WO2020121487A1 - 調整弁配置構造 - Google Patents
調整弁配置構造 Download PDFInfo
- Publication number
- WO2020121487A1 WO2020121487A1 PCT/JP2018/045906 JP2018045906W WO2020121487A1 WO 2020121487 A1 WO2020121487 A1 WO 2020121487A1 JP 2018045906 W JP2018045906 W JP 2018045906W WO 2020121487 A1 WO2020121487 A1 WO 2020121487A1
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- WIPO (PCT)
- Prior art keywords
- canister
- fuel tank
- main frame
- pipe
- vehicle
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
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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
- 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
Definitions
- the present invention relates to a regulating valve arrangement structure.
- Patent Document 1 discloses a straddle-type vehicle in which a purge control valve (PCSV) incorporating a solenoid is provided in a main frame.
- the purge pipe connected to the PCSV is arranged in the front-rear direction along the main frame.
- the arrangement of the purge pipe becomes complicated.
- the arrangement of the purge pipe is likely to be complicated, and it is desired to shorten the purge pipe.
- the present invention provides a regulating valve arrangement structure capable of shortening the purge pipe.
- One aspect of the present invention is a straddle-type vehicle (1) in which a main frame (22) extending in the vehicle front-rear direction, a fuel tank (5) disposed above the main frame (22), and the fuel tank ( 5) a canister (30) arranged below the canister (30), which is arranged below the canister (30) and introduces the return fuel from the canister (30) into the engine (11);
- a regulating valve (50) arranged between the canister (30) and the intake device (40) for regulating the amount of the return fuel from the canister (30), the canister (30) and the regulating valve
- a purge pipe (32) for connecting the purge pipe (32) with the purge pipe (32), and the adjustment valve (50) is provided so that the purge pipe (32) can be installed in a vertical direction of the vehicle.
- the adjusting valve is provided with the purge pipe vertically arranged. Play. Since the vertical arrangement of the purge pipe is permitted, the arrangement of the purge pipe is simplified as compared with the case where the purge pipe is arranged only in the front-rear direction along the main frame. Therefore, the purge pipe can be shortened.
- One aspect of the present invention is that, in side view, the canister (30), the intake device (40), and the regulating valve (50) are provided between a front end and a rear end (A1) of the fuel tank (5). It is characterized by being arranged.
- the canister, the intake device, and the purge pipe can be routed in the region between the front and the rear of the fuel tank. Therefore, the entire pipe length can be shortened as compared with the case where at least one of the canister, the intake device, and the regulating valve is arranged outside the front end or the rear end of the fuel tank in a side view.
- One aspect of the present invention is characterized in that the regulating valve (50) is arranged within a lateral width (W1) of the fuel tank (5) in a front view. According to this configuration, the purge pipe can be further shortened as compared with the case where the adjustment valve is disposed outside the left and right widths of the fuel tank when viewed from the front.
- the canister (30) is disposed above the main frame (22), the engine (11) is disposed below the main frame (22), and the purge pipe is disposed. (32) is arranged so as to cross the main frame (22) in the vertical direction.
- the purge pipe is arranged so as to traverse the main frame in the vertical direction while allowing the purge pipe to be arranged in the vertical direction, so that it is possible to further shorten the entire pipe. ..
- the canister since the canister is arranged above the main frame and the engine is arranged below the main frame, the canister and the engine are separated from each other, so that the influence of the heat of the engine can be suppressed.
- One aspect of the present invention is characterized in that the intake device (40) is arranged on the inner side in the vehicle width direction with respect to the regulating valve (50). With this configuration, the purge pipe can be made compact in the vehicle width direction as compared with the case where the intake device is arranged outside the adjustment valve in the vehicle width direction.
- One aspect of the present invention is characterized in that the purge pipe (32) is arranged inside the charge pipe (31) in the vehicle width direction. According to this configuration, the arrangement of the purge pipe in the vehicle width direction can be shortened as compared with the case where the purge pipe is arranged outside the charge pipe in the vehicle width direction.
- One aspect of the present invention is characterized in that the canister (30) overlaps the fuel tank (5) in a side view. According to this configuration, the canister can be protected from the side surface in the vehicle width direction by the fuel tank.
- FIG. 3 is a front view including a III-III cross section of FIG. 1.
