CN101070802A - Fuel supply system - Google Patents

Fuel supply system Download PDF

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Publication number
CN101070802A
CN101070802A CNA2007101032245A CN200710103224A CN101070802A CN 101070802 A CN101070802 A CN 101070802A CN A2007101032245 A CNA2007101032245 A CN A2007101032245A CN 200710103224 A CN200710103224 A CN 200710103224A CN 101070802 A CN101070802 A CN 101070802A
Authority
CN
China
Prior art keywords
fuel
controller
fuel system
conductive wall
receptacle portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007101032245A
Other languages
Chinese (zh)
Inventor
铃木信男
井上铁治
山本修司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry Co Ltd
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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Publication of CN101070802A publication Critical patent/CN101070802A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/46—Filters structurally associated with pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50—Filters arranged in or on fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03105—Fuel tanks with supplementary interior tanks inside the fuel tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03111—Swirl pots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03401—Arrangements or special measures related to fuel tanks or fuel handling for preventing electrostatic charges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump

Abstract

A fuel supply system includes a fuel pump disposed within the fuel tank A cover can close an opening formed in an upper portion of the fuel tank. A receptacle is provided on the cover. A controller can control the operation of a motor of the fuel pump. The controller includes an earth terminal and noise-generating electrical elements. The receptacle has an electrically conductive wall surrounding at least the electrical elements of the controller. The electrically conductive wall is electrically connected to the earth terminal of the controller.

