CN100572182C - Rocking three-wheels vehicle - Google Patents

Abstract

Each functional component of aftercarriage is arranged and supported to a kind of three-wheel vehicle effectively, makes further compactness of aftercarriage and miniaturization, very environmental protection again simultaneously.Aftercarriage (18) links to each other with the rear portion of front vehicle body, aftercarriage is connected so that it can be with respect to rocking freely about front vehicle body, this aftercarriage (18) is being hidden by a whole case (53), is provided with driving engine (76), the trailing wheel (16,16) by this driving engine (76) driving, the exhaust system (52) of driving engine (76) in this case (53).The cylinder part (93) of driving engine (76) is disposed in the case (53) and turns forward.In exhaust system (52), be provided with the catalyst tube (107) and the silencer (111) of purifying exhaust air, and will be used for being arranged in the case (53) to the fuel injection valve (91) and the throttle body (107) of driving engine (76) fuel supplying.

Description

Rocking three-wheels vehicle

Technical field

The present invention relates to waving the improvement project of three-wheeled vehicle, more specifically, the present invention relates to waving the improvement of aftercarriage structure, exhaust system, air intake system structure and airfilter inlet channel structure in the three-wheeled vehicle.

Background technology

For the waved three-wheeled vehicle of general type, the three-wheel vehicle that aftercarriage is provided with case is known (for example can referring to patent document 1).

For the exhaust system of general type, known a kind of pattern is: the catalyst box be disposed in one with silencer independently and be positioned at the housing (for example can referring to patent document 2) of driving engine downside.The exhaust system for motorcycle that is provided with silencer and catalyst on it is known (for example referring to patent document 3).

For common type air intake system structure and the coventional type inlet channel structure on the normal air fil on the waved three-wheeled vehicle of general type, known a kind of pattern is: the admission port of airfilter is set at the upside of the case that is used to hide power unit, and airfilter is disposed in the back (for example can referring to patent document 4) of upright basically cylinder block.

Being disclosed as of each patent document wherein:

[patent document 1] JP-Y 6952/1987

[patent document 2] JP-A 183019/1984

[patent document 3] JP-A 10659/1994

[patent document 4] JP-A 58632/1984

In Fig. 1 of patent document 1, represented a kind of swingable three-wheel vehicle 1, in this three-wheel vehicle, the aftercarriage 3 of two trailing wheels 19 was connected on the rear portion of front vehicle body 2 about it was provided with, front vehicle body 2 wherein is provided with front-wheel 4, handlebar 5, low floor 6 and vehicle seat 8, and makes aftercarriage to wave in side direction.

In addition, Fig. 5 of patent document 1 has represented such situation: aftercarriage is provided with case 20, the power unit 12 that constitutes by driving engine 13 and change speed gear box 14, carburettor 16, airfilter 17, silencer 15, and about two trailing wheels 19 be encapsulated in the inside of case, and be used to separate the partition walls 24 in space between two trailing wheels 19 and the above-mentioned parts, 24 be set at about the inboard of two trailing wheels 19, so that partition walls is extended on longitudinally, and between airfilter 17 and silencer 15, arranged dividing plate 26, made dividing plate 26 extend along longitudinally.

Fig. 3 of patent document 1 expresses case 20 and comprises: header board 21, and it is hiding the front portion of driving engine 13; Center plate 22, it extends back from header board 21, and its rear end is rearward crooked with oblique below; And biside plate 23 (see figure 5)s, they extend downwards from the left and right sides of center plate 22, and are hiding the outside of two trailing wheels, 19 tops.As shown in Figure 4, these members all are connected on the power unit 12, and partition walls 24,24 is connected on the top of change speed gear box 14 and case 20.

In Fig. 1 of patent document 2, represented a kind of motor bike, in this motor bike, freeing pipe 2 extends to the back lower place from the place ahead of driving engine 1, and exhaust gas silencer 4 is connected with freeing pipe 2 by connection pipe 5, and connection pipe 5 is disposed in the downside of driving engine 1.Fig. 2 of patent document 2 has represented such situation: catalyst box 6 is set in the connection pipe 5, and the catalyst 8 of honeycomb structure is encapsulated in the catalyst box 6.

In Fig. 1 of patent document 3, represented a kind of motor bike, in this motor bike 1, freeing pipe 5 extends to the rear portion of car body from the underside of forward that is installed in the driving engine 3 on the motor bike 1, and silencer 6 is coupled on the rear end of freeing pipe 5.Fig. 2 of patent document 3 and Fig. 3 have represented such structure: be provided with the first cocatalyst 10a in the body 5b of freeing pipe 5, and form the first expansion chamber A, the second expansion chamber B and the 3rd expansion chamber C, and major catalyst 18 is arranged so that the first expansion chamber A and the second expansion chamber B are interconnected by utilizing first insulator 14 and second insulator 15 that the inside of the outer pipe shell 16 of silencer 6 is separated.

Fig. 2 of patent document 4,3 and Fig. 5 in, represented a kind of inlet channel structure, in this inlet channel structure, top inlet channel 30 is set at the upside of the case 11 that is used to hide power unit 12, the upper end of bottom inlet channel 31 is connected with top inlet channel 30, and bottom inlet channel 31 extends downwards, and communicating pipe 17,18,19 is connected on the stage casing of bottom inlet channel 31, these communicating pipes 17,18,19 basically along continuous straight runs extend, and be connected with the housing 16 of airfilter 15.Airfilter 15 length in the vertical is greater than in a lateral direction width.

Shown in Figure 3 as patent document 1, because the cylinder part of driving engine 13 is arranged to be essentially erectility, so, the position height at the center 22 of case 20, aftercarriage 3 is in a high position.In addition, recently, wish that also small size can wave the influence that three-wheeled vehicle is also considered environment.

In addition, the lower member of case 20 is connected on the front and rear of power unit 12, and the connection work of case 20 also is not easy, and needs to guarantee the rigidity of case.In addition, owing to need to improve the performance of each functional component, each functional component can be arranged and connect to hope effectively.

In patent document 2, the volume of connection pipe 5 that is encapsulating honeycombed catalyst 8 is very big, reason is that the external diameter of connection pipe is substantially the same with the external diameter of exhaust gas silencer 4, therefore the layout of this connection pipe is restricted, and in addition, connection pipe has also caused influence to the road clearance of motor bike.In addition, because connection pipe 5 is by outside open, so, for example under insulator is installed in situation in the connection pipe 5, when design, need consider the layout of insulator.

And in patent document 3, the first cocatalyst 10a is disposed in the freeing pipe 5, and major catalyst 18 is disposed in the silencer 6.

But because major catalyst 18 is disposed in the silencer 6, the size of silencer 6 will strengthen, and the width at motor bike 1 rear portion can be widened.That is to say that the size of rear vehicle has been strengthened.In this undersized vehicle, because free space is limited, so wish further densification of silencer.In addition, by major catalyst 18 being arranged in the top of silencer 6, the center of gravity of silencer 6 is raise, the result is exactly that the center of gravity of car body has been raised.

For example, be encapsulated in and the outside shell 16 of silencer 6 mutually independently in the housing and be disposed under the situation in the other space at major catalyst 18, can effectively utilize the space on the motor bike 1, other space wherein for example is the space of driving engine 3 tops.

In addition, freeing pipe 5 need be prolonged the exhaust noise that is produced by predetermined engine speed to weaken, and need to guarantee the predetermined length of freeing pipe.But under the situation that the length of freeing pipe just extends longitudinally, the longitudinal length of car body will be extended.

In addition, be set in freeing pipe 5 and the silencer 6 under the situation on the exhaust flow path at the first cocatalyst 10a, the second cocatalyst 10b and major catalyst 18, because the each several part catalyst that links to each other can hinder waste gas flowing on exhaust flow path successively, the power output meeting variation of driving engine, thereby need reduce the resistance of exhaust of exhaust passage in freeing pipe 5 and the silencer 6, for example improve power output thus.

Recently, for swingable three-wheel vehicle, hope can be designed to have fuel efficiency and environment is had the vehicle of better compatibility, and realizes such vehicle, wishes to make the layout of each constituent elements of vehicle (also comprising new constituent elements) more compact.

Shown in patent document 4, if the area of airfilter 15 sides is very big, and airfilter 15 for example is disposed on the position of departing from the cross-car center to the left or to the right, then the inflow noise of airfilter 15 just is easy to emission and opens, and special prevents that every the structure of making an uproar inflow noise is diffused into the external world thereby need to adopt.Because airfilter 15 deflection lefts or right-hand,, and be difficult to guaranteed performance so its volume just is restricted.

Enter into the water droplet of bottom inlet channel 31 and the bottom that dust will drop to bottom inlet channel 31 through top inlet channel 30, still, what little water droplet and small dust may be through being arranged on the decline road enters into airfilter 15 communicating pipe 17,18,19.

In addition, shown in Figure 5 as patent document 4, top inlet channel 30 at the width on the cross-car greater than the width of airfilter 15 on cross-car, the width of bottom inlet channel 13 has also occupied a similar half width of airfilter, owing to need very big space, so will increase the size of car body.

Summary of the invention

An object of the present invention is to improve swingable three-wheel vehicle, and, make aftercarriage realize further densification and miniaturization by based on each functional component of the consideration of environmental conditions being arranged and supported aftercarriage effectively.

Another object of the present invention is: by the exhaust system that can wave on the three-wheel vehicle is improved, realize the effective utilization to space on the vehicle, the center of gravity that makes car body miniaturization and densification, reduction car body, restriction freeing pipe longitudinal length, guarantee the length of freeing pipe and make driving engine be easy to the output characteristic that reaches required.

A further object of the present invention is: by the structure that can wave air system on the three-wheel vehicle and the inlet channel structure of airfilter are changed, make the volume of airfilter be easy to obtain to guarantee, reduce inflow noise, more effectively water droplet and dust be removed away and made the car body compactness that becomes from air inlet.