- 4 is a top view including a IV-IV cross section of FIG. 1.
- FIG. 5 is a right side view including a VV cross section of FIG. 3. It is a right view of the battery box which concerns on embodiment.
- FIG. 1 shows a motorcycle 1 as an example of a saddle type vehicle.
- the motorcycle 1 includes front wheels (not shown) and rear wheels 4.
- the front wheels are steered by the steering wheel 2.
- the rear wheels 4 are driven by a power unit 10 including a power source.
- the motorcycle may be simply referred to as “vehicle”.
- Reference numeral 20 in the drawing denotes a vehicle body frame that is a skeleton of the vehicle.
- the body frame 20 is formed by integrally joining a plurality of types of steel materials by welding or the like.
- the vehicle body frame 20 includes a head pipe 21, a main frame 22, a down frame 23, a pivot frame 24, a seat rail 25, and a support frame 26.
- the head pipe 21 is located at the front end of the body frame 20. In a side view, the head pipe 21 is inclined so that the upper end of the head pipe 21 is located rearward and the lower end of the head pipe 21 is located forward.
- the head pipe 21 steerably supports front wheels (not shown) via front forks (not shown).
- the main frame 22 extends in the vehicle front-rear direction.
- the front end of the main frame 22 is connected to the upper portion of the head pipe 21.
- the main frame 22 is formed of a single member so as to be along the vehicle body left-right center line CL (see FIG. 2).
- the main frame 22 includes a first extending portion 22a that extends obliquely rearward and downward from the head pipe 21, and a rear end of the first extending portion 22a that is steeper than the first extending portion 22a via a curved portion 22c.
- a second extending portion 22b extending downward.
- the down frame 23 is formed of a single member so as to be along the vehicle body left-right center line CL (see FIG. 2).
- the down frame 23 extends rearward and downward from the lower portion of the head pipe 21 at a steeper slope than the first extending portion 22a of the main frame 22.
- Reference numeral 27 in the drawing denotes a gusset plate that connects the front end of the main frame 22 and the front end of the down frame 23.
- the pivot frame 24 is joined to the second extending portion 22b of the main frame 22.
- a pair of left and right pivot frames 24 is provided so as to extend downward from the lower end of the second extending portion 22b.
- a cross pipe (not shown) is connected between the left and right pivot frames 24 in the vehicle width direction.
- the pivot frame 24 is provided with a pivot portion 24a that swingably supports the front end portion of the swing arm 28.
- the seat rail 25 is coupled to the curved portion 22c of the main frame 22.
- a pair of left and right seat rails 25 are provided so as to extend rearward from the curved portion 22c of the main frame 22.
- the support frame 26 connects the pivot frame 24 and the seat rail 25.
- a pair of left and right support frames 26 is provided so as to extend obliquely rearward and upward from the pivot frame 24 toward the seat rail 25.
- the power unit 10 is arranged below the first extending portion 22a of the main frame 22.
- the power unit 10 has a structure in which an engine 11 and a transmission 12 are integrated.
- the power unit 10 is fastened to the down frame 23 and the pivot frame 24 via a hanger bracket.
- reference numeral 13 indicates a front hanger for supporting the front portion of the power unit 10 on the down frame 23
- reference numeral 14 indicates a rear hanger for supporting the rear portion of the power unit 10 on the pivot frame 24.
- the power unit 10 includes a crankcase 15 having a transmission 12 built in a rear portion thereof, and a cylinder 16 coupled to a front portion of the crankcase 15.
- the cylinder 16 is erected from the upper front part of the crankcase 15 to the upper front part along the down frame 23.
- the cylinder 16 includes a cylinder block 16a connected to the front upper part of the crankcase 15, a cylinder head 16b connected to the upper part of the cylinder block 16a, and a head cover 16c covering the upper part of the cylinder head 16b.
- a piston (not shown) is housed inside the cylinder block 16a.
- the cylinder head 16b forms a combustion chamber (not shown) above the piston.
- An intake passage 17 (see FIG. 4) for introducing the air purified by the air cleaner 41 and the injected fuel is connected to the rear portion (rear surface) of the cylinder head 16b.
- the exhaust pipe 18 is pulled out from the cylinder head 16b to the lower front side, and then extends toward the rear side of the vehicle body below the front side of the crankcase 15.
