DESC:TECHNICAL FIELD
[0001] The present invention generally relates to a multi wheeled vehicle. More particularly, the present invention relates to a mounting arrangement of a gaseous fuel cylinder in the multi wheeled vehicle.
BACKGROUND
[0002] In the transportation landscape, multi wheeled vehicles, such as a three-wheeled vehicle, herein interchangeably referred as “vehicle” has emerged as a vital and widely adopted means for transporting goods. The compact nature, cost-effectiveness, and agility of the three-wheeled vehicles, render them a favored choice for businesses involved in local logistics, last-mile delivery, and the conveyance of diverse cargo.
[0003] Conventionally, the three-wheeled vehicles are equipped with either a two-stroke or a four-stroke engine, which operates on liquid fuels like petrol or diesel. The engine is typically positioned either at the rear of the vehicle or beneath the driver's seat in the front of the vehicle. The placement of the engine conventionally depends on the vehicle's specification and the intended purpose of the vehicle.
[0004] Conventionally, the front of the three-wheeled vehicle includes an enclosed driver's cabin. The driver’s cabin provides a comfortable and safe space for the driver and houses essential components, such as a steering mechanism and an instrument console. The driver’s cabin further includes a driver's seat, which provides an unobstructed view, facilitates precise control of the vehicle and ensuring the safety of both the driver and the cargo being transported.
[0005] The rear of the three-wheeled vehicle includes a dedicated area that serves as a cargo storage space or a passenger seating area. Depending on the intended use and configuration, the cargo storage space can be either an exposed pickup tray or an enclosed compartment for securely carrying an array of goods.
[0006] In many conventional three-wheeled vehicles the power assembly, such as the engine assembly, is commonly positioned at the vehicle's rear, beneath the cargo storage area. This arrangement optimizes space utilization, ensuring a compact vehicle design, while ensuring convenient access to the engine through a rear opening. The accessibility of the engine through the rear opening is crucial for regular maintenance and repairs, ensuring the vehicle's longevity and continued reliability.
[0007] With the increasing emphasis on environmental consciousness and the enforcement of stricter emissions regulations, the traditional three-wheeled vehicles are presented with a significant challenge. This challenge involves the need to adapt and reduce their carbon footprint. One feasible solution entails the transition from conventional liquid fuels like petrol and diesel to cleaner-burning gaseous alternatives, such as LPG (Liquefied Petroleum Gas) or CNG (Compressed Natural Gas). This transition can lead to a substantial reduction in emissions, making the vehicles more environmentally responsible and in alignment with evolving environmental mandates.
[0008] Furthermore, beyond the environmental advantages, the adoption of gaseous fuels brings forth economic benefits. Gaseous fuel cylinders such as LPG and CNG are typically more cost-effective when compared to traditional liquid fuels, resulting in significant operational cost savings for businesses. This economic advantage not only facilitates compliance with emissions regulations but also represents a sound business decision for those managing these three-wheeled goods vehicles.
[0009] Conventionally, gaseous fuel is stored in a refillable cylinder that is mounted on a suitable structure affixed to the vehicle's frame assembly. The refilling of this cylinder is carried out at designated filling stations, facilitated by a fitting nozzle provided on the vehicle for this purpose. Additionally, the gas cylinder is equipped with a shut-off valve to be used in case of emergencies.
[00010] However, these cylinders used for on-board storage of gaseous fuel pose challenges due to their bulkiness and weight in comparison to the unloaded or loaded weight of the vehicle. A typical cylinder for such applications weighs between 35kg to 65 kg. These weights represent approximately 10% to 15% of the unloaded vehicle weight and 5% to 7% of the loaded vehicle weight. Ideally, it is preferred to maintain a balanced weight distribution on all three wheels of the three-wheeled goods vehicle. Therefore, the choice of the mounting arrangement for the gaseous fuel cylinder becomes a challenge for vehicle designers.
[00011] Moreover, in scenarios where there is a need to mount multiple cylinders, the storage of such cylinders become challenging considering the space constraints, constrained layout of the existing vehicles, while maintaining the center of gravity of the vehicle, and considering neighboring components disposed within the vehicle.
