CN101391632B - Exhaust apparatus of motorcycle - Google Patents

Exhaust apparatus of motorcycle Download PDF

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Publication number
CN101391632B
CN101391632B CN2008101490750A CN200810149075A CN101391632B CN 101391632 B CN101391632 B CN 101391632B CN 2008101490750 A CN2008101490750 A CN 2008101490750A CN 200810149075 A CN200810149075 A CN 200810149075A CN 101391632 B CN101391632 B CN 101391632B
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motor bike
crankcase
exhaust
freeing pipe
exhaust sensor
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CN101391632A (en
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秋田佳克
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Suzuki Motor Corp
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Suzuki Motor Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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Abstract

The invention provides an exhausting device for a motorcycle. A vehicle body framework comprises a main frame. An engine is disposed below the main frame in the direction of the motorcycle height. The engine comprises a crankcase suspended downwards from the main frame and a cylinder cover extending forwards along the longitudinal direction of the motorcycle from the crankcase. A vehicle assembly is disposed behind the crankcase and opposite to the crankcase along the longitudinal direction of the motorcycle. An exhaust pipe is attached on the cylinder cover and extends backwards along the longitudinal direction of the motorcycle from the lower surface of the cylinder cover. The exhaust pipe is positioned at one side deviated from the crankcase in the motorcycle width direction. A silencer is connected at the back end of the exhaust pipe. A exhaust sensor is attached on the exhaust pipe and between the vehicle assembly and the crankcase.

Description

The exhaust gear of motor bike
The application requires to enjoy the preceence of the Japanese patent application submitted to September 20 in 2007 2007-243330 number, and its full content is attached among the present invention by reference.
Background technology
The present invention relates to a kind of exhaust gear of motor bike, this exhaust gear is equipped with the exhaust sensor that is attached on the freeing pipe.
Adopt fuel injection system supply air-fuel mixture to give in the motor bike of driving engine; The concentration of oxygen can detect through exhaust sensor in the exhaust, produces the air-fuel mixture of desirable air-fuel mixture ratio (A/F) through the controlled reset of carrying out fuel injection amount in the fuel injector based on oxygen concentration.
Here, to the installation site of exhaust sensor, up to the present various schemes are arranged.For example, in patent document 1, exhaust sensor is installed in the pars intermedia of freeing pipe.Freeing pipe is divided into forebody and latter half of, and exhaust sensor is installed in the butt flange portion that freeing pipe separates the position along the motor bike Width is outward-dipping, and the separable freeing pipe that is arranged on of this butt flange portion separates on the position.
In addition, in patent document 2, in low bone (under-bone) type motor bike, the freeing pipe sensor is installed in the upper side wall of freeing pipe, and this installation site is positioned at the front of the right salient of crankcase, the outside of cylinder band right lateral surface.
Patent document 1: japanese patent publication 2007-085235A number
Patent document 2: japanese patent publication 2007-335467A number
Here, in low bone (under-bone) type motor bike, toe board, back brake pedal is arranged in a side of crankcase with similar thing, so can not guarantee the space at crankcase one side arranging exhaust air sensor.In patent document 1; Even exhaust sensor has been avoided the toe board with the side that is installed in crankcase; Back brake pedal is interfered and is installed with similar thing, still has the possibility that contacts at the bottom of the right shoe of exhaust sensor and the chaufeur of operation back brake pedal.
In addition, in motor bike, when freeing pipe when cylinder band one side general curved meets at right angles, just increased resistance of exhaust, just can not adopt the exhaust route described in the patent document 2 thus.In addition, be positioned at cylinder band one side such as the vehicle body cover of legging cover, outstanding significantly and when being arranged in the outside of motor bike Width with respect to the cylinder band side when freeing pipe thus, vehicle body cover width has increased and then air resistance has increased.Thereby patent document 2 disclosed technology are not preferred.
