CN1504381A

CN1504381A - Motorbicycle

Info

Publication number: CN1504381A
Application number: CNA200310113690A
Authority: CN
Inventors: 慷纱; 樋渡大; 弘; 高田康弘; 一; 齐藤俊一
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2002-11-29
Filing date: 2003-11-19
Publication date: 2004-06-16
Anticipated expiration: 2023-11-19
Also published as: KR20040047582A; CN1313314C; JP2004182017A; MXPA03010543A; KR100566495B1; JP4138466B2; TWI238220B; TW200408763A

Abstract

A throttle valve is rotatably supported to a body. A throttle valve drum provided at a side of the body and connected to the throttle valve is wound about and connected to a throttle valve cable. An air filter serves to clean air supplied to an air intake regulating means and disposed to a location that is further to the front of the motorcycle as compared to the air intake regulating means, so as to reduce the number of components, an to prevent water and mud from splashing towards the throttle valve drum. In a filter case 70 of an air filter 33 is integrally disposed with a shielding board 79, which covers at least the throttle valve drum 48 of the air intake regulating means 32 from the front side.

Description

Motor bike

Technical field

The present invention relates to a kind of motor bike, the part of its vehicle frame is by supporting front-wheel and handlebar, and makes its head pipe that can turn to, and constitutes to the back lower place main frame that extends that descends from this pipe; Engine suspension is below the above-mentioned main frame of above-mentioned vehicle frame; Adjusting is bearing on the main body of throttle body to the throttle gate of above-mentioned driving engine air supplied amount, can rotate, and the throttle gate wire rope roll is around being connected on the above-mentioned throttle gate and being arranged on the throttle gate drum of main body side of above-mentioned throttle body; Institute's bonded assembly aspirated volume control apparatus, and the place ahead that is arranged in above-mentioned aspirated volume control apparatus to the airfilter that this aspirated volume control apparatus supply purifies air, are arranged in the top of above-mentioned driving engine.

Background technology

Throttle body is arranged in and is arranged on the from the beginning top of the driving engine of pipe below the back lower place descends the main frame that extends, and airfilter is arranged in the motor bike in oblique the place ahead of above-mentioned throttle body is known, for example, opened on the 2002-37165 communique and disclose patent documentation 1-spy.

, on this motor bike, when it travelled, front-wheel can be thrown water and earth out to the back upper place, and did not generally wish that the water thrown out and earth spatter on the part of throttle gate drum of throttle body and so on.Therefore, cover throttle body from the place ahead, like this, just increase the quantity of part with watertight cover and so on.

Summary of the invention

The present invention is in view of above situation puts forward, and its objective is provides a kind of motor bike, and it can also prevent that water and the earth thrown out upward by front-wheel from spattering on the throttle gate drum when avoiding increasing number of parts.

For achieving the above object, the invention of being put down in writing in the claim 1 is a kind of motor bike, and the part of its vehicle frame make its head pipe that can turn to, and the main frame that extends to back lower place decline from this pipe constitutes by supporting front-wheel and handlebar; Engine suspension is below the above-mentioned main frame of above-mentioned vehicle frame; The throttle gate that can regulate to this driving engine air supplied amount is bearing on the main body of throttle body, can rotate, and the throttle gate wire rope roll is around being connected on the above-mentioned throttle gate and being arranged on the throttle gate drum of main body side of above-mentioned throttle body; Be connected the aspirated volume control apparatus on the steel rope, and the place ahead that is arranged in above-mentioned aspirated volume control apparatus, the airfilter that purifies air to this aspirated volume control apparatus supply, be arranged in the top of above-mentioned driving engine, it is characterized in that, on the filter casing of above-mentioned airfilter, be provided with the above-mentioned throttle gate that covers at least the above-mentioned aspirated volume control apparatus from the place ahead and rouse, and the shutter that becomes one with it.

The formation of putting down in writing according to claim 1 of the present invention, because the shutter that the filter casing of utilization and airfilter is made of one, at least covered the above-mentioned throttle gate drum the aspirated volume control apparatus from the place ahead, so when avoiding increasing number of parts, can also prevent that water and earth that front-wheel is thrown out to the back upper place from spattering on the throttle gate drum.

In addition, the invention of being put down in writing in the claim 2, be in the formation of the invention in aforesaid right requirement 1, put down in writing, also add such feature, that is, the opening portion that setting operation is used on above-mentioned shutter, its position is being connected on the corresponding position of belt of the fixedly usefulness on the above-mentioned aspirated volume control apparatus with guiding the connection pipe that purifies air that ejects from above-mentioned airfilter, and, the lid of the opening portion of can the switch aforesaid operations using has been installed on above-mentioned shutter.According to this formation, no matter whether shutter is arranged, can both make to tighten or unclamp the fixedly operation of the belt of usefulness to be easy to carry out, thereby can improve repair the time and the transaction capabilities during assembling.

The invention of being put down in writing in the claim 3 is in the formation of the invention put down in writing in aforesaid right requirement 1 or 2, also adds such feature, that is, the throttle gate drum backplate that covers above-mentioned throttle gate drum from the side is installed on the above-mentioned airfilter.According to this formation, just can prevent that sealing and earth etc. splash on the throttle gate drum from the side.

Also have, the invention of being put down in writing in the claim 4, be in the formation of the invention in aforesaid right requirement 1 or 2 or 3, put down in writing, also add such feature, promptly, on main body, the function unit of control to the work of the fuel injection valve of above-mentioned driving engine fuel supplying has been installed as the throttle body of above-mentioned aspirated volume control apparatus.According to this formation, just can improve the waterproof of function unit of the work of controlling fuel injection valve and the performance of anti-earth.