[00012] Achieving balanced weight distribution on all three wheels of a three-wheeled goods vehicle is crucial for stability. The bulkiness and weight of gaseous fuel cylinders, representing a significant percentage of both unloaded and loaded vehicle weights, make it challenging to distribute the weight evenly. The limited space within the cargo vehicle poses challenges when mounting multiple cylinders. Considering the layout of existing vehicles and neighboring components, finding suitable locations without compromising space efficiency becomes a complex task.
[00013] Currently, some existing configurations position the gaseous fuel cylinder at the rear of the vehicle, behind the engine. In this setup, the rear wheels bear a substantial load, including the weight of the engine, gas cylinder, and a portion of the cargo carried on the tray, while the front wheel bears a comparatively lighter load. The substantial weight of the gaseous fuel cylinder can lead to driving instability, potentially causing the front wheel to lift due to a cantilever effect.
[00014] Furthermore, when the gas cylinder is mounted at the rear of the vehicle, the weight of the cylinder, in addition to the loaded pickup tray or storage compartment, creates a cantilever effect with the rear wheel axis as the fulcrum. This can result in driving instability as it tends to lift the front wheel. Moreover, having the cylinder at the rear exposes it to potential impacts from behind, raising safety concerns.
[00015] Additionally, the rear portion, often used for cargo storage, becomes challenging for accommodating more than one cylinder. Further, the concentration of weight, especially near the rear wheel axis, can lead to increased tire wear and additional stress on the rear wheels. This can impact the vehicle's performance and longevity.
[00016] Alternatively, some prior art suggests placing the gaseous fuel cylinder at the front of the engine, aligned with the vehicle's longitudinal axis or lengthwise, or placed either right or left of the vehicle’s longitudinal axis, to evenly distribute the weight on both left-hand side and right-side of the vehicle, however such positioning often creates problem in providing easy access for refilling of the one or more gaseous cylinder.
[00017] Furthermore, the placement of the gaseous fuel cylinder along the vehicle's longitudinal axis or right or left of the vehicle’s longitudinal axis requires elongated connecting tubes to connect the fuel inlet of the cylinder to the gaseous fuel inlet near the vehicle frame. This configuration leads to complex routing of these connecting tubes, incurring unnecessary costs.
[00018] Additionally, the increased weight towards the front of the vehicle can negatively impact steering and maneuverability. This can reduce the vehicle's responsiveness and potentially decrease its agility, especially when navigating through congested urban areas or tight spaces.
[00019] Furthermore, in the event of a collision or impact, having the gas cylinder at the front poses safety risks, as it may be more exposed to damage or rupture, potentially leading to gas leaks or other hazardous situations.
[00020] In scenarios where the engine or the power assembly is also placed at the front of the vehicle along with the gaseous fuel cylinder, an uneven weight distribution may occur, particularly if the engine is heavy. This exacerbates the weight distribution issue and further compromises vehicle stability.
[00021] Thus, there is a need for the art of a vehicle, which addresses at least the aforementioned problems.
SUMMARY OF THE INVENTION
[00022] The present subject matter discloses a multi-wheeled vehicle, such as a three wheeled vehicle, comprising of a front portion and a rear portion. The front portion includes a driver cabin, while the rear portion includes a chassis compartment. The chassis compartment of the vehicle is configured to accommodate one or more vehicular components. The rear portion R comprises of a load-carrying tray for carrying goods. The load carrying tray includes a raised first platform and a second platform positioned at a lower level. The load carrying tray covers the chassis compartment from the top. The second platform is positioned at a lower level than the raised first platform and separated from it by a partition wall. Together, the first platform, a portion of the chassis compartment, and the partition wall form a first housing area. Within the first housing area, two or more gaseous fuel cylinders are securely accommodated in the rear portion of the vehicle. Additionally, the remaining portions of the chassis compartment, the second platform and the partition wall form a second housing area, accommodating other vehicular components such as a power unit and exhaust system.