The invention that limits in the technical scheme 1 is based on that a kind of three-wheel vehicle finishes, in this three-wheel vehicle, aftercarriage is coupled on the rear side of front vehicle body, so that aftercarriage can be swung in the horizontal with respect to front vehicle body, aftercarriage is being hidden by all-in-one-piece case, and the case ladle cover driving engine, by engine-driven rear wheel part and engine's exhaust system.In case inside, the cylinder part of driving engine is disposed on the state that turns forward.In exhaust system, be provided with the catalyst container and the silencer champer that are used for purifying exhaust air, and be provided with fuel injection valve and the throttle body that is used for fuel is transported to driving engine in the inside of case.

By cylinder part is turned forward, can effectively utilize the space of driving engine top.In addition, fuel injection valve and throttle gate physical efficiency are accurately controlled fuel quantity and the amount of air that flows to engine chamber, in addition, utilize catalyst container that waste gas is cleaned further.In addition, owing to driving engine, trailing wheel, catalyst container, silencer champer, fuel injection valve, throttle body are disposed in the inside of whole case, thus can implement concentrated protection to each above-mentioned parts effectively, and can improve outward appearance.

Technical scheme 2 described inventions are characterised in that: radiator is set at case inside.

Wind is difficult to blow on the case in-to-in driving engine even travel, and travels wind to radiator by making, also cooled engine fully.

In addition, because driving engine and radiator are disposed in case inside, so can shorten the radiator hose that connects driving engine and radiator.

Technical scheme 3 described inventions are based on that a kind of three-wheel vehicle that shakes finishes, and in this three-wheel vehicle, aftercarriage is coupled on the rear side of front vehicle body, so that aftercarriage can be swung in the horizontal with respect to front vehicle body.The a plurality of functional components that are used for driving the driving engine of trailing wheel and are arranged on the driving engine top are disposed in aftercarriage.The case that is used to hide driving engine and a plurality of functional components is utilized strut and is fixed to driving engine.Strut is arranged such that each functional component is separated out in birds-eye view.

Be connected on the part of driving engine top and case is fixed under the situation on the part of strut top at strut, case is easy to connect, and annexation is firm.In addition, can be effective and systemic arrange each functional component.

Technical scheme 4 described inventions are characterised in that: strut will be separated as catalyst container functional component, that constituted engine exhaust system and silencer champer and as airfilter and throttle body functional component, that constituted engine aspirating system.

As observing, as seen be spaced by catalyst container and silencer champer parts group of forming and the parts group of forming by airfilter and throttle body from the top.Can be according to function, systemic catalyst container, silencer champer, airfilter and the throttle body arranged, for example the insulator that the heating that is used for preventing exhaust system can be delivered in the air system easily is connected to strut.

Technical scheme 5 and 10 inventions that limited are based on that a kind of exhaust system that can wave in the three-wheel vehicle finishes, and in this exhaust system, catalyst container and silencer champer are inclusive in the housing separate in the exhaust system.Catalyst container is disposed in the top of driving engine, and silencer champer is disposed in the back of driving engine, and is positioned at the below of catalyst container.

Catalyst container is disposed in the top of driving engine, thereby can effectively utilize the space of driving engine top.In addition, because catalyst container and silencer champer are inclusive in the independent housing, so the volume of silencer champer can not increase, and can guarantee extended from the driving engine sidepiece, as to be used for freeing pipe that catalyst container and silencer champer are interconnected total length.In addition, by silencer champer being arranged in the back of driving engine and being positioned at the below of catalyst container, also can guarantee the total length of freeing pipe.In addition, by reducing the position of heavier relatively silencer champer, the center of gravity of car body is reduced.In addition, can simplify the outer shape of rear vehicle.

Technical scheme 6 and 11 inventions that limited are based on that a kind of exhaust system that can wave in the three-wheel vehicle finishes, and in this exhaust system, catalyst container and silencer champer are inclusive in the housing separate in the exhaust system.Catalyst container is arranged such that with silencer champer their longitudinally is vertical in birds-eye view, and the constituent elements one that has constituted engine aspirating system for example airfilter and throttle body is disposed in the space, and silencer champer and catalyst container have constituted two sides in this space.

With catalyst container or silencer champer be arranged to make its longitudinally car body vertically on extend, and be arranged to make its longitudinally to extend on the direction of width over sides of car body another person in catalyst container and the silencer champer, such scheme for example can limit the longitudinal length of freeing pipe.In addition, can form tetragonal space, two sides in this space are made of silencer champer and catalyst container.Can effectively and compactly be arranged in this quadrangle space such as constituent elementss such as airfilter and throttle bodies.

Technical scheme 7 and 12 inventions that limited are based on that a kind of exhaust system that can wave in the three-wheel vehicle finishes, and in this exhaust system, catalyst container and silencer champer are inclusive in the housing separate in the exhaust system.Be provided with many paths that are used for the waste gas of discharging from catalyst container is guided into silencer champer.Main channel in these paths leads to a chamber that is arranged in the upstream side of silencer champer, and other path leads to the chamber in the downstream that is positioned at the upstream side chamber of silencer champer.

Many the paths that utilization is used for the waste gas of discharging from catalyst container is guided into silencer champer have enlarged the cross-sectional area of each exhaust steam passage, and have reduced the resistance of exhaust of waste gas.

Technical scheme 8 and 13 inventions that limit are characterised in that: be used to connect the multi-lumen tube that is made into communicating pipe of catalyst container and silencer champer, and utilize many passages in the multi-lumen tube to form many paths.

Be made into the form of multi-lumen tube communicating pipe, and many paths of waste gas are incorporated into together.Because multi-lumen tube links up catalyst container and silencer, so can guarantee to realize being communicated with.

Technical scheme 9 and 14 inventions that limited are based on that a kind of exhaust system that can wave in the three-wheel vehicle finishes, and in this exhaust system, catalyst container and silencer champer are inclusive in the housing separate in the exhaust system.Catalyst container is set at by between engine-driven pair of right and left trailing wheel, and is set at the inside of whole case, about case is wherein hiding two trailing wheels above.

Between two trailing wheels, the space between two trailing wheels had obtained the actv. utilization about catalyst container was set at.Catalyst container is being hidden by case, thereby has improved appearance property.

Technical scheme 15 and 20 inventions that limit are characterised in that: swingable three-wheel vehicle comprises an air intake system structure, and the airfilter that constitutes air intake system structure about between two trailing wheels, and be positioned at the back of the throttle body that is used for fuel metering supply system charge flow rate, fuel system wherein is provided with fuel injection valve.

The space has obtained the actv. utilization, makes fuel injection valve can be disposed in the top of the cylinder part that leans forward.The throttle body that is used to regulate the fuel system charge flow rate that is provided with fuel injection valve has been installed, so that fuel saving, and cleaning exhaust gas.

In addition, between two trailing wheels about airfilter is arranged in, can increase the volume of airfilter, and by airfilter being arranged in the back of throttle body (it is positioned at the center position of driving engine substantially on the width over sides of car body direction), airfilter also can be arranged in the cardinal principle center position of width over sides of car body direction, thereby the inflow noise of airfilter can leak into outside the car body hardly.

In addition, at the back of throttle body, the space between two trailing wheels has obtained the actv. utilization.

Technical scheme 16 and 21 inventions that limit are characterised in that: throttle body and fuel injection valve are disposed on the line of centers of car body, and this line of centers is along the longitudinal extension of car body.

Because driving engine is disposed on the line of centers of car body basically, and throttle body also is disposed on the line of centers of car body, thus can utilize air inlet pipe that driving engine and throttle body are coupled together with the shortest basically distance, and can obtain the intake efficiency of being satisfied with.

Technical scheme 17 and 22 inventions that limit are characterised in that: airfilter is designed to be greater than in the length of car body on vertically at the width on the cross-car, and airfilter is arranged to the line of centers traversed by with car body.

Because about the airfilter that width on the cross-car increases can be disposed between two trailing wheels, so, even airfilter is shortened in the length of car body on vertically, also can easily guarantee the volume of airfilter.

Technical scheme 18 and 23 disclosed inventions are characterised in that: can wave three-wheel vehicle and be included as the air system that driving engine is provided with, and air system is included as the inlet channel structure that airfilter is provided with.The admission port of airfilter is provided with: lead to first parts of vessels of top, it extends downwards; Second parts of vessels that links to each other with first parts of vessels, it extends downwards; And the 3rd parts of vessels, an opening on the one end is communicated with the upper end of second parts of vessels, and the other end of the 3rd parts of vessels is connected with the dirty side of airfilter.The 3rd parts of vessels extends above second parts of vessels, and leads to the top part of airfilter.

Because first parts of vessels and second parts of vessels extend downwards, and the opening of the 3rd parts of vessels is communicated with the upper end of second parts of vessels, so, the outside air that sucks from the opening of first parts of vessels flow into downwards second parts of vessels from first parts of vessels, formed the turning of a U-shaped from second parts of vessels to the, three parts of vessels, outside air is upwards flowed.

Thereby, in second parts of vessels inlet air with water droplet and dust will in second parts of vessels, descend, and from air, removed away, have only differential air not multipotency flow into the dirty side of airfilter from upper end the 3rd parts of vessels of second parts of vessels.

In addition, because first parts of vessels and second parts of vessels extend downwards, thus reduced the space that first parts of vessels and second parts of vessels occupy in the horizontal direction, and can increase the better purifying space of airfilter.

Technical scheme 19 and 24 disclosed inventions are characterised in that: at least one parts in first parts of vessels, second parts of vessels and the 3rd parts of vessels are set on the turning of case of air cleaner, and cross-sectional plane is made into triangle.

