WO2009110573A1 - 鞍乗型車両 - Google Patents
鞍乗型車両 Download PDFInfo
- Publication number
- WO2009110573A1 WO2009110573A1 PCT/JP2009/054213 JP2009054213W WO2009110573A1 WO 2009110573 A1 WO2009110573 A1 WO 2009110573A1 JP 2009054213 W JP2009054213 W JP 2009054213W WO 2009110573 A1 WO2009110573 A1 WO 2009110573A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- type vehicle
- canister
- fuel tank
- fuel
- straddle
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J35/00—Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J37/00—Arrangements of fuel supply lines, taps, or the like, on motor cycles or engine-assisted cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
Definitions
- the present invention relates to a straddle-type vehicle, and in particular, to a canister arrangement.
- Patent Document 1 discloses a motorcycle in which a canister is disposed in front of an engine.
- the activated carbon contained in the canister has a characteristic that it becomes easier to adsorb the evaporated fuel as it cools and releases the evaporated fuel as it warms. For this reason, it is preferable that the canister is cooled and the evaporated fuel is easily adsorbed by the activated carbon from the viewpoint of suppressing the evaporated fuel from being discharged into the atmosphere. Also in the said patent document 1, the canister is arrange
- the canister is connected to the throttle body, and during operation of the engine, the evaporated fuel is sucked out of the canister and taken into the engine. From this point of view, the canister is warmed and evaporated fuel from the activated carbon. It is preferable that it is easily released. That is, the canister is required to be easily warmed while the engine is operating and to be easily cooled while the engine is stopped.
- the canister disclosed in Patent Document 1 is disposed in front of the engine, and is easily cooled by receiving the traveling wind during traveling. Therefore, the canister does not satisfy the requirement of being easily heated during engine operation.
- the canister disposed in front of the engine in this manner is often exposed to direct sunlight and is likely to get warm when the vehicle is stopped, and therefore does not satisfy the requirement of being easily cooled while the engine is stopped.
- the present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a straddle-type vehicle including a canister that is easily warmed while the engine is operating and easily cooled when the engine is stopped.
- the saddle riding type vehicle of the present invention includes an engine, a fuel tank, a throttle body, and a canister.
- the engine includes a crankcase, a cylinder disposed on the crankcase, and a cylinder head disposed on the cylinder, and generates power for driving wheels.
- the fuel tank is disposed above the engine and stores fuel consumed by the engine.
- the throttle body is disposed at least partially below the fuel tank and behind the cylinder and the cylinder head, and adjusts the amount of air-fuel mixture supplied to the engine.
- the canister is connected to the fuel tank and the throttle body, and suppresses the gas generated by the evaporation of the fuel in the fuel tank from being discharged into the atmosphere. At least a part of the canister is disposed between the fuel tank and the cylinder head.
- the canister is disposed between the fuel tank and the cylinder head, so that the canister is easily warmed by receiving heat from the cylinder head during engine operation.
- the canister is easy to cool while the engine is stopped because there is little opportunity to be exposed to direct sunlight by the fuel tank that covers the canister.
- the engine is more susceptible to running wind, so that the cooling performance of the engine is improved.
- the heat received by the fuel tank from the cylinder head is reduced by the canister interposed therebetween, so that the evaporation of fuel in the fuel tank is suppressed.
- 1 is a left side view of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention.
- 1 is a front view of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention.
- 1 is a right side view of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention with a side cover removed.
- 1 is a right side view of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention with a side cover and a shroud removed.
- 1 is a front view of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention with a side cover and a shroud removed.
- 1 is a left side view in which a part of a fuel tank of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention is cut away.
- 1 is a bottom view of a fuel tank of a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention.
- 1 is a perspective view illustrating a structure for attaching a canister to a vehicle body frame in a motorcycle that is a saddle-ride type vehicle according to an embodiment of the present invention.
- 1 is a right side view of a canister attached to a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention, partly cut away.
- 1 is a right side view of a carburetor attached to a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention.
- 1 is a perspective view from the rear right side of a vehicle of a carburetor attached to a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention.
- 1 is a perspective view of a carburetor attached to a motorcycle that is a straddle-type vehicle according to an embodiment of the present invention from the front right side of the vehicle.
- FIG. 1 is a left side view of the motorcycle 10.
- FIG. 2 is a front view of the motorcycle 10.
- the motorcycle 10 has a vehicle body frame 30 that forms a skeleton of the motorcycle 10.
- the motorcycle 10 includes a front wheel 20, a front fork 21, an engine 40, a carburetor 50, a side cover 60, a seat 70, a side stand 80, a rear wheel 90, and a fuel tank 100.
