CN116529152A

CN116529152A - Saddle type vehicle

Info

Publication number: CN116529152A
Application number: CN202180078371.XA
Authority: CN
Inventors: V·拉梅什; D·K·阿尔; V·M·R·卡尔南
Original assignee: TVS Motor Co Ltd
Current assignee: TVS Motor Co Ltd
Priority date: 2020-11-23
Filing date: 2021-03-26
Publication date: 2023-08-01
Also published as: MX2023005845A; WO2022107155A1; CO2023006577A2

Abstract

A saddle-type vehicle (100) includes an evaporative emission control subassembly (400) housed within a fuel tank interior (335) of a fuel tank assembly (120). The evaporative emission control subassembly (400) includes a canister (305) and one or more conditioning devices (300); and a plurality of hoses (345) connecting the tank (305) to the one or more adjustment devices (300). The accommodation of the evaporative emission control subassembly (400) including the canister purge valve (300) on at least one of the first area (a) and the second area (B) of the fuel tank interior (335), other than the area accommodating the fuel pump module (340), provides for improved serviceability and improved layout packaging of the canister purge valve (300).

Description

Saddle type vehicle

Technical Field

The subject matter described herein relates generally to saddle-type two-or three-wheeled vehicles, and in particular, but not exclusively, to a fuel tank assembly for saddle-type vehicles.

Background

In general, the canister purge valve (canister purge valve) is an important part of the evaporative emission control system (EVAP) of a vehicle. The EVAP system seals the fuel system of the vehicle and prevents fuel vapors from escaping to the atmosphere. This prevention of fuel vapor escape is accomplished by capturing fuel vapor from the fuel tank and temporarily storing it in the canister to absorb harmful fuel vapor. During engine operation under certain conditions, fuel vapors are purged from the canister and combusted within the engine. The canister purge valve precisely controls the amount of fuel vapor purged from the canister.

In modern vehicles, the purge valve is an electrically operated solenoid controlled by engine software. When the engine is shut down, the purge valve is closed. When the engine is running and fully warmed up, the engine software gradually opens the purge valve, causing a quantity of fuel vapor to move out of the canister and burn in the engine. The purge flow is monitored by a plurality of sensors. If the purge flow is less than or greater than the expected flow under some conditions, the computer will illuminate a "check engine" light.

Drawings

The detailed description will be described with reference to embodiments of a two-wheeled vehicle and accompanying drawings. The same numbers are used throughout the drawings to reference like features and components.

Fig. 1 illustrates a left-hand side view of a two-wheeled vehicle when viewed from the left-hand side of a rider while the rider is in a riding position, in accordance with an embodiment of the present invention.

Fig. 2 illustrates a perspective view of a fuel tank assembly mounted on a vehicle frame assembly according to an embodiment of the present invention.

Fig. 3a to 3b illustrate perspective views of a fuel tank assembly mounted on a frame assembly of a vehicle according to an embodiment of the present invention.

Fig. 3c to 3h illustrate a fuel tank assembly of a vehicle according to an embodiment of the present invention. Fig. 3d illustrates a rear perspective view of a fuel tank assembly of a vehicle according to an embodiment of the present invention. Fig. 3e illustrates a perspective view of the installation of a canister purge valve in a metal fuel tank assembly of a vehicle according to an embodiment of the invention.

Fig. 3 f-3 g illustrate perspective views of a fuel tank assembly according to an embodiment of the present subject matter. FIG. 3g illustrates a canister purge valve and positioning of a canister on a frame assembly of a vehicle according to an embodiment of the present subject matter.

Fig. 4 a-4 f illustrate various perspective views of a fuel tank assembly according to alternative embodiments of the present subject matter. FIG. 4f illustrates the positioning of a canister purge valve and canister on a frame assembly of a vehicle according to an embodiment of the present subject matter.

Fig. 5 a-5 f illustrate various perspective views of a fuel tank assembly according to another alternative embodiment of the present subject matter.

Detailed Description

Generally, in saddle type vehicles, an air cleaner is located in an area surrounded by a plurality of frame members of the vehicle, and a tank is disposed below the air cleaner. The purge valve tube is connected to the canister and the canister is further connected to the carburetor through the canister purge valve.