The invention that is limited according to technical scheme 1, because the cylinder part of driving engine is arranged to the state that turns forward in case, be provided with the catalyst container and the silencer champer that are used for purifying exhaust air in the exhaust system, and the fuel injection valve and the throttle body that are used for fuel is transported to driving engine are disposed in the case, so, by cylinder part is leaned forward, can effectively utilize the space of driving engine top.In addition, fuel injection valve and throttle gate physical efficiency are accurately controlled fuel and the amount of air that flows to engine chamber, in addition, can utilize catalyst container that waste gas is carried out more efficiently cleaning.Because driving engine, trailing wheel, catalyst container, silencer champer, fuel injection valve and throttle body are disposed in the all-in-one-piece case, thus can implement concentrated protection to each above-mentioned parts effectively, and can improve outward appearance.

The invention that is limited according to technical scheme 2, because radiator is disposed in case inside, can utilize cooling water expansion tank to cool off effectively and be positioned at case in-to-in driving engine, wherein, by making wind to radiator, can utilize radiator that the heat of cooling water expansion tank is taken away, can improve the cooling performance of driving engine thus, and realize densification.In addition, radiator can be made near driving engine, thereby can shorten the radiator hose that connects radiator and driving engine, and cost-cutting.

In addition, for example for the situation that on case, is provided with the louver that is positioned at radiator the place ahead, be arranged to meet at right angles by louver with the car body longitudinal axis with case, make each perforate dried up horizontal line of downward bias slightly, and with the shutter blade arrangement in vertical direction, can introduce the quick air-flow that is arranged in the car body bottom effectively.

The invention that is limited according to technical scheme 3, because driving engine is disposed in the aftercarriage with a plurality of functional components that are arranged on the driving engine top, the case that is used to hide driving engine and a plurality of functional components is fixed to driving engine by strut, and strut is configured to like this: make each functional component be separated out in birds-eye view, so, case can firmly and easily be connected on the strut that launched machine supporting, and be directly connected to situation on the driving engine than airfilter, size enlarged functional parts one for example airfilter can more firmly be connected on the strut.As mentioned above, be not only case, each functional component all can be connected on the strut, and each functional component can both be arranged effectively that aftercarriage has obtained densification, can be effective and systemic arrange each functional component.

The invention that is limited according to technical scheme 4, owing to be arranged on catalyst container and the silencer champer in the exhaust system and comprise airfilter and the air system of throttle body is separated out in birds-eye view, so can be according to function, systemic arrange catalyst container, silencer champer, airfilter and throttle body, and the insulator that the heating that is used to prevent exhaust system for example passes to air system can easily be connected to strut.

According to technical scheme 5 and 10 inventions that limited, because catalyst container is disposed in the top of driving engine, so can effectively utilize the space of driving engine top.

In addition, because catalyst container and silencer champer are encapsulated in independently in the housing, so total length extended from driving engine, that be used for freeing pipe that catalyst container and silencer champer are interconnected can be extended, and is easy to guarantee the length of freeing pipe.

In addition, also prolong freeing pipe, and can guarantee the length of freeing pipe by the below that silencer champer is arranged in the back of driving engine and is positioned at catalyst container.

In addition,,, and can reduce the size of rear vehicle, in addition, reduce, can reduce the center of gravity of car body by the position of heavier silencer champer relatively so can simplify the face shaping of rear vehicle because the position of silencer champer has been lowered.

According to technical scheme 6 and 11 disclosed inventions, by catalyst container or silencer champer are arranged to make its vertically vehicle vertically on extend and with the two in another person be arranged to make it vertically for example on the width over sides of car body direction, to extend, just can limit the longitudinal length of exhaust system, and guarantee by the total length that is encapsulated in the exhaust system that catalyst container in the independent case and silencer champer form.

In addition, owing to can form tetragonal space, and the both sides in this space are made of silencer champer and catalyst container, so can enlarge the area in this quadrangle space, constituent elements can be arranged efficiently in the quadrangle space, and can obtain densification.

According to technical scheme 7 and 12 disclosed inventions, utilize many paths that the cross-sectional area of each exhaust steam passage is enlarged, the waste gas that path wherein is used for discharging from catalyst container drains into silencer champer, so just can reduce the resistance of exhaust of waste gas, and can easily obtain required output characteristic, guarantee exhaust-gas purifying performance and noise absorption performance.

According to technical scheme 8 and 13 disclosed inventions, owing to be made into the form of multi-lumen tube communicating pipe, thus each bar stream of waste gas is become closely, and catalyst container and silencer champer can be linked up securely.

According to technical scheme 9 and 14 disclosed inventions, because containing silencer champer that the catalyst container and being used to of catalyst absorbs exhaust noise is encapsulated in independently in the housing, and catalyst container is set at by between engine-driven pair of right and left trailing wheel, so the space between two wheels about can effectively utilizing.In addition because catalyst container is set in the whole case, and case hiding about the top of two trailing wheels, so catalyst container is being hidden by case, appearance property is improved.

According to technical scheme 15 and 20 disclosed inventions, because driving engine is provided with the cylinder part that turns forward, about the airfilter that has constituted engine aspirating system is disposed between two trailing wheels, and be positioned at the throttle body back of (it is used to regulate the charge flow rate of the fuel system that is provided with fuel injection valve), so can effectively utilize the space, make fuel injection valve be disposed in to lean forward the top of cylinder part, and the throttle body of the charge flow rate that is used to regulate the fuel system that is provided with fuel injection valve has been installed, so that fuel saving and cleaning exhaust gas.

In addition, between two trailing wheels about airfilter is arranged in, can increase the volume of airfilter, and by airfilter being arranged in the back of throttle body, and throttle body mediates on the Width of car body substantially, just airfilter can be arranged on the Width of car body, also be positioned at midway location substantially, thereby the inflow noise of airfilter can leak into the car body outside hardly.

In addition, the place, back at throttle body can effectively utilize the space between the trailing wheel.

According to technical scheme 16 and 21 disclosed inventions, because throttle body and fuel injection valve are disposed in along on the car body line of centers of car body longitudinal extension, so, be disposed at driving engine under the situation of car body center, the air inlet pipe that connects driving engine and throttle body can be reduced, and intake efficiency can be improved.

According to technical scheme 17 and 22 disclosed inventions, since airfilter at the width on the cross-car greater than in the length of car body on vertically, and airfilter is arranged to the line of centers traversed by with car body, so, about between two trailing wheels, the width of airfilter on cross-car can be increased, and can guarantee the volume of airfilter.In addition, the length of airfilter on car body is vertical has been reduced, and makes airfilter realize densification.

According to technical scheme 18 and 23 disclosed inventions, utilize second parts of vessels that extends and the 3rd parts of vessels that is connected with the upper end of second parts of vessels downwards, can more effectively water droplet and dust be got rid of from suction air.Can reduce to comprise the occupied in the horizontal direction space of inlet channel structure of first parts of vessels, second parts of vessels and the 3rd parts of vessels, make airfilter realize densification, and can easily guarantee the volume of airfilter better purifying space.

According to technical scheme 19 and 24 disclosed inventions, because at least one parts in first parts of vessels, second parts of vessels and the 3rd parts of vessels are set on the turning of case of air cleaner, and cross-sectional plane is made into triangle, so effectively utilized the space of corner, and made airfilter realize densification.

Description of drawings

Lateral plan among Fig. 1 has been represented according to a kind of three-wheel vehicle that waves of the present invention;

Lateral plan among Fig. 2 has been represented the aftercarriage that waves three-wheel vehicle (first embodiment) according to of the present invention;

Birds-eye view among Fig. 3 has been represented the main portion of waving three-wheel vehicle (first embodiment) according to of the present invention;

Lateral plan among Fig. 4 is used for introducing according to radiator arrangement of the present invention;

Fig. 5 is the view of making along 5 directions of arrow among Fig. 4;

Lateral plan among Fig. 6 has been represented according to radiator of the present invention and shutter blade;

Fig. 7 is the cutaway view of being done along the 7-7 line among Fig. 3 (to first embodiment);

Fig. 8 is the cutaway view of being done along the 8-8 line among Fig. 2 (to first embodiment);

Fig. 9 A and Fig. 9 B have represented according to first embodiment of the invention catalyst tube and noise reduction

Each crawler behavior of off-gas flows in the device;

Lateral plan among Figure 10 has been represented the aftercarriage that waves three-wheel vehicle (second embodiment) according to of the present invention;

Birds-eye view among Figure 11 has been represented the main portion of waving three-wheel vehicle (second embodiment) according to of the present invention;

Figure 12 is the front elevation that waves the aftercarriage of three-wheel vehicle (second embodiment) according to of the present invention;

Cutaway view among Figure 13 A and Figure 13 B has been represented according to airfilter of the present invention; And

Figure 14 A and 14B have represented the crawler behavior of charge air flow in airfilter according to the present invention.

Drawing reference numeral is defined as follows:

10...... undersized vehicle (but rolling vehicle, swingable three-wheel vehicle)

14...... front vehicle body

16...... trailing wheel

18...... aftercarriage

51...... air system

52...... exhaust system

53...... case

71...... strut (brace member)

73...... radiator

76...... driving engine

91...... fuel injection valve

93...... cylinder part

96...... throttle body

98...... airfilter

107...... catalyst container (catalyst tube)

108...... communicating pipe (final vacuum pipe)

111...... silencer champer (silencer)

130...... drive element

140...... car body line of centers

143...... case of air cleaner

146...... second parts of vessels (conduit room)

151...... the 3rd parts of vessels (upper conduit)

151a...... first perforate

170...... housing

190...... housing

197...... be positioned at a chamber (first chamber) of upstream side

199...... be positioned at the chamber (the 3rd chamber) in the downstream of upstream side chamber

218...... first parts of vessels

235...... admission port

The specific embodiment

With reference to the accompanying drawings preferred implementation of the present invention is introduced.Should read the figure direction as accompanying drawing with the direction of drawing reference numeral.