- the engine 40, the side cover 60, the seat 70, the side stand 80, and the fuel tank 100 are attached to the vehicle body frame 30.
- the front wheel 20 is rotatably supported by a front fork 21 connected to the vehicle body frame 30.
- the front fork 21 is connected to the steering shaft 22 via the bridge 23.
- the steering shaft 22 is supported by the vehicle body frame 30.
- the steering shaft 22 is supported so as to be turnable to the left and right with respect to the traveling direction of the motorcycle 10.
- the engine 40 is a power unit that generates the driving force of the motorcycle 10.
- the engine 40 is attached to the vehicle body frame 30 at approximately the center in the front-rear direction of the motorcycle 10.
- the engine 40 generates driving force transmitted to the rear wheel 90.
- the driving force generated in the engine 40 is transmitted to the rear wheel 90 by the chain.
- the carburetor 50 adjusts the air-fuel mixture supplied to the engine 40.
- the carburetor 50 constitutes a throttle body.
- the carburetor 50 is not limited, and an electronically controlled fuel injection device may be used.
- the side cover 60 covers the side of the vehicle body frame 30.
- the side cover 60 is disposed on the left side of the motorcycle 10. Specifically, the side cover 60 is provided below the rear part of the fuel tank 100 and the front part of the seat 70.
- a side cover (not shown in FIG. 1) having a shape substantially symmetrical to the side cover 60 is disposed on the right side of the motorcycle 10.
- the seat 70 is disposed behind the fuel tank 100. A rider sits on the seat 70.
- the side stand 80 supports the motorcycle 10 when the motorcycle 10 is parked.
- the side stand 80 is disposed on the left side of the motorcycle 10.
- the fuel tank 100 stores fuel supplied to the engine 40.
- the fuel tank 100 is disposed above the engine 40.
- the fuel tank 100 has a left side portion 100La.
- a shroud 200L is attached to the left side 100La.
- the fuel tank 100 has a right side portion 100Ra.
- a shroud 200R is attached to the right side portion 100Ra (not shown in FIG. 1, see FIG. 3).
- the shrouds 200L and 200R extend downward from the side portions 100La and 100Ra of the fuel tank 100.
- the motorcycle 10 also has a fuel hose 170 for supplying fuel from the fuel tank 100 to the carburetor 50.
- the fuel hose 170 is disposed between the fuel tank 100 and the carburetor 50.
- the fuel hose 170 constitutes a fuel passage.
- the motorcycle 10 has a fuel cock 160.
- a fuel hose 170 is connected to the fuel cock 160.
- the fuel cock 160 opens and closes the fuel hose 170.
- the fuel hose 170 is disposed on the left side of the motorcycle 10.
- the fuel cock 160 is disposed inside the shroud 200L in the vehicle width direction.
- the fuel cock 160 faces outward from an opening 201 formed in the shroud 200L.
- FIG. 3 is a right side view of the periphery of the engine 40 of the motorcycle 10 with the side cover 60 provided on the side removed.
- 4 and 5 are a right side view and a front view of the motorcycle 10 with the side cover 60 and the shroud 200R removed from the periphery of the engine 40.
- FIG. In these drawings a state where the steering shaft 22 is detached from the vehicle body frame 30 is shown.
- the vehicle body frame 30 includes a steering head pipe 31, a main frame 32, a down tube 33, and a seat frame 34.
- the steering head pipe 31 supports the steering shaft 22 (see FIG. 1).
- the steering shaft 22 is supported by the steering head pipe 31 so as to be able to turn left and right with respect to the traveling direction.
- the main frame 32 extends rearward from the steering head pipe 31.
- the down tube 33 extends from the steering head pipe 31 obliquely downward and rearward.
- the seat frame 34 is connected to the main frame 32.
- the engine 40 is an air-cooled single cylinder engine, and includes a crankcase 43, a cylinder 41 disposed thereon, and a cylinder head 42 disposed thereon.
- the cylinder 41 is disposed along the down tube 33.
- the carburetor 50 is disposed below the fuel tank 100. Specifically, the carburetor 50 is disposed below the fuel tank 100 and behind the cylinder 41 and the cylinder head 42. The carburetor 50 is disposed on the lower right side of the main frame 32. The carburetor 50 is connected to the cylinder 41.
- the motorcycle 10 has an air cleaner 46.
- the air cleaner 46 is disposed below the seat frame 34 and behind the carburetor 50.
- the air cleaner 46 is connected to the carburetor 50.
- the air cleaner 46 purifies the air supplied to the carburetor 50.
- the air taken in from the air cleaner 46 is mixed with fuel by the carburetor 50 and then sucked into the cylinder 41.
