A saddle-type vehicle

Abstract

Present invention discloses a saddle type vehicle (100). The saddle type vehicle (100) comprises a head pipe (102), a frame assembly (104), a fuel tank (106) and a canister unit (108). The frame assembly (104) is extended rearwardly from the head pipe (102) in a vehicle front-rear direction. The fuel tank (106) being disposed on the frame assembly (104). The canister (108a) is disposed behind the head pipe (102) and below the fuel tank (106) and in front of an internal combustion engine of the saddle type vehicle (100).

Description

TITLE OF THE INVENTION:A SADDLE-TYPE VEHICLEFIELD OF THE INVENTION

[0001] The present invention relates to a saddle type vehicle. More particularly, the present invention relates to disposition of a canister unit in the saddle type vehicle.BACKGROUND OF THE INVENTION

[0002] In vehicles, internal combustion engines (ICE) typically use volatile fuels like gasoline or diesel. When these fuels are exposed to higher temperatures, they tend to evaporate, which can lead to the emission of harmful fuel vapors from the fuel tank, contributing to air pollution. To address this, evaporative emission control systems are incorporated into vehicles. These systems usually include a canister filled with an absorbent material such as activated carbon. This canister captures fuel vapors from the tank, storing them until they are later purged and sent to the engine's intake manifold for combustion.

[0003] One of the key challenges in automotive design is the placement of the canister. The canister must be securely mounted to withstand vibrations and dynamic conditions during vehicle testing, while also fitting into the vehicle’s compact structure. Typically, the canister is mounted near the front of the fuel tank and near the suspension assembly. However, this location poses difficulties during vibration and durability testing. Existing mounting solutions, often made from plastic, lack the necessary structural strength to perform reliably under testing conditions, which increases the likelihood of failure during the evaluation process.

[0004] Moreover, the current method of canister placement leads to failures during vibration and road testing. In some vehicle canister is mounted to the fuel tank. The canister's mounting brackets, often attached to the fuel tank through welding methods, frequently fail due to the stresses of testing, causing detachment and threatening the stability and performance of the emission control system. Additionally, integrating molded brackets directly onto the fuel tank raises concerns about potential damage during both installation and routine maintenance. In some vehicles, the canister is packaged in a concave depression / groove provided on the bottom surface of the fuel tank. However, packaging of the canister in the concavedepression on the bottom surface of the fuel tank becomes difficult when the concave depression is removed or made smaller significantly to increase fuel stored capacity of the fuel tank.

[0005] In addition, the current arrangement also results in longer hoses, such as those connecting the purge control valve to the engine’s intake manifold. These longer hoses create problems such as increased bending and potential blockages, which can negatively impact the efficiency of the emission control system. Routing these hoses properly is essential to avoid interference with other vehicle components and reduce the risk of damage during operation. The attachment of the canister to the fuel tank, which has shown to be ineffective in some tests, causes complications. The extended hose lengths and complex routing add to the packaging challenges, increasing the risk of component damage and raising assembly costs.

[0006] Accordingly, a need or requirement still exists for a mounting of a canister unit in a saddle-type vehicle which can provide enhanced cost efficiency, durability, manufacturability, performance, serviceability, and space efficiency.

[0007] Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through comparison of described systems with some aspects of the present disclosure, as set forth in the remainder of the present application and with reference to the drawings.SUMMARY OF THE INVENTION

[0008] The present invention is directed towards a saddle type vehicle. The saddle type vehicle comprises a head pipe, a frame assembly and a fuel tank. The frame assembly extends rearwardly from the head pipe in a vehicle front-rear direction and the fuel tank is disposed on the frame assembly. The saddle type vehicle further comprises a canister unit. The canister unit comprises a canister. At least a portion of the canister is disposed behind the head pipe, below the fuel tank and in front of an internal combustion engine of the saddle type vehicle.