Lateral plan among Fig. 1 has been represented according to a kind of swingable three-wheel vehicle of the present invention (first embodiment), by utilizing wabble mechanism 21 that front vehicle body 14 and aftercarriage 18 are linked up, make aftercarriage 18 can swing and make aftercarriage to make this and can wave three-wheel vehicle 10 in vertical direction with respect to front vehicle body 14 lift-over in the horizontal, front vehicle body 14 wherein is provided with and is used for the handlebar 12 that a front-wheel 11 is turned to and is convenient to the seat 13 that the rider takes, and aftercarriage is provided with pair of right and left trailing wheel 16 and is used to drive the power unit 17 of two trailing wheels 16.

In front vehicle body 14, be provided with front cover shell 23 in the place ahead of handlebar 12, above front cover shell 23, connected the windscreen 26 that has Windshield Wiper 24, lower portion place between handlebar 12 and seat 13 is provided with tramples base plate 27, pair of right and left pillar 28,28 (only having expressed the label 28 that is positioned at this side among the figure) is made into from the seat 13 rear side and erects, between windscreen 26 and each pillar 28,28, be provided with a ceiling 31, and cargo compartment 32 has been arranged at 13 back at the seat.Label 35 refers to front fender apron, it is hiding the top of front-wheel 11, label 36 refers to back mirror, label 37 refers to headlight, 38 refer to the Fuel Tank that is arranged on below the seat 13,41 refer to the petrolift that is arranged in the Fuel Tank 38, and 42 refer to the car body framework that is arranged in front vehicle body 14 1 sides and the buffer cell between the wabble mechanism 21.

In aftercarriage 18, air system 51 and exhaust system 52 are connected on the power unit 17, and power unit 17, air system 51, exhaust system 52, other functional component and two trailing wheels 16,16 are being hidden by all-in-one-piece case 53.

Wabble mechanism 21 comprises: connecting rod 55, one end are connected on the bottom of car body framework of front vehicle body 14, so that this connecting rod can be swung in the vertical; And engaging case shell 57, its front end links to each other with the other end of connecting rod 55, can be swung so that engage the case shell, and the rear end of this joint case shell utilizes support 56 to link to each other with the power unit 17 of aftercarriage 18.

Engaging case shell 57 comprises: housing 61; Engages axle 62, it is inserted in the housing 61 rotationally, and its rear portion is connected on power unit 17 1 sides; And damping components 63, it is disposed between housing 61 and the engages axle 62.

Damping components 63 is so-called Neidhart type dampers, it is by being plugged on a plurality of columnar rubber blocks between a plurality of extruded member and the housing 61 and utilizing the extruding rubber block that relatively rotates between extruded member and the housing 61 to produce shock damping action, and extruded member is wherein radially extended from engages axle 62.

Lateral plan among Fig. 2 (local for cutaway view) has been represented the aftercarriage that waves three-wheel vehicle (first embodiment) according to of the present invention, this view table shows: support 56 is connected to bolt 66,66 on the engages axle 62 that forms wabble mechanism 21, the bottom of power unit 17 is connected on the support 56 with bolt 67,67, air system 51 is connected on the top of the cylinder cap 68 of forming power unit 17, exhaust system 52 is connected on the bottom of cylinder cap 68, and the brace member 71 that is used to support case 53 is connected to the top of power unit 17.Arrow among Fig. 2 (forward) is represented the place ahead (following similar) of vehicle.Label 73 among Fig. 2 refers to the radiator that is arranged in power unit 17 right sides.

Power unit 17 comprises driving engine 76 and the positive infinite variable driving device 77 that connects as one with driving engine 76, the rotation of bent axle 81 passes to driven shaft 83 by belt 82, and be delivered to output shaft 84 from driven shaft 83, and then left and right sides trailing wheel 16 (see figure 1)s that link to each other with output shaft 84 of driving by the gear (not shown).Reference numeral 86 refers to cylinder head cover, and label 87 refers to cylinder body, and label 88 refers to the housing of transmission system.

Cylinder cap 68 links to each other with air inlet pipe 95, be used for fuel injection is fixed to this air inlet pipe 95 to the fuel injection valve 91 of inlet channel, be made of resin and be connected on the fuel injection valve 91 from the extended fuel hose 92 of petrolift 41 (see figure 1)s of Fuel Tank 38 (see figure 1)s.

Above-mentioned cylinder body 87, cylinder cap 68 and cylinder head cover 86 have constituted the cylinder part 93 of driving engine 76, and on the direction of cardinal principle level, cylinder part 93 turns forward.

Air system 51 comprises: air inlet pipe 95, be connected to the throttle body 96 on air inlet pipe 95 ends; Connection pipe 97, it is connected on the inlet side of throttle body 96; And airfilter 98, it is connected on the connection pipe 97, and throttle body 96 and airfilter 98 all are positioned at the top of power unit 17, and airfilter 98 is being supported by brace member 71.Label 101 refers to the throttle gate backguy, and it extends from the throttle gate handle that is positioned at handlebar 12 (see figure 1) sidepieces, is used for opening or closing the throttle gate that is arranged on throttle body 96.

Exhaust system 52 comprises: front exhaust pipe 106, and the one end is connected on the bottom of cylinder cap 68 by bolt 104,104 and nut 105,105, and this freeing pipe extends upward substantially in the left side of cylinder cap 68; Catalyst container 107, it is connected on the other end of front exhaust pipe 106, and extends back, and this catalyst container is downward-sloping slightly in the process that extends back; Final vacuum pipe 108, it is connected on the rear portion of catalyst container 107, and rearward and tiltedly extends; Silencer 111, it is connected on the rear end of final vacuum pipe 108; And trail pipe 112, its from silencer 111 to the oblique extension in the back lower place.Silencer 111 is disposed on the position that is lower than catalyst container 107, and silencer 111 is connected to from the protrusion 88a of change speed gear box 88 upper process by support 114.

Because front exhaust pipe 106 extends upward basically from the bottom of cylinder cap 68, catalyst container 107 essentially horizontally extends back, and final vacuum pipe 108 rearward and tiltedly extends, so, if will regard a freeing pipe as to the sections the final vacuum pipe 108 from front exhaust pipe 106 and cylinder cap 68 connecting bridges, then can be at the finite space that is positioned at aftercarriage 18 cases 53, prolong the total length of this freeing pipe-be the length of freeing pipe further.

Brace member 71 comprises: strut body 117, and it is connected on the power unit 17, and erects; Frame member 118, it is connected on the upper end of strut body 117; And case supporting bracket 121, it is connected on the frame member 118.

Strut body 117 comprises front strut 124,125 and rear pole 127, and rear pole 127 is such members: it is between airfilter 98 and silencer 111, and connected insulator 128 thereon, this insulator is used for the transmission of isolated heat, thus heat transferred airfilter 98 and other parts of stoping silencer 111 to send.

Case supporting bracket 121 comprises: pair of right and left front frame 131,131 (only having expressed the label 131 that is positioned at diagram one side among the figure), and they are set at the place ahead; And pair of right and left after poppet 132,132 (only having expressed the label 132 that is positioned at diagram one side among the figure), they are set at the rear, and all-in-one-piece case 53 is connected on the support across rubber by bolt 133.

Case 53 is such members: its front portion is provided with the place ahead perforate 136, the side of cylinder cap 86 is made into anterior relative by this perforate 136 and car body, and the top of this member is provided with breather port 137, it has labyrinth structure, be used for case 53 is ventilated, and the rear portion of member is provided with rear perforate 138.

The constituent elements of the constituent elements of air system 51, exhaust system 52 and fuel injection valve 91 all are functional components, and these functional components and power unit (being driving engine 76 and positive infinite variable driving device 77) have formed the drive element 130 that is used to drive trailing wheel 16.

As mentioned above, the present invention is based on three-wheel vehicle 10 and finishes, in this three-wheel vehicle, the connection mode that is connected to aftercarriage 18 and front vehicle body 14 on front vehicle body 14 rear sides makes aftercarriage to wave in the horizontal, and aftercarriage 18 is being hidden by whole case 53, be provided with driving engine 76 in the aftercarriage, trailing wheel 16 by driving engine 76 drivings, 16, and the exhaust system 52 that is positioned at case 53 in-to-in driving engines 76, this three-wheel vehicle is characterised in that: in the inside of case 53, the state that the cylinder part 93 of driving engine 76 is arranged to turn forward, be used for purifying exhaust air, catalyst tube 107 and silencer 111 as catalyst container, and be used for all being disposed in case 53 to the fuel injection valve 91 and the throttle body 96 of driving engine 76 transfer the fuels, wherein, formed silencer 111 owing in exhaust system 52, being provided with silencer champer.

Thereby, turn forward by making cylinder part 93, can effectively utilize the space of driving engine 76 tops.Fuel injection valve 91 and throttle body 96 can accurately be controlled fuel quantity and the amount of air that is transported in driving engine 76 combustion chambers, in addition, can utilize catalyst tube 107 purifying exhaust air further.Because driving engine 76, trailing wheel 16,16, catalyst tube 107, silencer 111, fuel injection valve 91 and throttle body 96 are disposed in the whole case 53, thus can implement concentrated protection to above-mentioned each constituent elements effectively, and improved outward appearance.

In addition, as mentioned above, the present invention is based on and finishes as the exhaust system 52 of the waved three-wheel vehicle of dilly, in this exhaust system, catalyst tube 107 and silencer 111 are included in the separate housing 170 and 190 individually, encapsulating in the catalyst tube wherein and be used for catalyst that the waste gas of discharging from driving engine 76 is purified, 111 in silencer is used to absorb exhaust noise, this invention is characterised in that: catalyst tube 107 is disposed in the top of driving engine 76, and silencer 111 is disposed in the back of driving engine 76, and is lower than catalyst tube 107.

Because catalyst tube 107 is disposed in the top of driving engine 76, so can effectively utilize the space 155 of driving engine 76 tops.