- a muffler 19 is connected to the rear end of the exhaust pipe 18.
- Reference numeral 29 in the figure denotes a regulating valve arrangement structure including a purge control valve (hereinafter also referred to as "PCSV") having a solenoid built therein in the vehicle.
- the adjusting valve arrangement structure 29 includes a main frame 22, a fuel tank 5, a canister 30, an intake manifold 40 (intake device), a PCSV 50 (adjusting valve), and a purge pipe 32.
- the fuel tank 5 stores the fuel supplied to the engine 11.
- the fuel tank 5 is arranged above the first extending portion 22 a of the main frame 22.
- the fuel tank 5 is supported by the first extending portion 22 a of the main frame 22 and the front portions of the left and right seat rails 25.
- a seat 6 on which a driver can sit is arranged behind the fuel tank 5.
- the seat 6 is supported by the left and right seat rails 25.
- the rear part of the fuel tank 5 is covered by the front part of the seat 6.
- reference numeral 5a indicates a bottom plate forming the bottom of the fuel tank 5
- reference numeral 5b indicates a flange portion having an attachment portion for attaching the fuel tank 5 to the vehicle body frame 20.
- the air cleaner 41 is arranged in a region surrounded by the seat rail 25 and the support frame 26.
- the air cleaner 41 is arranged behind the second extending portion 22b of the main frame 22.
- the air cleaner 41 is supported by the seat rail 25 and the support frame 26.
- reference numeral 51 is an ignition coil connected to an ignition plug (not shown) provided in the engine 11 via a plug cord 52
- reference numeral 53 is a harness connecting the ignition coil 51 and the battery 59
- Reference numeral 54 denotes a reservoir tank that stores the hydraulic fluid of the brake device
- reference numeral 55 denotes an electrical component connected to the battery 59 via a harness 56.
- the intake passage 17 connects the air cleaner 41 and the intake portion of the engine 11. As shown in FIG. 4, the intake passage 17 extends in the front-rear direction through the left side of the second extending portion 22b of the main frame 22.
- the intake passage 17 is provided with a throttle body 42 that adjusts a passage area in the intake passage 17 according to a throttle operation, and an injector 43 that injects fuel into the intake passage 17 near a combustion chamber of the engine 11.
- reference numeral 47 is an inlet pipe to which the throttle body 42 is connected
- reference numeral 48 is an injector mounting portion to which the injector 43 is mounted
- reference numeral 49 is a purge pipe connecting portion to which the downward extending portion 32c of the purge pipe 32 is connected ( Return paths are shown respectively.
- the throttle body 42 is arranged in front of the second extending portion 22b of the main frame 22.
- the throttle body 42 includes a throttle valve, an operating drum and a potentiometer (not shown).
- the throttle valve is rotatably arranged in the intake passage 17.
- the throttle valve adjusts the passage area in the intake passage 17 according to the rotational position.
- the operating drum is connected to the operating wire.
- the operation drum rotates the throttle valve by the operation of the operation wire.
- the potentiometer detects the rotation angle of the throttle valve.
- the injector 43 is arranged in the intake passage 17 downstream of the throttle body 42 (in the vicinity of the intake portion of the engine 11).
- the injector 43 atomizes the fuel supplied from the fuel tank 5 (see FIG. 1) through a fuel pump (not shown) and injects it into the intake passage 17.
- Reference numeral 44 in the drawing denotes a fuel supply pipe connecting the fuel pump and the injector 43.
- the canister 30 (see FIG. 1) adsorbs the evaporated fuel inside the fuel tank 5 and supplies the adsorbed fuel to the intake passage 17 in the vicinity of the engine 11.
- the canister 30 contains an adsorbent such as activated carbon for adsorbing the introduced evaporated fuel.
- the canister 30 is arranged below the fuel tank 5.
- the canister 30 is arranged above the curved portion 22c of the main frame 22.
- the canister 30 is attached to the main frame 22 via a stay 35 that supports the outer peripheral surface of the canister 30.
- the bottom plate 5a of the fuel tank 5 (see FIG. 1) has a shape that swells so as to surround the canister 30, so that the canister 30 can be protected.
- the canister 30 overlaps the fuel tank 5 in a side view.
