぐこの場合でも、ヨーク内周面に配 されるステータコイル内周面とロータ外周面とのあいだの距離を小さくできてコンパク ト化が果せるうえ、燃料流路の短縮化を図ることが可能である。  [0026] The present invention is of course not limited to the above-described embodiment, and the motor portion may be configured to use a brushless type electric motor. Even in this case, the motor portion is disposed on the inner peripheral surface of the yoke. In addition, the distance between the inner peripheral surface of the stator coil and the outer peripheral surface of the rotor can be reduced to achieve compactness, and the fuel flow path can be shortened.
産業上の利用可能性  Industrial applicability
[0027] 本発明は、自動二輪車等の車両に搭載される燃料ポンプに有用であって、ヨーク 内に燃料流路を形成する必要がないため、ヨーク内周面とァーマチュア外面とを近 接して設けることができ、さらに、エンジン側への燃料流路を形成するための配管構 成を内外を貫通させて設ける必要がなぐ燃料流路を短くすることができるので、部 品点数の削減が可能となるば力りでなぐ圧力損失を低減することができることになつ て、燃料供給装置および燃料タンクのコンパクトィ匕を図ることができる。 [0027] The present invention is useful for a fuel pump mounted on a vehicle such as a motorcycle, and it is not necessary to form a fuel flow path in the yoke. Therefore, the yoke inner peripheral surface and the armature outer surface are brought close to each other. In addition, it is possible to shorten the fuel flow path that does not need to be provided through the inside and outside of the piping structure for forming the fuel flow path to the engine side, so the number of parts can be reduced. Therefore, the pressure loss caused by the force can be reduced, and the fuel supply device and the fuel tank can be made compact.

Claims

請求の範囲 The scope of the claims
[1] 燃料タンクの底辺に設けられる燃料ポンプを、ケース体の下部に内装されるポンプ 部と、ケース体の上部に内装されてポンプ部を駆動するモータ部とで構成するにあた り、ケース体のポンプ部側に、燃料をポンプ部内に吸入する燃料吸入部と、燃料をポ ンプ部の外部に吐出する燃料吐出部とを上下方向を向いて形成したことを特徴とす る燃料ポンプ。  [1] The fuel pump provided at the bottom of the fuel tank is composed of a pump part built in the lower part of the case body and a motor part built in the upper part of the case body to drive the pump part. A fuel pump characterized in that a fuel suction portion for sucking fuel into the pump portion and a fuel discharge portion for discharging fuel to the outside of the pump portion are formed on the pump portion side of the case body in the vertical direction. .
[2] 請求項 1において、燃料ポンプは、ポンプステーを介して燃料タンク内に支持され るものとし、該ポンプステ一には、燃料タンクに連通し、燃料タンク底辺よりも下方に 位置して燃料を貯留して吸入部に供給する燃料供給部が形成されている燃料ボン プ。  [2] In claim 1, the fuel pump is supported in the fuel tank via a pump stay, and the pump stage communicates with the fuel tank and is located below the bottom of the fuel tank. A fuel pump is provided with a fuel supply part that stores and supplies the fuel to the suction part.
[3] 請求項 2において、燃料供給部には燃料フィルタが設けられ、燃料タンクからの燃 料が濾過されて貯留されるように構成されてレ、る燃料ポンプ。  [3] The fuel pump according to claim 2, wherein the fuel supply unit is provided with a fuel filter, and the fuel from the fuel tank is filtered and stored.
[4] 請求項 2または 3の何れか一項において、ポンプステ一には、燃料吐出部から吐出 された燃料を外部に誘導する誘導路が形成されている燃料ポンプ。 [4] The fuel pump according to any one of claims 2 and 3, wherein the pump stage is formed with a guide path that guides the fuel discharged from the fuel discharge portion to the outside.
[5] 請求項 2、 3または 4の何れか一項において、ポンプステ一には、外部電源に接続 する力ブラ部が燃料タンク底辺よりも下方に突出して形成されている燃料ポンプ。 [5] The fuel pump according to any one of claims 2, 3, and 4, wherein a force bra connected to an external power source is formed on the pump stage so as to protrude downward from the bottom of the fuel tank.
[6] 請求項 1乃至 5の何れか一項において、モータ部はブラシ式の電動モータで構成さ れている燃料ポンプ。 6. The fuel pump according to any one of claims 1 to 5, wherein the motor unit is configured by a brush-type electric motor.
PCT/JP2006/313414 2005-07-06 2006-07-05 Fuel pump WO2007004676A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200680023879.5A CN101238284B (en) 2005-07-06 2006-07-05 Fuel pump
JP2007524093A JP4939412B2 (en) 2005-07-06 2006-07-05 Fuel supply device
BRPI0612100A BRPI0612100B1 (en) 2005-07-06 2006-07-05 fuel pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-197018 2005-07-06
JP2005197018 2005-07-06