In addition, because the housing 170 of catalyst tube 107 is what to separate with the housing 190 of silencer 111, so can further increase 76 extended from driving engine, as to be used for freeing pipe that catalyst tube 107 and silencer 111 are interconnected total length, and be easy to guarantee the length of freeing pipe.

In addition, silencer 111 is arranged in the back of driving engine 76, and makes it be lower than catalyst tube 107, can prolong freeing pipe like this, and guarantee the length of freeing pipe.

In addition, because the position of silencer 111 has been lowered, thus can simplify the shape of rear vehicle, and can make rear vehicle realize miniaturization, in addition,, can reduce the center of gravity of car body by reducing the position of heavier relatively silencer 111.

In addition, the invention is characterized in: the whole case 53 on two trailing wheels, 16,16 tops about catalyst tube 107 is set at and is used for hiding.

Catalyst tube 107 is being hidden by case 53, thereby can improve the appearance property of aftercarriage 16.

Birds-eye view among Fig. 3 has been represented the main portion of waving three-wheeled vehicle (first embodiment) according to of the present invention, this accompanying drawing has been expressed such situation: by two trailing wheels 16 about power unit 17 is arranged on, between 16, the throttle body 96 that constitutes air system 51 is arranged in along on the car body line of centers 140 of car body longitudinal extension, airfilter 98 is arranged in the back of throttle body 96, make the catalyst tube 107 that constitutes exhaust system 52 along the car body longitudinal extension, and silencer 111 is extended on the Width of car body, just can with catalyst tube 107 vertically with silencer 111 vertically be arranged to mutual vertical. Drawing reference numeral 141A, 141B refer to the wheel shaft of two trailing wheels 16,16, and these two wheel shafts are coupled to each other by the box of tricks (not shown).

Throttle body 96 is connected on the rear end of the air inlet pipe 95 that extends back from cylinder cap 68.

Three positions, airfilter 98 is connected on the rear portion of beam shape frame member 118 with bolt 142, tetragonal case of air cleaner 143 has constituted airfilter 98, if observe from the top, as seen the size of this housing 143 on car body is vertical is shorter, and the longer dimension on the width over sides of car body direction, in birds-eye view, case of air cleaner is separated into a leg-of-mutton conduit chamber 146 and a purification chamber 147 by next door 144, on the upper wall on the top of conduit chamber 146, be provided with leg-of-mutton admission port 148, and on the upper wall of case of air cleaner 143, be provided be used for conduit chamber 146 with purify the upper conduit 151 that chamber 147 is interconnected.S1 among Fig. 3 represents the width of airfilter 98 on cross-car, and S2 represents the length of airfilter 98 on car body is vertical, and S1＞S2.The prolongation of drawing reference numeral 152 representatives and connection pipe 97 one, and this prolongation is to be disposed in the part that purifies in the chamber 147.

Catalyst tube 107 and silencer 111 have constituted two sides in quadrangle space 155.

Because space 155 is tetragonal, so between two trailing wheels 16,16, can obtain bigger area, throttle body 96, airfilter 98 and other many functional components (for example fuel injection valve 91, electric unit and not shown battery) can be by systematicness ground, closely be arranged in this space 155, thereby can realize densification, and space 155 can obtain the actv. utilization.

Frame member 118 comprises: preceding framework 161, and it extends on the width over sides of car body direction, and intersects with the top of catalyst tube 107 front ends; Back framework 162, the back of framework 161 before it is disposed in, and parallel with preceding framework 161; Left side framework 163, in car body inside, it is connected on the left end of preceding framework 161, thereby vertical with back framework 162 with preceding framework 161; And right framework 164, it is positioned at the right side of left framework 163, in parallel then before framework 161 and back framework 162, and parallel with left framework 163.Airfilter 98 is connected on left framework 163 and the right framework 164.

Back framework 162 is such members: its rear pole 127 that is substantially V-arrangement is supporting.

Radiator 73 is connected on the right front portion of cylinder body 87 and change speed gear box 88 by one case cover (not shown), and the side from cylinder body 87 stretches out in the place ahead of off hind wheel 16.Drawing reference numeral 73a refers to radiator cap.

Case 53 is represented by the long and short dash line of alternately forming with dash line and two short-terms, it is hiding the top of power unit 17, air system 51, exhaust system 52, trailing wheel 16,16, brace member 71 and radiator 73, and it is provided with and is used for the wind that travels is incorporated into louver 166 in the case 53, and the wind that travels is blown on the radiator 73 from the place ahead of radiator 73.

Fuel hose 92 is such members: it crosses Fuel Tank 38 to right-hand and oblique rear extension from petrolift 41, extend back again, and below Fuel Tank 38, further extend the place ahead to car body, in the side of after the extension, approaching wabble mechanism 21 (see figure 1)s through a u turn and back, and extend back along wabble mechanism 21, again be arranged on air inlet pipe 95 on fuel injection valve 91 be connected.Because fuel hose is the narrow-bore tube that is made of resin, and elastically deformable, so improved it is assembled into the performance that can wave on the three-wheel vehicle, and fuel hose can be followed fluctuating of car body.Number designation 168 refers to the filler cap of Fuel Tank 38.

As reference Fig. 1 and Fig. 3 were described, the invention is characterized in: radiator 73 was disposed in the inside of case 53.

Because radiator 73 is disposed in the inside of case 53, so, by with wind to radiator 73, can utilize cooling water expansion tank to cool off effectively and be positioned at case 53 in-to-in driving engines 76, wherein, the heat of cooling water expansion tank is dispersed in the air by radiator 73, thereby can improve the cooling performance of driving engine 76.And make aftercarriage 18 become compact.In addition and since radiator 73 can be arranged to driving engine 76 near, so can shorten the length of radiator hose 203 (see figure 4)s that radiator 73 and driving engine 76 are connected with each other, and cost-cutting.

In addition, for example case 53 is provided with under the situation of the louver 166 that is positioned at radiator 73 the place aheads, be arranged to longitudinal axis with car body to meeting at right angles by louver 166 with case 53, and make each perforate slightly dried up square of downward bias to, and shutter blade is alignd in vertical direction, just can effectively the quick air-flow of car body bottom be introduced.

In addition, the present invention is based on that swingable three-wheel vehicle 10 finishes, and in this three-wheel vehicle, the aftercarriage 18 that is connected on front vehicle body 14 rear sides is connected into and can waves in the horizontal with respect to front vehicle body 14.The invention is characterized in: a plurality of functional components that are used for driving the driving engine 76 of trailing wheel 16,16 and being arranged on driving engine 76 tops are disposed in aftercarriage 18, the case 53 that is used to hide driving engine 76 and a plurality of functional components has been fixed to driving engine 76 by brace member 71, owing to be provided with strut and brace member 71, make each functional component (that is to say dactylus valve body 96, airfilter 98, catalyst tube 107 and silencer 111) from above be separated out when seeing.

Case 53 can firmly and easily be connected on the brace member 71 that launched machine 76 supporting, and, for example be directly connected to situation on the driving engine 76, can more firmly be connected on the brace member 71 as the airfilter 98 of large-size components than airfilter.As mentioned above, be not only case 53, each functional component also can be connected on the brace member 71, can arrange each functional component effectively, and can make aftercarriage 18 realize densifications, thus can be effective and systemic arrange each functional component.

In addition, the invention is characterized in: separated by brace member 71 as the catalyst tube 107 of the functional component of the exhaust system 52 that constitutes driving engine 76 and silencer 111 and airfilter 98 and throttle body 96 as the functional component of the air system 51 that constitutes driving engine 76.

From above when seeing, catalyst tube 107 and silencer 111 that brace member 71 will be arranged in the exhaust system 52 are separated with comprising the air system 51 of airfilter 98 and throttle body 96.Catalyst tube 107, silencer 111, airfilter 98 and throttle body 96 can be arranged according to function system ground, and insulator 128 (see figure 2)s can easily be connected on the brace member 71, and this insulator is used for preventing the heat transferred air system 51 of exhaust system 52 (for example in the silencer 111) generation.

In addition, as mentioned above, the invention is characterized in: catalyst tube 107 is arranged such that with silencer 111 their longitudinal direction is vertical mutually in birds-eye view, and constituent elements air system 51 and that comprise airfilter 98 and throttle body 96 that has constituted driving engine 76 is disposed in the space 155, and the both sides in this space are made of silencer 111 and catalyst tube 107.

For example by catalyst tube 107 or silencer 111 being arranged to make it vertically along the longitudinal extension of vehicle, and be arranged to make it vertically to extend another person in catalyst tube and the silencer along the Width of car body, can limit the longitudinal length of exhaust system 52, and utilize respectively the catalyst tube 107 that forms by housing 170,190 independently and silencer 111 and guaranteed the total length of exhaust system 52.

In addition, owing to can utilize silencer 111 and catalyst tube 107 to form two sides in quadrangle space,, constituent elements can be arranged in the quadrangle space effectively, and can realize densification so can enlarge the area in this quadrangle space.

In addition, the present invention is based on that the exhaust system 52 that can wave three-wheel vehicle finishes, in this exhaust system, catalyst tube 107 and silencer 111 are encapsulated in independently in the housing 170,190, catalyst tube is wherein containing and is being used for catalyst that the waste gas of discharging from driving engine 76 is purified, silencer is used to absorb exhaust noise, and this invention is characterised in that: catalyst tube 107 is disposed between the pair of right and left trailing wheel 16,16 that is driven by driving engine 76.

Because catalyst tube 107 is disposed between the pair of right and left trailing wheel 16 that is driven by driving engine 76, so the space 155 between two trailing wheels 16,16 about having effectively utilized.

In addition, as reference Fig. 1 and Fig. 3 were described, the present invention was based on that the air intake system structure that can wave three-wheel vehicle 10 finishes, and in this three-wheel vehicle, pair of right and left trailing wheel 16,16 and front vehicle body 14 that driving engine 76 and launched machine 76 drive are waved integratedly.The invention is characterized in: the cylinder part 93 that turns forward is set on driving engine 76, and about the airfilter 98 that constitutes driving engine 76 air systems is disposed between two trailing wheels 16,16, and being positioned at the back of throttle body 96, throttle body is used for the charge flow rate of the fuel system that is provided with fuel injection valve 91 is regulated.

