Description:TECHNICAL FIELD
[0001] The present disclosure relates to a saddle type vehicle. More particularly, the present invention relates to a fuel tank assembly of the saddle type vehicle.
BACKGROUND OF THE INVENTION 5
[0002] In conventional vehicles in which fuel tanks are packaged under the floorboard, also commonly known as bottom mounted fuel tanks, the provision for refuelling is provided at a certain vertical height above the fuel tank. The refuelling provision, i.e. fuel inlet, is connected to the fuel tank by means of a connecting fuel 10 pipe. The connecting fuel pipe for connecting the opening of the refuelling provision to the fuel tank must meet strict leak proof requirements. In addition, a fuel cap is provided to open and close the opening of the refuelling provision based on requirements. Further, the vehicle is also provided with an evaporative emission control system for preventing discharge of fuel vapours from a fuel tank to 15 surroundings. The evaporative control system typically comprises a vent tube connected between a vent spout of the refuelling provision and the fuel tank and a canister fluidically connected to the refuelling provision and receives fuel vapours generated in the fuel tank. In addition, the vent pipe relieves the accumulated air inside the fuel tank during refuelling, which is released into the atmosphere by an 20 open end of the vent spout of the refuelling provision. The open end of the vent spout is exposed to the atmosphere when the fuel inlet is kept open during a refuelling operation, hence allowing the accumulated air inside the fuel tank to escape through the vent pipe and the vent spout. The canister is coupled to an intake manifold of an engine of the saddle type vehicle through a purge control valve that 25 controls purging of the canister. The purge control valve is provided with a purge port which is connected to the cannister. The purge control valve is connected to an air intake port of the intake manifold, thereby enabling transfer of fluid or air from the cannister to the air intake port of the engine for combustion.
[0003] Furthermore, for bottom mounted fuel tanks, the fuel storage capacity of 30 fuel tank is limited due to a large number of layout parameters such as ground clearance, vehicle width and length dimensions, wiring harness and cable routing,
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and mounting components like fuel gauge inside fuel tank, ergonomic parameters such as customer foot resting height, and air circulation for cooling and breathing circuits for the engine. Any attempt at increasing the fuel tank volume may have a detrimental effect on any of the aforementioned parameters. Therefore, in the bottom mounted fuel tanks breathing space/volume or vapour volume is very less. 5 [0004] In addition, while refuelling when the full tank is fully filled, the connecting fuel pipe also get filed with the fuel, therefore no vapour/breathing space remains in the fuel tank. When the full tank is almost filled with fuel and vehicle is exposed to outside hot weather, preferably when the vehicle is parked in open space under direct sun light, the fuel tank gets heated up and pressure buildup in the fuel tank, 10 which leads to fuel stars rising up through the connecting fuel pipe from the fuel tank and reaches the refuelling provision. Also, fuel also rise up through the vent tube due to capillary action and reaches the refuelling provision that is fluidically connected to the canister. Due to this, the canister gets flooded with exceeds fuel, and fuel leakage occurs through the canister and further, sloshing of the fuel takes 15 place, which is a fire safety concern. In addition, the performance of the canister also gets significantly affected if liquid fuel enters the canister continuously.
[0005] Therefore, there is a need of a simple and cost-effective solution which can obviates the above-mentioned problems.
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SUMMARY OF THE INVENTION
[0006] The present disclosure discloses a simple and cost-effective fuel tank assembly for a saddle type vehicle. More particularly, the present invention relates to an additional breathing/vapor box connected to a fuel tank to prevent spillage of the fuel through a canister. 25
[0007] In accordance with an embodiment of the present disclosure, the proposed the fuel tank assembly comprises a fuel tank disposed under a floorboard of the saddle type vehicle, and a fuel inlet unit having a fuel inlet for receiving fuel from an external source. The fuel inlet is fluidically connected to the fuel tank through a fuel supply pipe. In addition, the fuel tank assembly comprises a breathing tank is 30 fluidically connected to the fuel inlet unit and the fuel tank. The berating tank is configured to receive fluid from the fuel tank.
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[0008] The fuel tank assembly further comprises a first hose that is configured to fluidically connect the breathing tank to the fuel tank, a second hose that is configured to fluidically connect the breathing tank to the fuel inlet unit, and a third hose that is configured to fluidically connect the breathing tank to a canister of the fuel tank assembly. The canister is configured below the breathing tank. 5
[0009] In an embodiment, the breathing tank is configured such that a portion of the breathing tank is projected above the fuel inlet unit.