- the canister 30 is located in front of the seat 6 in a side view.
- the canister 30 is arranged in the lateral width W1 of the fuel tank 5.
- the lateral width W1 of the fuel tank 5 is a region between the left end (left side maximum bulging end) and the right end (right side maximum bulging end) of the fuel tank 5 (hereinafter also referred to as “fuel tank left/right width region W1”). .) is meant.
- the entire canister 30 is arranged in the left-right width region W1 of the fuel tank.
- the canister 30 has a cylindrical shape. As shown in FIG. 2, in the canister 30, the first end portion (right end portion) in the longitudinal direction (axial direction) of the canister 30 is located in the front, and the second end portion (left end portion in the longitudinal direction of the canister 30 is located. ) Is inclined so that it is located rearward.
- a charge pipe 31 and a purge pipe 32 are connected to the right end of the canister 30.
- the charge pipe 31 is a pipe for introducing evaporated fuel from the fuel tank 5 into the canister 30. As shown in FIG. 1, the charge pipe 31 extends from the lower right end portion of the canister 30 while bending forward and upward.
- the charge pipe 31 is connected to the right extension 31a extending from the lower right end of the canister 30 to the front right and the right end (downstream end) of the right extension 31a, and is convex to the right.
- a right curved portion 31b having a curved shape and a left extending portion 31c that extends from the front end (downstream end) of the right curved portion 31b toward the front left while bending are provided.
- the purge pipe 32 is a pipe for supplying the evaporated fuel adsorbed by the adsorbent to the vicinity of the engine 11 (see FIG. 1) in the intake passage 17. As shown in FIG. 1, the purge pipe 32 connects the canister 30 and the intake passage 17. The purge pipe 32 is arranged so as to cross the first extending portion 22 a of the main frame 22 in the up-down direction.
- the purge pipe 32 includes a front extending portion 32a that extends forward from the center of the right end of the canister 30, and a front bending portion 32b that is connected to the front end (downstream end) of the front extending portion 32a and has a forwardly convex curved shape.
- a downward extending portion 32c extending downward from the lower end (downstream end) of the front curved portion 32b is provided.
- the purge pipe 32 is arranged inside the charge pipe 31 in the vehicle width direction.
- the entire purge pipe 32 is arranged inside the right end of the right curved portion 31b of the charge pipe 31 in the vehicle width direction.
- the front extension portion 32a of the purge pipe 32 has a rear end (upstream end) of the front extension portion 32a located outward (right side) in the vehicle width direction and a front end of the front extension portion 32a. The (downstream end) is inclined so as to be positioned inward in the vehicle width direction.
- a drain pipe 33 (see FIG. 1) and an atmosphere introduction pipe (not shown) are connected to the second end (left end) in the longitudinal direction of the canister 30.
- the drain pipe 33 is a pipe for discharging water droplets or fuel accumulated in the canister 30 to the outside.
- the air introduction pipe is a pipe for introducing the atmosphere into the canister 30.
- the intake manifold 40 is arranged below the canister 30.
- the intake manifold 40 introduces evaporated fuel (hereinafter also referred to as “return fuel”) from the canister 30 into the engine 11.
- the intake manifold 40 is arranged inside the PCSV 50 in the vehicle width direction. In the front view, the intake manifold 40 is arranged at a position that overlaps with the vehicle body left-right center line CL.
- the PCSV 50 is arranged between the canister 30 and the intake manifold 40. When viewed from the front, the PCSV 50 is arranged within the left-right width W1 of the fuel tank 5. The PCSV 50 regulates the amount of return fuel from the canister 30.
- the PCSV 50 is provided in the middle of the purge pipe 32.
- the PCSV 50 contains a solenoid (not shown).
- the PCSV 50 operates a solenoid to open/close the internal passage of the purge pipe 32 in response to a command from a control device (not shown).
- the PCSV 50 introduces evaporated fuel (return fuel) from the canister 30 into the intake passage 17 in the vicinity of the engine 11 by opening the internal passage of the purge pipe 32.
- the PCSV 50 is provided with the purge pipe 32 so that the purge pipe 32 can be installed in the vertical direction of the vehicle.
- Reference numeral VL in the drawing indicates the axis of the PCSV 50 (hereinafter referred to as "valve axis").