[00023] Furthermore, the two or more gaseous fuel cylinders are positioned along the vehicle’s lateral axis when viewed from the rear of the vehicle.
[00024] In another embodiment, each of the two or more gaseous fuel cylinders are positioned next to each other in a top-down direction when viewed from the rear of the vehicle. Because of the positioning of the two or more gaseous fuel cylinder along the vehicle’s lateral axis, multiple advantages are achieved. The positioning of the two or more gaseous fuel cylinder along the vehicle's lateral axis within the first housing, facilitates the allocation of bulky components such as the fuel tank, maintaining the centre of gravity and preventing cantilever effect.
[00025] Furthermore, because of positioning the two or more gaseous fuel cylinders along the vehicle’s lateral axis, weight distribution within the vehicle is optimized, enabling a more compact layout for accommodating bulky components without necessitating major structural changes.
[00026] By such positioning of the two or more gaseous fuel cylinder, the weight distribution becomes more centralized between the front and rear wheels. This balanced weight distribution not only improves driving stability but also amplifies steering control and manoeuvrability. Particularly in bustling urban environments, these enhancements render the vehicle more responsive and agile.
[00027] Further, such positioning of the two or more gaseous fuel cylinder reduces stress on the rear wheels, resulting in longer tire life and cost savings.
[00028] Further, such positioning of the two or more gaseous fuel cylinder minimizes overall exposure of the vehicle to potential impacts from both the front and rear of the vehicle. This minimizes the risk of damage or rupture of the two or more gaseous fuel cylinders in the event of a collision or impact, providing an additional layer of safety.
[00029] Moreover, such positioning of the two or more gaseous fuel cylinder simplifies the overall construction of the vehicle, reducing associated costs. It also streamlines servicing and maintenance, enhancing safety and efficiency.
[00030] Furthermore, such positioning of the two or more gaseous fuel cylinder offers more flexibility in designing the vehicle's layout and cargo space. It enables the optimization of available space for various purposes, such as accommodating passengers or cargo, without being constrained by the two or more gaseous fuel cylinder's location. It paves the way for modular vehicle designs, where different types of power assembly sources, such as gas, electric, or hybrid, can be accommodated without major structural modifications, enhancing versatility and adaptability.
[00031] As per another embodiment, a gaseous fuel inlet of each of the gaseous fuel cylinder is positioned in the same direction either towards a right long member or towards the left long member of the vehicle.
[00032] As per another embodiment, the gaseous fuel inlet of each of the gaseous fuel cylinder is positioned in the opposite direction of each other. For example, if the gaseous fuel inlet of a first gaseous fuel cylinder is facing the right long member, the gaseous fuel inlet of a second gaseous fuel cylinder is facing the left long member of the vehicle. Similarly, if the gaseous fuel inlet of a first gaseous fuel cylinder is facing the left long member, the fuel inlet of a second gaseous fuel cylinder is facing the right long member of the vehicle.
[00033] Because of the gaseous fuel inlet facing either of the right long member or the left long member, it is ensured that the requirement of the elongated connecting tubes to connect the fuel inlet of each of the gaseous fuel cylinder to the gaseous fuel filing unit near the vehicle frame, is obviated, allowing for direct and simple connections.
[00034] 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 present claimed subject matter.
BRIEF DESCRIPTION OF THE DRAWINGS
[00035] The details are described with reference to an embodiment of a vehicle along with the accompanying diagrams. The same numbers are used throughout the drawings to reference similar features and components.
[00036] Figure 1a illustrates a side view of an exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter.
[00037] Figure 1b and Figure 2 exemplarily illustrates a top view of an exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter.
[00038] Figure 3a and Figure 3b exemplarily illustrate top view of the exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter.
[00039] Figure 4a and Figure 4b exemplarily illustrate rear view of the exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter.
[00040] Figure 5 exemplarily illustrate top view of the exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION
[00041] In one aspect, the present invention is directed towards a three-wheeled vehicle, herein also referred to as “vehicle”.