Description

Fuel system
The cross reference of related application
The application requires the preference of Japanese patent application series 2006-132267, and its content is drawn at this and is reference.
Technical field
The present invention relates to a kind of fuel system, this system has the controller that is used to control motor, and described motor is applicable to the driving fuel pump.
Background technique
Known fuel system is for example open in Japanese Laid-Open patent disclosure No.8-177668.As shown in Figure 5, known fuel system comprises lid 104, thereby lid 104 is fixedly connected to the closed opening 1102 that is formed in the roof of the roof of fuel tank 101.Lid 104 is formed by resin, and comprises tubular portion 105, and tubular portion 105 extends in the inner space of fuel tank 101.Pump case 106 hangs from the lower end of tubular portion 105.Petrolift 107 is arranged in the pump case 106.The recess 105h that leads to fuel tank 101 outsides is formed in the tubular portion 105.The controller 108 that is used to control the motor of petrolift 107 is received in the recess 105h.
Controller 108 is based on the signal actuation switch element (not shown) that provides from ECU, thus the generation pulsed voltage, described voltage is provided for the fuel pump motor, thus the average voltage that is applied to the motor of petrolift 107 can be controlled.Therefore, the output of petrolift 107 is conditioned the feasible constant fuel pressure that keeps in the conveyance conduit 116, and wherein fuel injector 115 is connected to described delivery pipe 116.
, therefore in the actuation process of switching element, can produce noise because thereby controller 108 actuation switch elements produce pulsed voltage.In addition, because the lid 104 that controller 108 is arranged on is wherein formed by resin, so lid 104 can not absorb or reduce noise.As a result, need comprise the eliminator of the complexity of choke coil (choke coil) and capacitor, this causes cost to increase.
Therefore, need a kind of like this fuel system in the prior art, this system can effectively reduce possible noise, and described noise can be produced by the controller of petrolift motor.
Summary of the invention
Comprise the fuel system that is used for from the vehicle fuel tank fuel supplying according to an aspect of the present invention.The lid of the opening in the top that this system comprises the petrolift that is arranged in the fuel tank, can closed be formed on fuel tank, be arranged on the receptacle portion (receptacle) on the lid and can control the controller of the operation of fuel pump motor.Controller comprises grounding end and produces the electronic component of noise.Described receptacle portion has conductive wall, and described conductive wall is at least around the electronic component that can produce the Noise Control device.Described conductive wall is electrically connected to the grounding end of controller.
Utilize this set, can make the electronic component of generation noise and the exterior shield of receptacle portion.Therefore, can eliminate the influence of noise on other controller of vehicle, for example combustion engine control (ECU).In addition, do not need to use large-sized eliminator.
The electronic component that produces noise can comprise the conductor of resistance, capacitor, coil and switching element and circuit board.
In one embodiment, controller can be operated with the actuating by switching element and produce pulsed voltage, thereby control is applied to the average voltage of motor.
In another embodiment, the conductive wall of receptacle portion is formed by metal.Interchangeable is that conductive wall can be formed by the resin that comprises conductive material, perhaps can comprise resin layer and conductive material layer.
In another embodiment, fuel system also comprises spring, and described spring can flexibly keep the coupled condition between the grounding end of described conductive wall and controller.Utilize this set, the electrical connection between conductive wall and the grounding end can keep for a long time reliably, for example vibrates when external force simultaneously and can not cause unexpected disengaging when being applied to receptacle portion.
In another embodiment, receptacle portion extends in the inner space of fuel tank at least in part, thereby the fuel in the fuel tank can contact with receptacle portion.Utilize this set, can cool off receptacle portion and controller by fuel.
Another aspect of the present invention comprises the fuel system that is used in combination with fuel tank.This fuel system comprises the petrolift with motor, controller and the receptacle portion that is used to control motor, and described receptacle portion is admitted controller and is installed to described fuel tank.Receptacle portion comprises the noise shielding wall, and when controller produced noise, described noise shielding wall energy enough shielded noise.The noise shielding wall can be the conductive wall that centers on the part of controller at least.Therefore, can prevent that noise transmission from arriving the outside of receptacle portion.
In one embodiment, controller comprises grounding end, and this grounding end is electrically connected to the conductive wall of receptacle portion.
In another embodiment, controller comprises the IC chip with switch gear, thereby the actuating of pulsed voltage by switch gear produces, and offers motor.The IC chip is centered on by conductive wall.The IC chip can be installed to the circuit board that is arranged in the receptacle portion.
In another embodiment, controller also comprises noise filter circuit, and this circuit comprises choke coil and the capacitor that is installed to circuit board.Capacitor is centered on by conductive wall.
In another embodiment again, receptacle portion comprises first portion and second portion, and first portion extends to the outside of fuel tank, and second portion extends in the inner space of fuel tank.Second portion comprises conductive wall.
First portion can form with lid is whole, and second portion can become integral body by embedding forming method with first portion.
Description of drawings
After reading the following detailed description is together with claim and accompanying drawing, another object of the present invention, feature and advantage will be more readily understood, in the accompanying drawing:
Fig. 1 is the vertical sectional view of fuel system according to an embodiment of the invention;
Fig. 2 is the vertical sectional view of the amplification of the lid of fuel system or flange, and shows the sectional view of the line II-II intercepting in Fig. 3;
Fig. 3 is the planimetric map that combines the fuel tank of fuel system;
Fig. 4 is the illustrative circuitry structure of the controller of fuel system; With
Fig. 5 is the schematic representation of known fuel system.
Embodiment
Above reach hereinafter disclosed each additional features and can use individually or be used in combination, thereby improved fuel system is provided with further feature and instruction with instruction.Representative embodiment of the present invention is described in detail below with reference to the accompanying drawings, and example of the present invention can use many these additional features and instruction individually, also can be used in combination with another feature and instruction.This detailed description only is used to the detailed content of instructing those of ordinary skill in the art other, is used to implement the preferred aspect of this instruction, and is not used in and limits the scope of the invention.Only claim defines scope of the present invention.Therefore, the combination of disclosed feature and step needn't be implemented the present invention in a broad sense in describing in detail below, and is only instructed with special description representative example of the present invention on the contrary.In addition, each feature of representative example and dependent claims can be according to the mode combination of specifically not listing herein, thereby the other useful embodiment of this instruction is provided.
Describe according to one embodiment of present invention to Fig. 4 below with reference to Fig. 1.
The basic structure of＜fuel system 〉
Fuel system 10 is configured under the effect of pressure fuel is fed to the sparger (not shown) from fuel tank 11.As shown in Figure 1, fuel system 10 generally includes lid or the lid 30 that is arranged on the pump assembly 20 in the fuel tank 11 and has flange, and lid or lid 30 are used for the opening 13 that closure is formed on the upper wall of fuel tank 11.
Pump assembly 20 comprises oil-storing cup (reservoir cup) 21, petrolift 23, suction filter 24f, high pressure filter cleaner 25 and the pressure regulator 26 with upper opening.Oil-storing cup 21 is arranged in the fuel tank 11, and is arranged on the bottom of fuel tank 11.Petrolift 23 is arranged in the oil-storing cup 21.In this embodiment, petrolift 23 is configured to the pump of integration electric machine, and it has wing pump part and motor portion.The wing pump partial action is suction under pressure, pressurization and discharge fuel.Motor portion can the driven pump part.
Suction filter 24f is connected to the fuel inlet hole 23e of petrolift 23, filters thereby the fuel in the oil-storing cup 21 was inhaled into formula filter cleaner 24f before entering petrolift 23.Because the pump action of the impeller that rotates in pump chamber, fuel is sucked in the petrolift 23 by suction filter 24f and fuel inlet hole 23e, and pressurized in pump chamber.Pump chamber can be limited by groove (a plurality of), and described groove is formed in the pump part along the flow path of fuel.The fuel of pressurization flow in the motor portion then, thus fuel cool motors part.Equally, the fuel effect of pressurization is lubricated and cleans the rotary part of motor portion.Afterwards, the fuel of pressurization is discharged from by tap hole 23u, and tap hole 23u is arranged on the upper end of petrolift 23.The fuel of discharging from tap hole 23u is transported to high pressure filter cleaner 25 by discharging lateral line 24.High pressure filter cleaner 25 can be removed particle from fuel.Pass the motor part timesharing when fuel flows, particle can be included in the fuel.After passing high pressure filter cleaner 25, fuel pressure is adjusted to fit value by pressure regulator 26, and the external fuel supply tube (not shown) and the fuel-supply pipe (not shown) of the outside of fuel by being positioned at fuel tank 11 are further transported to sparger.Fuel is injected in the firing chamber (not shown) of internal-combustion engine then.
＜lid or flange 〉
Flanged lid or lid 30 are mainly formed by resin, and comprise flange body part 32 and receptacle portion 40.Flange body part 32 is applicable to the upper opening 13 of closed fuel tank 11.Receptacle portion 40 effects are to admit controller 50, and controller 50 can be controlled the operation of the motor of petrolift 23.As shown in Figure 3, flange body part 32 has the structure of plate-like.Cylindricality locator protrusions 32t is formed on the lower surface of flange body part 32, and is engaged in (see figure 1) in the upper opening 13 of fuel tank 11.In addition, retainer part 32p extends from the periphery edge of locator protrusions 32t, thereby is compressed against from the outside of fuel tank 11 on the edge section of upper opening 13 of fuel tank 11.
As shown in Figure 3, receptacle portion 40 is positioned near the edge section of lid 30, and extends up and down from lid 30, as shown in Figure 2.
Receptacle portion 40 has the structure of basic tubulose, and comprises the closed bottom and the top of opening, and described top is by lid 44 closures, thereby basic closed space boundary is in receptacle portion 40.More particularly, receptacle portion 40 has external lateral portion 41 and inside part 43.External lateral portion 41 outwards (is viewed as among Fig. 2 upwards) from flange body part 32 and extends.Inside part 43 inwardly (is viewed as among Fig. 2 downwards) from flange body part 32 and extends in the inner space of fuel tank 11.The connector 52 that is used for controller 50 is formed on the external transverse wall of external lateral portion 41.Opening 41k is formed on the top of external lateral portion 41 of receptacle portion 40, thereby makes controller 50 can insert in the receptacle portion 40.Thereby the lid that is formed from a resin 44 is connected to receptacle portion 40 closing any opening 41k.