Description of drawings

Fig. 1 is a motor bike single-piece lateral plan;

Fig. 2 is under the state that car body is covered after unloading down, the block diagram of the middle body of motor bike on fore-and-aft direction;

Fig. 3 is the lateral plan of driving engine and air gulp system;

Fig. 4 is the amplification profile diagram along the 4-4 line among Fig. 3;

Fig. 5 is the enlarged drawing along the arrow among Fig. 35;

Fig. 6 is the cross sectional drawing along the 6-6 line among Fig. 5;

Fig. 7 is the back view of the airfilter seen from arrow 7 directions of Fig. 3;

Fig. 8 is the cross sectional drawing along the 8-8 line among Fig. 7;

Fig. 9 be along the arrow among Fig. 39 to view;

Figure 10 is the planar view of aspirate tube and fuel injection valve;

Figure 11 is the cross sectional drawing along the 11-11 line among Figure 10;

Figure 12 is the side-looking skiagraph at motor bike rear portion;

Figure 13 is the cross sectional drawing along the 13-13 line among Figure 12;

Figure 14 is the cross sectional drawing along the 14-14 line among Figure 13;

Figure 15 is the block diagram after Fuel Tank, petrolift and lid decompose;

Figure 16 is the amplification profile diagram along the 16-16 line among Figure 13;

Figure 17 is the cross sectional drawing along the 17-17 line among Figure 16;

Figure 18 is the amplification profile diagram along the 18-18 line among Figure 13.

The specific embodiment

Below, with reference to the embodiments of the invention shown in the accompanying drawing, illustrate that of the present invention is embodiment.

Fig. 1～Figure 18 represents one embodiment of the present of invention.Fig. 1 is a motor bike single-piece lateral plan; Fig. 2 is under the state that car body is covered after unloading down, the block diagram of the middle body of motor bike on fore-and-aft direction; Fig. 3 is the lateral plan of driving engine and air gulp system; Fig. 4 is the amplification profile diagram along the 4-4 line among Fig. 3; Fig. 5 is the enlarged drawing along the arrow among Fig. 35; Fig. 6 is the cross sectional drawing along the 6-6 line among Fig. 5; Fig. 7 is the back view of the airfilter seen from arrow 7 directions of Fig. 3; Fig. 8 is the cross sectional drawing along the 8-8 line among Fig. 7; Fig. 9 be along the arrow among Fig. 39 to view; Figure 10 is the planar view of aspirate tube and fuel injection valve; Figure 11 is the cross sectional drawing along the 11-11 line among Figure 10; Figure 12 is the side-looking skiagraph at motor bike rear portion; Figure 13 is the cross sectional drawing along the 13-13 line among Figure 12; Figure 14 is the cross sectional drawing along the 14-14 line among Figure 13; Figure 15 is the block diagram after Fuel Tank, petrolift and lid decompose; Figure 16 is the amplification profile diagram along the 16-16 line among Figure 13; Figure 17 is the cross sectional drawing along the 17-17 line among Figure 16; Figure 18 is the amplification profile diagram along the 18-18 line among Figure 13.

At first, in Fig. 1, the vehicle frame 20 of above-mentioned motor bike has and is supporting front fork 24, the head pipe 21 that it can be turned to, from the beginning manage 21 main frames 22 that extend to the back lower place, and the rear portion that is connected main frame 22, the left and right a pair of rear frame 23 that extends to the back upper place ...Front-wheel WF uses the lower end of pivot suspension at above-mentioned front fork 24.On the top of front fork 24, connecting shaft-like steering handle 25, and the front fender apron 26 that is covered with above the front-wheel WF is bearing in also on the front fork 24.

See also Fig. 2 and Fig. 3, main frame 22 is to be that square square tube is made with transversal surface, on two sides of main frame 22 centre portions, is fixing suspension plate 27 respectively ..., on the two sides at main frame 22 rear portions, fixing pivot plate 28.

Below main frame 22, arranged, for example, the driving engine E that the axis of cylinder is tilted slightly forward.Driving engine E is by above-mentioned suspension plate 27 ... with pivot plate 28 supportings, be suspended on the vehicle frame 20.

Above-mentioned pivot plate 28 upper supports can the upper and lower back vent that shakes 29 leading section, in the rear end of back vent 29, trailing wheel WR with pivot suspension.In addition, the rear frame on vehicle frame 20 23 ... and between the back vent 29, be provided with rear shock absorber 30.

Above-mentioned driving engine E constitutes engine installation P with reductor M, and the power of reductor M output passes to trailing wheel WR by chain 31.

In addition, above driving engine E, arranged as the throttle body 32 of the control apparatus of aspirated volume and be in the airfilter 33 in this throttle body 32 the place aheads.Above trailing wheel WR, arranged Fuel Tank 34, above the storage tank 35 that is arranged in these Fuel Tank 34 the place aheads and above-mentioned Fuel Tank 34, be covered with, for example, the ride vehicle seat 36 of usefulness of series type.

On vehicle frame 20, installed with synthetic resin and made, be covered with the car body cover plate 38 of a part, throttle body 32, airfilter 33, Fuel Tank 34 and the storage tank 35 of this vehicle frame 20, above-mentioned driving engine E.Car body cover plate 38 is made of following each several part: the front side cover plate 39 that is arranged in main frame 22 left and right sides Be connected two front side cover plates 39 ... the front portion, cover two leg guards 40 of occupant's foot from the place ahead Be connected two leg guards 40 ... on, cover a front tectal lamina 41 of pipe 21 from the place ahead; Be connected on the front tectal lamina 41, cover head pipe 21, and cover the main frame lamina tecti 42 of main frame 22 from the top from rear side; Be connected above-mentioned two front side cover plates 39 ... the lower cover 43 of bottom And the rear side cover plate 44 that covers Fuel Tank 34 and storage tank 35 from both sides.

The vehicle seat 36 of above-mentioned by bus usefulness is arranged in the top of rear side cover plate 44, can switch, so that be collected in the storage tank 35 or therefrom take out, and can irritate oil to article to Fuel Tank 34.The rear mudguard 45 that covers the top, rear portion of trailing wheel WR is arranged to connect together with rear side cover plate 44.