Can effectively utilize the space, for example fuel injection valve 91 can be disposed in the top of the cylinder part 93 that leans forward, and installed and be used for throttle body 96 that the charge flow rate of the fuel system that is provided with fuel injection valve 91 is regulated, with fuel saving, and cleaning exhaust gas.

In addition, by about airfilter 98 is arranged between two trailing wheels 16,16, can increase the volume of airfilter 98, and by airfilter 98 being arranged in the back of throttle body 96, can make airfilter 98 on the Width of car body, be located substantially on the center, and the inflow noise of airfilter 98 is difficult to be diffused into the outside of car body, wherein, on the Width of car body, throttle body 96 is located substantially on the center of driving engine 76.

In addition, at the back of throttle body 96, the space between two trailing wheels 16,16 has obtained the actv. utilization.

Feature of the present invention also is: throttle body 96 and fuel injection valve 91 are disposed in along on the car body line of centers 140 of car body longitudinal extension.

Because throttle body 96 is disposed on the line of centers 140 of car body, so, be disposed at driving engine 76 under the situation at car body center, the length that is used for air inlet pipe 95 that driving engine 76 and throttle body 96 are connected with each other is reduced, and can improve intake efficiency.

In addition, the invention is characterized in: greater than at the length S2 of car body on vertically, and airfilter 98 is arranged to and car body line of centers 140 traversed bies airfilter 98 in the width S on the cross-car 1.

Thereby, about between two trailing wheels 16,16, the width S 1 of airfilter 98 on cross-car can be increased, thereby is easy to guarantee the volume of airfilter 98.In addition, the length S2 of airfilter 98 on car body is vertical has been reduced, and makes airfilter 98 become compact in aftercarriage 18.

Lateral plan among Fig. 4 has represented that according to radiator arrangement of the present invention, it has represented the right side of driving engine 76.

Radiator 73 comprises: go up liquid bath 195; Following liquid bath 196; And be in radiator core body 197 between liquid bath 195 and the following liquid bath 196, and last liquid bath 195 and following liquid bath 196 are connected on the case cover 198, and case cover 198 is such members: it is connected to and the right side of cylinder body 87 and the right side traversed by of change speed gear box 88.Number designation 201 refers to the cooling water expansion tank inflow pipe that is arranged on the liquid bath 195, and label 202 refers to the cooling water expansion tank outflow tube that is arranged on down on the liquid bath 196, and label 203 refers to the radiator hose that the water jacket side of driving engine 76 and inflow pipe 201 are coupled together.

Fig. 5 is the view of being done along the arrow among Fig. 45, it has represented such situation: the right side of liquid bath 195 on the radiator 73 and left side and down liquid bath 196 below be provided with installing component 205, and these installing components 205 are connected on the case cover 198 with bolt 206.Drawing reference numeral 198a refers to and is used for case cover 198 is connected to fitting plane on cylinder body 87 (referring to Fig. 4) and the change speed gear box 88 (referring to Fig. 4), and label 198b refers to and is used for case cover 198 is connected to bolt-inserting hole on cylinder body 87 and the change speed gear box 88.

Lateral plan among Fig. 6 (local for cutaway view) has represented that according to radiator of the present invention and louver this view table shows: as with case 53 member independently, louver 166 is set on the antetheca 53a of case 53, and is positioned at the place ahead of radiator 73.

As for louver 166, a plurality of shutter blades by with the interval that equates basically, be arranged in antetheca 53b along antetheca 53a and go up among the set perforate 53b, each louvered front end 166a all from horizon 210 slightly downward-sloping an angle θ, and all extend along the direction of width over sides of car body on louvered each long limit.

As mentioned above, offset downward slightly from horizon, and each shutter blade is arranged in vertical direction by the sensing that makes each shutter blade 166, just can be such as shown by arrows, the quick air-flow in the car body bottom is introduced effectively.

In this embodiment, as shown in Figure 2, between airfilter 98 and silencer 111, be provided with insulator 128, but, in Fig. 3, insulator is connected on the framework 163 of framework member 118, and insulator also can be set between airfilter 98 and the catalyst tube 107.

Fig. 7 is the cutaway view of being done along the 7-7 line among Fig. 3, and it has expressed first embodiment, and expresses catalyst tube 107 and comprise: inner barrel 171, and it is connected with front exhaust pipe 106; Outer cylinder body 173, it hides the ring week of overlapping inner barrel 171 across space 172; And end coupling member 174,176, they are used for the end of the end of inner barrel 171 and outer cylinder body 173 is linked up.Above-mentioned outer cylinder body 173 and end coupling member the 174, the 176th are used to form the member of shell 170.

Inner barrel 171 comprises: catalyst support section 177, the inside of this part have cellular structure (part of expressing with the crossing net streakline) in Fig. 7, are supporting catalyst by catalyst is adhered on the surface of honeycomb structure; Be connected to preceding body 178 and back body 181 on catalyst support section 177 both sides.

Preceding body 178 is connected with front exhaust pipe 106, and back body 181 is connected with final vacuum pipe 108.Back body 181 is provided with the shell portion 181a of a minor diameter, and is shaped on a plurality of air extractor vent 181b on the surface of minor diameter shell portion 181a.

End coupling member 176 is provided with a plurality of air extractor vent 176a.

Final vacuum pipe 108 is made of double lumen tube, and this double lumen tube comprises pipe 183 and one outer tube 184 in, and interior pipe 183 links to each other with the back body 181 of catalyst tube 107, and 184 of outer tubes are connected with the ring limit of end coupling member 176.Number designation 186 refers to the end pipe that is arranged on the outer tube 184, the exhausting waste gas passage in label 187 refers to and is formed between pipe 183 and the outer tube 184.

Fig. 8 is the cutaway view of making along the 8-8 line among Fig. 2, and it has represented first embodiment.Fig. 8 has represented such situation: by end cap 192 and 193 being connected to the place, two ends of the cylinder part 191 that is made of double lumen tube, and utilize the next door 194,596 will be by shell portion 191, end cap 192 and 193 cingens spaced apart, just the place has formed one first chamber 597 in the middle of silencer 111, and has formed second chamber 598 and the 3rd chamber 199 at the two ends of first chamber 597.Fig. 8 expresses: the end of second communicating pipe 204 is disposed in second chamber 598, and the other end of second communicating pipe 204 is disposed in the 3rd chamber 199, just can realize above-mentioned structure by following design: an end of L type pipe 502 is connected on the interior pipe 183 of final vacuum pipe 108, and final vacuum pipe wherein is connected on the end cap 193; L type pipe 502 is penetrated in the next door 596; The other end of L type pipe 502 is arranged in first chamber 597; L type pipe is connected on the next door 596, so that the end of first communicating pipe 503 is closed; Made for first communicating pipe 503 pass next door 194; The other end of first communicating pipe 503 is arranged in second chamber 198; And make and pass two next doors 194,596 second communicating pipe 204.Fig. 8 has also expressed such structure: by trail pipe 112 is passed end cap 193, the 3rd chamber 199 is in communication with the outside; Fig. 8 also expresses: the end of final vacuum pipe 108 outer tubes 184 is arranged in the 3rd chamber 199.Shell portion 191 and two end caps the 192, the 193rd, the member of formation shell 190.

Shell portion 191 comprises: inner barrel 506, next door 194,596 are connected on this inner barrel 506; End pipe 207, it is connected on the end of inner barrel 206, to connect end cap 192; Outer cylinder body 208, it is connected on the other end of end pipe 207 and inner barrel 506; And support 114, it is connected on the side of outer cylinder body 208.By inner barrel 506 being made for the perforated plate that has a plurality of holes on its surface, and filling glass cotton in the hollow layer 210 that between by inner barrel 506, end pipe 207 and outer cylinder body 208, surrounds, just can utilize described hollow layer 210 to improve the effect that absorbs noise, and almost completely cut off in the silencer 111 heat to the transmission of outer cylinder body 208.

First communicating pipe 503 was such members: be shaped on a plurality of air extractor vent 203a on it, waste gas each air extractor vent 203a that flows through.

Hereinafter will introduce the flow condition of waste gas in above-mentioned catalyst tube 107 and silencer 111.

Fig. 9 A and Fig. 9 B have represented that waste gas is according to the catalyst tube of first embodiment of the invention and the flow behavior in the silencer.

For the catalyst tube 107 shown in Fig. 9 A, the waste gas that comes along arrow A direction among the figure from driving engine one effluent, flow front exhaust pipe 106 is managed 183 (seeing arrow C and D) from catalyst support section 177 (seeing arrow B) in minor diameter shell portion 181a flows to, and flows to exhaust passage 187 (seeing arrow G) from minor diameter shell portion 181a through air extractor vent 181b (seeing arrow E), space 172 and air extractor vent 176a (seeing arrow F).

For the silencer 111 shown in Fig. 9 B, the waste gas that one effluent comes along arrow H from catalyst tube, flow the interior pipe 183 of final vacuum pipe 108 is from L type pipe 502 (seeing arrow J), first chamber 597 (seeing arrow K) of flowing through successively, air extractor vent 203a (seeing arrow M), first communicating pipe 503 (seeing arrow N), second chamber 598 (seeing arrow P), second communicating pipe 204 (seeing arrow Q), the 3rd chamber 199 (seeing arrow R) and trail pipe 112 (seeing arrow S) and flow to the outside of silencer 111.Shown in arrow T, the waste gas that comes from catalyst tube one effluent, flow the exhaust passage 187 of final vacuum pipe 108 also flows to trail pipe 112 (seeing arrow U) from the 3rd chamber 199.