[0010] The fuel inlet unit comprises a fuel inlet flange, and a connecting pipe protruded from the fuel inlet flange. The connecting pipe comprises a first portion extended above the fuel inlet flange and having the fuel inlet, and a second portion 10 extended below the fuel inlet flange.
[0011] The fuel supply pipe comprises a first inlet pipe coupled to first portion of the connecting pipe at a first end, and a second inlet pipe extending at least downwardly from the first inlet pipe. The second inlet pipe is having an intake end and an outlet end. The intake end of the second inlet pipe being coupled to a second 15 end of the first inlet pipe, and the outlet end of the second inlet pipe being fluidically connected to the fuel tank, thereby supplying fuel received at the fuel inlet to the fuel tank (250).
[0012] The fuel inlet flange comprises a receiver portion surrounding the fuel inlet to receive excess fuel spillage from the fuel inlet. 20
[0013] The fuel inlet flange comprises a drain spout connected to a drain pipe. The drain pipe is open at one end for draining any excess fuel spillage from the fuel inlet and collected at the receiver portion.
[0014] The fuel tank assembly further comprises a fuel cap for covering the fuel inlet. 25
[0015] Furthermore, the fuel tank assembly comprises a mounting bracket for mounting the breathing tank to the fuel inlet unit.
[0016] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent 30 by reference to the drawings and the following detailed description.
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[0017] Further, it is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
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BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The proposed invention is described with reference to an exemplary embodiment of a fuel tank assembly for a vehicle with the accompanying figures. Non-limiting and non-exhaustive embodiments of the present embodiments are 10 described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise specified.
[0019] Figure 1A illustrates a right-side view of an exemplary saddle-type vehicle, in accordance with an embodiment of the invention.
[0020] Figure 1B illustrates a top perspective view of a frame assembly of the 15 saddle-type vehicle, in accordance with an alternative embodiment of the invention.
[0021] Figure 2A illustrates a left-side view of a fuel tank assembly for the vehicle, in accordance with an embodiment of the invention.
[0022] Figure 2B illustrates a right-side view of a fuel tank assembly for the vehicle, in accordance with an embodiment of the invention. 20
[0023] Figure 2C illustrates a front view of a fuel tank assembly for the vehicle, in accordance with an embodiment of the invention.
[0024] Figure 3 illustrates a sub assembly of a breathing tank, a fuel inlet unit, and a fuel tank, in accordance with an embodiment of the invention.
[0025] Figure 4 illustrates a sectional view of a sub assembly of the breathing tank 25 and the fuel inlet unit, in accordance with an embodiment of the invention.
[0026] Figure 5 illustrates a sectional view of a sub assembly of the breathing tank and the fuel inlet unit, in accordance with an embodiment of the invention.
[0027] Figure 6A Figure 6B illustrate side views of the breathing tank, in accordance with an embodiment of the invention. 30
DETAILED DESCRIPTION
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[0028] In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. One skilled in the relevant art will recognize, however, that the techniques described herein can be practised without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations 5 are not shown or described in detail to avoid obscuring certain aspects.
[0029] Various features and embodiments of the present disclosure here will be discernible from the following further description thereof, set out hereunder. Further “front” and “rear”, and “left” and “right” referred to in the ensuing description of the illustrated embodiment refer to front and rear, and left and right 10 directions as seen from a rear portion of the vehicle and looking forward. However, it is contemplated that the disclosure in the present disclosure may be applied to any vehicle without defeating the spirit of the present subject matter. The detailed explanation of the constitution of parts other than the present disclosure which constitutes an essential part has been omitted at suitable places. 15
[0030] The present subject matter is further described with reference to the accompanying figures. It should be noted that the description and figures merely illustrate the principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting 20 principles, aspects and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[0031] Further, various embodiments disclosed herein are to be taken in the illustrative and explanatory sense, and would in no way be construed as limiting the present disclosure. All joinder references (e.g., attached, affixed, coupled, 25 connected, etc.) are only used to aid the reader’s understanding of the present disclosure, and may not create limitations, particularly as to the position orientation, or use of the system and/or methods disclosed herein. Therefore, joinder references, if any, are to be construed broadly. Moreover, such joinder references do not necessarily infer that two elements are directly connected to each other. 30
[0032] Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “primary”, “secondary”, “main” or any other ordinary and/or numerical
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terms, should also be taken as identifiers, to assist the reader’s understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation, and/or modification relative to, or over, another element, embodiment, variation and/or modification. 5 [0033] It will also be appreciated that one or more of the elements depicted in the drawings/ figures can also be implemented in a more separated or integrated manner, or even removed, or rendered as inoperable in certain cases, as is useful in accordance with a particular application. The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 10 However, the disclosed invention is not limited to the present embodiments.