[0009] In an embodiment of the present invention, the frame assembly comprises one or more down frame tubes extended from the head pipe, one or more top frame tubes extended from the head pipe, and at least one down bridge bracket member coupled between the one or more down frame tubes, and wherein the canister isconfigured in a space defied between the one or more down frame tubes, the one or more top frame tubes and the at least one down bridge bracket member.

[0010] In an embodiment of the present invention, the canister is arranged longitudinally in the front-rear direction of the vehicle.

[0011] In an embodiment of the present invention, the canister is configured at a predefined angle with respect to the head tube, and wherein the predefined angle is in range of 80 to 120 degrees.

[0012] In an embodiment of the present invention, the canister unit comprises a first hose and a second hose, a first end of the first hose being connected to the fuel tank and a second end of a first hose being connected the canister, and the second hose is fluidically connected between the canister and a purge control valve of the vehicle.

[0013] In an embodiment of the present invention, the canister being disposed above and behind a cooling radiator in the vehicle front-rear direction.

[0014] In an embodiment of the present invention, the canister unit being detachably mounted to the head pipe through a mounting unit.

[0015] In an embodiment of the present invention, the canister unit being detachably mounted to at least one of the one or more down frame tubes through a mounting unit.

[0016] In an embodiment of the present invention, the canister unit being detachably mounted to the down bridge bracket member through a mounting unit.

[0017] In an embodiment of the present invention, the canister unit being detachably mounted to at least one of the one or more top frame tubes through a mounting unit.

[0018] In an embodiment of the present invention, the frame assembly comprises one or more cross members connected between the one or more down frame tubes and the one or more top frame tubes, and wherein the canister unit being detachably mounted to at least one of the one or more cross members through a mounting unit.BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in contextof these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.

[0020] Figure 1 A illustrates side view of a frame of a saddle type vehicle with a canister unit and a fuel tank, in accordance with an embodiment of the present invention.

[0021] Figure IB illustrates a side view of a frame of a saddle type vehicle with a canister unit, in accordance with an embodiment of the present invention.

[0022] Figure 2 illustrates a perspective view the canister unit, in accordance with the embodiment of the present invention.

[0023] Figure 3 illustrates a perspective view of a frame with the canister unit in the saddle type vehicle, in accordance with the embodiment of the present invention.

[0024] Figure 4 illustrates a perspective view of the cannister in the frame of the saddle type vehicle, in accordance with the embodiment of the present invention.

[0025] Figure 5 illustrates a perspective view of the canister unit the cannister in the frame of the saddle type vehicle, in accordance with the embodiment of the present invention.

[0026] Figure 6 illustrates a perspective view of the canister unit in the frame of the saddle type vehicle, in accordance with the embodiment of the present invention.DETAILED DESCRIPTION OF THE INVENTION

[0027] The present disclosure may be best understood with reference to the detailed figures and description set forth herein. Various embodiments are discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect to the figures are simply for explanatory purposes as the system may extend beyond the described embodiments. For example, the teachings presented, and the needs of a particular application may yield multiple alternative and suitable approaches to implement the functionality of any detail described herein. Therefore, any approach may extend beyond the particular implementation choices in the following embodiments described and shown.

[0028] References to “one embodiment,” “at least one embodiment,” “an embodiment,” “one example,” “an example,” “for example,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, structure, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.

[0029] The present invention now will be described more fully hereinafter with different embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather those embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the invention to those skilled in the art.

[0030] The present invention is illustrated with a saddle-type vehicle which may be an Internal Combustion Engine (ICE) based vehicle or a Hybrid Electric Vehicle (HEV). In a preferred embodiment, the vehicle may be an ICE-based saddle-type vehicle. Hereinafter, the term “vehicle” has been used interchangeably with “saddle-type vehicle”, and both terms are intended to convey the same meaning for the purpose of this specification.

[0031] The vehicle user is the primary operator / pilot of the vehicle but may also, depending on the context, include the secondary operator / passenger (if any) of the vehicle. The term “vehicle user” has been used interchangeably with “user”, “vehicle rider”, “vehicle operator”, “vehicle controller”, and “vehicle driver”, while conveying the same meaning.

