CN100510376C - Fuel-feeding device for two-wheeled motor vehicle - Google Patents

Fuel-feeding device for two-wheeled motor vehicle Download PDF

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Publication number
CN100510376C
CN100510376C CNB2004800012732A CN200480001273A CN100510376C CN 100510376 C CN100510376 C CN 100510376C CN B2004800012732 A CNB2004800012732 A CN B2004800012732A CN 200480001273 A CN200480001273 A CN 200480001273A CN 100510376 C CN100510376 C CN 100510376C
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CN
China
Prior art keywords
fuel
fuel tank
petrolift
mentioned
distribution tube
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Expired - Lifetime
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CNB2004800012732A
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Chinese (zh)
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CN1705816A (en
Inventor
铃木贡
平一成
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Yamaha Motor Co Ltd
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Yamaha Motor Co Ltd
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Publication of CN1705816A publication Critical patent/CN1705816A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J35/00Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J37/00Arrangements of fuel supply lines, taps, or the like, on motor cycles or engine-assisted cycles
    • 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
    • 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
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32Arrangements 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
    • F02M37/50Filters arranged in or on fuel tanks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

In a fuel-feeding device for a two-wheeled motor vehicle, a fuel tank (20) is mounted on a main pipe (6a)(vehicle body frame) extending in the forward-backward direction of the vehicle, a tunnel-like recess portion (22a) through which the main pipe (6a) is inserted is formed in the central portion in the vehicle width direction of a lower tank (bottom wall portion)(22) of the fuel tank (20), and a fuel pump (26) for feeding a fuel to the engine is provided in the fuel tank (20). The fuel pump (26) is provided at a bottom center portion (22b) such that the axis (L) of the pump (26) is oriented in the forward-backward direction of the vehicle, and a fuel filter (27) is provided at a bottom side portion (22c) that is a step below the level of the fuel pump.

Description

The fuel supplying device of automatic two-wheeled cycle
Technical field
The present invention relates in a kind of saddle type fuel tank on being loaded into the automatic two-wheeled cycle vehicle frame fuel supplying device that petrolift forms is set.
Background technique
On the automatic two-wheeled cycle in recent years, comprising by Fuelinjection nozzle of having will be sprayed the fuel supplying device that is supplied to motor by the fuel after the petrolift pressurization.In this case, though can consider petrolift is arranged on the fuel tank outside, but, in case be provided with like this, must guarantee to be attached to the regulator tightness on every side on the petrolift, and be provided for making the pipe arrangement that returns fuel tank from the fuel under high pressure of this regulator, therefore be difficult to guarantee above-mentioned configuration space.Thereby, petrolift was configured in the fuel tank in the past always and (opened communique 2002-No. 293281) with reference to the spy.
Above-mentioned when petrolift is configured in structure in the fuel tank when adopting, according to the configuration position situation of this petrolift, it is big that fuel tank height and fuel tank width become, thereby cause the fuel tank maximization.For example, as described in above-mentioned communique, when adopting the structure that petrolift is erected on the diapire central part that is arranged on saddle type fuel tank, may cause the fuel tank height to become big.
Summary of the invention
The present invention promptly In view of the foregoing makes, and its objective is provides a kind of fuel supplying device that can prevent the automatic two-wheeled cycle that petrolift maximizes when being configured in petrolift in the fuel tank.
The fuel supplying device of the automatic two-wheeled cycle in the scheme 1, on the vehicle frame that extends along the vehicle fore-and-aft direction, load fuel tank, and in described fuel tank, petrolift is set, this petrolift forms the tunnel-like recess of inserting logical described vehicle frame on the overall width direction central part of this fuel tank bottom wall portion, and to the motor fueling, it is characterized in that: described petrolift is arranged on the described bottom wall portion, and the axis that makes this petrolift is towards the vehicle fore-and-aft direction.
The invention of scheme 2, on the basis of scheme 1, it is characterized in that: described petrolift is arranged on the end central part of the described recess that forms described fuel tank bottom wall portion, the described recess side that the fuel filter that will have a suction port is arranged on described bottom wall portion has on the bottom side of jump, connects the suction port of this fuel filter and the attraction mouth of described petrolift by fuel distribution tube.
The invention of scheme 3, on the basis of scheme 2,, it is characterized in that: described fuel distribution tube is arranged on the outside of described fuel tank.
The invention of scheme 4 on the basis of scheme 2, is characterized in that: described fuel distribution tube is arranged in the described fuel tank.
The invention of scheme 5, on the basis of scheme 4, it is characterized in that: described fuel distribution tube constitutes by having flexible material, this fuel distribution tube is drawn out to the fuel tank outside in the fuel tank and is connected on the described fuel filter, from fuel tank foreign side fuel filter is installed on the described bottom wall portion in this state.
The invention of scheme 6 on the basis of scheme 4, is characterized in that: described fuel distribution tube supports described fuel filter by constituting by the material with rigidity that described petrolift supported by described fuel distribution tube suspention.