Inside part 43 is configured to the bottom cylindrical housing, and can utilize conductive metallic material to form.Flange shape augmenting portion 43f is formed on the periphery of upper end of inside part 43, and can be incorporated into external lateral portion 41 when external lateral portion 41 is molded.Therefore, the inside part 43 with augmenting portion 43f inserts in the mould, and this mould is produced the external lateral portion 41 that is used for molded flange main body 32 and receptacle portion 40.Augmenting portion 43f is positioned in the part with the corresponding die cavity in underpart of external lateral portion 41.Therefore, augmenting portion 43f is inserted in the resin, and this resin forms the underpart of external lateral portion 41 by method of moulding.Like this, by the molding process of flange body part 32 and external lateral portion 41, external lateral portion 41 is whole to form the receptacle portion 40 of bottom cylindricality with 43 one-tenth of inside parts.
＜controller 〉
As shown in Figure 4, by electric coupler CN being connected to the connector 52 of receptacle portion 40, controller 50 can be electrically connected to combustion engine control (hereinafter referred to as " ECU "), and wherein electric coupler CN extends from ECU.Based on the signal Sg that provides from ECU, controller 50 activates the switching element (not shown) that is arranged on the IC chip 55.In response to the actuating of switching element, the voltage signal (being cell voltage Vb in the present embodiment) of motor M that is applied to the motor portion of petrolift 23 is switched to Kai Heguan, thereby produces pulse voltage signal.Therefore, can change the average voltage Vav that is applied to motor M based on signal Sg regulating impulse width or the value suitable with pulse width from ECU, thus the output of control motor M.Therefore, can keep the constant fuel pressure in the delivery pipe, wherein sparger is connected to described delivery pipe.In the embodiment shown in fig. 4, voltage Vb is the voltage as the battery of power supply, and also is the supply voltage of ECU.
Because thereby therefore controller 50 can produce noise by the actuating generation pulsed voltage of switching element in the actuation process of switching element.Therefore, eliminator 56 is arranged on the energy supply circuit P that is used for controller 50, thereby absorbs the noise that can produce at IC chip 55 places, thereby prevents that noise transmission from arriving the side of ECU.Eliminator 56 comprises choke coil 56t and capacitor 56c.Eliminator 56 and IC chip 55 are installed to circuit board 57 (see figure 2)s of controller 50.In Fig. 2, the grounding end of mark E indication circuit plate 57.
IC chip 55 also comprises the velocity measuring device (not shown).Velocity measuring device can be measured the rotating speed of motor M, and can output speed signal F, and this signal is provided for ECU and is used for feedback control.
The mounting structure of＜controller 〉
As shown in Figure 2, controller 50 is arranged in the receptacle portion 40 of lid 30 in such a way: promptly circuit board 57 is oriented to basic vertically extension.As mentioned above, IC chip 55, capacitor 56c and choke coil 56t are installed to circuit board 57.The part of IC chip 55, circuit board 57 and choke coil 56t is positioned in the inside part 43 of receptacle portion 40, and described inside part is formed by conductive metallic material.The leaf spring 57b that is formed by conductive material is connected to the grounding end E of circuit board 57, and between the inwall of circuit board 57 and inside part 43 resiliently deformable, thereby leaf spring 57b contacts with the inwall of inside part 43.Therefore, grounding end E and inside part 43 are electrically connected by leaf spring 57b.
In addition, though not shown in the accompanying drawings, the element with high thermal conductivity can be arranged between the inwall of circuit board 57 and inside part 43, thereby the heat that is produced by the switching element of IC chip 55 can easily be transmitted to inside part 43.Because fuel can contact with the outer surface of inside part 43, so fuel can cool off inside part 43.Therefore, fuel can be absorbed in the heat that IC chip 55 places produce.
The advantage of＜fuel system 〉
Fuel system 10 according to present embodiment, the conductive wall of the inside part 43 of receptacle portion 40 is around the electronic component of controller 50, described electronic component can produce noise, and comprises the switching element that is installed to IC chip 55 and be arranged near the IC chip 55 capacitor 56c.In other words, the conductive wall effect of the inside part 43 of receptacle portion 40 is electronic screening spares, is used to prevent that noise from propagating into the outside of receptacle portion 40 by inside part 43.Therefore, can reduce the influence of noise on ECU or other peripheral control unit.Will not be constructed with complicated structure by eliminator 50.As a result, can be reduced effectively, can not increased manufacture cost simultaneously by the The noise that controller 50 produces.
In addition, the conductive wall of inside part 43 or wall are electrically connected to the grounding end E of controller 50 by conduction leaf spring 57b.Therefore, the electrical connection between conductive wall and the grounding end E can keep for a long time reliably, simultaneously can for example not vibrate and causes unexpected disengaging owing to the external force that is applied to receptacle portion 40.
In addition, because the fuel in the fuel tank 11 can contact with the outer surface of inside part 43 in the inner space that extends to fuel tank 11, so fuel can cool off inside part 43, and finally can cooling settings controller 50 therein.
＜alternative embodiment 〉
The present invention can not be restricted to the foregoing description, but can revise in every way under the situation that does not break away from essence of the present invention.For example, in the above-described embodiments, the external lateral portion of receptacle portion 40 41 is formed by resin, and inside part 43 is formed by conducting metal.Yet external lateral portion 41 also can be formed by metal.
In addition, inside part 43 and/or external lateral portion 41 can be formed by resin, and described resin contains and is useful on the metallic dust that electric conductivity is provided.Can also utilize resin to form inside part 43 and/or external lateral portion 41, conductive material layer is formed on the inner wall surface simultaneously.
In addition, though lid 30 and pump assembly 20 are separated from one another in the above embodiments, lid 30 and pump assembly 20 can be integrated in the assembly.