As with several other automotive parts, over time, dust and dirt can clog the canister, and such clogging can further lead to canister purge valve rupture and, in some cases, purge valve failure. Such tank purge valve failure negatively affects vehicle emissions output levels. Therefore, it is a requirement for the canister purge valve to be easily assembled and disassembled so that the canister purge valve can be replaced when necessary. Further, recently, due to recent progress, the canister purge valve is electrically operated and operated by using an Electronic Control Unit (ECU) signal; this in turn increases the complexity of the system in terms of its construction and installation, and thus requires a separate installation for the canister purge valve. Furthermore, from the safety point of view, in particular for two-wheeled saddle-type vehicles that are prone to overturning, it is necessary to arrange another regulating device, called a roll-over valve, to address the possibility of fuel spillage and the potential fire hazard when the vehicle falls or overturns. As a result, the separate configuration of additional regulating devices such as tank purge valves or roll-over valves makes it difficult for the design of the vehicle to achieve a compact layout of the vehicle in terms of packaging while still ensuring ease of assembly and ease of maintenance. In such known technology, the position of the canister purge valve is disclosed in front of the air cleaner.

Some known techniques disclose a canister in a recess formed on the interior of the fuel tank between the main tube of the frame structure and the canister surface for receiving the canister. Further, such known techniques also disclose placing the canister purge valve under the canister and mounted on the frame member. In this case, the canister accommodated inside the fuel tank is supported by a plurality of seat rails, and a bracket of a predetermined shape, for example, a "C" shape, is attached to such plurality of seat rails, facilitating the installation of the canister.

Other known techniques disclose the placement of a canister purge valve vertically below the canister. Such a position is primarily used to prevent fuel vapor from escaping the canister under full load conditions. In such cases, however, it is often disadvantageous to keep the canister purge valve under the canister. This is because when the canister purge valve is placed under the canister, the canister purge valve is typically kept in a closed state and is activated only upon receipt of a signal from the ECU. Therefore, when the canister purge valve is in a closed state, fuel vapor discharged from the canister tends to remain in a hose connecting the canister and the canister purge valve placed vertically downward. And in some cases where the ambient temperature is reduced, the fuel vapor in the hose condenses and converts to liquid fuel, which remains in the hose.

Further, when the ECU opens the canister purge valve to purge steam, since the canister purge valve is placed vertically downward from the canister and since the canister purge valve is subjected to the action of gravity, condensed liquid fuel remaining in a hose connecting the canister and the canister purge valve enters the canister purge valve and may leak into an intake port of the engine, which is detrimental to the performance of the engine. Therefore, when the canister purge valve is opened by the ECU, it is necessary to determine the proper position of the canister purge valve in the vicinity of the canister in order to avoid the liquid fuel remaining or condensed in the hose connecting the canister and the canister purge valve from entering the canister purge valve.

Other known techniques disclose mounting a canister purge valve to a frame structure. Because the canister purge valve is an integral component of the evaporative emission control subsystem, which is a subsystem of the fuel system of the vehicle, mounting the EVAP component of the fuel tank assembly to the frame structure requires disassembly of the component during assembly and disassembly of the fuel tank assembly. Such disassembly becomes cumbersome and time consuming. Furthermore, frequent installation and disassembly of components such as the canister purge valve may also result in an undesirable loss of reliability of the vehicle fuel system.

Therefore, there is a need to eliminate the necessity of installing evaporative emission control subsystems including canister purge valves, roll-over valves in the vicinity of the fuel tank assembly; and also to configure a suitably compact arrangement for mounting one or more conditioning subsystems, including canister purge valves, in proximity to the fuel tank assembly to overcome the above-described problems.

The present subject matter has been designed in view of the above-mentioned circumstances and to solve other problems of the prior art.