The fuel supplying device of the automatic two-wheeled cycle of scheme 7 is identical with scheme 1, on the vehicle frame that extends along the vehicle fore-and-aft direction, load fuel tank, and in described fuel tank, petrolift is set, this petrolift forms the tunnel-like recess of inserting logical described vehicle frame on the overall width direction central part of this fuel tank bottom wall portion, and to the motor fueling, it is characterized in that: described petrolift is arranged on the described bottom wall portion with jump of described recess side of described bottom wall portion, the axis that makes this petrolift is towards the vehicle fore-and-aft direction.
The invention of scheme 8 on the basis of scheme 7, is characterized in that: the fuel filter one is connected on the attraction mouth of described petrolift.
The invention of scheme 9 on each the basis, is characterized in that in scheme 2~6,8: the suction port at described fuel filter partly is provided with liquid level sensor, when input shows the warning of fuel surplus during from the checkout value of this liquid level sensor and constitutes.
The invention of scheme 10 on the basis of scheme 9, is characterized in that: independently be provided with the fuel-storage cell that is used to store small amount of fuel in the suction port of described fuel filter part, and described liquid level sensor be set in that this bunkering is indoor.
The fuel supplying device of the automatic two-wheeled cycle of scheme 11, support fuel tank by the vehicle frame that extends along the vehicle fore-and-aft direction, and in described fuel tank, be provided for petrolift to the motor fueling, it is characterized in that: form the end central part be positioned at overall width direction central authorities on the bottom wall portion of described fuel tank and be positioned at this central part the overall width direction the side and be in above-below direction below bottom side, on this bottom side, form opening, and can freely stop up described opening by plate with loading and unloading, its axis roughly is arranged on described petrolift on the fuel tank inner side surface of this plate along the vertical direction.
The invention of scheme 12, on the basis of scheme 11, it is characterized in that: described plate and described bottom side between clamping sealed member and can be installed on the case outer side surface of this bottom side by assembly with freely loading and unloading, when the vehicle fore-and-aft direction is seen, be positioned at the outermost assembly of overall width direction and have at least a part to be arranged on the position that roughly overlaps with the overall width direction outermost part of described sealed member.
The invention of scheme 13 on the basis of scheme 12, is characterized in that: when the vehicle fore-and-aft direction is seen, be positioned at outermost all assemblys of described overall width direction and be arranged on the position that roughly overlaps with the overall width direction outermost part of described sealed member.
Description of drawings
Fig. 1 is the side view of automatic two-wheeled cycle that possesses the fuel supplying device of first embodiment of the invention;
Fig. 2 is the side view of the fuel tank of above-mentioned fuel supplying device;
Fig. 3 is the sectional view of above-mentioned fuel tank;
Fig. 4 is arranged on the general profile chart of the petrolift in the above-mentioned fuel tank;
Fig. 5 is the skeleton diagram of the fuel filter of above-mentioned petrolift;
Fig. 6 is the skeleton diagram of fuel filter of fuel-storage cell that possesses a mode of execution of scheme 10;
Fig. 7 is the skeleton diagram of fuel filter that possesses the fuel-storage cell of another mode of execution outside the above-mentioned mode of execution;
Fig. 8 is the sectional view of fuel tank of the 1st variation of above-mentioned first mode of execution;
Fig. 9 is the sectional view of fuel tank of the 2nd variation of above-mentioned first mode of execution;
Figure 10 is the sectional view of above-mentioned fuel tank;
Figure 11 is the sectional view of fuel tank of the 3rd variation of above-mentioned first mode of execution;
Figure 12 is the side view of fuel tank of the 2nd mode of execution of scheme 4,5;
Figure 13 is the sectional view of above-mentioned fuel tank;
Figure 14 is arranged on the general profile chart of the petrolift unit in the above-mentioned fuel tank;
Figure 15 is the general profile chart of petrolift unit of the 3rd mode of execution of scheme 6;
Figure 16 is the side view of fuel tank of the 4th mode of execution of scheme 7,8;
Figure 17 is the sectional view of above-mentioned fuel tank;
Figure 18 is arranged on the general profile chart of the petrolift unit in the above-mentioned fuel tank;
Figure 19 is the sectional view of fuel tank of petrolift unit that possesses the 5th mode of execution of scheme 11~13;
Figure 20 is the plan view of above-mentioned petrolift unit;
Figure 21 is the side view of above-mentioned petrolift unit;
Figure 22 is the worm's eye view of above-mentioned petrolift unit;
Figure 23 is the plan view of the variation of the above-mentioned petrolift of expression unit;
Figure 24 is the side view of the variation of the above-mentioned petrolift of expression unit.
Embodiment
Hereinafter introduce embodiments of the present invention in conjunction with the accompanying drawings.