Thereby in the freeing pipe arrangement structure of reality, freeing pipe is in tilted layout, and on the motor bike Width, outwards protrudes, and stretches to rear side from its front side and stretches.Yet,, just can not guarantee that space specified has enough spatial destribution exhaust sensors in patent document 2 if exhaust sensor is arranged in such a way.In addition, in the structure that patent document 2 proposes, exhaust sensor is arranged in the position near driving engine, and this shortcoming of user's maintainability difference just occurred.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of exhaust gear of motor bike, it can be protected exhaust sensor effectively and rise through the temperature that suppresses exhaust sensor and can improve the accuracy of detection of exhaust sensor.
An aspect according to exemplary embodiment of the present invention; The invention provides a kind of exhaust gear that motor bike is set; This exhaust gear comprises: body shell; This body shell has main frame and is installed in the trunnion bracket on the said main frame, can pivotally support the top that is pivotally mounted in trunnion bracket of the front end of rocking arm; Driving engine below the short transverse of motor bike is arranged on main frame, this driving engine comprise from the main frame crankcase suspended downwards with at the cylinder cover that vertically stretches to the front side from crankcase of motor bike; With motor bike vertically on be arranged on the crankcase back so that the body component relative with crankcase, exhaust gear comprises: be attached on the cylinder cover and motor bike vertically on freeing pipe at motor bike Width upper offset in the mode of crankcase one side from the freeing pipe of cylinder cover lower surface to the rear side extension; Be connected to the noise silencer of freeing pipe rear end; And be attached on the freeing pipe and be arranged on body component and crankcase between exhaust sensor; The exhaust gear of this motor bike is characterised in that; On the Width of said motor bike; Said exhaust sensor slopes inwardly with respect to the short transverse of motor bike, sees from the side of said motor bike, and the top of said exhaust sensor is between below the said pivot and back of said crankcase and said trunnion bracket.
In this structure, exhaust sensor is attached on the freeing pipe between crankcase and the body component, motor bike vertically on, body component is arranged on the crankcase back so that relative with crankcase.Therefore exhaust sensor neither stretches out also to a side with respect to freeing pipe and does not upwards stretch out, thereby protects exhaust sensor avoid flying up handstone or splash the damage of water effectively.In addition, because it needn't be for the protection exhaust sensor be provided with fender, the air cooling that exhaust sensor is moved effectively can suppress the temperature build-up of exhaust sensor thus, thereby can guarantee the high measurement accuracy of exhaust sensor.
Utilize this structure, exhaust sensor can be arranged away from the freeing pipe as thermal source.Simultaneously, even freeing pipe also can be held outside the Width of motor bike is exposed to.Therefore the temperature build-up of freeing pipe and exhaust sensor can be suppressed.In addition, because freeing pipe is away from the chaufeur layout, so freeing pipe is positioned at the below of the crankcase of driving engine.Yet; Because exhaust sensor with respect to the short transverse of motor bike the intilted mode of the Width of motor bike arrange and the top of exhaust sensor between crankcase salient and the body component relative with salient, can more effectively be protected so exhaust sensor can be placed thus exhaust sensor near the salient of crankcase.
Exhaust sensor can be arranged on support kick lever and the Width of motor bike from the salient of crankcase outwardly directed pivot back and below; And the top of exhaust sensor can tilt in case be provided with exhaust sensor top the position not can with the action radius overlaid of kick lever in rotational plane.
In this structure, exhaust sensor be arranged in support kick lever and the Width of motor bike from the salient of crankcase outwardly directed pivot back (motor bike vertically on) and below (on the short transverse at motor bike).And the upper angled of exhaust sensor can be not overlapping with the action radius of kick lever in rotational plane so that the position on the top of exhaust sensor is set.Therefore, even when the operation kick lever, thereby exhaust sensor can not interfere the protection exhaust sensor to avoid being damaged with kick lever yet.In addition, the sensor connecting element that is connected exhaust sensor top can more inwardly be arranged than kick lever at the Width of motor bike.Therefore thereby the sensor connecting element can not interfere protection sensor connecting element to avoid being damaged with kick lever.