[00042] Figure 1a illustrates a side view of an exemplary multi-wheeled vehicle, such as a three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter. The vehicle 100 is laterally divided into two portions, a front portion F and a rear portion R, along a line X-X’. The front portion F of the vehicle 100 comprises of a driver cabin 110 attached to a frame assembly 130 at a front of the vehicle 100. A first partition wall 110a is positioned along the line X-X’ extending in vehicle 100 up-down direction. The rear portion R comprises of a load-carrying tray 115 for carrying goods. In another embodiment, the rear portion R of the vehicle 100 has a long passenger seat (not shown) with a seating capacity of minimum three passengers. The vehicle 100 can be used as a passenger carrier vehicle or a load carrier vehicle.
[00043] The frame assembly 130 of the vehicle 100 includes a head tube (not shown) and a main frame assembly (not shown) extending rearward from the head tube. The vehicle 100 has a front cowl 180 positioned in front of the head tube. A floorboard (not shown) extends from a bottom portion of the front cowl 180, towards the rear portion R of the vehicle 100 and the floorboard is supported by a main frame (not shown). A handlebar assembly (not shown) is rotatably supported by the head tube. A steering assembly (not shown) comprising a front fork is connected to the handlebar assembly and aids in steering a front wheel 105. Two or more rear wheels 125 are connected to a swing arm (not shown) through one or more suspension(s) (not shown) on the rear of the vehicle 100.
[00044] A power assembly 140 (shown in Figure 2) is mounted to the frame assembly 130 on the rear portion R of the vehicle 100. In an embodiment, the power assembly 140 being one of an engine assembly or a battery. This configuration optimizes space utilization, ensuring a compact vehicle, while ensuring convenient access to the power assembly 140 through a rear opening (not shown). The accessibility of the power assembly 140 through the rear opening is crucial for regular maintenance and repairs, ensuring the vehicle's longevity and continued reliability. The vehicle 100 further includes two or more gaseous fuel cylinders (155, 156) positioned along the vehicle’s lateral axis of the vehicle 100.
[00045] In an embodiment, the engine assembly comprises of an IC engine (not shown), a transmission system (not shown), which is functionally connected to the rear wheels 125 for transmitting power from the engine assembly.
[00046] Figure 1b exemplarily illustrates a top view of an exemplary three-wheeled vehicle 100, in accordance with an embodiment of the present subject matter. The load-carrying tray 115 includes a raised first platform 115a and a second platform 115b positioned at a lower level. The load carrying tray 115 covers a chassis compartment 135 (shown in Figure 2) of the vehicle 100 from the top. The second platform 115b is positioned at a lower level than the raised first platform 115a and separated from it by a second partition wall 115c. Together, the first platform 115a, a portion of the chassis compartment 135, and the second partition wall 115c form a first housing area. Within the first housing area, two or more gaseous fuel cylinders (155, 156) (shown in Figure 1a) are securely accommodated in the rear portion R of the vehicle 100. Additionally, the remaining portions of the chassis compartment 155, the second platform 115b and the second partition wall 115c form a second housing area, accommodating other vehicular components such as a power assembly 140 (shown in Figure 2) and an exhaust assembly 145 (shown in Figure 2).
[00047] Figure 2 exemplarily illustrates a top view of an exemplary three-wheeled vehicle (100), in accordance with an embodiment of the present subject matter. The present embodiment illustrates the top view of the three-wheeled vehicle 100 with the first platform 115a, and the second partition wall 115c of the load-carrying tray 115 (shown in Figure 1b). The frame assembly 130 includes the head tube (not shown), and the main frame (not shown). The main frame comprises of a main tube (not shown), a centre long member (not shown) rigidly attached to the main tube. The main frame further comprises of a right long member 130a, and a left long member 130b. The right long member 130a and the left long member 130b are parallelly connected to each other by means of a middle cross member 130e, and a rear cross member 130d (shown in Figure 3), such that the right long member 130a and the left long member 130b extend in a direction substantially parallel to the lateral direction of the vehicle 100. The main frame also comprises an engine suspension member 130c. The right long member 130a and the left long member 130b extend longitudinally from a substantially a front portion F of the vehicle 100 to a substantially rear portion R of the vehicle 100. The space between the load-carrying tray 115 and the frame assembly 130 on the rear portion R of the vehicle 100, includes a chassis compartment 135. The chassis compartment 135 is configured to accommodate vehicular components, such as the power assembly 140, two or more gaseous fuel cylinder (155, 156) (shown in Figure 4a), an exhaust assembly 145, a fuel tank assembly 150 (shown in Figure 3).