The present subject matter relates to a saddle-type vehicle that includes a head pipe, a main pipe extending rearward from the head pipe, and a fuel tank assembly mounted above the main pipe. The fuel tank assembly includes a fuel tank interior that encloses at least a portion of the main pipe, the fuel tank interior further including a first region disposed on a left side of the main pipe and a second region disposed on a right side of the main pipe. An evaporative emission control subassembly is housed within the fuel tank interior, wherein the evaporative emission control subassembly includes a canister, one or more conditioning devices, and a plurality of hoses connecting the canister to the one or more conditioning devices.

According to one aspect of the present subject matter, the one or more regulating devices include a canister purge valve.

According to another aspect of the present subject matter, the one or more regulating devices include a roll-over valve.

According to another aspect of the present subject matter, an evaporative emission control subassembly is disposed on one of a first region and the second region of the interior of the fuel tank. At least one of the first region and the second region inside the fuel tank accommodates a fuel pump module. The evaporative emission control subassembly is received on at least one of the first and second areas of the interior of the fuel tank that is different from the area receiving the fuel pump module.

According to another aspect of the present subject matter, a canister is mounted to a fuel tank interior of a vehicle.

According to another aspect of the present subject matter, the canister purge valve is mounted substantially above the canister, away from ground level, when viewed from a side view of the vehicle.

According to another aspect of the present subject matter, one or more conditioning devices are mounted inside the fuel tank.

According to an embodiment of the present subject matter, the canister purge valve is an electronic purge control valve.

According to another embodiment of the present subject matter, the canister is mounted between the canister purge valve and the vehicle engine.

According to another embodiment of the present subject matter, the canister is disposed in the second zone and the purge valve is disposed in the first zone.

According to another embodiment of the present subject matter, both the canister and the purge valve are disposed in the second zone.

According to another embodiment of the present subject matter, the canister is disposed in the second region and the purge valve is disposed near a longitudinal centerline of the vehicle.

According to another embodiment of the present subject matter, the canister and the diverter valve are disposed in the second zone.

According to another embodiment of the present subject matter, the tank is inclined substantially downward with respect to the ground.

In accordance with efficacy, the present subject matter provides an easily accessible canister purge valve and electrical coupler therefor.

According to another embodiment of the present subject matter, the canister purge valve mounting bracket is provided with an error proofing feature. Depending on the efficacy, the error proofing feature enables error-free assembly of the canister purge valve and also functions as an anti-rotation feature.

According to the efficacy of the present subject matter, the configuration of the evaporative emission control subassembly including the canister purge valve over at least one of the first area and the second area (other than the area housing the fuel pump module) of the interior of the fuel tank improves the applicability of the canister purge valve.

In accordance with another efficacy of the present subject matter, the layout configuration of the evaporative emission control subassembly including the canister purge valve on at least one of the first area and the second area (other than the area housing the fuel pump module) inside the fuel tank provides for improved layout packaging of the canister purge valve.

In accordance with another efficacy of the present subject matter, the layout design of the evaporative emission control subassembly including the canister purge valve on at least one of the first area and the second area (other than the area housing the fuel pump module) of the interior of the fuel tank eliminates the ingress of condensed fuel vapor into the purge valve.

According to another efficacy of the present subject matter, the configuration of the evaporative emission control subassembly including the canister purge valve over at least one of the first area and the second area of the interior of the fuel tank achieves an overall reduction in vehicle weight due to the nominal reduction in fuel tank volume. Such nominal reduction in fuel tank volume is achieved in order to encapsulate all components of the evaporative emission control subsystem within the fuel tank assembly.

According to another efficacy of the present subject matter, the packaging of the evaporative emission control subassembly including the canister purge valve in an area other than the area where the fuel pump module is located ensures that the canister purge valve is mounted remotely from the engine, which prevents the purge valve from being undesirably heated by the heat of the engine.