[0032] The objective of the invention is to provide a more reliable and structurally secure mounting solution for the canister in a vehicle. The invention aims to prevent failures due to vibrations by ensuring that the canister remains firmly in place, even under dynamic conditions, thereby improving the overall performance and reliability of the system.

[0033] Yet another objective of the invention is to reduce the length and complexity of hoses used to connect the canister to the fuel tank and a purge control valve that is connected to the engine’s intake manifold. The invention aims tooptimize hose routing by minimizing their length, which helps reduce the risk of kinks, blockages, and damage during vehicle operation. This also contributes to easier assembly and better functional performance of the emission control system.

[0034] Yet another objective of the invention is to enhance the protection of the canister by positioning it in a secure, sheltered location within the vehicle. The invention aims to shield the canister from environmental factors such as water, road debris, and excessive heat, which can damage the canister and impact its functionality. This protective positioning helps improve the durability and longevity of the system.

[0035] Additionally, the invention seeks to optimize the overall space and weight efficiency of the emission control system. By reducing the need for long canister mounting bracket and optimizing the canister’s placement, the invention aims to reduce vehicle weight and improve fuel efficiency while maintaining high system performance. The goal is to provide a cost-effective solution that addresses packaging as well as mounting challenges of the canister without compromising reliability.

[0036] In the context of the present invention, a longitudinal axis refers to a front to rear axis relative to the saddle type vehicle, defining a vehicle longitudinal direction; a lateral axis refers to a side to side, or left to right axis relative to said saddle type vehicle, defining a vehicle lateral direction and a vertical axis refers to a upward to downward axis relative to the saddle type vehicle, defining a vehicle vertical direction. Further, arrows provided in the top right comer of figures depicts direction with respect to the saddle type vehicle, wherein an arrow F denotes front direction, an arrow R indicates rearward direction, an arrow Rt denotes rightward direction, an arrow Lt denoted leftward direction, an arrow Up denotes upward direction and an arrow Dw denotes downward direction, as and where applicable.

[0037] The present invention generally relates to a saddle type vehicle. More particularly, the present invention relates to disposition of a canister unit in the saddle type vehicle. By positioning the canister unit near the fuel tank and in close proximity to a power unit, such as engine, the present invention significantly reduces hose lengths, decreases evaporative emissions through permeation thereby enhancing the effectiveness of the evaporative emissions (EVAP) system.

[0038] Figure 1A illustrates a side view of a front portion of a saddle type 100 vehicle with a canister unit 108 and a fuel tank 106, in accordance with an embodiment of the present invention. The term saddle type vehicle has been interchangeably used with term vehicle. Figure IB illustrates a side view of a portion of the saddle type vehicle with a canister unit, in accordance with an embodiment of the present invention. Figures 1A-1B have been discussed in conjunction with each other.

[0039] The vehicle 100 comprises a head pipe 102 and a frame assembly 104 extending rearwardly from the head pipe 102 in a vehicle front-rear direction. Further, the saddle type vehicle 100 comprises a canister unit 108. The head pipe 102 is located at a front side of the frame assembly 104 and extended in a vehicle upward-downward direction. The head pipe 102 supports a steering shaft (not shown) of the vehicle 100. In an embodiment, the frame assembly 104 comprises one or more down frame tubes 104a, 104b extended from the head pipe 102, one or more top frame tubes 104c, 104d extended from the head pipe 102. For instance, the one or more down frame tubes 104a, 104b includes two down frame tubes 104a, 104b extended downwards from the head pipe 102 and configured spaced apart, and the one or more top frame tubes 104c, 104d includes two top frame tubes 104c, 104d extended rearwardly from the head pipe 102 and configured above the down frame tubes 104a, 104b. The frame assembly 104 further includes at least one down bridge bracket member 104f coupled between the down frame tubes 104a, 104b. The down bridge bracket member 104f is connect to the front portion of the down frame tubes 104a, 104b near the head pipe 102. The top frame tubes 104c, 104d can be used to support a seat assembly (not shown) of the vehicle 100.