The salient of crankcase comprises clutch cover back plate.
In this structure, the clutch cover back plate that has protruded the length of whole crankcase to a side has in the vertical constituted the salient of crankcase.Therefore because exhaust sensor is arranged in the clutch cover back plate back of longitudinal tensile strain, so can stop from the sudden small stone of front-wheel with splash water and contact with exhaust sensor, thereby protected sensor effectively.
Body component comprises noise silencer is installed to the silencer support on the body shell.
In this structure, exhaust sensor be arranged in the crankcase salient and motor bike vertically between the silencer support relative with salient.Therefore, exhaust sensor is attached on the freeing pipe and has stoped exhaust sensor moving with respect to crankcase salient and silencer support.Thereby exhaust sensor can not be interfered body component through the vibration of driving engine and the bump of trailing wheel, thereby has protected exhaust sensor to avoid damaging.
Freeing pipe is divided into two parts through connecting portion; In the upper reaches one side of said two the part connecting portions of next-door neighbour, exhaust sensor is attached on the freeing pipe.
Utilize this structure, when carrying out the very heavy noise silencer installation or removal operation of weight, thereby exhaust sensor can not touch motorcycle body or other engine side assembly has protected exhaust sensor to avoid being damaged.Equally, thus the sensor connecting element that connects exhaust sensor can not exceedingly be drawn the disengaging that prevents the sensor connecting element.
The sensor connecting element can stretch from the top of exhaust sensor; And the pars intermedia of sensor connecting element can clip on the body shell.
Utilize this structure, the vibration of the large amplitude of sensor connecting element can be prevented from.Thereby can prevent generation such as the error detection fault of the disengaging of sensor connecting element or exhaust sensor.
Another aspect according to exemplary embodiments of the present invention; The invention provides a kind of motor bike; This motor bike comprises body shell; This body shell has main frame and is installed in the trunnion bracket on the said main frame, can pivotally support the top that is pivotally mounted in trunnion bracket of the front end of rocking arm; Driving engine below the short transverse of motor bike is arranged on main frame, this driving engine comprise from the main frame crankcase suspended downwards with at the cylinder cover that vertically stretches to the front side from crankcase of motor bike; Vertically be arranged on crankcase back so that the body component relative at motor bike with crankcase; Be attached on the cylinder cover and motor bike vertically on the freeing pipe that extends to rear side from the cylinder cover lower surface in the mode of crankcase one side at motor bike Width upper offset with freeing pipe; Be connected the noise silencer of freeing pipe rear end; And be attached on the freeing pipe and be arranged on body component and crankcase between exhaust sensor; The exhaust gear of this motor bike is characterised in that; On the Width of said motor bike; Said exhaust sensor slopes inwardly with respect to the short transverse of motor bike, sees from the side of said motor bike, and the top of said exhaust sensor is between below the said pivot and back of said crankcase and said trunnion bracket.
Description of drawings
Through present invention will be described in detail with reference to the accompanying exemplary embodiment, above-mentioned and other aspects of the present invention will become more obvious, wherein:
Fig. 1 is the right side view according to the motor bike of exemplary embodiment equipment exhaust gear of the present invention;
Fig. 2 shows the motor bike right side view that exhaust gear is housed according to exemplary embodiment;
Fig. 3 is the birds-eye view that the motor bike of exhaust gear is housed according to exemplary embodiment;
Fig. 4 is the cutaway view along Fig. 2 center line A-A.
The specific embodiment
Below, illustrate and describe an exemplary embodiment of the present invention.
Motor bike 1 shown in Fig. 1 is the motor bike of a kind of low bone (under-bone) type.As shown in Figures 2 and 3, the steering shaft that does not show in the accompanying drawing is embedded in the head pipe 2 that is installed in the vehicle body front upper part.In addition, as shown in Figure 1, handle 3 is installed in the end of going up of steering shaft, and front fork 4 is connected to the lower end of steering shaft, and front-wheel 5 is supported on the lower end of front fork rotationally and pivotally.