[0034] Embodiments of the present disclosure explained herein relate to a simple and cost-effective fuel tank assembly for a saddle type vehicle. More particularly, the present invention relates to an additional breathing/vapor box connected to a fuel tank to prevent spillage of the fuel through a canister of the vehicle. 15
[0035] At least one object of the present disclosure is to provide a breathing tank disposed at a position such that a portion of the breathing tank is projected above a fuel inlet unit to receive fluid from the fuel tank when fuel tank gets heated up and pressure buildup in the fuel tank, and fuel level rises from the fuel tank, thereby preventing spillage of fuel through the canister. 20
[0036] Figure 1A illustrates a right-side view of an exemplary saddle type vehicle 10, in accordance with an embodiment of the present subject matter. The vehicle 10 comprises a frame assembly 105. The frame assembly 105 includes a head pipe 105A and a main tube 105B. The main tube 105B has a first portion 105B’ extending rearwardly and downwardly from the head pipe 105A. One or more front 25 suspensions 110 connect a front wheel 115 to a handlebar assembly 190, which forms a steering assembly of the vehicle 10. The steering assembly is rotatably disposed about the head pipe 105A. The first portion 105B’ of the main tube 105B extends rearwardly downward from the head pipe 105A and the main tube 105B includes a bent portion thereafter extending substantially in a longitudinal direction. 30 In an alternative embodiment as illustrated in Figure 1B, the saddle-type vehicle 10 has the frame assembly 105 with a non-monocoque frame structure having a first
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cross tube 105C extending from the first portion 105B’ of the main tube 105B in a vehicle width direction, a pair of reinforcement members 105D extending rearwardly from the first cross tube 105C, and a second cross tube 105E extending in the vehicle width direction from a rear portion of the pair of reinforcement members 105D, thereby connecting the pair of reinforcement members 105D. 5 [0037] Reference is made to Figure 1, wherein the vehicle 10 includes a power unit comprising at least an internal combustion (IC) engine 125. The power unit is coupled to a rear wheel 145. In one embodiment, the engine 125 is swingably connected to the frame assembly 105. In one embodiment, the engine 125 is mounted to the swing arm (not shown) and the swing arm is swingably connected 10 to the frame assembly 105. Further, the vehicle 10 includes a transmission means (not shown) coupling the rear wheel 145 to the power unit. The transmission means includes a continuously variable transmission, an automatic transmission, or a fixed ratio transmission. A seat assembly 151 is disposed above the power unit and is supported by the rear tubes 105C of the frame assembly 105. The seat assembly 151 15 is pivotally openable. The frame assembly 105 defines a step-through portion ahead of the seat assembly 151. A floorboard 155 is disposed at the step-through portion, wherein a rider can operate the vehicle 10 in a seated position by resting feet on the floorboard 155. The floorboard extends rearwardly from a rear end of the first portion 105B’ of the main tube 105B. Further, the floorboard 155 is capable of 20 carrying loads.
[0038] Further, the frame assembly 105 is covered by plurality of body panels including a front panel 160A, a leg shield 160B, an under-seat cover 160C, a left and a right-side panel 160D, and a rear panel 160E mounted on the frame assembly 105 and covering the frame assembly 105 and parts mounted thereof. Herein, front 25 panel 160A is disposed forwardly of the head pipe 105A in a vehicle front-rear direction and the rear panel 160E is disposed rearwardly of the head pipe 105B in the vehicle front-rear direction.
[0039] In addition, a front fender 165 is covering at least a portion of the front wheel 115. A utility box is disposed below the seat assembly 151 and is supported by the 30 frame assembly 105. A rear fender 175 is covering at least a portion of the rear wheel 145 and is positioned upwardly of the rear wheel 145. One or more
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suspension(s) (not shown) are provided in the rear portion of the vehicle 10 for connecting the swing arm 141 and the rear wheel 145 to the frame assembly 105 for damping the forces from the wheel 145 and the power unit from reaching the frame assembly 105. [0040]
Furthermore, the vehicle 10 comprises of plurality of electrical and 5 electronic components including a headlight 185A, a taillight 185B, a transistor-controlled ignition (TCI) unit (not shown), an alternator (not shown) and a starter motor (not shown).