[0040] Further, the saddle type vehicle 100 includes a power unit 110 and a fuel tank 106 that is supported by the frame assembly 104. The fuel tank 106 can be supported on the top frame tubes 104c, 104d. In a non-limiting example, the power unit 110 is an internal combustion engine.

[0041] Also referring Figure 2 along with Figure 1A and Figure IB. Figure 2 illustrates a perspective view the canister unit, in accordance with the embodiment of the present invention. As shown, the canister unit 108 comprises a canister 108a, a first hose 108b and a second hose 114a. The canister unit 108 is a vital componentto capture and store fuel vapours emitted from the vehicle's fuel tank 106. The canister unit 108 plays a crucial role in reducing these vapor emissions to outside by safely containing fuel vapors and later purging the fuel vapors into the engine 110 for combustion, thereby reducing the vehicle's overall environmental impact. In a non-limiting example, the canister 108a can have cylindrical shape. The canister unit 108 is designed to withstand varying temperatures and pressures encountered within the power unit 110 of the vehicle 100. The canister 108a comprises an adsorbent configured to adsorb fuel evaporative gas (otherwise referred to as fuel vapours) from the fuel tank 106. The adsorbent preferably occupies a large surface area within the canister 108a to facilitate effective adsorption of the fuel vapors. In a non-limiting example, the adsorbent is activated charcoal arranged in the form of beds. The adsorbent traps fuel vapors effectively while allowing air to pass through. For example, the fuel vapours generated in the fuel tank are drawn into the canister 108a. During engine operation, the purge control valve opens to release the stored vapours into an intake manifold of the engine 110. This process allows the vapours to mix with incoming air and be burned off in the combustion chamber, thereby reducing emissions.

[0042] Further, the canister unit 108 comprises the second hose 114a. The second hose 114a is fluidically connected between the canister 108a and a purge control valve of the vehicle. By routing the purged fuel vapours directly to the intake manifold, the second hose 114a ensures that these vapours are drawn into the engine's combustion chamber during normal engine operation. In the engine's combustion chamber, the purged vapours mix with fresh air and are burned off during normal combustion processes. This ensures complete combustion of fuel vapours, minimizing emissions of harmful pollutants into the atmosphere.

[0043] In an embodiment, at least portion of the canister 108a is disposed behind the head pipe 102, below the fuel tank 106 and in front of the internal combustion engine 110 of the saddle type vehicle 100. This location of the canister facilitates in optimizing the routing of the hoses 108b, 114a, including the first hose 108b (also referred to as vapour hose) and the second hose 114a, close to the fuel tank 106 and in front of the engine 110 and resulting in improved purge function.

[0044] In another embodiment, a portion of the canister 108a can be extended forwardly beyond the fuel tank 106 towards the head pipe 102, to utilize maximum space in the front portion of the frame assembly 104. This allows space below the fuel tank 106 to increase size and volume of the fuel tank 106 to store more fuel.

[0045] Figure 3 illustrates a side view of a front portion of the frame assembly with the canister unit in the saddle type vehicle, in accordance with the embodiment of the present invention. The canister 108a can be arranged longitudinally in the front-rear direction of the vehicle. The canister 108a is configured in a space defied between the one or more down frame tubes 104a, 104b, the one or more top frame tubes 104c, 104d and the at least one down bridge bracket member 104f. The canister 108a is disposes in the space, defied at the front portion and behind the headtube 102, between the down frame tubes 104a, 104b, the top frame tubes 104c, 104d and the down bridge bracket member 104f. Further, the canister 108a is disposed in front of the power unit 110 and below the fuel tank in the vehicle frontrear direction. Such a disposition of the canister unit 108 in proximity to the fuel tank 106 and the power unit 110 in the present invention minimizes the length of hoses 108b, 114a used, thereby reducing the evaporative emission through permeation and improving the cost effectiveness and reducing complexity of hose routing in the confined space of the vehicle 100. Moreover, the present invention ensures that the positioning the canister unit 108 does not interfere with the serviceability of adjacent components, such as a cylinder head (not shown) of the engine 110. During maintenance tasks like tappet clearance adjustments and servicing of valve train parts within the cylinder head, there is no requirement to remove the canister 108a thus facilitating easier and more efficient servicing of the engine components without unnecessary disassembly, thereby saving time and effort.