Among Fig. 4, throttle body 32 is by being bearing on the main body 47, the adjusting that can rotate is supplied to the bultterflythrottle 46 of the amount of air of driving engine E, and with its be wound on that throttle gate steel rope 49 on the throttle gate drum 48 is formed by connecting, throttle gate drum 48 is connected with throttle gate 46, is arranged in the side of main body 47.

The air intake passage 50 that oriented motor bike fore-and-aft direction extends on the main body 47, the throttle gate 46 that is arranged in air intake passage 50 centre portions is fixed on the valve shaft 51, and valve shaft then along being horizontally through air intake passage 50, is bearing on the main body 47, can rotate.In addition, throttle gate drum 48 with towards the state arrangement in the place ahead of motor bike direct of travel in the left side of main body 47, and be fixed on an end of above-mentioned valve shaft 51.And, between throttle gate drum 48 and main body 47, be provided with above-mentioned throttle gate 46 to the retracting spring 52 of closing side pressurization, overcome the elastic force of above-mentioned retracting spring 52 when the chaufeur of motor bike, above-mentioned throttle gate steel rope 49 is carried out draw operations, just can drive throttle gate 46 and rotate to a side of opening.

A side opposite with above-mentioned throttle gate drum 48 on aforementioned body 47 promptly on its right flank, installed the shell 55 that holds function unit 53.This shell 55 is by the housing main body 56 that is installed on the main body 47, constitute with the cover plate 57 of the opening portion of airtight this housing main body 56, above-mentioned function unit 53 is made of the electronic circuit (not shown) on the printed circuit board (PCB) 54 that is clamped between housing main body 56 and the cover plate 57.

The throttle sensor 58 that detects throttle gate 46 apertures is connected with above-mentioned printed circuit board (PCB) 54.This throttle sensor 58 is by following component set-up: embed in the housing main body 56 rotor 59 that can rotate; From the

conductive plug

60,60 of this rotor 59 to printed circuit board (PCB) 54 1 sides protrusion; Be printed on this printed circuit board 54, with the resistance 61 of these two

conductive plug

60,60 moving contacts.Rotor 59 is entrenched in the other end of valve shaft 51, can not relatively rotate, but not loosening yet.In addition, rotor 59 be bearing in valve shaft 51 on the fulcrum on the same axis line 62, can freely rotate, fulcrum 62 then passes printed circuit board (PCB) 54, is arranged on projectedly on the cover plate 57.Like this, by means of throttle sensor 58, just can go out the aperture of throttle gate 46 with the voltage detecting between resistance 61 two ends in above-mentioned function unit 53 these sides.

In addition, than throttle gate 46 more on the main body 47 of upstream one side, be provided with through hole 63 to air intake passage 50 openings, pass this through hole 63, the inaccessible part of the front end on air intake passage 50, thin-walled has the detection tube 64 of round-ended cylinder shape, be arranged on the housing main body 56, become one with it.

Be combined in the thermally dependent resistor 65 on the inside face of the inaccessible part of front end of above-mentioned detection tube 64 closely and in detecting tube 64, be connected and extend out, be connected the terminal 66 on the printed circuit board (PCB) 54, constituted suction temperature sensor 67 from above-mentioned thermally dependent resistor 65.The resistance value that function unit 53 relies on the variation along with suction temperature according to thermally dependent resistor 65 to change constitutes.And, in above-mentioned detection tube 64 that suction temperature sensor 67 is packed into after, recharge the encapsulation agent 68 of making by synthetic resin.

Like this, because throttle sensor 58 and suction temperature sensor 67 all are connected on the printed circuit board (PCB) 54 of the function unit 53 that is installed on the throttle body main body 47, so in function unit 53, just can shorten the wiring that is used to connect throttle sensor 58 and suction temperature sensor 67 very shortly.

The top of above-mentioned shell 55 strides across the top of main body 47, extends to throttle gate drum 48 1 sides always, is made of one at the coupling 69 of the opening of the same side and the housing main body 56 on the above-mentioned shell 55 with throttle gate drum 48.

Please see Figure 3, the filter casing 70 with the synthetic resin manufacturing of airfilter 33 is housed, be with the bowl-shape housing main body 71 that is bearing on the main frame 22, with with the bowl-shape lid 72 of these housing main body 71 relative openings, filter assemblies 73 in clamping between their excircle, interosculates to form.In the inside of filter casing 70, be divided into the not decontamination chamber 74 of lid 72 1 sides and the decontamination chamber 75 of housing main body 71 1 sides.

In the housing main body 71 of filter casing 70, captive joint to purifying air of discharge from airfilter 33 is directed to the connection pipe 76 that throttle body 32 goes, its upstream extremity is charged in the decontamination chamber 75, be arranged on the main body 47 of throttle body 32 the upstream side connecting cylinder 47a (referring to Fig. 4) that becomes one chimeric on its downstream end.And, connection pipe 76 for being maintained fixed the belt 77 that is connected the fixedly usefulness of using on the throttle body 32, be wound on the downstream end of connection pipe 76, and tighten the fixedly belt 77 of usefulness, be fixed on coupled condition on the throttle body 32 to keep connection pipe 76 with screw 78.

Please in the lump with reference to Fig. 5～Fig. 8, bottom at the housing main body 71 of the filter casing 70 of airfilter 33, be provided with the shutter 79 that becomes one with it, this piece shutter is covered with the drum of throttle gate at least 48 the throttle body 32 that is arranged in oblique below, these airfilter 33 rears from the place ahead.Because the coupling 69 that the shell 55 of above-mentioned throttle body 32 is possessed also is arranged in throttle gate drum 48 these sides, so above-mentioned shutter 79 also is covered with coupling 69 from the place ahead.

On the belt 77 corresponding locational above-mentioned shutters of using with said fixing 79, be provided with, for example, the opening portion 80 of circular operation usefulness, on shutter 79, installed and be arranged in shutter 79 fwd lids 81, the opening portion 80 that its energy switching manipulation is used.