[0041] Referring to FIGUREs 2A to 2C where a left side view, right side view and a front view of fuel tank assembly for the saddle type vehicle are shown. The fuel 10 tank assembly 200 includes a fuel tank 250, a fuel inlet unit 209 having a fuel inlet 212 for receiving fuel from an external source, and a breathing tank 202 fluidically connected to the fuel inlet unit 209 and the fuel tank 250. The fuel inlet 212 is fluidically connected to the fuel tank 250 through a fuel supply pipe 225. The berating tank 202 is configured to receive fluid from the fuel tank 250. The fuel 15 tank 250 is disposed under the floorboard 155 of the saddle type vehicle 10.
[0042] The fuel tank assembly 200 further includes a first hose 204, a second hose 206, and a third hose 208. The first hose 204 is configured to fluidically connect the breathing tank 202 to the fuel tank 250. The second hose 206 is configured to fluidically connect the breathing tank 202 to the fuel inlet unit 209. Third hose 208 20 is configured to fluidically connect the breathing tank 202 to a canister 260 of the fuel tank assembly 200. The canister 260 is configured below the breathing tank 202 so that fuel vapor from the breathing tank can flow to the canister 260 due to force of gravity.
[0043] In an embodiment, a plurality of holding members, such as clamps or hooks, 25 207 can be provided with the first hose 204. The holding members 207 can fix the first hose 204 to the fuel supply pipe for routing the first hose 204.
[0044] In addition, the breathing tank 202 is adapted to act as an additional vapour tank connected to the fuel tank 250 to receive fluid including fuel and/or fuel vapor from the fuel tank through the first hose 204. Particularly, the breathing tank 202 30 provide additional vapor space for the fuel tank where the fuel vapor generated in the fuel tank can be accumulated and further supplied to the canister 260. In
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addition, When vehicle is exposed to outside hot weather, preferably when the vehicle is parked in open space under direct sun light, the fuel tank gets heated up and pressure buildup in the fuel tank, which leads to fuel stars rising up through the fuel supply pipe 225 and the first hose 204 due to capillary action and reaches the refuelling provision, i.e., fuel inlet unit, 209. The breathing tank 202 is configured 5 to receive the fuel rising up through the first hose 204 and store temporary. Further, the, the fuel received in the breathing tank 202 is returned to the fuel inlet unit 209 through the second hose 206, and further the fuel from the fuel inlet unit 209 is supplied back to the fuel tank 250 through the fuel supply pipe 225. Therefore, flow of fuel from the fuel tank 250 to the canister 260 is prevented, consequently 10 preventing fuel leakage through the canister 260 and sloshing of the fuel. In addition, the performance of the canister 260 also improved by prevent flow of the fuel to the canister 260. [0045] Further, the fuel vapor from the breathing tank 202 is supplied to the canister 260 from the breathing tank 202 through the third hose 208. 15
[0046] Referring to FIGURE 2A to FIGURE 5, the fuel inlet unit 209 includes a fuel inlet flange 210 and a connecting pipe 211. The connecting pipe 211 is protruded from the fuel inlet flange 210. The connecting pipe 211 comprises a first portion 211A extended above the fuel inlet flange 210 and having the fuel inlet 212, and a second portion 211B extended below the fuel inlet flange 210. A fuel cap 224 20 is configured with the fuel inlet flange 210 for covering the fuel inlet 212. The fuel cap 224 is supported on the fuel inlet flange 210. In an embodiment, the fuel cap 224 is hingedly attached to the fuel inlet flange 210 and is openable by means of a wire operable by an ignition key of the vehicle. In an embodiment, the fuel cap 224 can be mounted with the fuel inlet flange 210 through screws 223. 25