Fig. 1~Fig. 5 is the figure of fuel supplying device that is used to illustrate the automatic two-wheeled cycle of an embodiment of the present invention (the 1st mode of execution); Fig. 1 is the side view of automatic two-wheeled cycle that is provided with the fuel supplying device of present embodiment, and Fig. 2, Fig. 3 are respectively the side view and the sectional views of fuel tank, and Fig. 4 is the general profile chart of petrolift, and Fig. 5 is the skeleton diagram of fuel filter.
In above-mentioned accompanying drawing, 1 expression automatic two-wheeled cycle, its vehicle frame 2 comprises and is mounted with motor 3 and supports front fork 4 and the main car frame 6 of postbrachium 5, the seat guide rail 8 that is mounted with seat 7 and seat stay 9.
Above-mentioned front fork 4 is by head pipe 10 pivot suspensions that are fixed on above-mentioned main car frame 6 front ends, at the lower end of this front fork 4 axle supporting front-wheel 11, and in the upper end fixing steering tiller 12.And, can swing up and down the above-mentioned postbrachium 5 of ground pivot suspension by the rear end of above-mentioned main car frame 6, and at the rear end of this postbrachium 5 axle supporting wheels 13.
Above-mentioned main car frame 6 comprises that 1 of managing from the beginning that 10 upper end portions extend after tiltedly to vehicle downwards is responsible for 6a, from the beginning manages the gusset 14 that 1 down tube 6b and the one of showing greatly to the vehicle rear lower side that straight line shape extends in 10 underparts engage above-mentioned head pipe 10, are responsible for 6a and down tube 6b.Above-mentioned person in charge 6a has and from the beginning manages 10 case rail portion 6c that extend with straight line shape and the postbrachium bracket part 6d that is bent downwardly extension from this case rail portion 6c rear end, and above-mentioned postbrachium 5 pivot suspensions are on this postbrachium bracket part 6d.
Support above-mentioned motor 3 by above-mentioned person in charge 6a and down tube 6b suspention, make bent axle 3a towards vehicle-width direction.And respectively gas exhaust manifold 15 is connected on the antetheca of cylinder head 3b of motor 3, induction mnifold 16 is connected on the rear wall of cylinder head 3b of motor 3.
Fuel tank 20 is loaded on the case rail portion 6c of above-mentioned person in charge 6a, above-mentioned seat 7 is loaded on the seat guide rail 8 of these fuel tank 20 rear sides.The front part 7a of this seat 7 covers the ear end face of fuel tank 20.
Above-mentioned fuel tank 20 is engaged with each other the periphery that slightly is the nowel 22 of bowl-shape top box 21 and plate-like and forms fuel inlet 21a on above-mentioned top box 21 by welding, can stop up this fuel injection 21a by fuel cap 23 with opening and closing.
Cave in upward on the vehicle-width direction central part of above-mentioned nowel 22 and form recess 22a, the case rail portion 6c of above-mentioned person in charge 6a inserts and leads in this recess 22a.Nowel 22 forms following shape from this recess 22a: have the end central part 22b that constitutes the wide cut plat surface and have bottom side 22c, the 22c of jump in the side to the left and right from end central part 22b.And when the vehicle side was seen, above-mentioned end central part 22b gently tilted with straight line shape and with respect to case rail portion 6c to the oblique rear lower side of vehicle.Between end central part 22b and above-mentioned case rail portion 6c, be provided with thus, and on this part, dispose vehicle-mounted part (not shown) than large-spacing.And above-mentioned left and right sides bottom side 22c roughly has identical height.
The fuel supplying device of present embodiment comprises: Fuelinjection nozzle 25, be installed near the intakeport of above-mentioned induction mnifold 16, and in this induction mnifold 16, spray fueling; Petrolift unit 26 is used for supplying with fuel under high pressure in this Fuelinjection nozzle 25; Fuel filter 27 is used to filter the fuel that is attracted to the fuel tank 20 in the petrolift unit 26; And not shown controller, according to fuel injection amount and the discharge time of the operating condition of motor 3 control from Fuelinjection nozzle 25.In detail, form following structure.
Above-mentioned petrolift unit 26 is accommodated and is arranged in the fuel tank 20, as shown in Figure 4, forms substantially and shell 31 one is fixed on the mounting flange 30 and drive motor 32 is built in structure in this shell 31.
On above-mentioned shell 31, form pump chamber 31a, the rotor of being fixed on the running shaft 32a of drive motor 32 33 is set in this pump chamber 31a.Side at pump chamber 31a forms attraction path 31b continuously respectively, forms ejection path 31c continuously at opposite side.
The upstream extremity of this attraction path 31b is communicated with the suction tube 34 in the case outside that is connected above-mentioned mounting flange 30.Be connected with fuel distribution tube 40 on this suction tube 34, this fuel distribution tube 40 links to each other with above-mentioned fuel filter 27.