- the fuel tank 100 has a tank bracket 120.
- the fuel tank 100 is attached to the seat frame 34 by a tank bracket 120.
- the fuel tank 100 is formed by bending a plurality of metal plates.
- the fuel tank 100 has a left side portion 100La (see FIG. 1) and a right side portion 100Ra.
- a fuel supply port (not shown) is provided on the upper surface of the fuel tank 100.
- a fuel cap 110 is attached to the fuel filler port. Details of the fuel tank 100 will be described later.
- the fuel tank 100 includes engaging portions 131 and 132 and a mounting portion 133 on the right side portion 100Ra.
- the shroud 200 ⁇ / b> R shown in FIG. 3 is attached to the engaging portions 131 and 132 and the attaching portion 133.
- the shroud 200R has a lower edge portion 200Ra.
- the lower edge portion 200Ra is substantially parallel to the upper surface of the cylinder head 42 in a side view. That is, the lower edge portion 200Ra extends in a direction substantially perpendicular to the direction in which the down tube 33 extends.
- the motorcycle 10 includes the canister 300 that suppresses the gas generated by the evaporation of fuel from being discharged into the atmosphere.
- the canister 300 constitutes a fuel evaporative emission control device.
- the canister 300 has a cylindrical portion 310 having a function of purifying gas (see FIG. 9). As shown in FIG. 4, the canister 300 is disposed on the right side of the motorcycle 10. That is, it is disposed on the side opposite to the side where the side stand 80 is disposed. The canister 300 is disposed on the right side in a gap formed in front of the carburetor 50, below the fuel tank 100, and above the cylinder head 42. A fuel hose 170 is disposed on the left side in the gap (see FIG. 5). The longitudinal direction of the cylindrical portion 310 is along the front-rear direction of the motorcycle 10.
- the canister 300 is attached to a mounting portion 39 provided on a connecting portion 35 (not shown in FIG. 4, refer to FIG. 8) of the vehicle body frame 30 via a bracket 38.
- the lower edge portion 200Ra of the shroud 200R shown in FIG. 3 is positioned below the lower end portion 300a (see FIG. 4) of the canister 300 in a state where the shroud 200R is mounted on the fuel tank 100. That is, the canister 300 is hidden by the shroud 200R in a side view with the shroud 200R attached to the fuel tank 100 (see FIG. 3).
- a rollover valve 360, a hose 361, a purge hose 370, and a discharge hose 380 are connected to the canister 300.
- the rollover valve 360 prevents fuel from flowing from the fuel tank 100 into the canister 300 when the motorcycle 10 rolls over a predetermined angle.
- the rollover valve 360 is disposed below the fuel tank 100 and in front of the canister 300, that is, below the front end portion 100 c of the fuel tank 100.
- the rollover valve 360 is attached to the down tube 33 by the valve support portion 38a.
- the discharge hose 380 extends along the down tube 33 toward the lower side of the vehicle.
- the hose 361 is connected to the rollover valve 360.
- the hose 143 connects the rollover valve 360 and the fuel tank 100.
- the purge hose 370 is connected to the carburetor 50 through the center of the vehicle.
- the purge hose 370 is disposed on the right side of the motorcycle 10 as shown in FIG. In other words, the fuel hose 170 is disposed on the side opposite to the side on which the fuel hose 170 is disposed. Further, as shown in FIG. 4, the purge hose 370 is disposed between the lower end portion 100 a of the fuel tank 100 and the cylindrical portion 310 in the side view of the motorcycle 10.
- the canister 300 is connected to the fuel tank 100 by the rollover valve 360 and the hose 143.
- the canister 300 is connected to the carburetor 50 by a purge hose 370. Details of the structure of the canister 300 will be described later.
- FIG. 6 is a left side view in which a part of the fuel tank 100 is cut away.
- FIG. 7 is a bottom view of the fuel tank 100.
- a recess 100b is formed in which the main frame 32 (see FIG. 4) is located.
- the fuel tank 100 is attached to the main frame 32 via the tank bracket 120 with the main frame 32 positioned in the recess 100b.
- the fuel tank 100 has a pipe 140.
- a suction port 141 is disposed at the upper end of the pipe 140.
- a connecting portion 142 that opens toward the outside of the fuel tank 100 is disposed on the bottom surface of the front end portion 100 c of the fuel tank 100.
- the connecting portion 142 is connected to a hose 143 that is connected to the above-described rollover valve 360.
- the pipe 140 is supported inside the fuel tank 100 by the stay 150 and is connected to the connecting portion 142.
- the suction port 141 is disposed so as to be above the liquid level of the fuel when the fuel tank 100 is filled with fuel and the motorcycle 10 is not tilted.