Exemplary embodiments of features relating to the foregoing advantages and other advantages of the present subject matter will be described in detail below with reference to the accompanying drawings. Various aspects of the different embodiments of the invention will become apparent from the following description set forth below. Rather, the following description provides convenient illustrations for implementing exemplary embodiments of the invention. It should be noted that the description and drawings merely illustrate the principles of the present subject matter. Various arrangements may be devised which, although not explicitly described or shown herein, incorporate the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof. Further, it is noted that the terms "upper", "lower", "right", "left", "front", "forward", "rearward", "downward", "upward", "top", "bottom", "exterior", "interior" and the like are used herein based on the illustrated state or standing state of the two-wheeled vehicle on which the driver is riding. Further, an arrow in the upper right corner of the drawing in the drawing depicts a direction relative to the vehicle, wherein an arrow F indicates a forward direction, an arrow R indicates a backward direction, an arrow Up indicates an upward direction, an arrow Dw indicates a downward direction, an arrow RH indicates a right side, and an arrow LH indicates a left side. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

Fig. 1 illustrates a side view of a vehicle 100 according to an embodiment of the invention. The vehicle 100 includes a frame assembly 200 (shown in fig. 2) to support the various portions of the vehicle 100. In an upper portion of the frame assembly 200, the handlebar assembly 115 is rotatably integrally connected to a steering shaft (not shown). The handlebar assembly 115 is used to steer the vehicle 100 and is connected to the front wheels 185 via a steering shaft (not shown) and a front fork assembly (not shown). An upper portion of the front wheel 185 is covered by a front fender 190, the front fender 190 preventing mud and water from being deflected toward a steering system (not shown). In addition, the front fork assembly 195 is supported on the front fender 190 by a bracket fender (not shown).

In a front portion of the frame assembly 200 (shown in FIG. 2), the fuel tank assembly 120 is disposed immediately behind the handlebar assembly 115 and above a first power source (e.g., the engine assembly 180). The seat assembly 125 is positioned behind the fuel tank assembly 120. The seat assembly 125 includes a front rider seat portion and a rear rider seat portion. The rear seat rider seat portion is disposed at a rear portion of the frame assembly 200 (shown in fig. 2), wherein the rear portion of the frame assembly 200 (shown in fig. 2) is covered by a tail cap assembly (not labeled).

For safety of a rider and compliance with traffic regulations, a head lamp assembly 105 including a head lamp 110 and a head pilot lamp 140a is provided in a front portion of the vehicle 100. On the rear portion of the two-wheeled vehicle 100, a tail light (not labeled) and a rear indicator light 140b are provided on the rear portion of the tail cap assembly 130. Above the tail cap assembly 130 and rearward of the seat assembly 125, a rear seat handle 135 is provided for grasping by a rear seat rider.

The suspension system is provided for comfortable steering of the two-wheeled vehicle 100 on the road. The front suspension assembly 195 serves as a rigid component of the front portion of the vehicle 100, just like the frame assembly 200. The front suspension assembly 195, which is clamped to a head pipe (not shown) by an upper bracket (not shown) and a lower bracket (not shown), can be moved leftward and rightward. In addition, a rear suspension system 160 as a hydraulic damping device is connected to the frame assembly 200 (shown in fig. 2). The rear suspension system 160 includes at least one rear suspension 160, and the rear suspension 160 is preferably disposed at the center of the longitudinal middle plane of the vehicle 100. However, in the vehicle 100 having two rear suspensions, the two rear suspensions may be provided on the left and right sides of the vehicle 100, respectively.

A first power source, such as engine assembly 180, is mounted to a front lower portion of frame assembly 200 (shown in fig. 2) by an engine mounting bracket (not shown). The engine assembly 180 is partially covered by an engine cover 175 on the underside of the engine assembly 180. The engine assembly 180 is equipped with an exhaust system that includes an exhaust pipe (not labeled) connected to the engine assembly 180 and a muffler assembly 155 connected to the exhaust pipe. The muffler assembly 155 extends rearward along the right side of the rear wheel 150.

Further, a swing arm (not shown) extending rearward is swingably connected to a lower rear portion of the vehicle 100. The rear wheel 150 is rotatably supported at the rear end of a swing arm (not shown). Power from the engine assembly 180 is transmitted to the rear wheels 150 through a power drive mechanism (e.g., a drive train) to drive and rotate the rear wheels 150. The center stand 165 is disposed between the front wheels 185 and the rear wheels 150 for parking the vehicle 100.