On the position of the opening portion of using away from aforesaid operations 80, on shutter 79, be provided with support holes 82, pass the fulcrum 83 of above-mentioned support holes 82, protrusion is arranged on the lid made from rubber 81, become one with it, and when it passed support holes 82, the diameter of its front end can dwindle.At the front end of fulcrum 83, around support holes 82, be provided with many flexibly being combined on shutter 79 back sides, the engagement pawl 83a that becomes one ...That is, lid 81 is installed on the shutter 79, the position of the opening portion 80 that can in Fig. 5, use with the shutoff operation shown in the solid line, and between the position of the opening portion of using with the open operation shown in the imaginary line among Fig. 5 80, around the rotational of above-mentioned support holes 82.

And, lid 81 is disassembled, above-mentioned support holes 82 just can be used for regulating shutter 79 in-to-in parts, for example, is replacing with gasifier under the situation of throttle body 32, just can be used as the patchhole of the slow running adjustment instrument of gasifier.

In addition, on lid 81, be provided with in a circumferential direction and separate, and become one with it, the chimeric tube 84 of protrusion is so that flexibly be entrenched under the closed state of the opening portion 80 of operating usefulness in the opening portion 80 of operation usefulness.Be arranged on many engagement pawl 84a of these chimeric tube 84 front ends ..., around the opening portion 80 of operation usefulness, flexibly be combined in the back side of shutter 79, so that keep the closed state of the opening portion 80 of operation usefulness with lid 81.

With driving engine E on cylinder cover hood 87 corresponding parts, lower end at above-mentioned shutter 79, be provided with breach 79a, this breach 79a is after unloading cylinder cover hood 87, when the tappet of the valve gear on the driving engine E is regulated, for the instrument 86 of spanner and so on being inserted cylinder cover hoods 87 usefulness.

In addition, from the side of the throttle gate drum 48 of throttle body 32, be in the present embodiment from the left side, the throttle gate of the synthetic resin manufacturing that covers drum backplate 161 is installed on the above-mentioned airfilter 33.That is, the left side at housing main body 71 back sides on the filter casing 70 of airfilter 33 is provided with to the top of above-mentioned throttle gate drum backplate 161 with screw 162 thereon, and the installation base 71a that becomes one with it.In the bottom, left side of above-mentioned shutter 79, be provided with to making and be arranged on above-mentioned throttle gate drum backplate 161 bottoms, the engagement pawl 161a that roughly is the L font is in conjunction with thereon, the combined hole 163 of rectangle.

Like this, one side is combined in above-mentioned engagement pawl 161a in the combined hole 163, one side is tightened in the top of the throttle gate drum backplate 161 that is crimped on above-mentioned shutter 79 lower backside on the above-mentioned installation base 71a with screw 162, just can be installed in throttle gate drum backplate 161 on the airfilter 33.

In addition, bottom at the cylinder cover 88 of driving engine E, connecting the freeing pipe 164 that links to each other with the exhausr port (not shown) of cylinder cover 88, for the downstream end of the pipeline 165 used of the fresh secondary air of supply to the waste gas that flows to freeing pipe 164 from above-mentioned exhausr port is connected on the cylinder cover hood 87, the upstream extremity of pipeline 165 then be bearing in driving engine E on auxiliary air control valve 166 link to each other.In addition, auxiliary air control valve 166 is connected on the filter 167 that is supported by main frame 22.

On above-mentioned filter 167, the downstream end that is connecting the 22 air supply pipes 168 that forwards extend from this filter 167 along main frame, the upstream extremity of this air supply pipe 168 extends outwardly into the top of airfilter 33 always, in car body cover plate 38 to atmosphere opening.

And, top at housing main body 71 back sides of the filter casing 70 of airfilter 33, be provided with the part near the upstream extremity of above-mentioned air supply pipe 168 is entrenched in wherein embeded slot 169, and, also be provided with protrusion, combine pin 170 with it becomes one, this root knot dowel pin is from the top crimping and be combined on that portion of air supply pipe 168 that is entrenched in this embeded slot 169.That is, near the part of the upstream extremity of air supply pipe 168, in being entrenched in embeded slot 169 in, also, remain on the top at housing main body 71 back sides with the mode of combination with the contacting of top in conjunction with pin 170.Like this, just there is no need on main frame 22, to be installed as and keep air supply pipe 168 usefulness, special-purpose clip.

The downstream connecting cylinder 47b (please refer to Fig. 4) that is made of one with the main body 47 of throttle body 32, the upstream extremity of aspirate tube 89 that is connected cylinder cover 88 tops of driving engine E with downstream end is connected.

Please in the lump with reference to Fig. 9～Figure 11, aspirate tube 89 bends to and roughly is the C font, and the cylinder cover 88 below tiltedly couples together throttle body 32 with in these throttle body 32 back.The surface cure of this root aspirate tube 89, coated the clad material made from rubber 90, be wholely set on the connecting cylinder part 90a on this clad material 90 by above-mentioned throttle body 32 downstream connecting cylinder 47b closely are entrenched in, throttle body 32 just has been connected on the aspirate tube 89 again.

The fuel injection valve 91 of burner oil in cylinder cover 88 has been installed on the aspirate tube 89, and the switch motion of this shooting valve 91 by on the main body 47 that is installed in above-mentioned throttle body 32, is held and the function uniies 53 that are fixed in the shell 55 are controlled.

Be provided with the mounting hole 92 towards cylinder cover 88 1 side openings on aspirate tube 89, front end is combined in the mounting hole 92 in the air tight mode towards the leading section of aspirate tube 89 in-to-in fuel injection valves 91.In addition, the rearward end of fuel injection valve 91 is combined in the jet pipe 93 with fluid-tight fashion, and jet pipe 93 is connected on the aspirate tube 89.That is, fuel injection valve 91 is to be installed on the aspirate tube 89 in the mode that is clipped between aspirate tube 89 and the jet pipe 93.