Publications (1)

Publication Number Publication Date
WO2007004676A1 true WO2007004676A1 (en) 2007-01-11

Family

ID=37604535

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/313414 WO2007004676A1 (en) 2005-07-06 2006-07-05 Fuel pump

Country Status (4)

Country Link
JP (1) JP4939412B2 (en)
CN (1) CN101238284B (en)
BR (1) BRPI0612100B1 (en)
WO (1) WO2007004676A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012188985A (en) * 2011-03-10 2012-10-04 Aisan Industry Co Ltd Fuel feeding device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5777878B2 (en) * 2010-12-24 2015-09-09 株式会社ミツバ Fuel supply device
KR101579436B1 (en) * 2014-08-28 2015-12-24 최인섭 Apparatus for automatically controlling fuel supply pressure and fuel atomization for cars

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002303217A (en) * 2001-04-09 2002-10-18 Keihin Corp Fuel supply system
WO2003044357A1 (en) * 2001-11-20 2003-05-30 Mitsubishi Denki Kabushiki Kaisha Fuel supply system for vehicle
JP2004190491A (en) * 2002-12-06 2004-07-08 Hitachi Unisia Automotive Ltd Fuel feeding device
JP2006037870A (en) * 2004-07-28 2006-02-09 Aisan Ind Co Ltd Motor pump and fuel supply system equipped with motor pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH048761A (en) * 1990-04-27 1992-01-13 Mitsubishi Gas Chem Co Inc Polycarbonate resin composition
JP3213465B2 (en) * 1993-11-19 2001-10-02 株式会社ミツバ Fuel supply pump
WO2001066931A1 (en) * 2000-03-09 2001-09-13 Mitsuba Corporation Fuel feed device for engine
JP2004150273A (en) * 2002-10-28 2004-05-27 Keihin Corp Fuel supply module for engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002303217A (en) * 2001-04-09 2002-10-18 Keihin Corp Fuel supply system
WO2003044357A1 (en) * 2001-11-20 2003-05-30 Mitsubishi Denki Kabushiki Kaisha Fuel supply system for vehicle
JP2004190491A (en) * 2002-12-06 2004-07-08 Hitachi Unisia Automotive Ltd Fuel feeding device
JP2006037870A (en) * 2004-07-28 2006-02-09 Aisan Ind Co Ltd Motor pump and fuel supply system equipped with motor pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012188985A (en) * 2011-03-10 2012-10-04 Aisan Industry Co Ltd Fuel feeding device

Also Published As

Publication number Publication date
BRPI0612100B1 (en) 2019-01-22
BRPI0612100A2 (en) 2012-09-04
CN101238284B (en) 2013-02-06
CN101238284A (en) 2008-08-06
JP4939412B2 (en) 2012-05-23
JPWO2007004676A1 (en) 2009-01-29

Similar Documents

Publication Publication Date Title
US20050074343A1 (en) Electrically driven motors and pumps having such motors
CN102345610B (en) Fuel pump
US7874817B2 (en) Fuel pump assembly with a vapor purge passage arrangement for a fuel pump module
US10879762B2 (en) Actuator and pump using the actuator
JP5189998B2 (en) Fuel supply device
JP2012228178A (en) Fuel pump
JP4923123B2 (en) Fuel supply device
JPH11230076A (en) Fuel force feed unit
JP5048494B2 (en) Fuel supply device
WO2007004676A1 (en) Fuel pump
JP4637990B2 (en) In-tank fuel pump / reservoir assembly
JP2012031807A (en) Fuel pump
KR20000068133A (en) Fuel supply unit
KR101815931B1 (en) Brushless Direct Current Motor of Fuel Pump for Motor Vehicle
JP4922868B2 (en) Fuel supply device
JP4939413B2 (en) Fuel pump
JP4871400B2 (en) Fuel supply device
JP4074546B2 (en) Fuel pump
JP4587129B2 (en) Fuel pump and manufacturing method thereof.
JP2005110477A (en) Motor and pump
JP2008064029A (en) Fuel pump
JP2010038131A (en) Fuel supply device
KR20140018931A (en) Fuel injection system and tank installation unit for a fuel injection system
JP4978247B2 (en) Fuel pump
JP2009287394A (en) Fuel supply device

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680023879.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2007524093

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1200800320

Country of ref document: VN

WWE Wipo information: entry into national phase

Ref document number: 619/CHENP/2008

Country of ref document: IN

122 Ep: pct application non-entry in european phase

Ref document number: 06780790

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: PI0612100

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20071227