The downstream of above-mentioned ejection path 31c is communicated with the spraying pipe 35 in the case outside that is connected mounting flange 30.Be connected with ejection flexible pipe 36 on spraying pipe 35, this ejection flexible pipe 36 links to each other with above-mentioned Fuelinjection nozzle 25.And be provided for fuel is adjusted into the pressure regulator 37 of authorized pressure in the centre of above-mentioned ejection path 31c, and on this pressure regulator 37, be formed for making residual fuel to turn back to return path 31d in the fuel tank 20 continuously via safety check 38.
Above-mentioned fuel filter 27 is connected filter body 27a on the mounting flange 41, and connects the suction pipe 42 that is communicated with filter body 27a in the case outside of mounting flange 41, and above-mentioned fuel distribution tube 40 is connected on the suction pipe 42.
And, near the suction pipe 42 of above-mentioned filter body 27a, be provided as the thermistor 43 of liquid level sensor.This thermistor 43 is immersed in the fuel usually, in case level of fuel descends thermistor 43 is exposed, and then detects temperature variation, and to above-mentioned controller output fuel surplus warning signal.Controller carries out the residual warning of fuel according to the input of warning signal and shows.For example light the fuel emergency warning lamp, or warning buzzer is rung.
Above-mentioned petrolift unit 26 is arranged on the rearward end of the end central part 22b in the fuel tank 20, makes its axis L, promptly lay across along end central part 22b towards the vehicle fore-and-aft direction.Above-mentioned fuel filter 27 erects on the fore-and-aft direction central part that is arranged on bottom side 22c.
Part relative with the petrolift unit 26 of above-mentioned end central part 22b forms the construction opening 22e less than mounting flange 30 profiles.Above-mentioned petrolift unit 26 is inserted into shell 31 in the construction opening 22e from the fuel tank below, and make mounting flange 30 and above-mentioned opening 22e outer side portion butt by not shown sealed member, can petrolift unit 26 releasably be fastened on the end central part 22b by a plurality of bolts 45 in this state.
Part relative with the fuel filter 27 of above-mentioned bottom side 22c forms the construction opening 22f less than mounting flange 41 profiles.Above-mentioned fuel filter 27 is inserted into filter body 27a in the construction opening 22f from the fuel tank below, and make mounting flange 41 and above-mentioned opening 22f outer side portion butt by not shown sealed member, can fuel filter 27 releasably be fastened on the bottom side 22c by a plurality of bolts 46 in this state.Roughly fuel distribution tube 40 is arranged on the outside, below of nowel 22, and outside case, is connected on above-mentioned suction pipe 42 and the spraying pipe 34 along recess 22a.
Hereinafter the action effect to present embodiment describes.
Fuel supplying device according to present embodiment, owing to being laid across, petrolift unit 26 is configured on the fuel tank 20 interior end central part 22b, make its axis L towards the vehicle fore-and-aft direction, and fuel filter 27 is arranged on end central part 22b has on the bottom side 22c of jump, so can effectively utilize the space in the fuel tank 20 to dispose petrolift unit 26 and fuel filter 27, and can not make fuel tank height and fuel tank width become big, thereby can prevent that fuel tank 20 from maximizing.
And, owing to above-mentioned petrolift unit 26 is arranged on the end central part 22b of the plat surface that forms broad,, can prevent that thus fuel tank 20 from maximizing so be easy to guarantee configuration space and the mating face is installed.
Because above-mentioned fuel filter 27 is arranged on the bottom side 22c, the dead amount of the fuel that can't attract so can eliminate when petrolift unit 26 being arranged on eminence in the case, thus can use fuel not lavishly.And fuel filter 27 can be pulled down from fuel tank 20, and fuel tank 20 need not be pulled down from vehicle frame, thereby be convenient to carry out the maintenance operations such as replacing of filter core.
In the present embodiment, because fuel distribution tube 40 is arranged on the outer side-lower of fuel tank 20, thus can carry out the connection operation of fuel distribution tube 40 from the case outside, thus operability improved.
Owing to make the suction pipe 42 of above-mentioned fuel filter 27 be positioned at the case outside, so can under the state that connects fuel distribution tube 40, dismantle fuel filter 27, and can easily keep in repair with filter and change, and can suck all fuel, thus fuel used lavishly not.
In the present embodiment, owing near the suction pipe 42 of above-mentioned fuel filter 27, thermistor 43 is set, and carry out the warning of fuel surplus in input during from the checkout value of thermistor 43 and show, so can use fuel to greatest extent, and can before soon can't travelling, inform the jockey.
Fig. 6, Fig. 7 are the figure of configuration structure example of liquid level sensor of a mode of execution of representation scheme 10, and in the drawings, the label identical with Fig. 5 represented identical or suitable with it part.
Being exemplified as among Fig. 6: be independent of fuel tank 20 ground capacity is set is fuel-storage cell 50 about 50~100cc in the case of mounting flange 41 outside, connect suction pipe 42 in the bottom of fuel-storage cell 50, and on lower surface, thermistor 43 is set as the mounting flange 41 of ceiling portion.When the liquid level of the fuel in being stored in fuel-storage cell 50 usually descended, then thermistor 43 exposed and detects temperature variation, and output fuel surplus warning signal.