In addition, as shown in Figures 2 and 3, the main frame 6 that constitutes a body shell part is managed the rear side that 2 directions under oblique are stretched to vehicle body from the head, and a pair of left and right side frame 7 is from the centre portion bifurcated of main frame 6.To the vehicle body rear side, Fuel Tank 8 is supported on (see figure 1) on the position of raising with seat 9 to bogie side frame 7 oblique risings for this.In addition, as shown in Figure 2, a storage box 10 is installed in the front of Fuel Tank.
In addition, as shown in Figure 2, the driving engine 11 that constitutes drive source is installed in the below of main frame 6, and the crankcase 12 of driving engine 11 is suspended on the main frame 6 through engine bed.In addition, in driving engine 11, cylinder reaches the front side of vehicle body from crankcase 12, and cylinder cover 15 is installed in the front portion of cylinder.Induction pipe 16 is connected the top of cylinder cover 15, and the Fuel Injection Device 17 (eductor) and the valve body 18 of integrated piston pump are installed on the induction pipe 16.This outer valve 18 is connected behind the bottom of the air cleaner 19 on the bottom that is installed in main frame 6 leading sections on the surface.
In addition, the delivery hose of stretching from Fuel Tank 8 20 is connected on the Fuel Injection Device 17, and the loop flexible pipe 21 that stretches out from Fuel Injection Device is connected on the Fuel Tank 8.Here, as shown in Figure 3, a fuel filter 22 is installed in the middle part of delivery hose 20, and the bypass flexible pipe of stretching from fuel filter 22 23 is connected the middle part of loop flexible pipe 21, and therefore, bypass flexible pipe 23 is connected on the Fuel Tank 8.Although the bubble that in Fuel Injection Device 17, produces is through turning back to Fuel Tank 8 in the loop flexible pipe 21; But here; Do not have the fuel of bubble to flow to fuel filter 22, walk around Fuel Tank and be transported to Fuel Injection Device 17 once more through the bypass flexible pipe 23 that is connected loop flexible pipe 21 middle parts.
On the other hand, freeing pipe 24 is connected the bottom of cylinder cover 15.Freeing pipe 24 stretches downwards from cylinder cover 15, bends towards the rear side of vehicle body gradually.After this, freeing pipe 24 stretches to the rear side of vehicle body from the bottom of crankcase 12 and is biased at freeing pipe 24 under the state on right side of vehicle body, and noise silencer 25 is connected the rearward end of freeing pipe 24.Here, as shown in Figure 2, under noise silencer 25 state motionless with respect to driving engine, noise silencer 25 is installed on the vehicle body through a silencer support 26 of forming body component.Noise silencer 25 can move with respect to vehicle body with driving engine 11 a little.
Here, as shown in Figure 3, the generating hood 27 that constitutes lug boss and clutch cover back plate 28 be installed in respectively crankcase 12 on the driving engine 11 about end.Here, although do not show among the figure, be installed in the terminal automatic centrifugal clutch of bent axle and be placed in clutch cover back plate 28 in-to-ins front portion, the clutch with multiple laminated disc that is used for gear changing is placed in clutch cover back plate 28 in-to-in rear portions.Thereby on the Width of motor bike 1, clutch cover back plate 28 has outwards protruded the whole longitudinal size of crankcase 12.
At the rear side of crankcase 12, a trunnion bracket 29 shown in Figure 4 is installed on the main frame 6, and pivot 30 and transverse member 31 are installed in the top and the bottom of trunnion bracket 29 with the mode that stretches.In addition, silencer support 26 usefulness bolts 32,33 are installed in the right part (left part among Fig. 4) of pivoting lever 30 and transverse member 31.