[00048] On or near the axis of the rear wheels 125, the power assembly 140 is mounted on the frame assembly 130, by means of the engine suspension member 130c. The engine suspension member 130c is connected to the left long member 130b and the right long member 130a on each left and right side of the vehicle 100, by means of at least one joining structure 130cc. Further, the exhaust assembly 145 is mounted on the rear most part of the rear portion R of the vehicle 100, behind the engine assembly 140.
[00049] Figure 3a and Figure 3b exemplarily illustrate top view of the exemplary three-wheeled vehicle 100, in accordance with an embodiment of the present subject matter.
[00050] Figure 4a and Figure 4b exemplarily illustrate rear view of the exemplary three-wheeled vehicle 100, in accordance with an embodiment of the present subject matter.
[00051] Figure 5 exemplarily illustrate top view of the exemplary three-wheeled vehicle 100, in accordance with an embodiment of the present subject matter.
[00052] Figure 4a and 4b exemplarily illustrates positioning of the two or more gaseous fuel cylinders (155, 156) positioned along the vehicle’s lateral axis when viewed from the rear of the vehicle 100.
[00053] Each of the two or more gaseous fuel cylinder (155, 156) is securely mounted on a support structure (not shown) attached to the frame assembly 130. The support structure is configured to be attached or affixed or integrated with the frame assembly 130, preferably by welding to the frame assembly 130. The support structure (not shown) is positioned substantially in proximity of the first partition wall 110a of the driver cabin 110.
[00054] At least one holding or resting bracket (not shown), is fixed to the support structure. The at least one holding or resting bracket substantially of the shape confirming with the outer surface of each of the two or more gaseous fuel cylinder (155, 156), extending downward, creating space for accommodating each of the two or more gaseous fuel cylinder (155, 156). The at least one holding bracket is equipped with known fastening arrangement. At least one securing clamp, featuring threaded portions at its end, is wrapped around each of the two or more gaseous fuel cylinder (155, 156) and tightened using the fastening arrangement, for securing the two or more gaseous fuel cylinder (155, 156) in position. The two or more gaseous fuel cylinder (155, 156) is securely fastened with the adjustment of the conventional nuts provided in the fastening arrangement.
[00055] In an embodiment, a rubber padding is inserted between the lower outer surface of each of the two or more gaseous fuel cylinder (155, 156) and the inner surface of the holding bracket, as well as between the upper outer surface of the each of the two or more gaseous fuel cylinder (155, 156) and the at least one securing clamp to dampen vibrations transmitted to the each of the two or more gaseous fuel cylinder (155, 156) from the vehicle 100.
[00056] In the present invention, the vehicle 100 includes the at least one gaseous fuel cylinder (155, 156) is configured to be disposed in the chassis compartment 135 of the rear portion R, behind the driver cabin 110 and in front of the power assembly 140. In the present invention, the two or more gaseous fuel cylinders (155, 156) are positioned along a vehicle’s lateral axis (A’B’) when viewed from the rear of the vehicle 100. The vehicle’s lateral axis (A’B’) refers to an imaginary line passing horizontally through the vehicle's centre from one side to the other, which is perpendicular to the vehicle’s longitudinal axis (A.B). In other words, it represents the axis around which the vehicle can turn left or right when steering. In in a three-wheeled vehicle 100, the lateral axis would extend across the width of the vehicle 100 from one side to the other.