Interior pipe 183 in the final vacuum pipe 108 has played the effect of waste gas first path (main channel), and the effect of waste gas alternate path (other path) has been played in exhaust passage 187.

Lateral plan among Figure 10 (local for cutaway view) has been represented the aftercarriage that waves three-wheel vehicle (second embodiment) according to of the present invention, birds-eye view among Figure 11 has been represented the main portion of waving three-wheel vehicle (second embodiment) according to of the present invention, and Figure 12 is the front elevation that waves the aftercarriage of three-wheel vehicle (second embodiment) according to of the present invention.To refer to identical number designation to the first embodiment identical construction shown in Figure 9 with Fig. 1, and omit detailed description these structures.

Can wave three-wheel vehicle 220 is characterised in that: as shown in figure 10, exhaust system 221 is connected on the downside of cylinder cap 68, and between the airfilter 98 of air system 51 and exhaust system 221, be provided with secondary air delivery system 222, it is used for to exhaust system 221 feeding secondary air, so that CO in the exhaust system 221 and HC are carried out oxidation.

Exhaust system 221 comprises: front exhaust pipe 225, one end are connected to the below of cylinder cap 68 with bolt 104,104 and nut 105,105, and this freeing pipe extends upward basically along the left side of cylinder cap 68; First catalyst tube 226, it is connected on the other end of front exhaust pipe 225, and extends upward substantially; Intermediate exhaust pipe 227, it is connected on the top part of first catalyst tube 226, and upwards extends back substantially again; Second catalyst tube 228, it is connected on the rear end of intermediate exhaust pipe 227, and extends back; Final vacuum pipe 229, it is connected on the rear portion of second catalyst tube 228, and extends back, and then to oblique rear extension down; Silencer 111, its rear end with final vacuum pipe 229 links to each other; And trail pipe 112.

Containing reducing catalyst in first catalyst tube 226, it utilizes reducing catalyst that NOx is reduced.Containing oxide catalyst in second catalyst tube 228, it utilizes the oxidation of oxide catalyst acceleration to CO and HC.

Figure 11 expresses: first catalyst tube 226, intermediate exhaust pipe 227, second catalyst tube 228 and final vacuum pipe 229 by being aligned be arranged in vehicle vertically on, first catalyst tube 226 is disposed in the left side of cylinder cap 68, and second catalyst tube 228 is disposed in the left side of throttle body 96.

Secondary air delivery system 222 comprises: first flexible pipe 232, one end are connected on the purification chamber 147 of airfilter 98; Electromagnetic valve 233, its other end with first flexible pipe 232 links to each other; Second flexible pipe 234, the one end links to each other with electromagnetic valve 233; As the leaf valve 236 of non-return valve, it is connected on the other end of second flexible pipe 234; And metal tube 237, the one end is connected on the leaf valve 236, and the other end is connected on the intermediate exhaust pipe 227.

If electromagnetic valve 233 is opened according to the signal of control unit of engine (not shown), when being deflated pulse transition in the inside of intermediate exhaust pipe 237 and being negative pressure, leaf valve 236 is also opened, because air is sucked to the negative pressure position, the air in the purification chamber 147 of airfilter 98 is transported in the exhaust system 221 through secondary air delivery system 222.

Figure 12 expresses: front exhaust pipe 225 becomes U-shaped ground to extend to first catalyst tube 226 that is positioned at cylinder cap 68 sides side from the below of cylinder cap 68 basically, the end of second flexible pipe 234 that transversely extends at driving engine 76 leaf valve 236 other with being located substantially on front exhaust pipe 225 sides links to each other, and metal tube 237 is connected on the inner surface of intermediate exhaust pipe 227 from leaf valve 236, thereby has formed a u turn when making metal tube below through intermediate exhaust pipe 227.

According to second embodiment, utilize comparatively cheap catalyst, obtained to be provided with compactness and the small size vehicle of actv. exhaust emission control device, in the emission control system therein, the volume of catalyst container has been reduced.

As shown in Figure 7 and Figure 8, the present invention is based on that swingable three-wheel vehicle 52 finishes, in this three-wheel vehicle, containing the catalyst tube 107 that is used for catalyst that driving engine 76 waste gas are purified, and have a plurality of silencers 111 that are used to absorb the chamber of exhaust noise and be encapsulated in independently housing 170, in 190, this invention is characterised in that: be provided with the path that many waste gas that are used for discharging from catalyst tube 107 are incorporated into silencer 111, and the main channel in these paths (exhaust passage of pipe in 183 promptly) leads to first chamber 197 that is positioned at upstream side in the silencer 111, and other path (being exhaust passage 187) leads to the 3rd chamber 199 in the downstream that is positioned at upstream side first chamber 197 of silencer 111.

The waste gas that utilization is used for discharging from catalyst tube 107 is incorporated into many paths of silencer 111, enlarged the cross-sectional area of exhaust steam passage, and can reduce the resistance to flow of waste gas, and and be easy to realize required output characteristic, guarantee the performance of purifying exhaust air and absorbed the performance of noise.

Feature of the present invention also is: the final vacuum pipe 108 as the adapting pipe that is used to connect catalyst tube 107 and silencer 111 has been made into multi-lumen tube, and a plurality of passages in the multi-lumen tube have formed many paths.

Because final vacuum pipe 108 is made into multi-lumen tube, thus many way set of waste gas can be got up, and can connect catalyst tube 107 and silencer 111 securely.

In the present invention, catalyst container is disposed in the top of driving engine, but the present invention is not limited to this, and catalyst container also can be disposed on the position of front exhaust pipe 106, as shown in Figure 2, front exhaust pipe 106 extends upward from the below of cylinder cap 68, that is to say, catalyst container also can be disposed in by the side of driving engine 76, more specifically, be to be positioned at by the side of cylinder cap 68.Thereby catalyst container is arranged to can improve the temperature of catalyst like this near cylinder cap 68, thus but the reaction of accelerator activator.

Cutaway view among Figure 13 A and Figure 13 B has been represented according to airfilter of the present invention.Figure 13 A is first cutaway view, and it has expressed first parts of vessels and conduit chamber (second parts of vessels), and Figure 13 B is second cutaway view (having expressed main portion), and it has represented conduit chamber and the 3rd parts of vessels.

As shown in FIG. 13A, airfilter 98 comprises filter case 601, is arranged on air-filtering element 602 and bleeder hose 603 in the filter case 601, and bleeder hose 603 wherein is connected on the bottom of case of air cleaner 601.

Case of air cleaner 601 comprises shell main body 605 and is hiding the airfilter cap 606 of shell main body 605, by air-filtering element 602 being assembled to shell main body 605 and the part place that airfilter cap 606 assembles, just finished the assembling of housing 601.

Shell main body 605 comprises: clean side 608, and it has formed purification chamber 147; The cavity 211 of vertical lengthwise conduit chamber, it has formed conduit chamber 146; Offlet 212, it is set at the lower end of catheter lumen chamber body 211; And flange 213, its ring that is set at the upper end is on week, and the cavity 211 of clean side 608 and conduit chamber is separated by next door 144, and bleeder hose 603 is connected to offlet 212 with hose clamp 215, and flange 213 is connected to frame member 118 (see figure 3)s.Drawing reference numeral 213a refers to bolt-inserting hole, and it is used to insert airfilter 98 is connected to bolt 142 (see figure 3)s on the frame member 118.

Airfilter cap 606 is provided with: first parts of vessels 218, and it is formed in the top vertical extent of upper wall 217 and catheter lumen chamber body 211; And dirty side 621, it has formed purification chamber 147.As mentioned above, by utilizing the upper end closed of upper wall 217 with catheter lumen chamber body 211, just can form conduit chamber 146, outside air is inhaled in the conduit chamber 146 through first parts of vessels 218.

Conduit chamber 146 is positioned at from the downstream of first parts of vessels, 218 suction airs.Conduit chamber 146 has played the effect of second parts of vessels.Number designation 218a refers to the upper opening part, and its opening is on the top of first parts of vessels 218, and label 218b refers to the lower openings part, and it leads to the conduit chamber 146 of first parts of vessels 218.

Air-filtering element 602 comprises: framework 224, and it is fixed on the case of air cleaner 601; And filter 625 (being equal to the part of representing with cross line), it is connected on the framework 224, and it will purify chamber 147 and be separated into dirty side 621 and clean side 608.

Shown in Figure 13 B, connect airfilter cap 606 by following design: with conduit chamber 146 corresponding upper wall 217 parts on have first through hole 627; With dirty side 621 corresponding upper wall 217 parts on have second through hole 628; And upper conduit 151 is assembled in first through hole 627 and second through hole 628.Conduit chamber 146 and dirty side 621 are interconnected by upper conduit 151.Label 231a refers to the first perforate part of upper conduit 151, and its opening conductive pipe chamber 146, label 231b refer to the second perforate part of upper conduit 151, and it leads to dirty side 621.

First parts of vessels 218, conduit chamber 146 and upper conduit 151 shown in Figure 13 A and the 13B all are the constituent elementss of airfilter 98 admission ports 235.

Shown in Figure 13 A and 13B, the present invention is based on that the inlet channel structure of airfilter 98 finishes, this airfilter 98 has constituted the air system 51 of driving engine 76, driving engine wherein is set on waved three-wheel vehicle 10 (see figure 1)s as dilly, the invention is characterized in: first parts of vessels 218 leads to the top, and extend downwards, conduit chamber 146 as second parts of vessels is connected with first parts of vessels 218, and extend downwards, lead to the upper end of conduit chamber 146 as the first opening 151a on upper conduit 151 1 ends of the 3rd parts of vessels, its other end is communicated with the dirty side 621 of airfilter 98, these parts of vessels are set to admission port 235 places of airfilter 98, upper conduit 151 extends above conduit chamber 146, and leads to the top of airfilter 98.