- the gas in which the fuel is evaporated in the fuel tank 100 is sucked from the suction port 141 and is guided to the canister 300 through the pipe 140, the connecting portion 142, the hose 143, the rollover valve 360, and the hose 361.
- FIG. 8 is a perspective view for explaining a structure for attaching the canister 300 to the body frame 30.
- the vehicle body frame 30 includes a connecting portion 35 that connects the main frame 32 and the down tube 33.
- the connection part 35 has an attachment part 39 to which a bracket 38 (see FIG. 4) is attached.
- a gusset 36 is disposed between the main frame 32 and the connecting portion 35.
- the gusset 36 is disposed to increase the rigidity of the vehicle body frame 30.
- a bracket 37 is disposed on the gusset 36.
- the canister 300 is attached to the bracket 37.
- FIG. 9 is a right side view in which the canister 300 is partially cut away.
- the cylindrical part 310 includes a connection part 320, a connection part 330, and a connection part 340.
- the connection part 320 and the connection part 330 are formed in the front end part 310 a of the cylindrical part 310.
- the connecting portion 340 is formed at the rear end portion 310b of the cylindrical portion 310.
- the hose 361 is connected to the connection part 320. That is, the connection part 320 is connected to the fuel tank 100 via the rollover valve 360.
- a purge hose 370 is connected to the connecting portion 330. That is, the connection part 330 is connected to the carburetor 50 via the purge hose 370.
- the discharge hose 380 is connected to the connection part 340. That is, the gas purified in the cylindrical portion 310 is discharged from the connection portion 340.
- connection part 320 constitutes a tank connection part.
- the connecting part 330 constitutes a throttle body connecting part.
- the connection part 340 and the discharge hose 380 comprise a discharge part.
- the cylindrical portion 310 has a wall portion 312 and a wall portion 313 inside.
- the wall 312 and the wall 313 are permeable to gas.
- the cylindrical portion 310 has activated carbon 311 inside.
- the activated carbon 311 is filled between the wall 312 and the wall 313.
- the cylindrical portion 310 has a spring 314.
- the spring 314 biases at least one wall portion 312 in the direction of the other wall portion 313. Thereby, the activated carbon is prevented from moving inside the cylindrical portion 310 due to the inclination, vibration, etc. of the motorcycle 10.
- FIG. 10 is a right side view of the carburetor 50 attached to the motorcycle 10.
- FIG. 11 is a perspective view of the carburetor 50 attached to the motorcycle 10 from the rear right side of the vehicle.
- FIG. 12 is a perspective view of the carburetor 50 attached to the motorcycle 10 from the front right side of the vehicle.
- the carburetor 50 includes a throttle valve 51a, a main body 51, a throttle pulley 52, a throttle wire 53, and a bracket 54.
- the throttle pulley 52 and the bracket 54 constitute a wire connection portion to which the throttle wire 53 is connected.
- the carburetor 50 is connected to an intake duct 47 that takes in the air purified by the air cleaner 46 into the main body 51 and an intake duct 48 that sends an air-fuel mixture to the cylinder 41.
- the throttle valve 51 a adjusts the inflow amount of air taken into the main body 51 through the intake duct 47 and the inflow amount of the air-fuel mixture into the cylinder 41.
- the throttle valve 51 a is built in the main body 51.
- the throttle pulley 52 is connected to the throttle valve 51a.
- the throttle pulley 52 rotates the throttle valve 51a.
- the throttle wire 53 is connected to the throttle pulley 52.
- the throttle wire 53 is supported by the bracket 54.
- the throttle wire 53 is connected to a throttle grip (not shown) provided in the handlebar grip portion of the motorcycle 10.
- Rotational motion of a throttle grip (not shown) is transmitted to the throttle pulley 52 via the throttle wire 53.
- the throttle valve 51 a is adjusted according to the rotation operation of the throttle pulley 52.
- the throttle pulley 52 and the bracket 54 are disposed outside the main body 51 in the vehicle width direction.
- the purge hose 370 is disposed between the main body 51 and the throttle pulley 52 and the bracket 54.
- the purge hose 370 is disposed on the inner side in the vehicle width direction than the throttle pulley 52 and the bracket 54.
- the purge hose 370 is disposed along the throttle wire 53.
- the purge hose 370 is located on the outer side in the vehicle width direction than the throttle wire 53.
- the purge hose 370 intersects the throttle wire 53 on the carburetor 50 side with respect to the section 370a.
- the fuel tank 100 is disposed above the engine 40, and the carburetor 50 constituting the throttle body is located below the fuel tank 100 and the cylinder 41.