Be provided with the fuel feed passage 94 of the rear end internal communication of its downstream end and above-mentioned fuel injection valve 91 on above-mentioned

jet pipe

93,95 of inlet connecting branchs that is communicated with the upstream extremity of this fuel feed passage 94 are connected on the jet pipe 93 with flange.

Also be provided with the return flow line 96 of coming out from the centre portion bifurcated of above-mentioned fuel feed passage 94 on above-mentioned jet pipe 93, pressure-modulation valve 97 is connected on this return flow line 96.

The valve casing 98 of above-mentioned pressure-modulation valve 97 be arranged in above-mentioned fuel injection valve 91 position adjacent on, and it is parallel with this fuel injection valve 91, the upper end of valve casing 98 is installed on the above-mentioned jet pipe 93, and makes the connection pipe 99 that is communicated with fluid-tight fashion with above-mentioned return flow line 96 between between it and the jet pipe 93.That is, pressure-modulation valve 97 is arranged to extend downwards from jet pipe 93, and it is protruded from the side of jet pipe 93.

In addition, lid 101 is combined in the bottom of valve casing 98, and the excircle part of diaphragm 100 in clamping between the valve casing 98, has formed the valve chamber 102 that is communicated with above-mentioned return flow line 96 between valve casing 98 and diaphragm 100, has formed spring housing 103 between diaphragm 100 and lid 101.

In addition, also be provided with the reflux side connection pipe part 104 that becomes one with it on valve casing 98, it is below the inlet connecting branch 95 that combines with jet pipe 93, towards extending with these inlet connecting branch 95 same directions.Columnar valve base part 105 is communicated with this reflux side connection pipe part 104, the chimeric middle body that is fixed on it towards valve chamber 102, and its part is protruded to diaphragm 100 1 sides.And, can be bearing in the valve body 106 on the end of valve chamber 102 1 sides of above-mentioned valve base part 105, remain on the middle body of diaphragm 100, can some wave a little, and in spring housing 103, the spring 107 that is compressed is housed between lid 101 and diaphragm 100, makes the elastic force of diaphragm 100 to above-mentioned valve chamber 102 1 side deflections so that produce.

In this pressure-modulation valve 97, in valve chamber 102, diaphragm 100 is pressed to the fluid pressure of spring housing's 103 1 sides, when diaphragm 100 being pressed to the elastic force of valve chamber 102 above spring housing's 103 1 sides, diaphragm 100 is just to spring housing's 103 1 side deflections, make valve body 106 parts 105 of lifting off a seat, so that regulate by the hydraulic pressure in return flow line 106 and the fuel feed passage 94 that valve chamber 102 is communicated with, promptly be supplied to the pressure of the fuel of fuel injection valve 91, make it be no more than the pressure of setting.

In addition, as mentioned above, since pressure-modulation valve 97 be arranged in fuel injection valve 91 position adjacent on, be connected the contraction in length of the fuel feed passage 94 between fuel injection valve 91 and the pressure-modulation valve 97, can prevent to flow through the temperature build-up of the fuel in this fuel feed passage 94.

In Figure 12～Figure 14, Fuel Tank 34 is interosculated by lower part casing 110 and first half casing 111 and forms.On the whole excircle of upper and lower half casing 110,111 bound fractions, outside protrusion, the flange portion 112 that becomes one have been formed.Fuel Tank 34 is bearing in two rear frames 23 on the vehicle frame 20 ... on, at rear frame 23 ... be provided with support plate 113 for the front portion usefulness that supports above-mentioned Fuel Tank 34 ... and be the supporting boss 114 used of rear portion of the above-mentioned Fuel Tank 34 of supporting ...And, frame is at above-mentioned support plate 113 ... on above-mentioned flange portion 112, by means of bolt 115 ... with welded nut 116 ... be connected support plate 113 ... on, and frame is at supporting boss 114 ... on 112 of above-mentioned flange portions by means of bolt 117 ... be connected supporting boss 114 ... on.

, Fuel Tank 34 is arranged in trailing wheel WR top, for fear of interfering with trailing wheel WR, be the bottom of Fuel Tank 34, i.e. and the bottom of lower part casing 110, the middle body of making its left and right directions arches upward upward.That is, the two side portions 34L of the left and right directions of Fuel Tank 34,34R will do deeplyer than middle body 34C.

Please in the lump with reference to Figure 15, held petrolift 118 in Fuel Tank 34 inside, this petrolift 118 is installed in the upper wall of Fuel Tank 34, promptly on the first half casing 111.

Front portion at any side in Fuel Tank 34 left and right sides (being left part 34L in the present embodiment) upper wall, be provided with to recessed smooth pump mounting portion 119, and, be provided with the part 120 of arranging flexible pipe to the front lower place bevelled in the front portion of any side in Fuel Tank 34 left and right sides (being right side part 34R in the present embodiment) upper wall.

On said pump mounting portion 119, be provided with and be used for petrolift 118 is inserted in the Fuel Tanks 34, for example, oval-shaped patchhole 121.That is, petrolift 118 can be arranged on left and right any side (being arranged in left part 34L in the present embodiment) of Fuel Tank 34.

Bottom at petrolift 118, connecting the filter of not representing among the figure, the filter cabin 122 that covers this filter is bearing in the bottom of petrolift 118, so that keep the electrolyte level of regulation in this filter cabin 122, the float 123 that is used to detect the liquid level of the fuel in the Fuel Tank 34 is bearing in petrolift 118.

Surround above-mentioned patchhole 121, make oval-shaped adapter plate 124, be welded on said pump mounting portion 119 above.This piece adapter plate 124 is by being welded on the pump mounting portion 119 several, 6 low portion 124a for example ... be several of platform shape with protuberance, 6 high-order portion 124b for example ... alternately be formed by connecting each low portion 124a along circumferencial direction ... be welded on respectively pump mounting portion 119 above.