Utilize conduit chamber 146 that extends and the upper conduit 151 that is communicated with the upper end of conduit chamber 146 downwards, dust (or water droplet) 240 (seeing Figure 14 A) can more effectively be got rid of from suction air.Can reduce the space that the inlet channel structure occupies in the horizontal direction, thereby can make airfilter 98 become compact, and being easy to guarantee the better purifying space of airfilter 98-promptly purify the volume of chamber 147, inlet channel is wherein formed by first parts of vessels 218, conduit chamber 146 and upper conduit 151.

Shown in Fig. 3,13A and 13B, the invention is characterized in: at least one part in first parts of vessels 218, conduit chamber 146 and the upper conduit 151 (being first parts of vessels 218 and conduit chamber 146 in this embodiment) is set at the corner of case of air cleaner 601, and its cross-sectional plane is made into triangle.

Since as described above cross-sectional plane is made triangle, thus can effectively utilize the space at turning, and make airfilter 98 become compact.

Below will be to mobile being described of air inlet in above-mentioned airfilter 98.

Figure 14 A and 14B have represented the flow behavior of air inlet in airfilter according to the present invention.

Shown in Figure 14 A, outside air is drawn into downwards the conduit chamber 146 along arrow A by the last perforate part 218a from first parts of vessels 218.At this moment, contained dust (or water droplet) 240 drops to the bottom of conduit chamber 146 in the outside air, and from bleeder hose 603, be discharged to the outside through offlet 212 along arrow B.At 203a place, the lower end of bleeder hose 603, be shaped on a slit.This slit is closed under normal conditions, and it has played the effect of non-return valve, preventing extraneous inrush of air to inner, is malleations as the inside of airfilter 98, and dust (or water droplet) is discharged from.

As shown in Figure 14B, air inlet is upwards flowed in conduit chamber 146, dust (or water droplet) 240 (seeing Figure 14 A) is removed further, as shown by arrow C, air inlet flow in the upper conduit 151, and 151 arrives dirty side 621 along arrow D direction from upper conduit, as shown by arrow E, flow through the subsequently filter 625 of air-filtering element 602 of air inlet, and air inlet arrives clean side 608.

The air of clean side 608 flows through connection pipe 97 along arrow direction among Figure 14 A from prolongation 152, and arrives the combustion chamber of driving engine through throttle body.

Shown in Figure 14 A and 14B, can utilize following design that dust contained in the air inlet (or moisture) 240 is removed effectively: vertically to arrange first parts of vessels 218 and as the conduit chamber 146 of second parts of vessels; Outside air is drawn into conduit chamber 146 downwards from first parts of vessels 218; With the first perforate 231a opening of upper conduit 151 upper end at conduit chamber 146; And it is upwards mobile to utilize first parts of vessels 218, conduit chamber 146 and upper conduit 151 that flowing of air inlet transferred to from flowing downward.

In the present invention, one of at least cross-sectional plane is made into triangle in first parts of vessels, second parts of vessels and the 3rd parts of vessels, and still, the present invention is not limited to this, and cross-sectional plane can also be circular, square or their combined shaped.

But the present invention can be applied to dilly, motor bike rolling vehicle and can wave three-wheel vehicle.

Claims (23)

1. one kind can be waved three-wheel vehicle, can wave in the three-wheel vehicle at this, aftercarriage is coupled on the rear side of front vehicle body, so that aftercarriage can be swung in the horizontal with respect to front vehicle body, aftercarriage is being hidden by all-in-one-piece case, the case ladle cover driving engine, by engine-driven rear wheel part and engine's exhaust system, it is characterized in that:

In case inside, the cylinder part of driving engine is arranged to turn forward;

In exhaust system, be provided with the catalyst container and the silencer champer that are used for purifying exhaust air;

Be provided with fuel injection valve and the throttle body that is used for fuel is transported to driving engine in the inside of case.

2. the three-wheel vehicle that waves according to claim 1 is characterized in that: be used for the radiator that driving engine cools off is disposed in case inside.

3. the three-wheel vehicle that waves according to claim 1 is characterized in that: also possess airfilter; Case is fixed on the driving engine by strut; Catalyst container and silencer champer are separated by strut and airfilter and throttle body.

4. the three-wheel vehicle that waves according to claim 1, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, catalyst container is disposed in the top of driving engine, silencer champer is disposed in the back of driving engine, and is positioned at the below of catalyst container.

5. the three-wheel vehicle that waves according to claim 1, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, wherein, catalyst container is arranged such that with silencer champer their longitudinally is vertical in birds-eye view, and comprise that constituent elements airfilter and throttle body, that constituted engine aspirating system is disposed in the space, silencer champer and catalyst container have constituted two sides in this space.

6. the three-wheel vehicle that waves according to claim 1, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, be provided with many paths that are used for the waste gas of discharging from catalyst container is guided into silencer champer, main channel in these paths leads to a chamber that is arranged in the upstream side of silencer champer, and other path leads to the chamber in the downstream that is positioned at the upstream side chamber of silencer champer.

7. the three-wheel vehicle that waves according to claim 6 is characterized in that: what be used to connect catalyst container and silencer champer is made into multi-lumen tube communicating pipe, utilizes many passages in the multi-lumen tube to form described many paths.

8. the three-wheel vehicle that waves according to claim 1, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, wherein, catalyst container is set at by between engine-driven pair of right and left trailing wheel, and be set at the inside of whole case, about case is wherein hiding two trailing wheels above.

9. the three-wheel vehicle that waves according to claim 3, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, catalyst container is disposed in the top of driving engine, silencer champer is disposed in the back of driving engine, and is positioned at the below of catalyst container.

10. the three-wheel vehicle that waves according to claim 3, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, wherein, catalyst container is arranged such that with silencer champer their longitudinally is vertical in birds-eye view, and comprise that constituent elements airfilter and throttle body, that constituted engine aspirating system is disposed in the space, silencer champer and catalyst container have constituted two sides in this space.

11. the three-wheel vehicle that waves according to claim 3, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, be provided with many paths that are used for the waste gas of discharging from catalyst container is guided into silencer champer, main channel in these paths leads to a chamber that is arranged in the upstream side of silencer champer, and other path leads to the chamber in the downstream that is positioned at the upstream side chamber of silencer champer.

12. the three-wheel vehicle that waves according to claim 11 is characterized in that: what be used to connect catalyst container and silencer champer is made into multi-lumen tube communicating pipe, and utilizes many passages in the multi-lumen tube to form described many paths.

13. the three-wheel vehicle that waves according to claim 3, it is characterized in that: catalyst container and silencer champer are inclusive in the housing separate in the exhaust system, wherein, catalyst container is set at by between engine-driven pair of right and left trailing wheel, and be set at the inside of whole case, about case is wherein hiding two trailing wheels above.

14. the three-wheel vehicle that waves according to claim 1, it is characterized in that: this three-wheel vehicle is included as the air intake system structure that driving engine is provided with, wherein, the airfilter that constitutes air intake system structure about between two trailing wheels, and be positioned at the back of the throttle body that is used for fuel metering supply system charge flow rate, be provided with fuel injection valve in the fuel system wherein.

15. the three-wheel vehicle that waves according to claim 14 is characterized in that: throttle body and fuel injection valve are disposed in along on the car body line of centers of car body longitudinal extension.

16. according to claim 14 or the 15 described three-wheel vehicles that wave, it is characterized in that: airfilter is designed to be greater than in the length of car body on vertically at the width on the cross-car, and airfilter is arranged to the line of centers traversed by with car body.

17. the three-wheel vehicle that waves according to claim 1, it is characterized in that: this three-wheel vehicle is included as the air system that driving engine is provided with, and air system comprises the inlet channel structure of airfilter, wherein, the admission port of airfilter is provided with: lead to first parts of vessels of top, it extends downwards; Second parts of vessels that links to each other with first parts of vessels, it extends downwards; And the 3rd parts of vessels, opening on the one end is communicated with the upper end of second parts of vessels, and the housing of the other end of the 3rd parts of vessels and airfilter links, wherein, the 3rd parts of vessels extends upward from second parts of vessels, and leads to the top part of airfilter.

18. the three-wheel vehicle that waves according to claim 17, it is characterized in that: at least one parts in first parts of vessels, second parts of vessels and the 3rd parts of vessels are set on the turning of case of air cleaner, and cross-sectional plane is made into triangle.

19. the three-wheel vehicle that waves according to claim 3, it is characterized in that: this three-wheel vehicle is included as the air intake system structure that driving engine is provided with, wherein, the airfilter that constitutes air intake system structure about between two trailing wheels, and be positioned at the back of the throttle body that is used for fuel metering supply system charge flow rate, be provided with fuel injection valve in the fuel system wherein.

20. the three-wheel vehicle that waves according to claim 19 is characterized in that: throttle body and fuel injection valve are disposed in along on the car body line of centers of car body longitudinal extension.

21. according to claim 19 or the 20 described three-wheel vehicles that wave, it is characterized in that: airfilter is designed to be greater than in the length of car body on vertically at the width on the cross-car, and airfilter is arranged to the line of centers traversed by with car body.

22. the three-wheel vehicle that waves according to claim 3, it is characterized in that: three-wheel vehicle is included as the air system that driving engine is provided with, and air system comprises the inlet channel structure of airfilter, wherein, the admission port of airfilter is provided with: lead to first parts of vessels of top, it extends downwards; Second parts of vessels that links to each other with first parts of vessels, it extends downwards; And the 3rd parts of vessels, opening on the one end is communicated with the upper end of second parts of vessels, and the housing of the other end of the 3rd parts of vessels and airfilter links, wherein, the 3rd parts of vessels extends upward from second parts of vessels, and leads to the top part of airfilter.

23. the three-wheel vehicle that waves according to claim 22, it is characterized in that: at least one parts in first parts of vessels, second parts of vessels and the 3rd parts of vessels are set to the corner of case of air cleaner, and cross-sectional plane is made into triangle.

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