Claims (20)

1. one kind is used for comprising from the fuel system of vehicle fuel tank fuel supplying:
Petrolift is arranged in the fuel tank;
Lid can closed be formed on the opening in the top of fuel tank, and wherein lid comprises receptacle portion; With
Controller can be controlled the operation of fuel pump motor, and its middle controller comprises grounding end and can produce the electronic component of noise;
Wherein receptacle portion has conductive wall, and described conductive wall centers on the electronic component of controller at least; With
Wherein, conductive wall is electrically connected to the grounding end of controller.
2. fuel system as claimed in claim 1 is characterized in that, controller can be operated with the actuating by switching element and produce pulsed voltage, thereby control is applied to the average voltage of motor.
3. fuel system as claimed in claim 1 is characterized in that the conductive wall of receptacle portion is formed by metal.
4. fuel system as claimed in claim 1 is characterized in that the conductive wall of receptacle portion is formed by the resin that comprises conductive material.
5. fuel system as claimed in claim 1 is characterized in that conductive wall comprises resin layer and conductive material layer.
6. each described fuel system as in the above-mentioned claim is characterized in that, comprises that also spring, spring are configured to flexibly to keep the coupled condition between the grounding end of conductive wall and controller.
7. as each described fuel system among the claim 1-5, it is characterized in that receptacle portion extends in the inner space of fuel tank at least in part, thereby the fuel in the fuel tank can contact with receptacle portion.
8. fuel system that is used in combination with fuel tank comprises:
Petrolift comprises motor;
Controller can be controlled motor; With
Receptacle portion can be admitted controller,
Wherein, receptacle portion is installed to fuel tank, and comprises the noise shielding wall, and described noise shielding wall energy enough shields the noise of controller.
9. fuel system as claimed in claim 8 is characterized in that the noise shielding wall comprises conductive wall, and described conductive wall centers on the part of controller at least.
10. fuel system as claimed in claim 9 is characterized in that,
Controller comprises grounding end; With
Grounding end is electrically connected to the conductive wall of receptacle portion.
11. fuel system as claimed in claim 10 is characterized in that, also comprises power spring, thereby described spring can provide being electrically connected between them with conductive wall and grounding end Elastic Contact.
12. as each described fuel system among the claim 9-11, it is characterized in that,
Controller comprises the IC chip, and the IC chip comprises switch gear, thereby pulsed voltage is passed through the actuating generation of switch gear, and is supplied to motor; With
The IC chip is centered on by conductive wall.
13. fuel system as claimed in claim 12 is characterized in that,
The IC chip is installed to the circuit board that is arranged in the receptacle portion.
14. fuel system as claimed in claim 13 is characterized in that,
Controller also comprises noise filter circuit, and eliminator comprises choke coil and the capacitor that is installed to circuit board; With
Capacitor is centered on by conductive wall.
15., it is characterized in that the conductive wall of receptacle portion is formed by metal as each described fuel system among the claim 9-11.
16., it is characterized in that the conductive wall of receptacle portion is formed by electroconductive resin as each described fuel system among the claim 9-11.
17., it is characterized in that conductive wall comprises resin layer and conductive material layer as each described fuel system among the claim 9-11.
18. fuel system as claimed in claim 9 is characterized in that,
Fuel tank has opening, the connection between the inner space of opening permission fuel tank and the outside of fuel tank;
Fuel system also comprises lid, and cover configuration becomes the opening of closed fuel tank; With
Receptacle portion is arranged on the lid.
19. fuel system as claimed in claim 18 is characterized in that,
Receptacle portion comprises first portion and second portion, and first portion extends to the outside of fuel tank, and second portion extends in the inner space of fuel tank; With
Second portion comprises conductive wall.
20. fuel system as claimed in claim 19 is characterized in that, first portion and lid are whole to be formed, and second portion becomes integral body with first portion by the embedding forming method.
CNA2007101032245A 2006-05-11 2007-05-10 Fuel supply system Pending CN101070802A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP132267/2006 2006-05-11
JP2006132267A JP2007303360A (en) 2006-05-11 2006-05-11 Fuel supply device

Publications (1)

Publication Number Publication Date
CN101070802A true CN101070802A (en) 2007-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101032245A Pending CN101070802A (en) 2006-05-11 2007-05-10 Fuel supply system

Country Status (4)

Country Link
US (1) US20070284006A1 (en)
JP (1) JP2007303360A (en)
CN (1) CN101070802A (en)
DE (1) DE102007021584A1 (en)

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CN107250522A (en) * 2015-04-23 2017-10-13 株式会社电装 Fuel supply system

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US8869775B2 (en) * 2010-02-09 2014-10-28 Denso Corporation Fuel supply apparatus
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