- the valve axis VL is arranged along the first extending portion 22 a of the main frame 22.
- the pipe 45 between the PCSV 50 and the intake manifold 40 passes between the injector 43 and the throttle body coupler 46.
- the canister 30, the intake manifold 40, and the PCSV 50 are arranged between the front end and the rear end of the fuel tank 5 in a side view.
- the front end of the fuel tank 5 means the front end of a portion of the fuel tank 5 excluding the flange portion 5b (hereinafter referred to as "tank body").
- the rear end of the fuel tank 5 means the rear end of the tank body.
- Reference numeral A1 in the figure indicates a region between the front end and the rear end of the fuel tank 5 (hereinafter, also referred to as "fuel tank front-back region").
- the entire canister 30, intake manifold 40, and PCSV 50 are arranged in the front-rear region A1 of the fuel tank.
- a battery box 60 holding a battery 59 is arranged on the right side of the vehicle.
- the battery box 60 extends in the front-rear direction along the first extending portion 22a of the main frame 22.
- the battery box 60 includes a battery holder 61 that holds the battery 59, and a regulating valve holder 62 that holds the PCSV 50.
- the battery holding portion 61 overlaps the second extending portion 22b and the bending portion 22c of the main frame 22.
- the adjustment valve holding portion 62 is located between the first extending portion 22a of the main frame 22 and the upper end of the head cover 16c.
- FIG. 6 is a right side view of the battery box 60.
- reference numeral 63 is a coil holding portion that holds the ignition coil 51 (see FIG. 1 )
- reference numeral 64 is a reservoir holding portion that holds the reservoir tank 54 (see FIG. 1 )
- reference numeral 65 is an electrical component 55 (see FIG. 1 ).
- a reference numeral 66 is a harness holding portion for holding various harnesses
- a reference numeral 67 is a locking portion for locking the battery box 60 to the vehicle body frame 20 (the right seat rail 25 shown in FIG. 1).
- Reference numeral 68 denotes through holes through which bolts for fastening the battery box 60 are inserted into the vehicle body frame 20 (brackets provided on the main frame 22 shown in FIG. 1).
- the battery holding portion 61 and the adjusting valve holding portion 62 are integrally formed of the same member in the battery box 60.
- the PCSV 50 is integrally arranged in the battery box 60 together with the battery 59, whereby both reduction of members and compact arrangement can be achieved.
- the battery box 60 can further protect the throttle body 42 by overlapping with the throttle body 42 (see FIG. 5) in a side view.
- the battery holding part 61, the regulating valve holding part 62, the coil holding part 63, the reservoir holding part 64, the electrical component holding part 65, the harness holding part 66 and the locking part 67 are the same member in the battery box 60.
- the vehicle parts are collectively arranged in the battery box 60, whereby it is possible to achieve both further reduction of members and more compact arrangement.
- the regulating valve arrangement structure 29 in the above-described embodiment includes the main frame 22 extending in the vehicle front-rear direction in the motorcycle 1, the fuel tank 5 arranged above the main frame 22, and the fuel tank 5 below the fuel tank 5. Is disposed between the canister 30 and the intake manifold 40, which is disposed below the canister 30 and which introduces the return fuel from the canister 30 into the engine 11.
- the PCSV 50 is provided with a PCSV 50 that adjusts the amount of return fuel, and a purge pipe 32 that connects the canister 30 and the PCSV 50.
- the PCSV 50 is provided so that the purge pipe 32 can be arranged in the vehicle vertical direction.
- the purge pipe 32 is provided so that it can be installed in the vertical direction.
- the purge pipe 32 Since the vertical arrangement of the purge pipe 32 is allowed, the arrangement of the purge pipe 32 is simplified as compared with the case where the purge pipe 32 is arranged along the main frame 22 only in the front-rear direction. Therefore, the purge pipe 32 can be shortened.
- the connection portion of the charge pipe 31 and the connection portion of the purge pipe 32 to the canister 30 are arranged side by side in the vertical direction, so that the bent portion of each pipe can be reduced and the return fuel is introduced. Can be done easily.
- the canister 30, the intake manifold 40, and the PCSV 50 are arranged at A1 between the front end and the rear end of the fuel tank 5, and thus have the following effects.