[0046] Figure 4 shows a side view of the canister unit 108 within the saddle-type vehicle. In an embodiment of the present invention, the canister 108a is configured behind the head tube 102. The canister configured in such a way that it is placed in angular position behind the head tube 102. The canister unit 108 is positioned between the down frame tubes 104a, 104b and the top frame tubes 104c, 104c at a predefined angle. The predefined angle ranging from 80 to 120 degrees. This angleis measured relative to the X-X' axis, which runs along the head tube 102, passing through its midpoint. The canister unit 108 is oriented at a predefined angle along the Y-Y' axis with respect to the X-YX' axis. The Y-Y' axis may passes through the center of the canister unit 108. In another embodiment of the present invention, the canister 108a can be positioned between the down frame tubes 104a, 104b at an predefined angle relative to the head tube 102, with the predefined angle ranging from 80 to 120 degrees.

[0047] Figure 5 and 6 illustrates a perspective view of the cannister in the frame assembly of the saddle type vehicle, in accordance with the embodiment of the present invention. For sake of brevity, Figures 5 and 6 are explained together. The down bridge bracket member 104f can be a support frame member / reinforcement member that is connected between the one or more down frame tubes 104a, 104b. A bridge bracket member ( not shown) can be connected between the top frame tubes 104c, 104d. The down bridge bracket 104f is configured in such a way that it is connected in to the down frame tubes 104a, 104b from bottom to provide more space for mounting the canister 108a. This arrangement gives the frame structure an enhanced strength and an additional space for mounting any additional members including canister and other component, in the front portion of the frame assembly 104 and in proximity of the headtube.

[0048] In an embodiment of the present invention, the canister unit 108 can be detachably mounted to the head pipe 102 through a mounting unit 112. The mounting unit 112 include one or more mounting brackets and fasteners. The mounting unit 112 can be permanently or temporarily joined to the head tube 102 and the canister 108a using welding technique or press fit mechanism.

[0049] In an embodiment of the present invention, the canister unit 108 can be detachably mounted to at least one of the down frame tubes 104a, 104b through the mounting unit 112.

[0050] In an embodiment of the present invention, the canister unit 108 can be detachably mounted to the down bridge bracket member 104f through the mounting unit 112.

[0051] In an embodiment of the present invention, the canister unit 108 being detachably mounted to at least one of the one or more top frame tubes 104c, 104d through the mounting unit 112.

[0052] The mounting unit 112 can include includes at least one fastening device to detachably attach the canister unit 108 onto the head pipe 102. In an embodiment, the canister unit 108 is securely mounted using a canister holder 108e configured on the canister 108, and one or more mounting brackets 112 and / or fastening device. In a non-limiting example, fastening device is a screw and nut arrangement. In an embodiment, the fastening member such as a nut is inserted through a recess provided on the one or more mounting brackets for securely mounting the canister unit 108 onto the head pipe 102 or the down frame tubes 104b, 104c or down bridge bracket member 104f or the top frame tubes 104c, 104d. One end of the one or more mounting brackets 122 can be welded or fasten or press fitted to the head pipe 102 or the down frame tubes 104b, 104c or the down bridge bracket member 104f or the top frame tubes 104c, 104d, and other end of the more mounting brackets 122 can engage with the canister holder 108e to detachably mounting the canister.

[0053] The one more mounting brackets 112 can be affixed to the head pipe 102 or the down frame tubes 104b, 104c or the down bridge bracket member 104f or the top frame tubes 104c, 104d through a conventional technique known in the art such as welding, riveting by set of nuts and the like. The mounting bracket 112 is provided with holes for attaching the second mounting bracket. In a non-limiting example, the mounting bracket 112 can be made from strong and lightweight materials such as aluminium alloy or steel. These materials ensure durability and resistance to vibrations and impacts, which are crucial considering the dynamic nature of vehicle operations.

