Technical Field

[0001] The present subject matter relates generally to fuel system for a vehicle and more particularly, but not exclusively, to a fuel control device for the fuel system of the vehicle.

Background

[0002] Generally, fuel tank for two and/or three wheeled vehicles is capable of holding a predetermined quantity of fuel that is necessary for running a substantial distance. The capacity of the fuel tank in two-wheeled vehicles depend on several factors, for example, type of the vehicle, segment of the vehicle, engine capacity of the vehicle, targeted group of riders, planned geography of travel etc. For example, vehicles designed for racing purposes usually includes a fuel tank that is larger in capacity as compared to the vehicles designed for city ride purposes. [0003] Generally, in two and/or three wheeled vehicles, a specific quantity of fuel is reserved for later use when the main fuel capacity runs out. This fuel is generally called as reserve fuel. Generally, quantity of fuel to be reserved is decided by the manufacturer again depending on various factors including the fuel tank capacity, engine capacity etc.

Brief Description of the Drawings

[0004] The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawings to reference like features and components.

[0005] FIG. 1 illustrates a fuel system of a two wheeled vehicle, in accordance with an embodiment of the present subject matter.

[0006] FIG. 2 illustrates an exploded view of a fuel control device of a fuel system, in accordance with an embodiment of the present subject matter.

[0007] FIG. 3 (a) illustrates a sectional side view of the fuel control device depicting a main fuel line, in accordance with an embodiment of the present subject matter.

[0008] FIG. 3 (b) illustrates a sectional front view of the fuel control device depicting a main fuel line, in accordance with an embodiment of the present subject matter.

[0009] FIG. 4 (a) illustrates a sectional side view of the fuel control device depicting a reserve fuel line, in accordance with an embodiment of the present subject matter.

[00010] FIG. 4 (b) illustrates a sectional front view of the fuel control device depicting a reserve fuel line, in accordance with an embodiment of the present subject matter.

[00011] FIG. 4 (c) illustrates a sectional top view of the fuel control device depicting a reserve fuel line, in accordance with an embodiment of the present subject matter.

Detailed Description

[00012] Conventionally, in case of all vehicles including two, three and four wheeled vehicles, when the main fuel runs out, the rider or the driver is provided with an option of manually choosing the reserve line by operating a reserve fuel knob. More particularly, in case of two-wheeled vehicles such as motorcycles, the knob is disposed underneath the fuel tank, generally on the left side. By opting to use the fuel in the reserve line, the rider ensures that the motorcycle is ridden for a substantial distance before re-filling.

[00013] Usually, provision of reserve fuel enables the rider to realize that the fuel in the fuel tank has reached a low level. This is true in case of two-wheelers provided with analogue fuel gauges that provide fuel level reading with less accuracy. In addition, having fuel in reserve other than main fuel supply also acts as a warning to the rider indicating that the fuel level is low. This acts as a great boon to riders even under circumstances when the analogue fuel gauge malfunctions.

[00014] Generally, the control for operating reserve fuel is provided in the form of a knob that is capable of being alternatively disposed between a main fuel position and a reserve fuel position. In certain motorcycles, a third option in the form of fuel off position is also additionally provided. In most circumstances, when the main fuel is exhausted, the engine stops running prompting the rider to change the knob from main fuel position to reserve fuel position in order to continue riding with a known small quantity of fuel. It is often possible for the rider to notice a jerk accompanied with a sputtering sound caused due to gradual reduction in fuel flow to engine and change the position of the knob to reserve position even before the engine stops running.

[00015] Conventionally, the construction of the fuel tank can remain unchanged for provision of reserve fuel. For example, two outlets can be provided, each of which disposes main and reserve fuel respectively in such a manner that one outlet is located a short distance above the other so that when the main fuel position is selected, the fuel will flow from an upper outlet of the two outlets, and will stop flowing when the fuel level reduces below the upper outlet. At this instance, when the rider selects the reserve fuel position, the fuel starts flowing through a lower outlet of the two outlets. Further, in most cases, selecting the reserve fuel position allows access to all fuel left in the fuel tank, rather than from a dedicated portion of the fuel tank. In several circumstances, leaving the knob in the reserve fuel position even after fully filling the fuel tank with fuel may lead to depletion of the main fuel supply as well as the reserve fuel supply leaving the rider with no warning whatsoever before the fuel drains out completely.

[00016] Further, conventional scooters are also provided with an auto fuel cock (AFC) that enables automatic control of fuel outlet from the fuel tank. Generally, manually controlled knobs are not possible to be used in scooters unlike motorcycles as it is not possible to provide such controls in the vicinity of fuel tank that is disposed underneath driver's seat.

[00017] Conventional AFCs are provided with automatic control that allows the fuel to flow through the AFC when the engine is in running condition and prevent passage of fuel when the engine is not running. In most cases, the automatic control of fuel passage through the AFC is achieved by supplying vacuum to the AFC when the engine is turned on allowing the fuel to flow through the AFC.

[00018] However, in such conventionally known AFCs, there is no demarcation made between main fuel supply and reserve fuel supply as in the case of motorcycles. Hence, it often leaves the rider with no idea of when the fuel in the fuel tank will exhaust, more particularly when the fuel gauge malfunctions.

[00019] Recently, lot of work is centred on providing a low fuel level indicator with the help of mechanical floats. The downside with such mechanical float are that the low level indicator keeps fluctuating during the motion of the vehicle as the fuel level continuously trifle around the low level mark leaving the rider confused about the correct fuel level. Further, the trifling nature of such low level fuel indicators does not help the cause of the riders in accurately ascertaining the fuel efficiency of the vehicle.

[00020] The present subject matter is directed at providing a fuel control device that overcomes the above mentioned problems associated with the manual fuel control knobs and the conventional AFCs. In one embodiment, the present subject matter provides an automatic fuel control device having a main fuel line and a reserve fuel line.