A rear fender 145 for covering the upper side of the rear wheel 150 is mounted to the rear portion of the vehicle 100 to prevent mud and water splashed by the rotating rear wheel 150 from entering the muffler assembly 155, the engine assembly 180 and other parts in the vicinity. To enhance the overall aesthetics of the vehicle 100 and to prevent unwanted foreign particles from entering parts of the vehicle 100, a plurality of rear covers (not labeled) are attached to the rear portion of the frame assembly 200 (shown in fig. 2).

The area under the seat assembly 125 and the fuel tank assembly 120 of the vehicle 100 is covered on both sides by the cover frame assembly 170. The cover frame assembly 170 includes one or more side covers. XX' represents the longitudinal direction of the vehicle length direction.

Fig. 2 illustrates a perspective view of the fuel tank assembly 120 mounted on the frame assembly 200 of the vehicle 100, according to an embodiment of the present invention. The vehicle 100 includes a head pipe 200a and a main pipe 200b extending rearward from the head pipe 200a, and a fuel tank assembly 120 mounted above the main pipe 200 b.

The downward portion 120a of the fuel tank assembly 120 is mounted on the front portion 200c of the frame assembly 200. The rear portion 120d of the fuel tank assembly 120 is secured to the frame assembly 200 with the aid of a plurality of visible fasteners 205, the plurality of visible fasteners 205 being referred to herein as fastener fuel tank rear mounts 205. The front portion 200c of the fuel tank assembly 120 is disposed just behind the head pipe 200a on the main pipe 200b of the frame assembly 200. The upper portion 120b of the fuel tank assembly 120 has an opening that serves as an inlet for inserting a fuel dispenser for filling the fuel tank assembly 120 with fuel. The opening is covered by a cover, referred to herein as a fuel cap assembly 210. The fuel tank cap assembly 210 is designed such that it can be locked by a locking mechanism to avoid fuel theft when the vehicle 100 is parked or fuel spillage even when the vehicle is turned sideways.

Fig. 3a to 3b illustrate perspective views of the fuel tank assembly 120 mounted on the frame assembly 200 of the vehicle 100 according to an embodiment of the present invention. The downward portion 120a (shown in fig. 2) of the fuel tank assembly 120 is mounted on the front portion 200c of the frame assembly 200. The front portion 200c (shown in fig. 2) of the fuel tank assembly 120 is disposed just behind the head pipe 200a, on the main pipe 200b of the frame assembly 200. The engine assembly 180 is mounted below the fuel tank assembly 120. Throttle body 325 and air cleaner 330 are positioned adjacent to engine assembly 180 and below fuel tank assembly 120. Throttle body 325 is a portion of the air intake system of vehicle 100 that controls the amount of air flowing into engine assembly 180 in response to driver accelerator or pedal input.

The air filter 330 filters out all unwanted particles in the air prior to the air entering the engine assembly 180, allowing only clean, clean air to enter for better combustion, thereby improving efficiency and delivering power smoothly to the vehicle 100. Fig. 3b shows a partial cut-out window on the fuel tank showing the evaporative emission control subassembly 400 positioned inside the fuel tank assembly 120.

The evaporative emission control subassembly 400 includes a canister 305, one or more conditioning devices 300 (as shown in FIG. 3 c), and a plurality of hoses 345 (as shown in FIG. 3 c) connecting the canister 305 to the one or more conditioning devices 300. The regulating device 300 includes a canister purge valve 300 or a roll-over valve. According to one embodiment, canister purge valve 300 is an electronic purge control valve.

Fig. 3c to 3h illustrate a fuel tank assembly 120 of the vehicle 100 according to an embodiment of the present invention. The interior portion of the fuel tank assembly 120, referred to herein as the fuel tank interior 335, includes a fuel pump assembly 340 and an evaporative emission control subassembly 400. The fuel tank interior 335 encloses at least a portion of the main tube 200b (shown in phantom in fig. 3 b). The fuel tank interior 335 also includes a first region a disposed on the left side of the main tube 200B and a second region B disposed on the right side of the main tube 200B when viewed from a seated rider. One or more of the regions, namely the first region a and the second region B, are defined by a longitudinal line PP' passing through the lateral center of the fuel tank interior 335, the longitudinal line also passing through the center of the main tube 200B. With respect to the longitudinal line PP ', the first region a is disposed on the left side of the longitudinal line PP ' and the second region B is disposed on the right side of the longitudinal line PP '. The evaporative emissions control subassembly 400 includes a canister 305, a canister purge valve 300, a plurality of hoses 345, and a check valve 355.