[00057] Each of the two or more gaseous fuel cylinders (155, 156) are positioned next to each other in a top-down direction when viewed from the rear of the vehicle. Because of the positioning of the two or more gaseous fuel cylinders (155, 156) along the vehicle’s lateral axis (A’B’), multiple advantages are achieved. The positioning of the two or more gaseous fuel cylinders (155, 156) along the vehicle's lateral axis (A’B’) within the first housing, facilitates the allocation of bulky components such as the fuel tank assembly (150), maintaining the centre of gravity and preventing cantilever effect.
[00058] Furthermore, because of positioning the two or more gaseous fuel cylinders (155, 156) along the vehicle’s lateral axis, weight distribution within the vehicle 100 is optimized, enabling a more compact layout for accommodating bulky components without necessitating major structural changes.
[00059] By such positioning of the two or more gaseous fuel cylinder (155, 156), the weight distribution becomes more centralized between the front and rear wheels. This balanced weight distribution not only improves driving stability but also amplifies steering control and manoeuvrability. Particularly in bustling urban environments, these enhancements render the vehicle more responsive and agile. Further, such positioning of the two or more gaseous fuel cylinders (155, 156) reduces stress on the rear wheels, resulting in longer tire life and cost savings. Further, such positioning of the two or more gaseous fuel cylinder (155, 156) minimizes overall exposure of the vehicle to potential impacts from both the front and rear of the vehicle. This minimizes the risk of damage or rupture of the each of the gaseous fuel cylinder (155, 156) in the event of a collision or impact, providing an additional layer of safety.

[00060] Thereby the present configuration of the two or more gaseous fuel cylinder (155, 156), ensures that each of the gaseous fuel cylinder (155, 156) is optimally positioned for safety, balance, and efficient use within the vehicle's overall structure.
[00061] In an embodiment, the two or more gaseous fuel cylinder (155, 156), are disposed between the driver cabin 110 and the power assembly 140.
[00062] In an embodiment, the chassis compartment 135 is an accommodating space between the frame assembly 130 of the vehicle 100 and one of a load-carrying tray 115 and an enclosed luggage compartment of the vehicle 100.
[00063] In another embodiment, each of two or more gaseous fuel cylinder (155, 156), includes a gaseous fuel inlet 155a, 156a. Each of the gaseous fuel inlets (155a, 156a) facilitates the loading or refilling of the two or more gaseous fuel cylinder (155, 156).
[00064] The gaseous fuel inlet (155a, 156a) of each of the two or more gaseous fuel cylinder (155, 156) is positioned in the same direction either towards a right long member 130a or towards the left long member 130b of the vehicle 100.
[00065] As per another embodiment, the gaseous fuel inlet (155a, 156a) of each of the two or more gaseous fuel cylinder (155, 156) are positioned in the opposite direction of each other. The two or more gaseous fuel cylinder (155, 156) includes a first gaseous fuel cylinder 155, and a second gaseous fuel cylinder 156.
[00066] In an embodiment, if the gaseous fuel inlet 155a of a first gaseous fuel cylinder 155 is facing the right long member 130a, the gaseous fuel inlet 156a of a second gaseous fuel cylinder 156 is facing the left long member 130b of the vehicle 100. Similarly, if gaseous fuel inlet 155a of a first gaseous fuel cylinder 155 is facing the left long member 130b, the gaseous fuel inlet 156a of a second gaseous fuel cylinder 156 is facing the right long member 130a of the vehicle 100.
[00067] Because of the gaseous fuel inlets 155a, 156a facing either of the right long member 130a or the left long member 130b, it is ensured that the requirement of any elongated connecting tubes to connect the gaseous fuel inlets 155a, 156a of each of the gaseous fuel cylinders (155, 156) to the gaseous fuel filing unit near the vehicle frame 130, is obviated, allowing for direct and simple connections. The gaseous fuel filling unit 120 is affixed with one of the right long members 130a and the left long member 130b of the frame assembly 130 of the vehicle 100. The gaseous fuel filling unit 120 serves as a conduit for gaseous fuel filling.
[00068] Further as per another embodiment, a separate connecting tube (not shown) connects each of the gaseous fuel cylinders (155, 156) to the power assembly 140.