[0054] In an embodiment of the present invention, this detachable mounting of the canister unit 108 helps in achieving ease of assembly and disassembly of the canister unit 108. Also, detachable mounting to one of the frame tubes 104a, 104b, 104c, 104d or the down bridge bracket member 104f allows for easier accessibility, maintenance and replacement, providing flexibility and simplifying assembly or disassembly. In another embodiment, the mounting unit 112 can be affixed to the frame assembly 104 through a conventional technique known in the art such aswelding, riveting by set of nuts and the like and the mounting face of the mounting unit 112 can be adapted to secure the canister unit 108 through a conventional fastening technique.

[0055] The one or more top frame tubes 104c,104d and the one or more down frame tubes 104a, 104b of the frame assembly 104 are connected using one or more crossmembers 103. The cross members help in ensuring additional strength and rigidity to the frames assembly 104, helping to distribute loads evenly across the frame and improving the overall stability and safety of the vehicle 100. In an embodiment of the present invention, the frame assembly 104 comprises the one or more cross members 103 connected between the one or more down frame tubes 104a, 104b and the one or more top frame tubes 104c, 104d. The canister unit 108 can be detachably mounted to at least one of the one or more cross members 103 through the mounting unit 112 or any suitable mounting arrangement. In an embodiment, the one or more cross members 103 can be a tubular structure or a bracket structure or any suitable mechanical structure connected between the down frame tubes 104a, 104b and the top frame tubes 104c, 104d.

[0056] In addition, as shown in figure 5, a cooling radiator 116 is also provided in the vehicle 100 to dissipates heat from the engine by circulating coolant or air, preventing the engine from overheating and ensuring optimal performance. According to the present invention, the cooling radiator is mounted to the down frame tubes 104a, 104b. In an embodiment of the present invention, the canister 108a can be disposed above and behind the cooling radiator 116 in the vehicle frontrear direction.

[0057] The present invention can eliminates mounting of the canister unit 108 onto the fuel tank 106, thereby eliminating the use of brackets on the fuel tank 106 and thus preventing the failure of the fuel tank 106 due to multiple welding.

[0058] The claimed invention as disclosed above is not routine, conventional or well understood in the art, as the present invention enable the following solutions to the existing problems in conventional technologies. By positioning the canister near the fuel tank and close to the power unit, and in front portion of the frame assembly, the invention provide ease of accessibility to the canister for servicing, assembly and disassembly. In addition, by positioning the canister near the fuel tankand close to the power unit, and in front portion of the frame assembly, the invention shortens both the first and second hoses. This reduction decreases evaporative emissions caused by permeation and improves cost-effectiveness. Additionally, shorter hoses reduce the risk of damage and simplify routing, enhancing overall system efficiency. The canister is also placed in a protected area, shielding it from external factors like water, sunlight, and road debris. This protection ensures the canister's durability and reliable operation in various environmental conditions, enhancing the system's longevity and performance.

[0059] In addition, a length of first hose can be in arrange of 80mm to 300mm. A length of second hose can be in arrange of 60mm to 90mm. In an embodiment, a ratio of wheelbase of the vehicle and the length of the canister can be in a range of 16 to 5. For instance, the wheelbase can be in a range of 1300mm to 1500mm. Thus, present invention significantly reduces the length of the first hose compared to the existing solution where the canister is mounted under the seat assembly of the vehicle or in front of the head tube.

[0060] The canister’s strategic placement does not interfere with the serviceability of adjacent components, such as the cylinder head. This allows for routine maintenance, including tappet clearance adjustments and valve train servicing, without the need to remove or relocate the canister, simplifying maintenance and reducing downtime. Despite its proximity to the engine, the canister operates efficiently without being negatively impacted by engine heat. The gap between the cylinder head and engine, combined with the canister's heat-resistant materials, ensures optimal performance without compromising functionality due to excessive heat exposure.