In addition, as shown in Figure 2, on the short transverse of motor bike 1, be supported on the rear end that trailing wheel 35 on the pivot 30 and shown in Fig. 1 is supported on rocking arm 34 rotationally the front end rotor of rocking arm 34.In addition, the rear end of rocking arm 34 and trailing wheel 35 are suspended on the vehicle body through posterior bumper 36.Here, although do not show not in the accompanying drawings, annular drive chain is wrapped between the drive sprocket and driven sprocket that is installed on the hind axle that is installed on driving engine 11 output shafts.The rotation of the output shaft of driving engine 11 is sent on the trailing wheel 35 through sprocket wheel and chain drive-belt, thereby trailing wheel is driven the permission motorcycle driving rotationally.In addition, as shown in Figure 1, the front portion of motor bike 1 is covered with legging cover 37, and the rear portion of motor bike 1 is covered with side cover 38.
As shown in Figure 2, on the right side of crankcase 12, to overhanging, the kick lever 40 that is used for engine on 11 is installed in pivot 39 to pivot 39 from clutch cover back plate 28.As shown in Figure 4; Kick lever 40 is installed in the outside of silencer support 26 along the Width of motor bike 1; As shown in Figure 2, near a pair of left and right sides stretcher 41 that is used to place the chaufeur pin and be arranged in the kick lever 40 through the back brake pedal 42 that the leg of chaufeur is stepped on the brake of operation back.
In this exemplary embodiment, as shown in Figures 2 and 3, exhaust sensor 43 is installed on the freeing pipe 24 between crankcase 12 and the silencer support 26.Silencer support 26 along the back that vertically is arranged on crankcase of motor bike 1 with relative with crankcase 12.In other words, see that from side silencer support 26 faces with relative mode and crankcase 12.In more detail; As shown in Figure 4, on the Width of motor bike 1, exhaust sensor 43 is to be installed on the freeing pipe 24 with respect to the intilted mode of vertical line (short transverse of motor bike 1 just); And exhaust sensor 43 tops are between clutch cover back plate 28 and silencer support 26, see that from side silencer support 26 faces with relative mode and clutch cover back plate 28.
In addition; As shown in Figure 2; Exhaust sensor 43 be arranged in the pivot 39 of kick lever 40 the rear (motor bike 1 vertically) and below (in the short transverse of motor bike 1); And the top of upper angled to the exhaust sensor 43 of exhaust sensor 43 not can with the state of the action radius position overlapped (see figure 4) of kick lever 40 in rotational plane under, exhaust sensor 43 is installed on the freeing pipe 24.Here, in this exemplary embodiment, as shown in Figures 2 and 3, freeing pipe 24 vertically is being divided into two parts, and by the upstream side of the connecting portion 24a of portions, exhaust sensor 43 is installed on the freeing pipe 24 at 24 liang of freeing pipes of next-door neighbour.Thereby exhaust sensor 43 is arranged near the connecting portion 24a.The length direction pars intermedia of sensor connecting element 44 (see figure 4)s that stretch from exhaust sensor 43 tops in addition, is installed on the trunnion bracket 29.
As stated; In this exemplary embodiment; Above freeing pipe 24; Crankcase 12 and silencer support 26 be along the vertical parallel layout of vehicle body, and exhaust sensor 43 is arranged between crankcase 12 and the silencer support 26, sees that from side silencer support 26 faces with relative mode and crankcase 12.Therefore, thus exhaust sensor 43 does not neither upwards stretch out to side with respect to freeing pipe 24 yet protects exhaust sensor 43 to avoid slungshot and the damage that dabbles effectively.Therefore, be used for protecting the fender of exhaust sensor 43 optional, thereby exhaust sensor 43 only expose to a side.Therefore, exhaust sensor 43 cools off through the wind that moves effectively, thereby the temperature build-up of exhaust sensor 43 can be suppressed thus exhaust sensor 43 and can guarantee high measurement accuracy.