[0047] In addition, the fuel supply pipe 225 include a first inlet pipe 230 and a second inlet pipe 240. The first inlet pipe 230 is coupled to the first portion 211A of the connecting pipe 211 at a first end 230A of the of the first inlet pipe 230. The first inlet pipe 230 extends at least downwardly from the first portion 211A. In an embodiment, the fuel inlet flange 210 can be provided integrally with the first inlet 30 pipe 230. The second inlet pipe 240 is extending at least downwardly from the first inlet pipe 230. The second inlet pipe 240 is having an intake end 240A and an outlet
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end 240. The intake end 240A of the second inlet pipe 240 is coupled to a second end 230B of the first inlet pipe 230. In an embodiment, the intake end 240A of the second inlet pipe 240 can be detachably attached to the second end 230B of the first inlet pipe 230 by means of a circumferential clamp which can be undone to detach the second inlet pipe 240 from the first inlet pipe 230. 5 [0048] The outlet end 240B of the second inlet pipe 240 is fluidically connected to the fuel tank 250. Herein, the fuel tank 250 is disposed under the floorboard 155 of the vehicle 10. In operation, the fuel received by the fuel inlet 212 travels through the first inlet pipe 230 and the second inlet pipe 240 to the fuel tank 250 disposed under the floorboard 155. The detachable attachment of the second inlet pipe 240 10 to the first inlet pipe 230 allows a user to detach the second inlet pipe 240 from the first inlet pipe 230, which makes handling of the first inlet pipe 230 and the second inlet pipe 10 240 easier. In an embodiment, sum of volume of the first inlet pipe 230 and volume of the second inlet pipe 240 can be at least 5% of volume of the fuel tank 250. That is, in addition to the fuel tank 250 itself, some amount of fuel 15 can be stored in the first inlet pipe 230 and the second inlet pipe 240, thereby increasing fuel storage capacity.
[0049] The fuel inlet flange 210 includes a receiver portion 218 surrounding the fuel inlet 212 to receive excess fuel spillage from the fuel inlet 212 while refuelling the fuel tank 250. The receiver portion 218 can be formed by raising of side walls 20 of the fuel inlet flange 210.
[0050] The fuel inlet flange 210 further comprises a drain spout 220 connected to a drain pipe 222. Any excess fuel spilling out of the fuel inlet 212 is collected by raised side walls of the fuel inlet flange 210 forming the receiver portion 218 and directed towards the drain spout 220 assisted by gravity. As the drain spout 220 is 25 connected to the drain pipe 222 which is open at one end, any spilled fuel received by the drain spout 220 is therefore drained via the open end of the drain pipe 222, preventing any fuel accumulation in the fuel inlet flange 210. Similarly, the receiver portion 218 and the drain spout 220 can also drain out any water collected in the receiver portion 218 during rains, preventing water accumulation around the fuel 30 inlet 212.
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[0051] In addition, as shown in FIGURE 5, the first inlet pipe 230 further has a canister holder 234 for holding the canister 260. The canister 260 receives fuel vapours from the breathing tank 202 and purges the fuel vapours into the engine 125 through a purge control valve 261 that is fluidically connected to the canister 260. Further, the first inlet pipe 230 can be provided with guiding projections for 5 routing the drain pipe 222, in a substantially vertical orientation to allow fuel spillage to flow assisted by gravity, through the drain pipe 222. The location of the mounting flange 232 and the guiding portion 234 is unrestricted to being varied as per vehicle layout requirements. The mounting of canister 260 on the mounting flange 232 and routing of the drain pipe 222 through the guiding portion 234 ensures 10 that 14 the canister 260, the vent pipe 216 and the drain pipe 222 do not interfere with any surrounding vehicle components.