- the canister 300 is disposed between the fuel tank 100 and the cylinder head 42.
- the canister 300 since the canister 300 is disposed between the fuel tank 100 and the cylinder head 42, the canister 300 is easily heated by receiving heat from the cylinder head 42 while the engine 40 is operating. On the other hand, the canister 300 is less likely to be exposed to direct sunlight by the fuel tank 100 that covers the canister 300, and thus canister 300 is easily cooled while the engine 40 is stopped.
- the canister 300 is disposed between the fuel tank 100 and the cylinder head 42. Heat for heating 300 is easily secured. Further, it is possible to prevent foreign objects such as stones flying from the outside from hitting the canister 300. It should be noted that canister 300 receives traveling wind when the vehicle travels, so that it is suppressed from being heated excessively. In addition, since the heat from the engine 40 toward the fuel tank 100 is absorbed by the canister 300 interposed therebetween, the evaporation of fuel in the fuel tank 100 is suppressed.
- the canister 300 is provided at a height below the fuel tank 100 and above the carburetor 50, and is provided at a position between the connecting portion 142 of the fuel tank 100 and the carburetor 50. For this reason, it is possible to shorten the hose 143 extending from the connecting portion 142 of the fuel tank 100 to the canister 300 and the purge hose 370 extending from the canister 300 to the carburetor 50 and easy to route. Further, the hose 143 and the purge hose 370 are collected in the front end portion 310a of the cylindrical body portion 310, thereby facilitating maintenance work.
- a shroud 200R is attached to the right side portion 100Ra of the fuel tank 100, and a lower edge portion 200Ra of the shroud 200R is a lower end portion 300a of the canister 300 (see FIG. 3). 4)).
- the canister 300 is hidden by the shroud 200R in appearance, and the above-described effect, that is, the canister 300 is heated by receiving heat from the cylinder head 42. The effect of suppressing the hit of foreign matter and the effect of blocking direct sunlight are further enhanced.
- the length of the cylindrical portion 310 from the front end to the rear end in the vehicle front-rear direction is made longer than the length from the upper end to the lower end in the vehicle vertical direction. .
- the fuel tank 100 and the engine 40 can be brought close to each other, and the vehicle height can be suppressed.
- the length from the front end to the rear end in the vehicle front-rear direction of the cylindrical portion 310 is larger than the length from the left end to the right end in the vehicle width direction.
- the cylindrical portion 310 of the canister 300 is arranged in a posture in which the lower end of the front portion in the vehicle front-rear direction is positioned slightly above the lower end of the rear portion. For this reason, when the vehicle travels, the traveling wind strikes the lower surface of the cylindrical portion 310 and the traveling wind that strikes the lower surface is guided to the cylinder head 42 side. That is, when the traveling wind hits the lower surface of the cylindrical portion 310, excessive heating of the canister 300 is suppressed, and the traveling wind is guided to the cylinder head 42 side, so that cooling of the cylinder head 42 is also promoted.
- the canister 300 is disposed in a gap in front of the carburetor 50, below the fuel tank 100, and above the cylinder head 42.
- the carburetor 50 is also disposed below the fuel tank 100. For this reason, the canister 300 is disposed in the vicinity of the fuel tank 100 and the carburetor 50.
- the motorcycle 10 in which the canister 300 is disposed in the vicinity of the fuel tank 100 and the carburetor 50 can be provided.
- the canister 300 is disposed in front of the carburetor 50, the overall height of the motorcycle (seat) is compared with the case where the fuel tank, the canister, the throttle body, and the engine are disposed along the vertical direction of the motorcycle. High) can be suppressed.
- the canister 300 can be disposed in the vicinity of the fuel tank 100 and the carburetor 50.
- the motorcycle 10 includes a shroud 200R extending downward from the right side portion 100Ra of the fuel tank 100, and the lower edge portion 200Ra of the shroud 200R is located below the lower end portion 300a of the canister 300. Further, the canister 300 has a cylindrical portion 310, and the longitudinal direction of the cylindrical portion 310 is along the front-rear direction of the motorcycle 10.
- the canister 300 is hidden by the shroud 200R. Therefore, according to the motorcycle 10, the appearance quality of the motorcycle can be improved.
- the connecting portion 320 communicating with the fuel tank 100 and the connecting portion 330 communicating with the carburetor 50 are located at the front end portion 310a of the cylindrical portion 310.
- a connecting portion 142 is disposed on the bottom surface of the front end portion 100 c of the fuel tank 100.
- the piping length from the fuel tank 100 to the canister 300 can be shortened.
- the piping can be easily handled.
- the rollover valve 360 is disposed below the front end portion 100c of the fuel tank 100. Therefore, the piping length from the fuel tank 100 to the canister 300 can be shortened, and the piping can be easily handled.