In addition, in this exemplary embodiment, exhaust sensor 43 to be to arrange with the mode of the isolation of the freeing pipe 24 that constitutes thermal source, and simultaneously, under the state of freeing pipe 24 outside the Width of motor bike 1 is exposed to, freeing pipe 24 can be held.Therefore, the temperature build-up of freeing pipe 24 and exhaust sensor 43 can be suppressed.In addition, because freeing pipe 24 arranges with the mode that separates with chaufeur, so freeing pipe 24 is positioned at the below of the crankcase 12 of driving engine 11.Yet; Through being placed on the clutch cover back plate 28 of crankcase 12 on the motor bike Width with respect to vertical line with intilted mode arranging exhaust air sensor 43 with the top of exhaust sensor 43 and seeing with relative mode in the face of between the silencer support 26 of clutch cover back plate 28 from side; Exhaust sensor 43 can be arranged near clutch cover back plate 28, therefore more effectively protect the front side and the rear side of exhaust sensor 43.
In addition; In this exemplary embodiment; Exhaust sensor 43 is arranged in rear and the below that is supported on the pivot 39 of the kick lever 40 on the pivot 39 along the short transverse of motor bike 1; Pivot 39 is protruding from the clutch cover back plate 28 of crankcase 12, simultaneously, the top of the upper angled of exhaust sensor 43 to exhaust sensor 43 not can with the action radius position overlapped of kick lever 40 in rotational plane.Therefore, even when kick lever 40 is operated, 40 protection exhaust sensors 43 can not be damaged thereby exhaust sensor 43 can not interfere with kick lever.In addition; The sensor connecting element 44 that is connected exhaust sensor 43 tops is along the more the inside that is placed on kick lever 40 on motor bike 1 Width, thereby so sensor connecting element 44 can not interfere with kick lever 40 protection sensor connecting elements 44 yet and can not be damaged.
In addition, in this exemplary embodiment, constituted the salient of crankcase 12 at the clutch cover back plate 28 of the length of vertically having protruded whole crankcase 12, so exhaust sensor 43 is arranged in the back of the clutch cover back plate 28 of longitudinal tensile strain.Thereby, thereby can avoid from the sudden small stone of front-wheel 5 with splash water and contact with exhaust sensor 43 and protected exhaust sensor 43 effectively.
In addition, in this exemplary embodiment, exhaust sensor 43 and freeing pipe 24 integral installations are on driving engine 11, and freeing pipe 24 and noise silencer 25 integral installations are on silencer support 26.Therefore; Can be exhaust sensor 43 with respect to the displacement inhibiting of clutch cover back plate 28 and silencer support 26 to smaller value; Therefore, thus exhaust sensor 43 can not interfere with peripheral body portion owing to the swing of the vibration of driving engine 11 or trailing wheel 35 makes exhaust sensor 43 avoid being damaged.
In addition; In this exemplary embodiment, freeing pipe 24 is divided into two parts, at the upstream side of next-door neighbour's freeing pipe 24 two-part connecting portion 24a; Exhaust sensor 43 is installed on the freeing pipe 24; Therefore, when installing or unloading the very heavy noise silencer of weight 25, exhaust sensor 43 avoids being damaged thereby exhaust sensor 43 can not contact protection with vehicle body or other engine side part.Equally, being connected exhaust sensor 43 upper sensor connecting elements 44 can exceedingly not drawn yet and broken away from.
In addition; In this exemplary embodiment; The length direction pars intermedia of the sensor connecting element of stretching from exhaust sensor 43 tops 44 is installed on the trunnion bracket 29; Therefore, thus the significantly vibration of sensor connecting element 44 can be prevented from stoping the generation such as the error detection of the disengaging of sensor connecting element 44 or exhaust sensor 43.In addition, through interior spatial destribution and sensor installation connecting element 44, can further improve the durability of sensor connecting element 44 at trunnion bracket.
Though show and the present invention be described with reference to certain exemplary embodiment of the present invention; But the technical personnel in present technique field it will be appreciated that; Under the spirit and scope situation that does not break away from claim of the present invention and limited, various changes can take place in form of the present invention and details.