- the canister 30, the intake manifold 40, and the purge pipe 32 can be routed in the area A1 between the front and rear of the fuel tank. Therefore, as compared with the case where at least one of the canister 30, the intake manifold 40, and the PCSV 50 is arranged outside the front end or the rear end of the fuel tank 5 in a side view, the entire pipe length can be shortened. it can.
- the PCSV 50 When viewed from the front, the PCSV 50 has the following effects by being arranged within the width W1 of the fuel tank 5 in the left-right direction. Compared with the case where the PCSV 50 is arranged outside the left and right widths of the fuel tank 5 in the front view, the purge pipe 32 can be further shortened.
- the canister 30 is arranged above the main frame 22, the engine 11 is arranged below the main frame 22, and the purge pipe 32 is arranged so as to cross the main frame 22 in the vertical direction.
- the following effects are achieved. Since the purge pipe 32 is arranged so as to traverse the main frame 22 in the vertical direction while allowing the purge pipe 32 to be arranged in the vertical direction, it is possible to further shorten the entire pipe.
- the canister 30 is arranged above the main frame 22 and the engine 11 is arranged below the main frame 22, the canister 30 and the engine 11 are separated from each other, so that the influence of the heat of the engine 11 is reduced. Can be suppressed.
- the intake manifold 40 is arranged on the inner side in the vehicle width direction with respect to the PCSV 50, and thus has the following effects. Compared with the case where the intake manifold 40 is arranged outside the PCSV 50 in the vehicle width direction, the purge pipe 32 can be made compact in the vehicle width direction.
- the PCSV 50 and the intake manifold 40 are located in the up-down direction, and the intake manifold 40 is arranged diagonally inside the PCSV 50, whereby bending of the pipe can be suppressed and the return fuel is taken in. It can be smoothly introduced into the passage 17.
- the purge pipe 32 is arranged inside the charge pipe 31 in the vehicle width direction, so that the following effects are obtained.
- the arrangement of the purge pipe 32 in the vehicle width direction can be shortened as compared with the case where the purge pipe 32 is arranged outside the charge pipe 31 in the vehicle width direction.
- the canister 30 has the following effects by overlapping with the fuel tank 5.
- the fuel tank 5 can protect the canister 30 from the side surface in the vehicle width direction.
- the battery holding portion 61 and the regulating valve holding portion 62 are described as an example in which they are integrally formed of the same member in the battery box 60, but the present invention is not limited to this.
- the battery holding part 61 and the regulating valve holding part 62 may be provided separately and independently from each other by different members.
- the holding member of the PCSV 50 may be provided separately from the battery box 60.
- the canister 30, the intake manifold 40, and the PCSV 50 are entirely arranged in the front-rear region A1 of the fuel tank in the side view, but the present invention is not limited to this.
- the canister 30, the intake manifold 40, and a part of the PCSV 50 may be disposed in the fuel tank front-rear region A1. That is, in a side view, at least a part of the canister 30, the intake manifold 40, and the PCSV 50 may be arranged in the fuel tank front-rear region A1.
- the present invention is not limited to this.
- a part of the PCSV 50 may be arranged in the left-right width region W1 of the fuel tank 5 when viewed from the front. That is, at least a part of the PCSV 50 may be arranged in the left-right width region W1 of the fuel tank 5 when viewed from the front.
- the intake manifold 40 is arranged inside the PCSV 50 in the vehicle width direction, but the present invention is not limited to this.
- the intake manifold 40 may be arranged outside the PCSV 50 in the vehicle width direction.
- the purge pipe 32 is described as being arranged on the inner side in the vehicle width direction of the charge pipe 31, but the present invention is not limited to this.
- the purge pipe 32 may be arranged outside the charge pipe 31 in the vehicle width direction.
- part of the canister 30 may overlap with the fuel tank 5 in a side view. That is, at least a part of the canister 30 may overlap the fuel tank 5 in a side view.
- the saddle-ride type vehicle includes all vehicles in which a driver rides across a vehicle body, and only motorcycles (including a motorbike and a scooter type vehicle).
- motorcycles including a motorbike and a scooter type vehicle.
- three-wheeled vehicles including front two-wheeled and rear one-wheeled vehicles in addition to front one-wheeled and rear two-wheeled vehicles
- four-wheeled vehicles are also included.