Please in the lump with reference to Figure 16 and Figure 17, at above-mentioned each high-order portion 124b ... below, welded from these high-order portions 124b ... the bolt 125 of Tu Chuing upward ... these bolts 125 ... pass the upper end that is arranged on petrolift 118, block the excircle part of cover plate 126 of the elliptical plate shape of above-mentioned patchhole 121 from the top, again being contained in these bolts 125 ... on nut 127 ... tighten, just cover plate 126, just petrolift 118 has been installed on the pump mounting portion 119.

And, the cushion block 128 that rubber is made is housed between pump mounting portion 119 and above-mentioned cover plate 126, these cushion blocks 128 become the high-order portion 124b that arranges above-mentioned adapter plate 124 respectively ... with opening portion 129 ... the ellipse that is had, be screwed in above-mentioned each bolt 125 by means of tightening ... on nut 127 ... just it can be clamped in the low portion 124a of adapter plate 124 ... and between the cover plate 126, and, it is clamped between the inside and outside pump mounting portion 119 and above-mentioned cover plate 126 of adapter plate 124.

Bend to the upper end that the oil drain tube 130 that roughly are the L font are connected above-mentioned petrolift 118, petrolift 118 is discharged fuel from oil drain tube 130.In addition, oil return pipe 131 is fixed on the above-mentioned cover plate 126, it is when passing above-mentioned cover plate 126 with fluid-tight fashion, extend to the bottom in the Fuel Tank 34 in the side of petrolift 118 always, oil return pipe 131 bends to above-mentioned oil drain tube 130 same above cover plate 126, roughly is the shape of L font.

And, above-mentioned oil drain tube 130 and oil return pipe 131 oblique to the right the place ahead above cover plate 126 is arranged abreast, the upstream extremity of fuel hose 132 is connected on the oil drain tube 130, and upstream extremity is connected the downstream end of returning the oil return flexible pipe 133 on the side connection pipe part 104 of above-mentioned pressure-modulation valve 97, then is connected on the oil return pipe 131.

Also have, for and the storage tank 35 in Fuel Tank 34 the place aheads between form the space that can allow fuel hose 132 and oil return flexible pipe 133 pass through, at front end along the Fuel Tank 34 of the bearing of trend of above-mentioned oil drain tube 130 and oil return pipe 131, promptly, arranged in the front portion, left side on the flange portion 112 of right side front end of Fuel Tank 34 of petrolift 118, be provided with breach 135.Fuel hose 132 and oil return flexible pipe 133 are arranged the top of the part 120 of flexible pipe from oil drain tube 130 and oil return pipe 131 processes, extend out downwards from above-mentioned breach 135 again, then, in the bending of the rear of storage tank 35, extend to the left side of this storage tank 35.That is, be connected fuel hose 132 on oil drain tube 130 and the oil return pipe 131 and oil return flexible pipe 133 at the rear of storage tank 35, curved arrangement becomes opens wide to the left, roughly is the shape of U word.

And, left side at storage tank 35, though fuel hose 132 and oil return flexible pipe 133 forwards extend abreast, but, the downstream end of fuel hose 132 is in the left side of storage tank 35 front portions, be connected with support unit 134 and be bearing on the high pressure filter 136 of front portion of rear frame 23 1 sides, the fuel hose 137 that upstream extremity is connected on the high pressure filter 136 then is connected on the inlet side connection pipe 95 of jet pipe 93, so that to fuel injection valve 91 fuel supplying.And the above-mentioned support unit 134 of above-mentioned high pressure filter 136 usefulness is bearing on the rear frame 23, and the position at its place just is easy to carry out M R as long as lay down main frame top cover 42.

Be connected fuel hose 132 and oil return flexible pipe 133 on jet pipe 93 and the pressure-modulation valve 97 in this way, because fuel from petrolift 118 discharges, reciprocation cycle between near the pressure-modulation valve 97 petrolift and the fuel injection valve 191, so, even driving engine E is arranged in the below of fuel hose 132 and oil return flexible pipe 133, can prevent that also the temperature of fuel from rising.

Said pump mounting portion 119 and the part 120 of arranging flexible pipe, lid 138 with the upper end that covers petrolift 118, fuel hose 132 and oil return flexible pipe 133 covers it from the top, and this lid 138 is connected with pair of support parts part 139,139 on the cover plate 126 that is fixed on above-mentioned petrolift 118.That is, lid 138 is installed on the cover plate 126 by support unit 139,139.

Support unit 139,139 is arranged in the both sides relative to each other of the patchhole 121 of Fuel Tank 34, with the cover plate 126 of petrolift 118 being connected 6 groups of bolts 125 using on the adapter plate 124 ... with nut 127 ... in each is a pair of, two groups of bolts 125 ... with nut 127 ... be connected on the cover plate 126, and form the shape of swelling upward from cover plate 126

And, on the inside face on each support unit 139,139 top, fixing welded nut 140,140, the screw 141,141 that is contained in the lid 138 on the support unit 139,139 and passes support unit 139,139 is screwed on the welded nut 140,140.

In addition, the right part away from the locational lid 138 of petrolift 118 is bearing on the support plate 113 on the rear frame 23 that is fixed on the right side, in order to the front portion on supporting fuel case 34 right sides.As shown in figure 18, the flange portion 112 of front portion, Fuel Tank 34 right side also is connected on the support plate 113 with bolt 115 and welded nut 116.

In addition, as shown in figure 12, the bottom of storage tank 35 is by a pair of installing component 143 ..., be arranged on two rear frames 23 ... the front portion between back plate 142 on.And the left and right upper end at storage tank 35 rear portions, then as shown in figure 18, by installing component 144 ... be bearing in the front portion of support plate 113.