Fig. 7 is exemplified as: as mentioned above, form fuel-storage cell 50 independently continuously in the outside of mounting flange 41, and float switch 51 is arranged in the fuel-storage cell 50.When the liquid level of the fuel in the fuel-storage cell 50 descends, then float switch 51 actions, output fuel surplus warning signal.In above-mentioned arbitrary topology example, can both use fuel to greatest extent, and can carry out the warning of fuel surplus accurately.
Fig. 8 is the figure of the 1st variation of the above-mentioned mode of execution of expression, and in the drawings, the label identical with Fig. 3 represented identical or suitable with it part.
This 1st variation is: petrolift unit 26 is set on central part 22b at the bottom of the fuel tank, and respectively fuel filter 27,27 is set on left and right sides bottom side 22c, 22c.Fuel distribution tube 40 is connected on the suction pipe 42 of each fuel filter 27,27, and each fuel distribution tube 40 is communicated with the T font suction tube 34 of petrolift unit 26.
According to the 1st variation, owing on the bottom side 22c of the left and right sides, fuel filter 27 is set respectively, and each fuel filter 27 is connected on the petrolift unit 26 by fuel distribution tube 40, so can drink up by the fuel of petrolift unit 26, thereby can further guarantee fully to use fuel with left and right sides bottom side 22c.
And, can be easy to carry out the maintenance operation of fuel filter 27.
Fig. 9 and Figure 10 are the figure of the 2nd variation of the above-mentioned mode of execution of expression.In the drawings, identical with Fig. 2 and Fig. 3 label is represented identical or suitable with it part.
Being exemplified as of the 2nd variation: petrolift unit 26 is arranged on the end central part 22b of fuel tank 20, from the case outside suction pipe 42 is connected on the bottom side 22c, and fuel filter 56 is connected the outside of suction pipe 42 by open and close valve 55.
On above-mentioned open and close valve 55, form fuel inflow path 55a that is communicated with suction pipe 42 and the outflow pathway 55b that is communicated with fuel distribution tube 40, and open and close valve 55c, 55d are set on individual channel 55a, 55b respectively.On each open and close valve 55c, 55d, fix shared valve shaft 55e, and on this valve shaft 55e, cock 55f is installed.
When manually making cock 55f turn to the enable possition, then the fuel in the fuel tank 20 flow in the fuel filter 56 by inflow path 55a and filters, and attracted in the petrolift unit 26 via fuel distribution tube 40 by outflow pathway 55b from this fuel filter 56.When cock 55f is turned to closed position, then flow into path 55a and outflow pathway 55b closes simultaneously.Can in fuel tank 20, remain under the state that fuel is arranged dismounting fuel filter 56 thus, and can be easy to keep in repair, filter changes.
Figure 11 is exemplified as: as mentioned above, fuel filter 27 is arranged on the downside wall 22c with the opposite side of downside wall 22c that above-mentioned fuel filter 56 is set, by fuel distribution tube 40 fuel filter 27 is connected on the petrolift unit 26.In this example, can in fuel tank 20, remain the filter core of refuelling filter 56 under the state that fuel is arranged, and can guarantee to use to greatest extent fuel.
Figure 12~Figure 14 is the figure of the fuel supplying device of the mode of execution (the 2nd mode of execution) that is used for explanation scheme 4, scheme 5.In the drawings, identical with Fig. 2~4 label is represented identical or suitable with it part.
In the present embodiment, petrolift unit 26 is set on central part 22b at the bottom of the fuel tank, and fuel filter 27 is set on bottom side 22b, connect this fuel filter 27 and petrolift unit 26 by having flexible fuel distribution tube 60, and this fuel distribution tube 60 is arranged in the above-mentioned fuel tank 20.
According to following order above-mentioned fuel distribution tube 60 is set.Fuel distribution tube 60 is connected in advance on the suction tube 34 of petrolift unit 26, petrolift unit 26 is inserted into from construction opening 22e with this fuel distribution tube 60 is installed in the fuel tank on the end central part 22b.Construction opening 22f from bottom side 22c draws fuel distribution tube 60 to the case outside then, and is connected on the suction pipe 42 of fuel filter 27.In this state, insert fuel filter 27 and be installed on the bottom side 22c from construction opening 22f.
In the present embodiment, because fuel distribution tube 60 is arranged in the fuel tank 20,, thereby can improve aesthetic appearance so the fuel tank outside can not need pipe arrangement.
Above-mentioned fuel distribution tube 60 constitutes by having flexible material, in advance this fuel distribution tube 60 is connected on the petrolift unit 26, petrolift unit 26 is installed in the case, afterwards, fuel distribution tube 60 is drawn out to the case outside, and be connected on the fuel filter 27, owing in this state fuel filter 27 is installed on the bottom wall portion 22c, so can easily in the case of fuel distribution tube 60, be configured operation.