- the canister 300 is attached to the vehicle body frame 30 by the bracket 37 and the bracket 38.
- the rollover valve 360 that prevents the fuel from flowing into the canister 300 as a liquid is fixed to the down tube 33 by the valve support portion 38a.
- the bracket 37 and the bracket 38 are attached to the connecting portion 35 that connects the main frame 32 and the down tube 33.
- a shroud 200L extending downward from the left side 100La is attached to the left side 100La of the fuel tank 100. Further, a shroud 200R extending downward from the right side portion 100Ra is attached to the right side portion 100Ra.
- the canister 300 can be securely fixed while preventing the bracket 37 for supporting the canister 300 and the bracket 3 canister from being visually recognized.
- the fuel hose 170 is disposed on the left side of the motorcycle 10, and the canister 300 is disposed on the right side of the motorcycle 10. Therefore, the space located below the fuel tank 100 can be used efficiently.
- the canister 300 is disposed in a gap in front of the carburetor 50, below the fuel tank 100, and above the cylinder head 42.
- the carburetor 50 is disposed below the fuel tank 100. That is, the canister 300 is disposed in the vicinity of the fuel tank 100 and the carburetor 50.
- the purge hose 370 is disposed between the main body 51 of the carburetor 50 and the throttle pulley 52 and the bracket 54.
- the throttle wire 53 connected to the throttle pulley 52 and the bracket 54, and the purge hose 370. Can be prevented from interfering with each other.
- the throttle pulley 52 and the bracket 54 are disposed on the outer side in the vehicle width direction than the main body 51, and the purge hose 370 is disposed on the inner side in the vehicle width direction with respect to the throttle pulley 52 and the bracket 54. . Further, the purge hose 370 is disposed along the throttle wire 53.
- the purge hose 370 intersects with the throttle wire 53, and in the section 370a, the purge hose 370 is located outside the throttle wire 53 in the vehicle width direction.
- a fuel hose 170 for supplying fuel to the carburetor 50 is formed between the fuel tank 100 and the carburetor 50.
- the fuel hose 170 is disposed on the left side of the motorcycle 10.
- the purge hose 370 is disposed on the right side of the motorcycle 10.
- the canister 300 has the cylindrical portion 310, and the longitudinal direction of the cylindrical portion 310 is along the front-rear direction of the motorcycle 10.
- the connecting part 320 communicating with the fuel tank 100 is located at the front end part 310 a of the cylindrical part 310.
- a connecting portion 142 is disposed on the bottom surface of the front end portion 100 c of the fuel tank 100.
- the rollover valve 360 is disposed below the front end portion 100 c of the fuel tank 100.
- the pipe length from the fuel tank 100 to the canister 300 can be shortened by connecting the connection part 320 and the connection part 142 via the rollover valve 360.
- the piping can be easily handled.
- the canister 300 has a discharge hose 380 that discharges the gas purified in the cylindrical portion 310 from the cylindrical portion 310, and the discharge hose 380 is connected to the rear end portion 310b of the cylindrical portion 310.
- the connecting portion 330 communicating with the carburetor 50 is formed at the front end portion 310 a of the cylindrical portion 310, and the purge hose 370 connected to the connecting portion 330 is a lower end portion 100 a of the fuel tank 100 in a side view of the motorcycle 10.
- the cylindrical portion 310 is formed at the front end portion 310 a of the cylindrical portion 310, and the purge hose 370 connected to the connecting portion 330 is a lower end portion 100 a of the fuel tank 100 in a side view of the motorcycle 10.
- the piping can be improved.
- the motorcycle 10 is described as an example of the saddle riding type vehicle.
- the number of wheels is not limited to two as long as it is a saddle riding type vehicle.
- the number of wheels may be three.
- the number of wheels may be four.
- the fuel hose 170 is disposed on the left side of the motorcycle 10 and the canister 300 is disposed on the right side of the motorcycle 10.
- the canister 300 is disposed on the left side of the motorcycle 10.
- a fuel hose 170 may be disposed on the right side.
- bracket 37 and the bracket 38 that support the canister 300 may not be attached to the vehicle body frame 30, in particular, the main frame 32.
- connection part 320 communicating with the fuel tank and the connection part 340 through which the gas purified inside the cylinder part is discharged are not necessarily connected to the front end part 310a of the cylinder part 310. It does not have to be located.
- the canister 300 has the rollover valve 360.
- the rollover valve 360 may not be fixed to the bracket 38. Further, the canister 300 does not necessarily have the rollover valve 360.