Claims (7)

1. the exhaust gear of a motor bike, said motor bike comprises:
Body shell, this body shell have main frame and are installed in the trunnion bracket on the said main frame, can pivotally support the top that is pivotally mounted in trunnion bracket of the front end of rocking arm;
At the driving engine that is arranged on the motor bike short transverse below the main frame, this driving engine comprises from main frame crankcase suspended downwards and the cylinder cover that vertically extends to the front side from crankcase along motor bike; With
After motor bike vertically is arranged on said crankcase and the body component relative with this crankcase,
Said exhaust gear comprises:
Freeing pipe, this freeing pipe is attached on the said cylinder cover, and vertically extending back from the lower surface of cylinder cover along motor bike, and this freeing pipe is in the side of motor bike Width upper offset in said crankcase;
Noise silencer is connected the rear end of said freeing pipe; With
Exhaust sensor, this sensor are attached on the said freeing pipe, between said body component and crankcase,
The exhaust gear of this motor bike is characterised in that on the Width of said motor bike, said exhaust sensor slopes inwardly with respect to the short transverse of motor bike,
See that from the side of said motor bike the top of said exhaust sensor is between below the said pivot and back of said crankcase and said trunnion bracket.
2. exhaust gear as claimed in claim 1 is characterized in that,
Said exhaust sensor is arranged on the back lower place of second pivot, and the said second pivot rotor ground feet is stepped on actuating lever, and this second pivot is protruding on the motor bike Width from the salient of said crankcase;
The top of said exhaust sensor is skewed, the present position on this top not with the action radius overlaid of kick lever in rotational plane.
3. exhaust gear as claimed in claim 2 is characterized in that the salient of said crankcase comprises clutch cover back plate.
4. exhaust gear as claimed in claim 1 is characterized in that, said body component comprises and is installed to the silencer support on the said body shell to said noise silencer.
5. exhaust gear as claimed in claim 1 is characterized in that,
Said freeing pipe is divided into two parts by connecting portion;
At the upstream side of said two the part connecting portions of next-door neighbour, said exhaust sensor is attached on the freeing pipe.
6. in the described exhaust gear of claim 1, it is characterized in that,
The sensor connecting element stretches from the top of said exhaust sensor;
The pars intermedia of said sensor connecting element is clipped on the body shell.
7. motor bike comprises:
Body shell, this body shell have main frame and are installed in the trunnion bracket on the said main frame, can pivotally support the top that is pivotally mounted in trunnion bracket of the front end of rocking arm;
At the driving engine that is arranged on the motor bike short transverse below the main frame, this driving engine comprises from main frame crankcase suspended downwards and the cylinder cover that vertically extends to the front side from crankcase along motor bike;
After motor bike vertically is arranged on said crankcase and the body component relative with this crankcase;
Freeing pipe, this freeing pipe is attached on the said cylinder cover, and vertically extending back from the lower surface of cylinder cover along motor bike, and this freeing pipe is in the side of motor bike Width upper offset in said crankcase;
Noise silencer is connected the rear end of said freeing pipe; With
Exhaust sensor, this exhaust sensor are attached on the said freeing pipe, between said body component and crankcase,
The exhaust gear of this motor bike is characterised in that on the Width of said motor bike, said exhaust sensor slopes inwardly with respect to the short transverse of motor bike,
See that from the side of said motor bike the top of said exhaust sensor is between below the said pivot and back of said crankcase and said trunnion bracket.
CN2008101490750A 2007-09-20 2008-09-22 Exhaust apparatus of motorcycle Active CN101391632B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007243330A JP5083527B2 (en) 2007-09-20 2007-09-20 Motorcycle exhaust system
JP2007243330 2007-09-20
JP2007-243330 2007-09-20

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CN101391632A CN101391632A (en) 2009-03-25
CN101391632B true CN101391632B (en) 2012-02-08

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WO2016002961A1 (en) * 2014-07-04 2016-01-07 ヤマハ発動機株式会社 Vehicle and v-type multi-cylinder four-stroke engine unit
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CN101391632A (en) 2009-03-25
JP2009073308A (en) 2009-04-09
ITTO20080691A1 (en) 2009-03-21
JP5083527B2 (en) 2012-11-28
IT1394123B1 (en) 2012-05-25

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