Figure 15 is the figure of the fuel supplying device of the mode of execution (the 3rd mode of execution) that is used for explanation scheme 6.In the drawings, identical with Figure 14 label is represented identical or suitable with it part.
In the present embodiment, support the metallic fuel distribution tube 63 with rigidity by petrolift unit 26, fuel filter 64 is supported in suspention on this fuel distribution tube 63.
Above-mentioned fuel distribution tube 63 is communicated with the attraction path 31b of the shell 31 of petrolift unit 26, and is fixed on the shell 31 by anchor clamps 65.And fuel filter 64 is fastened on the upstream port of fuel distribution tube 63, and is arranged near on the position of bottom side 22c bottom surface.
In the present embodiment, because will have the fuel distribution tube 63 of rigidity is fastened on the petrolift unit 26, and by these fuel distribution tube 63 suspention support fuel filters 64, so fuel distribution tube 63, fuel filter 64 can be assembled in advance on the petrolift unit 26 and assemble, thereby can easily carry out the assembling of petrolift unit 26.
Figure 16~Figure 18 is the figure of the fuel supplying device of the mode of execution (the 4th mode of execution) that is used for explanation scheme 7 and scheme 8.In the drawings, identical with Fig. 2~Fig. 4 label is represented identical or suitable with it part.
In the present embodiment, petrolift unit 70 is arranged on the vehicle fore-and-aft direction central part of the bottom side 22c in the fuel tank 20, and erects petrolift unit 70 is set, make the axis L of petrolift unit 70 roughly vertical with the vehicle above-below direction.
On the shell 31 of above-mentioned petrolift unit 70, form fuel filter 71 integratedly continuously.And attracting the underpart opening of path 31b at above-mentioned shell 31, the suction port 71a of fuel filter 71 is communicated with this attraction path 31b.The suction port 71a of this fuel filter 71 forms on the position near bottom side 22c bottom surface.
In the present embodiment, because petrolift unit 70 is arranged on the bottom side 22c, make its axis L roughly vertical with the vehicle above-below direction, have most on the position more than needed so petrolift unit 70 can be arranged on the height dimension of fuel tank 20, can be arranged in the fuel tank 20 and do not increase the height and the width of case, thereby can prevent that fuel tank 20 from maximizing.
And can under the state that fuel tank 20 is installed on the vehicle frame, petrolift unit 70 be pulled down from fuel tank 20, thereby be easy to carry out the maintenance operation of petrolift unit 70.
And because fuel filter 71 one are connected on the above-mentioned petrolift unit 70, so can not need to connect both fuel distribution tubes, but also the suction port 71a of fuel filter 71 is positioned on the bottom surface of bottom side 22c, thereby can eliminates the dead amount of fuel and use fuel to greatest extent.
Figure 19~Figure 22 is the figure of the fuel supplying device of the mode of execution (the 5th mode of execution) that is used for explanation scheme 11~scheme 13.
In the 5th mode of execution, the case rail portion 6c by the vehicle frame that extends along the vehicle fore-and-aft direction supports fuel tank 20.This fuel tank 20 engages the periphery 21a of top box (outside wall portions) 21 and the periphery 22g of nowel (bottom wall portion) 22 by welding, and its basic structure is identical with the respective embodiments described above.
The nowel of above-mentioned fuel tank 20 (bottom wall portion) 22 comprises the end central part 22b that is positioned at vehicle-width direction central authorities and is positioned at the vehicle-width direction both sides of this end central part 22b and is in bottom side 22c, the 22c of the below of above-below direction.In other words, above-mentioned end central part 22b forms the recess 22a of side's depression in case, and above-mentioned bottom side 22c and end central part 22b have the jump shape downwards.
On above-mentioned bottom side 22c, form opening 22h.This opening 22h ovalize, its be set to its major axis towards vehicle fore-and-aft direction, minor axis towards the overall width direction.And releasably stop up this opening 22h by the rectangular plate 30 that covers above-mentioned opening 22h.This petrolift unit 70 is arranged on the case inner side surface of this plate 30.This petrolift unit 70 comprises: the petrolift 70a of fixed configurations on the case outer side surface of plate 30, and its axis L is roughly along the vertical direction; With power supply connector 70b and spraying pipe 70c, be configured in the case outside of this plate 30.Above-mentioned petrolift 70a is built in oil purifier the bottom of being fixed on the plate 30.Above-mentioned power supply links to each other with the motor of above-mentioned petrolift 70a with distribution 70b ' by power supply with connector 70b, and above-mentioned spraying pipe 70c is communicated with the ejiction opening of above-mentioned petrolift 70a by ejection flexible pipe 70c '.And, promptly be arranged side by side above-mentioned petrolift 70a, connector 70b, distribution 70b ', spraying pipe 70c and ejection flexible pipe 70c ' along the vehicle fore-and-aft direction along above-mentioned long axis of ellipse.