According to the present embodiment, the canister 305 and the check valve 355 of the evaporative emission control subassembly 400 are disposed in the first area a; and the tank purge valve 300 and a plurality of hoses 345 connecting the tank purge valve 300 and the tank 305 are disposed on the second region B. The fuel pump module 340 is disposed in the second region B near 300. The coupler 350 is disposed along the longitudinal line PP' such that it is located in the vicinity of both the tank 305 and the tank purge valve 300.

Typically, the air inlet of the air cleaner is provided with an additional cover to prevent water and dust from entering the air cleaner of the vehicle, and it is mounted on the frame bracket by mounting screws and means for securing the wire connector in place. Typically, in motorcycles and scooter, the fuel filter is assembled inside the fuel tank assembly 120, and the fuel tank assembly 120 is further integrated with the fuel pump module 340 to enable timely screening of dirt and dust particles present in the fuel. In this case, however, the level of filtration efficiency is low, and because there is no filtration outside the fuel line up to the intake system, some dust particles are likely to enter the engine assembly. Thus, the external fuel filter is sometimes disposed in a pocket that is present on an inner tank (the inner tank is present on the back of the fuel pump module 340), and a bracket is provided in the tank for mounting the fuel filter using a plastic strap.

According to another embodiment, the orientation of the fuel pump module 340 is changed from 0 degrees to 8 degrees relative to the bottom of the fuel tank to achieve the desired clearance of the float due to the design change of the fuel tank. Typically in motorcycles (where the fuel tank is fully exposed), the fuel pump module is mounted under the fuel tank. The fuel pump module 340 rotates 8 degrees due to the gradient of dead volume and in order to maintain sufficient clearance between the float and the interior of the fuel tank. This rotation of the fuel pump module 340 reduces the minimum indicated volume required.

Thus, according to the present embodiment, canister purge valve 300 is integrated with fuel tank assembly 120. Such a layout configuration facilitates assembly and disassembly of the fuel tank assembly 120 and evaporative emissions subsystem 400 components together. Thus, the assembly time is greatly reduced.

Typically, the fuel pump module 340 has a higher amount of fuel on one side than the other. Thus, configuring the evaporative emissions control subsystem 400 on the other side opposite the fuel pump module 340 side ensures that the overall center of gravity of the vehicle 100 is maintained near the centerline PP', which is desirable for good vehicle handling performance.

Fig. 3d illustrates a front view of the fuel tank assembly 120 of the vehicle 100 according to an embodiment of the present invention. The canister purge valve 300 is positioned laterally opposite the canister 305 across the longitudinal centerline PP'. The longitudinal centerline PP' exists substantially in the mid-plane of the fuel tank interior 335 of the fuel tank assembly 120. The canister is positioned in the first zone a and the canister purge valve 300 is positioned in the second zone B. In the metal fuel tank assembly 120, the canister purge valve 300 is positioned above the throttle body 325 (shown in FIG. 3 b) and above the canister 305 and laterally opposite the canister 305 and at least partially behind the cylinder head (not shown) and in front of the air cleaner 330 (shown in FIG. 3 b). A plurality of hoses 345 are connected to the canister purge valve 300.

Fig. 3e illustrates a perspective view of the installation of canister purge valve 300 in metal fuel tank assembly 120 of vehicle 100 according to an embodiment of the invention.

According to an embodiment, canister purge valve 300 is secured to metallic fuel tank interior 335. The metal bracket, referred to herein as canister purge valve mounting bracket 310, is welded to the fuel tank interior 335 of the fuel tank assembly 120, and the canister purge valve 300 is fastened to the canister purge valve mounting bracket 310 by one or more fasteners 315. Thus, by mounting the purge valve to the inner surface of the fuel tank, the need to separately mount the canister purge valve 300 to the frame assembly 200 is eliminated.