- the configurations in the above embodiments are examples of the present invention, and various modifications can be made without departing from the gist of the present invention, such as replacing the elements of the embodiments with known elements.
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- Mechanical Engineering (AREA)
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- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (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
この構成によれば、車両上方から燃料タンク、キャニスタ、調整弁、吸気装置の順に配置した構成において、調整弁は、パージ管が上下方向に配索可能に設けられていることで、以下の効果を奏する。パージ管の上下方向への配索が許容されるため、パージ管がメインフレームに沿って前後方向にのみ配索された場合と比較して、パージ管の引き回しが簡素化する。したがって、パージ管の短縮化を図ることができる。
この構成によれば、キャニスタ、吸気装置およびパージ管を燃料タンクの前後間の領域内で配索することができる。そのため、側面視で、キャニスタ、吸気装置および調整弁の少なくとも一つが燃料タンクの前端または後端よりも外方に配置された場合と比較して、全体の配管長さを短縮することができる。
この構成によれば、前面視で調整弁が燃料タンクの左右幅外に配置された場合と比較して、パージ管の更なる短縮化を図ることができる。
この構成によれば、パージ管の上下方向への配索が許容されつつ、パージ管がメインフレームを上下方向に横切るように配索されるため、配管全体の更なる短縮化を図ることができる。加えて、キャニスタがメインフレームよりも上方に配置され、エンジンがメインフレームよりも下方に配置されていることで、キャニスタとエンジンとが離れるため、エンジンの熱の影響を抑えることができる。
この構成によれば、吸気装置が調整弁よりも車幅方向外側に配置された場合と比較して、パージ管を車幅方向でコンパクト化することができる。
この構成によれば、パージ管がチャージ管よりも車幅方向外側に配置された場合と比較して、パージ管の車幅方向の配索を短くすることができる。
この構成によれば、燃料タンクによってキャニスタを車幅方向側面から保護することができる。
図1は、鞍乗型車両の一例としての自動二輪車1を示す。図1を参照し、自動二輪車1は、前輪(不図示)と、後輪4と、を備える。前輪は、ハンドル2によって操向される。後輪4は、動力源を含むパワーユニット10によって駆動される。以下、自動二輪車を単に「車両」ということがある。図中符号20は、車両の骨格となる車体フレームを示す。
サポートフレーム26は、ピボットフレーム24とシートレール25とを連結している。サポートフレーム26は、ピボットフレーム24からシートレール25に向けて斜め後上方へ延びるように左右一対設けられている。
図中符号29は、車両において、ソレノイドを内蔵するパージコントロールバルブ(以下「PCSV」ともいう。)を含む調整弁配置構造を示す。調整弁配置構造29は、メインフレーム22、燃料タンク5、キャニスタ30、インテークマニホールド40(吸気装置)、PCSV50(調整弁)およびパージ管32を備える。
スロットルバルブは、吸気通路17内に回動可能に配置されている。スロットルバルブは、回動位置に応じて吸気通路17内の通路面積を調整する。
操作ドラムは、操作ワイヤに接続されている。操作ドラムは、操作ワイヤによる操作によってスロットルバルブを回動させる。
ポテンショメータは、スロットルバルブの回動角度を検出する。
チャージ管31は、蒸発燃料を燃料タンク5からキャニスタ30内に導入するための配管である。図1に示すように、チャージ管31は、キャニスタ30の右端下部から前上方に向けて屈曲しつつ延びている。
ドレン管33は、キャニスタ30内に滞留した水滴または燃料を外部に排出するための配管である。
大気導入管は、キャニスタ30内に大気を導入するための配管である。
側面視で、バッテリボックス60は、スロットルボディ42(図5参照)と重なることで、スロットルボディ42をより一層保護することができる。