Installing component 144 ... be installed in the support lug 35a that the left and right upper end that is arranged on storage tank 35 rear portions becomes one respectively ... with support plate 113 ... the front portion between, the sleeve pipe 145 that metal is made ... pass support lug 35a ..., be crimped on the packing ring 149 that the synthetic resin above this support lug 35a is made ... with installing component 144 ..., the packing ring 148 that metal is made ... be crimped on above-mentioned packing ring 149 ... upper end with sleeve pipe 145.And, have and packing ring 148 ... in conjunction with backstop head 147a ... bolt 147 ... pass packing ring 148 ... with sleeve pipe 45 ... be fixed on support plate 113 anterior following welded nuts 146 by means of handle ... on above-mentioned bolt 147 ... tighten, the left and right upper end at storage tank 35 rear portions is bearing in support plate 113 ... on.

Be arranged on left and right upper end, storage tank 35 rear portions, the support lug 35a that becomes one with it ... with support plate 113 ... the front portion between, installing component 144 is housed respectively ... the tubular shell 145 that metal is made ... pass support lug 35a ..., be crimped on the packing ring made from synthetic resin 149 above this support lug 35a ... with installing component 144 ..., and the packing ring 148 that metal is made ... be crimped on above-mentioned packing ring 149 ... upper end with sleeve pipe 145.And, have and packing ring 148 ... in conjunction with backstop head 147a ... bolt 147 ... pass packing ring 148 ... with sleeve pipe 145 ... be fixed on support plate 113 being screwed in ... welded nut 146 below anterior ... on above-mentioned bolt 147 tighten after, just the left and right upper end at storage tank 35 rear portions can be bearing in support plate 113 ... on.

The front end of the vehicle seat 36 of the usefulness of riding, be bearing in the top of storage tank 35 front end central authorities by hinge 150, can folding, when the vehicle seat 36 of the usefulness by bus of closing, because at two rear frames 23 ... the rear portion between be provided with and accept the receiver sheet 151 of the vehicle seat 36 of usefulness by bus, so, be fixed on a pair of elastomeric element 153 below the base plate 36a of the vehicle seat 36 of usefulness by bus ... just be crimped on the receiver sheet 151.In addition, the two ends of grab rail 152 also are installed on the receiver sheet 151.

In addition, under the state that the vehicle seat 36 of usefulness is closing by bus, and the California bearing ratio above it is less the time, the centre portion of vehicle seat 36 on fore-and-aft direction of usefulness do not contact with Fuel Tank 34 by bus, but, when load-carrying very big, by bus during vehicle seat 36 deflection downwards of usefulness, because on the upper wall of Fuel Tank 34, around said pump mounting portion 119, be provided with several and be used to bear the position (being three positions in the present embodiment) of the load-carrying of the vehicle seat 36 of usefulness by bus, be fixed on three following elastomeric element 154A of the base plate 36a of the vehicle seat 36 of usefulness by bus, 154B, 154C just can contact with the upper wall of Fuel Tank 34 on above-mentioned position of respectively bearing the by bus load-carrying of the vehicle seat 36 of usefulness.In addition, also can omit above-mentioned elastomeric element 154C, only contact with the upper wall of Fuel Tank 34 with a pair of elastomeric element 154A, 154B.

In addition, on Fuel Tank 34, the position of wall substantial middle is provided with to injecting the fuel inlet (not shown) that fuel is used thereon, 155 on the fuel inlet lid that seals this fuel inlet is installed on the upper wall of Fuel Tank 34, can cover or unload down.

Below, the effect of present embodiment is described.Because on the filter casing 70 of airfilter 33, be provided with and become one with it, at least covered the shutter 79 of the throttle gate drum 48 the throttle body 32 from the place ahead, so, can when avoiding increasing the quantity of part, prevent that the water and the earth that are splashed up by front-wheel WR from spattering on throttle gate drum 48.

In addition, on the main body 47 of throttle body 32, the function unit 53 of control to the work of the fuel injection valve 91 of driving engine E fuel supplying has been installed, and shutter 79 has also covered this function unit 53 from the place ahead, so can also improve the performance of function unit 53 waterproof and anti-earth.

Also have, because on the filter casing 70 of airfilter 33, the throttle gate drum backplate 161 of the throttle gate drum 48 of (being the left side in the present embodiment) covering throttle body 32 from the side has been installed, has been spattered on throttle gate drum 48 from the side of throttle body 32 so can prevent sealing and earth.

And, since with the cooresponding position of the fixing belt 77 of usefulness (this belt is that the connection pipe that purifies air 76 that guiding is discharged from airfilter 33 is connected throttle body 32 usefulness) on, on shutter 79, be provided with the opening portion 80 of operation usefulness, thereby the lid 81 of the opening portion 80 that can use switching manipulation is installed on the shutter 79, so no matter whether shutter 79 is arranged, can both be by the opening portion 80 of operation usefulness, from the place ahead finger is put in, the belt of using by press fit 77, can fasten or unclamp the fixedly belt 77 of usefulness at an easy rate from the side of shutter 79, thereby when improving repair and the transaction capabilities during assembling.

In addition, be used to install the pump mounting portion 119 that is contained in the petrolift 118 in the Fuel Tank 34 and be arranged on upper wall to recessed Fuel Tank 34, because lid 138 has covered this pump mounting portion 119 from the top, even all be arranged on the pump mounting portion 119 so be connected the connecting bridge of fuel hose 132 on the petrolift 118 and oil return flexible pipe 133 etc., also can prevent to interfere, can increase and set the degree of freedom of the height of the vehicle seat 36 of usefulness by bus with the vehicle seat 36 of the usefulness of riding.And; owing to covered pump mounting portion 119 from the top with lid 36; when because of refueling to Fuel Tank 34 when raising the vehicle seat 36 of usefulness by bus; can prevent conscientiously that mistake from coming in contact with above-mentioned connecting bridge; thereby can be in the connecting bridge of protection petrolift 118; above-mentioned connecting bridge is exposed, can obtain good surface appearance.