In addition, the canister 305 is mounted to the fuel tank interior surface 335 without the need for an additional set of mounting structures (not shown) to separately support the canister 305 to the frame assembly 200.

Fig. 3 f-3 g illustrate perspective bottom side and side views of a fuel tank assembly 120 according to another embodiment of the present subject matter. The canister 305 is mounted on the first area a, and the canister purge valve 300 and the fuel pump module 340 are mounted in the second area B of the fuel tank assembly 120. Fig. 3g illustrates the positioning of the canister purge valve 300 and canister 305 on the frame assembly 200 of the vehicle 100 according to an embodiment of the invention.

Fig. 4 a-4 f illustrate bottom, front, side and perspective views of a fuel tank assembly 120 according to an alternative embodiment of the present invention. According to the present embodiment, the canister purge valve 300 is positioned substantially above and in front of the canister 305. In the fuel tank assembly 120, the canister purge valve 300 is positioned above a cylinder head (not shown); and canister 305 and throttle body 325 are placed in front of air cleaner 330. Fig. 4f illustrates the positioning of the canister purge valve 300 and canister 305 on the frame assembly 200 of the vehicle 100 according to an embodiment of the invention.

According to an alternative embodiment, the canister purge valve 300 is mounted substantially above the canister 305, away from ground level, from a side view of the vehicle 100.

Fig. 5 a-5 f illustrate side, bottom and perspective views of a fuel tank assembly 120 according to another alternative embodiment of the present subject matter. According to the present embodiment, the canister purge valve 300 is positioned at the rear side of the canister 305 and substantially along the center line PP' of the vehicle 100. In the fuel tank assembly 120, the canister purge valve 300 is positioned behind the throttle body 325, and substantially the rear of the canister and the centerline PP' of the vehicle 100. The tank 305 is positioned in the second zone B and at least a portion of the tank purge valve 300 is positioned on the first zone a. Fig. 5f illustrates the positioning of canister purge valve 300 and canister 305 on frame assembly 200 of vehicle 100 in accordance with an embodiment of the present subject matter.

According to an alternative embodiment, at least a portion of the evaporative emission control subassembly 400 is disposed on one of the first area A and the second area B of the fuel tank interior 335.

According to an alternative embodiment, at least one of the first region A and the second region B of the fuel tank interior 335 houses a fuel pump module 340.

According to an alternative embodiment, the canister 305 is mounted between the canister purge valve 300 and the engine assembly 180.

According to an alternative embodiment, the canister 305 is disposed in the second region B, and the canister purge valve 300 is disposed along the longitudinal centerline PP' of the vehicle 100.

According to an alternative embodiment, the tank 305 is disposed on the second region B, and the roll-over valve is disposed along the longitudinal centerline PP' of the vehicle 100.

According to an alternative embodiment of saddle-type vehicle 100, tank 305 is disposed substantially vertically inclined (as shown in fig. 4 e) with respect to longitudinal center line PP' of vehicle 100.

According to an alternative embodiment of saddle type vehicle 100, canister purge valve mounting bracket 310 is provided with error proofing features in the form of two mounting devices, one having a different geometric profile than the other, thereby eliminating errors in improper assembly of the canister purge valve.

Many modifications and variations of the present subject matter are possible in light of the above teachings. Therefore, within the scope of the claims of the present subject matter, the present disclosure may be practiced other than as specifically described.

List of reference numerals

100: vehicle with a vehicle body having a vehicle body support

105: head lamp assembly

110: front lighting lamp

115: handlebar assembly

120: fuel tank assembly

120a: downward part

120b: upper part

200c: front part

120d: rear part

125: seat assembly

130: tail cover assembly

135: rear seat handle

140a: front indicator light

140b: rear indicator light

145: rear mudguard

150: rear wheel

155: muffler assembly

160: rear suspension system

165: central standing leg

170: cover frame assembly

175: engine cover

180: engine assembly

185: front wheel

190: front mudguard

195: front suspension

200: frame assembly

200a: head pipe

200b: main pipe

205: fastener fuel tank rear mount

210: fuel tank cap assembly

300: tank purifying valve

305: tank

310: tank purifying valve mounting bracket

315: fastening piece

320: engine cylinder cover

325: throttle valve body

330: air filter

335: inside the fuel tank

340: fuel pump module

345: flexible pipe

350: coupling device

355: check valve

400: evaporative emission control subassembly

A: first region

B: second region

Claims

1. A saddle-type vehicle (100), comprising:

a head pipe (200 a);