[00069] Further, the present configuration one of the two or more gaseous fuel cylinder 155, 156 along the lateral axis of the vehicle 100, ensures more flexibility in designing the vehicle's layout and cargo space for accommodating multiple gaseous fuel cylinders 155, 156 along with other vehicular components. It may allow for optimizing the use of available space for various purposes, such as accommodating passengers or cargo, without being constrained by the at least one gaseous fuel cylinder's location. Further, such positioning may enable the development of modular vehicle layout, where different types of power assembly sources (e.g., gas, electric, hybrid) or an additional gaseous fuel cylinder can be accommodated without major structural modifications, enhancing versatility and adaptability.
[00070] Further, the placement of the two or more gaseous fuel cylinder 155 along the lateral direction of the vehicle 100, can make a vehicle adaptable to various vehicle types, not limited to three-wheeled vehicles. It may also be suitable for other types of vehicles, including four-wheelers or different vehicle categories, where balanced weight distribution is crucial for stability and safety.
[00071] Further, in an embodiment the vehicle 100 is provided with a safety shut-off valve. The safety shut-off valve is disposed beside the gaseous fuel filling unit 120, to ensure the safe and complete filling of the gaseous fuel in the vehicle 100. This safety feature can help prevent overfilling, leaks, or other potential hazards associated with gaseous fuel filling in the at least one gaseous fuel cylinder 155. In an embodiment, there may be multiple gaseous fuel filling unit 120 corresponding to each of the gaseous fuel cylinder (155, 156). In another embodiment, a single gaseous fuel filling unit 120 may be used to fuel filling in multiple gaseous fuel cylinder (155, 156).
[00072] Further, the vehicle 100 includes a fuel tank assembly 150 disposed in proximity of the two or more one gaseous fuel cylinder (155, 156). The fuel tank assembly 150 includes a fuel filling unit 175 being affixed with one of a right long member 130a and a left long member 130b of a frame assembly 130 of the vehicle 100.
[00073] In an embodiment the fuel filling unit 175 is affixed on the opposite long member (130a, 130b) of the frame assembly 130 on which is the gaseous fuel filling unit 120 is affixed. For example, if the fuel filling unit 175 is affixed to the right long member 130a, the gaseous fuel filling unit 120 is affixed to the left long member 130b.
[00074] In another embodiment, the gaseous fuel filling unit 120 is and the two or more gaseous fuel cylinder (155, 156) is configured to be positioned just behind the two or more gaseous fuel cylinders (155, 156), offering advantages related to compact packaging, structural integrity, weight distribution, load capacity, maintenance efficiency, customization, safety, and manufacturing.
[00075] Further, such separation of the filling units (175, 120) can simplify access for servicing and maintenance. It makes it easier to identify the different fuel filling units (175, 120). Further, such separation of the filling units (175, 120) along with the fuel tank assembly 150 and the gaseous fuel cylinders (155, 156) makes it easier for service person to work on each component independently without disassembling or navigating around other components, leading to more efficient and cost-effective maintenance procedures.
[00076] The present subject matter is described using an exemplary three wheeled vehicle, whereas the claimed subject matter can be used in any other type of vehicle employing above-mentioned gaseous fuel cylinder, with required changes and without deviating from the scope of invention. Further, it is intended that the disclosure and examples given herein be considered as exemplary only.