本実施形態によれば、車両上方から燃料タンク5、キャニスタ30、PCSV50、インテークマニホールド40の順に配置した構成において、PCSV50は、パージ管32が上下方向に配索可能に設けられていることで、以下の効果を奏する。パージ管32の上下方向への配索が許容されるため、パージ管32がメインフレーム22に沿って前後方向にのみ配索された場合と比較して、パージ管32の引き回しが簡素化する。したがって、パージ管32の短縮化を図ることができる。
本実施形態では、キャニスタ30に対するチャージ管31の接続部およびパージ管32の接続部が上下方向に並んで配置されていることで、各配管の屈曲部を少なくすることができ、戻し燃料の導入を容易に行うことができる。
本実施形態では、PCSV50とインテークマニホールド40とは上下方向に位置し、かつ、インテークマニホールド40は、PCSV50の斜め内側に配置されていることで、配管が屈曲することを抑制でき、戻し燃料を吸気通路17にスムーズに導入することができる。
上記実施形態では、バッテリ保持部61および調整弁保持部62が、バッテリボックス60において同一の部材で一体に形成されている例を挙げて説明したが、これに限らない。例えば、バッテリ保持部61および調整弁保持部62は、異なる部材で別個独立に設けられていてもよい。例えば、PCSV50の保持部材が、バッテリボックス60とは別個独立に設けられていてもよい。
そして、上記実施形態における構成は本発明の一例であり、実施形態の構成要素を周知の構成要素に置き換える等、本発明の要旨を逸脱しない範囲で種々の変更が可能である。
5 燃料タンク
11 エンジン
22 メインフレーム
29 調整弁配置構造
30 キャニスタ
31 チャージ管
32 パージ管
40 インテークマニホールド(吸気装置)
50 PCSV(調整弁)
A1 燃料タンク前後間領域(燃料タンクの前端と後端との間)
W1 燃料タンク左右幅領域(燃料タンクの左右幅内)
Claims (7)
- 鞍乗型車両(1)において車両前後方向に延びるメインフレーム(22)と、
前記メインフレーム(22)の上方に配置された燃料タンク(5)と、
前記燃料タンク(5)の下方に配置されたキャニスタ(30)と、
前記キャニスタ(30)の下方に配置され、前記キャニスタ(30)からの戻し燃料をエンジン(11)へ導入する吸気装置(40)と、
前記キャニスタ(30)と前記吸気装置(40)との間に配置され、前記キャニスタ(30)からの前記戻し燃料の量を調整する調整弁(50)と、
前記キャニスタ(30)と前記調整弁(50)とを接続するパージ管(32)と、を備え、
前記調整弁(50)は、前記パージ管(32)が車両上下方向に配索可能に設けられていることを特徴とする調整弁配置構造。 - 側面視で、前記キャニスタ(30)、前記吸気装置(40)および前記調整弁(50)は、前記燃料タンク(5)の前端と後端との間(A1)に配置されていることを特徴とする請求項1に記載の調整弁配置構造。
- 前面視で、前記調整弁(50)は、前記燃料タンク(5)の左右幅内(W1)に配置されていることを特徴とする請求項1または2に記載の調整弁配置構造。
- 前記キャニスタ(30)は、前記メインフレーム(22)よりも上方に配置され、
前記エンジン(11)は、前記メインフレーム(22)よりも下方に配置され、
前記パージ管(32)は、前記メインフレーム(22)を上下方向に横切るように配置されていることを特徴とする請求項1から3のいずれか一項に記載の調整弁配置構造。 - 前記吸気装置(40)は、前記調整弁(50)よりも車幅方向内側に配置されていることを特徴とする請求項1から4のいずれか一項に記載の調整弁配置構造。
- 前記パージ管(32)は、チャージ管(31)よりも車幅方向内側に配置されていることを特徴とする請求項5に記載の調整弁配置構造。
- 側面視で、前記キャニスタ(30)は、前記燃料タンク(5)と重なることを特徴とする請求項1から6のいずれか一項に記載の調整弁配置構造。
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JP2013067275A (ja) * | 2011-09-22 | 2013-04-18 | Honda Motor Co Ltd | 鞍乗型車両のキャニスタ配置構造 |
WO2015045159A1 (ja) * | 2013-09-30 | 2015-04-02 | 本田技研工業株式会社 | 鞍乗型車両 |
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JP2013067275A (ja) * | 2011-09-22 | 2013-04-18 | Honda Motor Co Ltd | 鞍乗型車両のキャニスタ配置構造 |
WO2015045159A1 (ja) * | 2013-09-30 | 2015-04-02 | 本田技研工業株式会社 | 鞍乗型車両 |
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