[0052] Referring to FIGGURE 6A and FIGURE 6B, a mounting bracket 203 is provided with a lower portion of the breathing tank 202 for mounting the breathing tank 202 to the fuel inlet unit 209. For instance, the mounting bracket 203 can be 15 mounted to the fuel inlet flange 210 through screws 205 (shown in FIGURE 5). The breathing tank 202 further comprises a first spout 205a, a second spout 205b and a third spout 205c. The first spout 205a is fluidically connected to the first hose 204. The second spout 205b is fluidically connected to the second hose 206. The third spout 205c is fluidically connected to the third hose 208. 20
[0053] According to the above disclosure, the present disclosure provides various advantages. The present discloses provides an additional breathing/vapor tank connected to a fuel tank to receive fuel from the fuel tank when fuel tank gets heated up and pressure buildup in the fuel tank and prevent spillage of the fuel through a canister of the vehicle. Fixing the breathing tank disposed at a position such that a 25 portion of the breathing tank is projected above a fuel inlet unit and to receive fluid from the fuel tank when fuel tank gets heated up and pressure buildup in the fuel tank and fuel level rises from the fuel tank, prevents spillage of fuel through the canister. This also helps to enhance performance of the canister by preventing flow of fuel from the fuel tank to the canister. 30
[0054] In the foregoing specification, the disclosure has been described with reference to specific embodiments disclosed herein can be modified or otherwise
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implemented in various other ways without departing from the spirit and scope of the disclosure. Accordingly, this description is to be considered illustrative and is for the purpose of teaching those skilled in the art the manner of making and using various embodiments of the disclosure. It is to be understood that the forms of the disclosure herein shown and described are to be taken as representative 5 embodiments. Equivalent elements, materials processed or steps may be substituted for those representatively illustrated and described herein. Moreover, certain features of the disclosure may be utilized independently of the use of other features, all as would be apparent to one skilled in the art after having the benefit of this description of the disclosure. Expressions such as “including”, “comprising”, 10 “incorporating”, “consisting of”, “have”, and “is”, used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components, or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural. [0055] This written description uses examples to provide details on the disclosure, 15 including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have 20 structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims. , Claims:We Claim:
1. A fuel tank assembly (200) for a saddle type vehicle (10), the fuel tank assembly (200) comprising:
a fuel tank (250);
a fuel inlet unit (209) having a fuel inlet (212) for receiving fuel from 5 an external source, the fuel inlet (212) being fluidically connected to the fuel tank (250) through a fuel supply pipe (225); and
a breathing tank (202) fluidically connected to the fuel inlet unit (209) and the fuel tank (250), the berating tank (202) being configured to receive fluid from the fuel tank (250). 10
2. The fuel tank assembly (200) as claimed in claim 1, comprising:
a first hose (204), the first hose (204) being configured to fluidically connect the breathing tank (202) to the fuel tank (250);
a second hose (206), the second hose (206) being configured to 15 fluidically connect the breathing tank (202) to the fuel inlet unit (209); and
a third hose (208), third hose (208) being configured to fluidically connect the breathing tank (202) to a canister (260) of the fuel tank assembly (200), wherein the canister (260) is configured below the breathing tank (202). 20
3. The fuel tank assembly (200) as claimed in claim 1, wherein the breathing tank (202) is configured such that a portion of the breathing tank (202) is projected above the fuel inlet unit (209).
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4. The fuel tank assembly (200) as claimed in claim 1, wherein the fuel tank (250) is disposed under a floorboard (155) of the saddle type vehicle (10).
5. The fuel tank assembly (200) as claimed in claim 1, wherein the fuel inlet 5 unit (209) comprises:
a fuel inlet flange (210); and
a connecting pipe (211) protruded from the fuel inlet flange (210), wherein the connecting pipe (211) comprises a first portion (211A) extended above the fuel inlet flange (210) and having the fuel inlet (212), 10 and a second portion (211B) extended below the fuel inlet flange (210).
6. The fuel tank assembly (200) as claimed in claim 5, wherein the fuel supply pipe (225) comprises:
a first inlet pipe (230) coupled to the first portion (211A) of the 15 connecting pipe (211) at a first end (230A); and
a second inlet pipe (240) extending at least downwardly from the first inlet pipe (230), the second inlet pipe (240) having an intake end (240A) and an outlet end (240B), the intake end (240A) of the second inlet pipe (240) being coupled to a second end (230B) of the first inlet pipe (230), and 20 the outlet end (240B) of the second inlet pipe (240) being fluidically connected to the fuel tank (250), thereby supplying fuel received at the fuel inlet (212) to the fuel tank (250).
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7.The fuel tank assembly (200) as claimed in claim 5, wherein the fuel inletflange (210) comprises a receiver portion (218) surrounding the fuel inlet(212)to receive excess fuel spillage from the fuel inlet (212).
8.The fuel tank assembly (200) as claimed in claim 7, wherein the fuel inlet5 flange (210) comprises a drain spout (220) connected to a drain pipe (222),the drain pipe (222) being open at one end, for draining any excess fuelspillage from the fuel inlet (212) and collected at the receiver portion (218).
9.The fuel tank assembly (200) as claimed in claim 1, comprising a fuel cap10 (224)for covering the fuel inlet (212).
10.The fuel tank assembly (200) as claimed in claim 1, comprising a mountingbracket (203) for mounting the breathing tank (202) to the fuel inlet unit(209).