a main pipe (200 b) extending rearward from the head pipe (200 a); and

a fuel tank assembly (120) mounted above the main pipe (200 b);

wherein,,

the fuel tank assembly (120) includes a fuel tank interior (335) enclosing at least a portion of the main tube (200 b); the fuel tank interior (335) includes a first region (a) disposed on a left side of the main pipe (200B) and a second region (B) disposed on a right side of the main pipe (200B);

wherein,,

an evaporative emission control sub-assembly (400) is disposed within the fuel tank interior (335);

wherein,,

the evaporative emission control subassembly (400) includes a canister (305) and one or more conditioning devices (300); and a plurality of hoses (345) connecting the tank (305) to the one or more adjustment devices (300).

2. The saddle-type vehicle (100) according to claim 1, wherein said one or more regulating devices (300) comprise a tank purge valve (300).

3. The saddle-type vehicle (100) according to claim 1, wherein said one or more adjustment devices (300) comprise a roll-over valve.

4. The saddle type vehicle (100) according to claim 2, wherein the tank purge valve (300) is an electronic purge control valve.

5. The saddle-type vehicle (100) according to claim 1, said evaporative emission control sub-assembly (400) being at least partially disposed on one of said first area (a) and said second area (B) of said fuel tank interior (335).

6. The saddle-type vehicle (100) according to claim 1, wherein at least one of the first region (a) and the second region (B) of the fuel tank interior (335) accommodates a fuel pump module (340).

7. The saddle-type vehicle (100) according to claim 1 or claim 6, wherein said evaporative emission control subassembly (400) is mainly arranged in at least one of said first area (a) and said second area (B) of said fuel tank interior (335), which is an area different from an area housing said fuel pump module (340).

8. The saddle-type vehicle (100) according to claim 1, said canister being mounted inside said fuel tank.

9. The saddle-type vehicle (100) according to claim 1, wherein the one or more adjustment devices (300) are mounted to the fuel tank interior (335).

10. The saddle type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank purge valve (300) is mounted substantially above the tank (305) away from ground level when seen from a side view of the vehicle (100).

11. The saddle type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank (305) is mounted between the tank purge valve (300) and the engine assembly (180).

12. The saddle type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank (305) is provided on the second zone (B) and the tank purge valve (300) is provided on the first zone (a).

13. The saddle type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank (305) and the tank purge valve (300) are provided on the second region (B).

14. Saddle-type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank (305) is arranged on the second zone (B) and the tank purge valve (300) is arranged along a longitudinal centre line (PP') of the vehicle (100).

15. A saddle-type vehicle (100) according to claim 1 or claim 3, wherein said tank (305) and said overturning valve are provided on said second zone (B).

16. Saddle-type vehicle (100) according to claim 1 or claim 3, wherein said tank (305) is arranged on said second zone (B) and said overturning valve is arranged along a longitudinal centre line (PP') of said vehicle (100).

17. Saddle-type vehicle (100) according to claim 14, wherein said tank (305) is arranged substantially vertically inclined with respect to said longitudinal centre line (PP') of said vehicle (100).

18. The saddle type vehicle (100) according to claim 2, wherein the canister purge valve mounting bracket (310) is provided with an error proofing feature.

19. The saddle-type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein at least a portion of the evaporative emission control subassembly (400) is disposed on one of the first area (a) and the second area (B) of the fuel tank interior (335).

20. The saddle-type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein at least one of the first region (a) and the second region (B) of the fuel tank interior (335) accommodates a fuel pump module (340).

21. The saddle type vehicle (100) according to claim 1 or claim 2 or claim 3, wherein the tank (305) is mounted between the tank purge valve (300) and the engine assembly (180).