- the canister 300 is not limited to the configuration shown in FIG. 9 as long as it has a function of suppressing the gas in which the fuel is evaporated from being discharged into the atmosphere.
- the activated carbon 311 instead of the activated carbon 311, a material having gas adsorption ability can be used.
- the purge hose 370 may be disposed between the main body 51, the throttle pulley 52, and the bracket 54.
- the throttle pulley 52 and the bracket 54 are wider than the main body 51 in the vehicle width. It does not need to be arranged outside in the direction. Further, the purge hose 370 may not be disposed along the throttle wire 53.
- section 370a in which the purge hose 370 is located on the outer side in the vehicle width direction than the throttle wire 53 is not limited to the section shown in FIG.
- the purge hose 370 may be positioned between the lower end portion 100a of the fuel tank 100 and the cylindrical body portion 310 so that the purge hose 370 intersects with the throttle wire 53 and inward in the vehicle width direction.
- the side stand 80 is disposed on the left side of the motorcycle 10 and the canister 300 is disposed on the right side of the motorcycle 10.
- the canister 300 is disposed on the left side of the motorcycle 10.
- the side stand 80 may be disposed on the right side.
- the longitudinal direction of the cylindrical portion 310 is assumed to be along the front-rear direction of the motorcycle 10.
- the connection part 320 communicating with the fuel tank and the connection part 340 through which the purified gas is discharged inside the cylindrical body part are not necessarily located at the front end portion 310 a of the cylindrical body part 310. Also good.
- the structure is not required to make the piping unnecessarily long, and can be appropriately changed according to the structure of the canister 300.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
まず、本実施形態に係る鞍乗型車両である自動二輪車10の全体概略構成について説明する。図1は、自動二輪車10の左側面図である。図2は、自動二輪車10の正面図である。
次に、図3、図4及び図5を用いて、自動二輪車10のエンジン40周辺部について説明する。図3は、自動二輪車10のエンジン40周辺部において、側方に設けられるサイドカバー60を外した右側面図である。図4及び図5は、自動二輪車10のエンジン40周辺部においてサイドカバー60及びシュラウド200Rを外した状態の右側面図及び正面図である。これらの図では、車体フレーム30からステアリングシャフト22が外された状態が表される。
自動二輪車10は、燃料の蒸発により発生した気体が大気中に排出されることを抑制するキャニスタ300を有する。本実施形態では、キャニスタ300は、燃料蒸発ガス排出抑制装置を構成する。
次に、燃料タンク100の構造について、図6及び図7を用いて説明する。図6は、燃料タンク100の一部を切り欠いた左側面図である。図7は、燃料タンク100の底面図である。
図8は、キャニスタ300を車体フレーム30に取り付ける構造を説明する斜視図である。図8に示すように、車体フレーム30は、メインフレーム32とダウンチューブ33とを連結する連結部35を有する。連結部35は、ブラケット38(図4参照)を取り付ける取付部39を有する。
次に、図9を用いて、キャニスタ300の構造を説明する。図9は、キャニスタ300を一部切り欠いた右側面図である。
次に、キャブレター50の構造について、図10、図11及び図12を用いて説明する。図10は、自動二輪車10に取り付けられたキャブレター50の右側面図である。図11は、自動二輪車10に取り付けられたキャブレター50の車両右側後方からの斜視図である。図12は、自動二輪車10に取り付けられたキャブレター50の車両右側前方からの斜視図である。
上記自動二輪車10では、図4に示すように、燃料タンク100は、エンジン40の上方に配置され、スロットルボディを構成するキャブレター50は、燃料タンク100より下方、かつシリンダ41及びシリンダヘッド42より後方に配置され、キャニスタ300は、燃料タンク100とシリンダヘッド42との間に配置される。
上述したように、本発明の一実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態が明らかとなる。
Claims (13)
- クランクケースと、前記クランクケース上に配置されるシリンダと、前記シリンダ上に配置されるシリンダヘッドとを有し、車輪を駆動する動力を発生するエンジンと、
前記エンジンの上方に配置され、前記エンジンに消費される燃料を蓄える燃料タンクと、