List of Reference numerals

100: vehicle/ multi wheeled vehicle
F: front portion
R: rear portion
105: front wheel
110: driver cabin
110a: first partition wall
115: load-carrying tray
115a: first platform
115b: second platform
115c: second partition wall
120: gaseous fuel filling unit
125: rear wheel
130: frame assembly
130a: right long member
130b: left long member
130c: engine suspension member
130cc: joining structure
130d: rear cross member
130e: middle cross member
135: chassis compartment
140: power assembly
150: fuel tank assembly
155, 156: gaseous fuel cylinder
155a, 156b: gaseous fuel inlet
175: fuel filling unit
180: front cowl
185: wind shield
AB: longitudinal axis
A’B’: lateral axis
,CLAIMS:We Claim:
1. A multi wheeled vehicle (100) comprising:
a front portion (F) including a driver cabin (110); and
a rear portion (R) including a chassis compartment (135), said chassis compartment (135) being covered by a load carrying tray (115),
wherein said load carrying tray (135) includes a first platform (115a) and a second platform (115b),
wherein said first platform (115a) being configured to be disposed at a position higher than said second platform (115b) and being separated by a second partition wall (115c),
wherein said first platform (115a), said second partition wall (115c) and at least a portion of said chassis compartment (135) together being configured to house two or more gaseous fuel cylinders (155, 156),
wherein said two or more gaseous fuel cylinders (155, 156) being disposed along a vehicle’s lateral axis (A’B’) behind said driver cabin (110) and in front of a power assembly (140) of said multi wheeled vehicle (100).
2. The multi wheeled vehicle (100) as claimed in claim 1, wherein said two or more gaseous fuel cylinders (155, 156) being disposed between said driver cabin (110) and the power assembly (140).
3. The multi wheeled vehicle (100) as claimed in claim 1, wherein said power assembly (140) being one of a battery, and an engine assembly.
4. The multi wheeled vehicle (100) as claimed in claim 1, wherein said chassis compartment (135) being an accommodating space between a frame assembly (130) of said multi wheeled vehicle (100) and the load carrying tray (115) of said multi wheeled vehicle (100).
5. The multi wheeled vehicle (100) as claimed in claim 1, wherein said two or more gaseous fuel cylinders (155, 156) being mounted on at least one support structure, said at least one support structure being configured for being attached with said frame assembly (130), wherein said at least one support structure being positioned substantially in proximity of a first partition wall (110a) of said driver cabin (110).
6. The multi wheeled vehicle (100) as claimed in claim 1, wherein a gaseous fuel inlet (155a, 156b) of each of said two or more gaseous fuel cylinders (155, 156) being positioned in one of a same direction and opposite direction.
7. The multi wheeled vehicle (100) as claimed in claim 6, wherein a connecting tube being configured to connect each of said gaseous fuel inlet (155a, 156b) of each of two or more gaseous fuel cylinder (155, 156) to a power assembly (140).
8. The multi wheeled vehicle (100) as claimed in claim 1, wherein said multi wheeled vehicle (100) includes at least one gaseous fuel filling unit (175) being affixed with one of a right long member (130a) and a left long member (130b) of a frame assembly (130) of said multi wheeled vehicle (100).
9. The multi wheeled vehicle (100) as claimed in claim 1, wherein said multi wheeled vehicle (100) includes a safety shut-off valve, wherein said safety shut-off valve being disposed beside at least one gaseous fuel filling unit (120).
10. The multi wheeled vehicle (100) as claimed in claim 1, wherein said multi wheeled vehicle (100) includes a fuel tank assembly (150) being configured to be disposed in proximity of the two or more gaseous fuel cylinder (155, 156).
11. The multi wheeled vehicle (100) as claimed in claim 1, wherein said fuel tank assembly (150) includes a fuel filling unit (175) being affixed with one of a right long member (130a) and a left long member (130b) of a frame assembly (130) of said multi-wheeled vehicle (100), wherein said fuel filling unit (175) being configured to be disposed behind said two or more one gaseous fuel cylinder (155, 156).
12. The multi wheeled vehicle (100) as claimed in claim 1, wherein said two or more gaseous fuel cylinder (155, 156) includes at least one holding bracket fixed to said support structure, wherein said at least one holding bracket being substantially of a shape confirming with an outer surface of each of said two or more gaseous fuel cylinder (155, 156), extending downward, creating a space for accommodating the at least one gaseous fuel cylinder (155, 156).
13. The multi wheeled vehicle (100) as claimed in claim 1, wherein said two or more gaseous fuel cylinders (155, 156) includes at least one securing clamp, said at least one securing clamp being configured to be wrapped around the at least one gaseous fuel cylinder (155, 156) for securing each of the two or more gaseous fuel cylinder (155, 156) in position.