[0061] The implementation of this invention lowers manufacturing costs by reducing hose lengths and simplifying assembly. It also eliminates unnecessary components and optimizes the layout, reducing the vehicle's weight and improving fuel efficiency and performance. Additionally, the integration of the roll-over valve with the fuel cap and the positioning of the purge control valve near the canister enhances the effectiveness of the evaporative emissions (EVAP) system. This integration shortens the vapor hose routing, ensuring efficient purging and venting without compromising system performance.

[0062] Furthermore, eliminating certain brackets attached to the fuel tank reduces potential failure points, enhancing safety by minimizing risks associated with multiple welds. This improves structural integrity and ensures compliance with stringent safety standards. The vehicle equipped with this invention also passes vibration tests, demonstrating the reliability and robustness of the mounting system under dynamic conditions, thereby meeting rigorous performance and regulatory standards.

[0063] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.List of Reference Numerals100: Vehicle102: Head pipe104: Frame Assembly106: Fuel tank108: Canister Unit108a: Canister108b: First Hose110: Power Unit112: Mounting Unit114a: Second Hose116: Cooling radiator

Claims

WE CLAIM:

1. A saddle type vehicle (100), comprising:a head pipe (102);a frame assembly (104), the frame assembly (104) extending rearwardly from the head pipe (102) in a vehicle front-rear direction;a fuel tank (106), the fuel tank (106) being disposed on the frame assembly (104); anda canister unit (108), the canister unit (108) comprises a canister (108a), wherein at least a portion of the canister (108a) being disposed behind the head pipe (102), below the fuel tank (106) and in front of an internal combustion engine of the saddle type vehicle (100).

2. The saddle type vehicle (100) as claimed in claim 1, wherein the frame assembly (104) comprises:one or more down frame tubes (104a, 104b) extended from the head pipe (102); one or more top frame tubes (104c, 104d) extended from the head pipe (102); andat least one down bridge bracket member (104f) coupled between the one or more down frame tubes (104a, 104b),wherein the canister (108a) is configured in a space defied between the one or more down frame tubes (104a, 104b), the one or more top frame tubes (104c, 104d) and the at least one down bridge bracket member (104f).

3. The saddle type vehicle (100) as claimed in claim 1, wherein the canister (108a) is arranged longitudinally in the front-rear direction of the vehicle.

4. The saddle type vehicle (100) as claimed in claim 1, wherein the canister (108a) is configured at a predefined angle with respect to the head tube (102), and wherein the predefined angle is in range of 80 to 120 degrees.

5. The saddle type vehicle (100) as claimed in claim 1, wherein the canister unit (108) comprises a first hose (108b) and a second hose (114a), a first end of the first hose (108b) being connected to the fuel tank (106) and a second end of the a first hose (108b) being connected the canister(108a), and the second hose (114a) is fluidically connected between the canister(108a) and a purge control valve of the vehicle (100) .

6. The saddle type vehicle (100) as claimed in claim 1, wherein the canister (108a) being disposed above and behind a cooling radiator (116) in the vehicle front-rear direction.

7. The saddle type vehicle (100) as claimed in claim 2, wherein the canister unit (108) being detachably mounted to at least one of the one or more down frame tubes (104a, 104b) through a mounting unit (112).

8. The saddle type vehicle (100) as claimed in claim 2, wherein the canister unit (108) being detachably mounted to the down bridge bracket member (104f) through a mounting unit (112).

9. The saddle type vehicle (100) as claimed in claim 2, wherein the canister unit (108) being detachably mounted to at least one of the one or more top frame tubes (104c, 104d) through a mounting unit (112).

10. The saddle type vehicle (100) as claimed in claim 2, wherein the frame assembly (104) comprises one or more cross members (103) connected between the one or more down frame tubes (104a, 104b) and the one or more top frame tubes (104c, 104d), and wherein the canister unit (108) being detachably mounted to at least one of the one or more cross members (103) through a mounting unit (112).

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