少なくとも一部が前記燃料タンクより下方、かつ前記シリンダ及び前記シリンダヘッドより後方に配置され、前記エンジンに供給される混合気の量を調節するスロットルボディと、
前記燃料タンク及び前記スロットルボディに接続され、前記燃料タンク内で前記燃料の蒸発により発生した気体が大気中に排出されることを抑制するキャニスタと、
を備え、
前記キャニスタの少なくとも一部が、前記燃料タンクと前記シリンダヘッドとの間に配置される、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記燃料タンクの側部に取り付けられるカバー部材を更に備え、
前記カバー部材の下端部が、前記キャニスタよりも下方に位置する、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記キャニスタは、筒体部を有し、
前記筒体部では、車両前後方向の長さが車両上下方向の長さよりも大きい、
ことを特徴とする鞍乗型車両。 - 請求の範囲第3項に記載の鞍乗型車両において、
前記筒体部では、前記車両前後方向の長さが車両幅方向の長さよりも大きい、
ことを特徴とする鞍乗型車両。 - 請求の範囲第3項に記載の鞍乗型車両において、
前記筒体部は、前部の下端が後部の下端よりも上方に位置する姿勢で配置される、
ことを特徴とする鞍乗型車両。 - 請求の範囲第3項に記載の鞍乗型車両において、
前記筒体部の前端部には、前記燃料タンクに連通するタンク接続部が設けられる、
ことを特徴とする鞍乗型車両。 - 請求の範囲第6項に記載の鞍乗型車両において、
前記筒体部の前端部には、前記スロットルボディに連通するスロットルボディ接続部が設けられる、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記鞍乗型車両が所定角度以上ロールするときに、前記燃料タンクから前記キャニスタへの前記燃料の流入を抑制するロールオーバーバルブを更に備え、
前記ロールオーバーバルブは、前記燃料タンクより下方、かつキャニスタより前方に配置される、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記キャニスタは、車体フレームに取り付けられたブラケットに支持される、
ことを特徴とする鞍乗型車両。 - 請求の範囲第9項に記載の鞍乗型車両において、
前記鞍乗型車両が所定角度以上ロールするときに、前記燃料タンクから前記キャニスタへの前記燃料の流入を抑制するロールオーバーバルブを更に備え、
前記ロールオーバーバルブは、前記ブラケットに支持される。
ことを特徴とする鞍乗型車両。 - 請求の範囲第9項に記載の鞍乗型車両において、
前記車体フレームは、ステアリングシャフトを支持するステアリングヘッドパイプから車両前後方向の後側に延びる中央フレーム部を有し、
前記燃料タンクには、前記中央フレーム部が位置する凹部が形成され、
前記ブラケットは、前記中央フレーム部に取り付けられる、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記燃料タンクから前記スロットルボディに前記燃料を供給する燃料通路を更に備え、
前記キャニスタと前記燃料通路とが車両幅方向の中央を挟んだ両側に配置される、
ことを特徴とする鞍乗型車両。 - 請求の範囲第1項に記載の鞍乗型車両において、
前記筒体部の後端部には、該筒体部の内部で浄化された前記気体を排出する排出ホースが接続される、
ことを特徴とする鞍乗型車両。
Priority Applications (7)
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BRPI0909693-0A BRPI0909693B1 (pt) | 2008-03-07 | 2009-03-05 | Veículo do tipo de andar montado com um cânister disposto entre o tanque de combustível e o cabeçote de cilindro |
CN2009801080316A CN101960134A (zh) | 2008-03-07 | 2009-03-05 | 骑乘型车辆 |
EP09716983.3A EP2258938B1 (en) | 2008-03-07 | 2009-03-05 | Straddle-type vehicle |
ES09716983.3T ES2542519T3 (es) | 2008-03-07 | 2009-03-05 | Vehículo del tipo de montar a horcajadas |
US12/920,625 US8418794B2 (en) | 2008-03-07 | 2009-03-05 | Straddle-type vehicle |
JP2010600030U JP3165481U (ja) | 2008-03-07 | 2009-03-05 | 鞍乗型車両 |
TW098107476A TWI399482B (zh) | 2008-03-07 | 2009-03-06 | 跨坐型車輛 |
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JP2008058753 | 2008-03-07 | ||
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EP (1) | EP2258938B1 (ja) |
JP (1) | JP3165481U (ja) |
CN (2) | CN105041515B (ja) |
BR (1) | BRPI0909693B1 (ja) |
ES (1) | ES2542519T3 (ja) |
TW (1) | TWI399482B (ja) |
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JP3165481U (ja) | 2011-01-27 |
EP2258938A4 (en) | 2012-09-05 |
US8418794B2 (en) | 2013-04-16 |
TWI399482B (zh) | 2013-06-21 |
CN105041515B (zh) | 2018-10-26 |
TW200951297A (en) | 2009-12-16 |
BRPI0909693B1 (pt) | 2021-10-05 |
EP2258938A1 (en) | 2010-12-08 |
EP2258938B1 (en) | 2015-07-08 |
ES2542519T3 (es) | 2015-08-06 |
US20110100742A1 (en) | 2011-05-05 |
BRPI0909693A2 (pt) | 2015-09-22 |
CN105041515A (zh) | 2015-11-11 |
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