Above-mentioned plate 30, from above-mentioned opening 22h above-mentioned petrolift unit 70 is inserted in the case, and the bottom side 22c of above-mentioned nowel 22 between clamping sealed member 72, make the case outer side surface butt of this plate 30 and this bottom side 22c, for example can freely install with loading and unloading by 4 groups of bolt and nuts (assembly) 73a, 73b.
Above-mentioned sealed member 72 is ellipticity, its diameter is less times greater than above-mentioned ellipticity opening 22h and surround around the above-mentioned petrolift unit 70, have the line part parallel (overall width direction outermost part) 72a, 72a and be used to be connected described line part circular arc part 72b, 72b each other with this transverse, towards the vehicle fore-and-aft direction line part 72a is set.Above-mentioned 4 groups of bolt 73a, nut 73b are arranged on, on the above-mentioned line part 72a of vehicle fore-and-aft direction (arrow B direction) this bolt center line and above-mentioned sealed member 72 when seeing, position that 72a overlaps.And, above-mentioned bolt 73 is set, make it penetrate into the outside from the case inboard, its bolt head oil sealing is welded on the above-mentioned bottom side 22c.In addition, 30a is the patchhole that breakthrough form is formed in the above-mentioned bolt 73a on the plate 30.
In the present embodiment, because petrolift unit 70 is set in place in the bottom side 22c of the end of nowel 22 central part 22b below, so can make petrolift 70a longer on axle L direction as required, thus can guarantee big pump capacity.
And, because the plate 30 that is mounted with petrolift unit 70 can releasably be installed from the outside, thus prepare the handling operation of carrying out petrolift unit 70 in advance, thus maintenance can be improved.
When releasably constituting above-mentioned plate 30, because bolt 73a, nut 73b are set to overlap with the line part 72a of sealed member 72, so can restrain plate 30 and petrolift unit 70 overall width direction sizes in inferior limit ground, at the width dimensions of the bottom side 22c of fuel tank 20 hour, also the pump unit can be set.
In the above-described embodiment, though all bolt 73a be set to overlap with sealed member, also can only left and right bolt in arbitrary bolt be set to overlap with sealed member.
As shown in figure 23, for the configuration of above-mentioned bolt 73a, also can be at the middle additional bolts 73a ' between forward and backward bolt 73a, the 73a, so can further improve sealing.
And in above-mentioned the 5th mode of execution, although understand oil purifier is built in situation in the bottom of petrolift 70a, but self-evident, also can form the structure that as shown in figure 24 oil purifier 70d ' is arranged on petrolift 70a foreign side.
The possibility of utilizing on the industry
If the fuel feedway of employing scheme 1, because the fuel pump is arranged on the end in the fuel tank In the wall section, make its axis towards the vehicle front and back to, so for example can be by with fuel pump horizontal stroke Be arranged on the end section of central authorities, bottom side or the end section of central authorities that consist of the bottom wall part recess and bottom side it Between vertical wall section on, the fuel pump be arranged in the fuel tank and do not increase height and the width of case, Thereby can prevent that fuel tank from maximizing.
In the invention of scheme 2, owing to the end section of central authorities that the fuel pump is arranged on bottom wall part, so Can be configured in and the space is set relatively has more than needed and be easy to guarantee to install on the position on composition surface, from And can prevent that fuel tank from maximizing.
And, have on the bottom side of rank difference owing to the fuel filter device being arranged on end section of central authorities, So can eliminate the dead of the fuel that can't attract when the fuel pump is arranged on the eminence of bottom wall part Amount, thus fuel can be used to greatest extent. And, can be from fuel tank dismounting combustion Material filter and fuel tank not being pulled down from vehicle frame is easier to carry out the maintain and replace behaviour of filter core Do.
In the invention of scheme 3, owing to the outside that fuel distribution tube is arranged on fuel tank, so Can carry out the connection operation of fuel distribution tube from the case outside, can improve operability.
And, because the suction inlet of fuel filter device is positioned on the bottom wall part, so can suck The fuel that fuel filter device installation site is above can use fuel to greatest extent.
In the invention of scheme 4, because fuel distribution tube is arranged in the fuel tank, so fuel The case outside does not need to join pipe, can improve aesthetic appearance.
In the invention of scheme 5 and since fuel distribution tube have flexible, with fuel distribution tube from fuel Be drawn out to the outside in the case and be connected on the fuel filter device, and in this state with fuel filter Device is installed on the bottom wall part, so be easy to pacify when rope is arranged in the fuel tank when fuel is joined The dress operation.
In the invention of scheme 6, owing to support the fuel distribution tube with rigidity by the fuel pump, And support the fuel filter device by the suspention of this fuel distribution tube, so can be in advance with fuel distribution tube, Fuel filter bank is contained in the enterprising luggage of fuel pump joins, thereby can be easy to carry out the group of fuel pump Dress.