In addition, because petrolift 118 is inserted in the Fuel Tank 34, stopped up the patchhole 121 that is arranged on the pump mounting portion 119 from the top, again the cover plate 126 that is arranged on petrolift 118 upper ends is installed on the pump mounting portion 119, just can be installed in lid 138 on the cover plate 126 by support unit 139,139, so do not need for lid 138 being fixed on the special part of using on the Fuel Tank 34, thereby can reduce the quantity of part.

Because front portion away from lid 138 right sides of petrolift 118, in the mode that combines with Fuel Tank 34, be installed on the support plate 113 on the rear frame 23 of the vehicle frame 20 that is arranged at supporting fuel case 34, so do not need to install the parts peculiar of lid 138, just lid 138 can be supported securely, and the quantity of part can also be reduced.

In addition, because said pump mounting portion 119 and above-mentioned petrolift 118, all be arranged in the front portion of left and right any side (being left part 34L in the present embodiment) of the Fuel Tank 34 of trailing wheel WR top, so can be arranged in petrolift 118 on the position, deep of Fuel Tank 34.Promptly, though Fuel Tank 34 causes the degree of depth of middle body 34C of Fuel Tank 34 left and right directions very shallow because being arranged in the top of trailing wheel WR, but can be by petrolift 118 being arranged in any side of Fuel Tank 34 left and right directions, petrolift 118 1 sides are arranged on the dark position of the degree of depth of Fuel Tank 34.In addition, on the leading section of left and right any side (being right side part 34R in the present embodiment) of Fuel Tank 34, be provided with and allow the fuel hose 132 that extends out from petrolift 118 and oil return flexible pipe 133 pass through, be arranged in the breach 135 between the rear portion of storage tank 35 in Fuel Tank 34 the place aheads, so fuel hose 132 and oil return flexible pipe 133 can be arranged at the rear of storage tank 35, bend to the shape that roughly is the U font that the side (being the left side in the present embodiment) to above-mentioned left and right direction is opened wide.Like this, no matter whether storage tank 35 is arranged, can both avoid a fuel hose 132 and oil return flexible pipe 133 terribly crooked, but the ground of releiving is crooked, thereby can successfully arranges fuel hose 132 and oil return flexible pipe 133 in the place ahead of Fuel Tank 34.

Also have, some place in the pump mounting portion around 119, upper wall at Fuel Tank 34, be provided with the position of the load-carrying on the vehicle seat 36 that can bear the usefulness of riding, even the vehicle seat 36 of usefulness has sunk owing to load-carrying makes by bus greatly, because the load-carrying of the vehicle seat 36 of usefulness by bus that acts on Fuel Tank 34 upper walls can be born in the some positions in the pump mounting portion around 119,, avoid loading on the vehicle seat 36 of usefulness by bus on lid 138 so can reduce the distortion of the vehicle seat 36 of usefulness by bus.

More than, embodiments of the invention have been described, but the present invention only only limits to the foregoing description, under the prerequisite of the scope that the claims that do not break away from the application are put down in writing, design of the present invention can have various variations.

For example, in the above-described embodiments, the situation of throttle body 32 as the means of regulating aspirated volume of using has been described, but the present invention can be applied in also with the situation of carburettor as the means of regulating aspirated volume.

Invention according to above claim 1 is put down in writing when having avoided number of parts to increase, can also prevent that the water and the earth that are splashed by front-wheel from spattering on the throttle gate drum.

In addition,,, can both fasten or unclamp the fixedly operation of the belt of usefulness easily, the transaction capabilities when having improved repair and assembling no matter whether shutter is arranged according to the invention that above claim 2 is put down in writing.

According to the invention that above claim 3 is put down in writing, can prevent that sealing and earth spatter from the side on the throttle gate drum.

Also have,, can improve the waterproof of the function unit of controlling fuel injection valve work and the performance of anti-earth according to the invention that above claim 4 is put down in writing.

Claims

1. motor bike, the part of its vehicle frame (20) be by supporting front-wheel (WF) and handlebar (25), and make its head pipe (21) that can turn to, and from this head pipe (21) to descend main frame (22) formation of extension of the back lower place; Driving engine (E) is suspended on the below of the above-mentioned main frame (22) of above-mentioned vehicle frame (20); The throttle gate (46) that can regulate to above-mentioned driving engine (E) air supplied amount is bearing on the main body (47) of throttle body, can rotate, and throttle gate steel rope (49) is wound on and is connected above-mentioned throttle gate (46) and goes up and be arranged on the throttle gate drum (48) of main body side of above-mentioned throttle body; Be connected the aspirated volume control apparatus (32) on the throttle gate steel rope, and the place ahead that is arranged in above-mentioned aspirated volume control apparatus (32), supply the airfilter (33) that purifies air to this aspirated volume control apparatus (32), be arranged in the top of above-mentioned driving engine (E), it is characterized in that, on the filter casing (70) of above-mentioned airfilter (33), be provided with the above-mentioned throttle gate that covers at least the above-mentioned aspirated volume control apparatus (32) from the place ahead and rouse (48), and the shutter that becomes one with it (79).

2. motor bike as claimed in claim 1, it is characterized in that, go up the opening portion (80) that setting operation is used at above-mentioned shutter (79), its position is being connected on the corresponding position of belt (77) of the fixedly usefulness on the above-mentioned aspirated volume control apparatus (32) with guiding the connection pipe that purifies air (76) that ejects from above-mentioned airfilter (33), and, the lid (81) of the opening portion of can the switch aforesaid operations using (80) has been installed on above-mentioned shutter (79).

3. motor bike as claimed in claim 1 or 2 is characterized in that, the throttle gate drum backplate (161) that covers above-mentioned throttle gate drum (48) from the side is installed on the above-mentioned airfilter (33).

4. as claim 1 or 2 or 3 described motor bikes, it is characterized in that, on throttle body main body (47), the function unit (53) of control to the work of the fuel injection valve (91) of above-mentioned driving engine (E) fuel supplying has been installed as the throttle body (32) of above-mentioned aspirated volume control apparatus.