In the invention of scheme 7, because the fuel pump is arranged on the ladder bottom side of bottom wall part, Make its axis towards upper and lower to, so the fuel pump can be arranged on the fuel tank height dimension Have on the position more than needed, the fuel pump can be arranged in the fuel tank and do not increase case height and Width, thus can prevent that fuel tank from maximizing. And, can dismantle fuel from fuel tank Pump and fuel tank need not being pulled down from vehicle frame, thus be easy to carry out the maintain and replace behaviour of fuel pump Do.
In the invention of scheme 8, owing to fuel filter device one is connected in the fuel pump institute Can not needing to connect both fuel distribution tubes, and can make the suction inlet of fuel filter device Be positioned at the lower of fuel tank, use to greatest extent combustion so can eliminate the dead amount of fuel Material.
In the invention of scheme 9, owing to pass at the suction inlet partial configuration liquid level of fuel filter device Sensor, and when importing the detection value of this sensor, show the warning of fuel surplus, so can Use to greatest extent fuel, and can before soon can't travelling, inform the jockey.
In the invention of scheme 10, owing in the suction inlet part of fuel filter device combustion is set independently Material is stored the chamber, and stores at this fuel and indoor the liquid level sensor to be set, so can be accurately Carry out the warning of fuel surplus.
In the invention of scheme 11, on the bottom wall part of above-mentioned fuel tank, because than the described end Section of central authorities arranges the fuel pump on the position on the lower, makes its axis roughly along the vertical direction, so can Have most on the position more than needed and do not increase the case height the fuel pump is arranged on the fuel tank height dimension With the case width, can guarantee the desired volume of fuel pump.
In addition, because the fuel pump is arranged on the plate that releasably stops up the bottom side opening, So can dismantle the fuel pump from fuel tank, and fuel tank need not be pulled down from vehicle frame, from And be easy to carry out the maintain and replace operation of fuel pump.
In the invention of scheme 12, have at least a part to be arranged on the position that partly roughly overlaps with the overall width direction outermost of sealed member when the vehicle fore-and-aft direction is seen owing to be positioned at the outermost assembly of overall width direction, so can restrain to inferior limit the overall width direction size of plate, even in the time of can't fully guaranteeing the width direction size of fuel tank bottom side, also petrolift can be arranged in the fuel tank.
In the invention of scheme 13, be arranged on the position that roughly overlaps with the overall width direction outermost part of above-mentioned sealed member, so can further reduce the overall width direction size of above-mentioned plate owing to will be positioned at outermost all assemblys of overall width direction.

Claims (6)

1. the fuel supplying device of an automatic two-wheeled cycle, on the vehicle frame that extends along the vehicle fore-and-aft direction, load fuel tank, and in described fuel tank, petrolift is set, this petrolift forms the tunnel-like recess of inserting logical described vehicle frame on the overall width direction central part of this fuel tank bottom wall portion, and to the motor fueling, it is characterized in that: described petrolift is arranged on the described bottom wall portion, and the axis that makes this petrolift is towards the vehicle fore-and-aft direction;
Described petrolift is arranged on the end central part of the described recess that forms described fuel tank bottom wall portion, the described recess side that the fuel filter that will have a suction port is arranged on described bottom wall portion has on the bottom side of jump, connects the suction port of this fuel filter and the attraction mouth of described petrolift by fuel distribution tube.
2. the fuel supplying device of automatic two-wheeled cycle as claimed in claim 1, it is characterized in that: described fuel distribution tube is arranged on the outside of described fuel tank.
3. the fuel supplying device of automatic two-wheeled cycle as claimed in claim 1, it is characterized in that: described fuel distribution tube is arranged in the described fuel tank.
4. the fuel supplying device of automatic two-wheeled cycle as claimed in claim 3, it is characterized in that: described fuel distribution tube constitutes by having flexible material, draw this fuel distribution tube and be connected on the described fuel filter to the fuel tank outside in the fuel tank, from fuel tank foreign side fuel filter is installed on the described bottom wall portion in this state.
5. the fuel supplying device of automatic two-wheeled cycle as claimed in claim 3 is characterized in that: described fuel distribution tube supports described fuel filter by constituting by the material with rigidity that described petrolift supported by described fuel distribution tube suspention.
6. as the fuel supplying device of each described automatic two-wheeled cycle in the claim 1~5, it is characterized in that: the suction port at described fuel filter partly is provided with liquid level sensor, when input shows the warning of fuel surplus during from the checkout value of this liquid level sensor.
CNB2004800012732A 2003-02-17 2004-02-17 Fuel-feeding device for two-wheeled motor vehicle Expired - Lifetime CN100510376C (en)

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JPWO2004072469A1 (en) 2006-06-01
BRPI0419323B1 (en) 2012-12-25
CN101289107A (en) 2008-10-22
BRPI0406176A (en) 2005-07-19
CN101289107B (en) 2011-09-21
CN1705816A (en) 2005-12-07
BRPI0406176B1 (en) 2013-06-11
WO2004072469A1 (en) 2004-08-26

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