[00021] In an embodiment, the main fuel line of the fuel control device of the present subject matter is capable of being operated when the fuel in the fuel tank is above a top portion of fuel level pipe. Subsequently, when the fuel in the fuel tank reaches a level below the top portion of the fuel level pipe, the fuel stops flowing through the main fuel line and starts flowing through a reserve fuel line disposed adjoining the main fuel line of the fuel control device.

[00022] Further, in an embodiment, the main fuel line and/or the reserve fuel line of the fuel control device is operated only when the internal combustion engine of the two-wheeled vehicle is in running condition and remains in a non-operable state when the engine of the two-wheeled vehicle is not in running condition.

[00023] In an embodiment, when the engine is in running condition and when the fuel in the fuel tank is above the top portion of the fuel level pipe, the fuel from the fuel tank continues to flow through the main fuel line and eventually is sent to the engine from the fuel control device through a fuel outlet spout. During this state, the reserve fuel line is kept closed. In one embodiment, the reserve fuel line can be closed mechanically with the help of mechanical valve disposed at an advantageous location that enable the rider of the two-wheeled vehicle to selectively operate between main fuel line and the reserve fuel line.

[00024] In an embodiment where it is not considered advantageous for providing a manually operable mechanical valve that selectively operates between the main fuel line and the reserve fuel line, especially in case of two-wheeled vehicles such as scooters, it is desirable to control the opening and closing of the reserve fuel line electromechanically. For example, in one embodiment, a solenoid valve is advantageously disposed that includes a plunger. The plunger of the solenoid valve is disposed against and towards the reserve fuel line in such a manner that the reserve fuel line is kept closed when the fuel is flowing through the main fuel line and eventually when the fuel in the fuel tank remains above the top portion of the fuel level pipe. In another embodiment, the opening and closing of the reserve fuel line can be mechanically controlled.

[00025] In an embodiment, when the fuel in the fuel tank reduces below the top portion of the fuel level pipe, the fuel enters the fuel control device through the reserve fuel line. However, the fuel may still not send to the engine as the solenoid valve is kept in the closed state. In an embodiment, the solenoid valve can be opened electically, for example, by using a control switch that is capable of being operated by the rider of the two-wheeled vehicle. For example, opening the solenoid valve causes the plunger of the solenoid valve to be disposed away from the reserve fuel line allowing the fuel to pass through the reserve fuel line and eventually to the engine. In another embodiment, the fuel control device of the present subject matter enables a three-wheeled vehicle to control the reserve fuel line by means of the solenoid valve arrangement ensuring the driver of the three-wheeled vehicle to select the reserve fuel line when the fuel level reduces below the top portion of the fuel level pipe.

[00026] The present subject matter provides the fuel control device that has several advantages. For example, the fuel control device of the present subject matter combines the reserve fuel line with the auto fuel cock enabling the rider of the scooter to achieve the advantage associated with reserving certain quantity of fuel for later use. Further, the fuel control device of the present subject matter provides automatic control of fuel supply when the engine is not in running condition. Furthermore, the fuel control device of the present subject matter provides an accurate level of the fuel inside the fuel tank when the fuel reaches below the top portion of the fuel level pipe. This is unlike the conventional low fuel level indicating mechanisms where the indication by means of float that lacks accuracy. Moreover, the solenoid valve of the fuel control device of the present subject matter acts as a simple electromechanical device that is controlled by a known switch for accurately opening and closing the reserve fuel line. Furthermore, the fuel control device of the present subject matter enables easy and accurate method of determining fuel efficiency of the two-wheeled vehicle as the quantity of fuel below the top portion of the fuel level pipe is constant. The provision of reserve fuel line in scooter type two-wheeled vehicles enable the rider to advantageously fill the fuel in the fuel tank once the fuel level recedes below the top portion of the fuel level pipe. Further, the present subject matter advantageously allows the rider to close the reserve fuel line after refilling the fuel tank by switching off the switch thereby preventing fuel flow through both the main and the reserve fuel lines.

[00027] These and other advantages of the present subject matter would be described in greater detail in conjunction with the figures in the following description.

[00028] FIG. 1 illustrates a fuel system of a vehicle, in accordance with an embodiment of the present subject matter. In particular, the Figure 1 illustrates a fuel system 100 for a two-wheeled scooter type vehicle. In an embodiment, the fuel system 100 includes a fuel tank 102 disposed on a rear side of vehicle frame 106 underneath a seat (not shown). In an embodiment, the fuel tank 102 is disposed in such a manner that enough space is available for mounting a fuel control device 108 on a bottom surface of the fuel tank 102. In another embodiment, the fuel control device 108 is mounted on the vehicle frame 106 adjacent to the bottom surface of the fuel tank 102. In an embodiment, the fuel control device 108 is also called as an auto fuel cock 108. The auto fuel cock 108 is so disposed that it allows the passage of fuel to an internal combustion engine (not shown) when the vehicle is in running condition and do not allow the passage of the fuel to the engine when the vehicle is not in running condition. [00029] In an embodiment, the fuel tank 102 is covered by means of a fuel tank cap 104 and is provided with a capacity of approximately 4 to 6 litres of fuel storage. In an embodiment, the fuel tank 102 is constructed in such a manner that a certain quantity of fuel, for example, approximately 0.5 to 1.5 litres of the 4 to 6 litres of main fuel is retained as a reserve fuel.

[00030] FIG. 2 illustrates an exploded view of the fuel control device 108, in accordance with an embodiment of the present subject matter. In an embodiment, the fuel control device 108 includes a fuel cock body 208 disposed substantially downward to the fuel tank 102 in such a manner that the fuel automatically flows out from the fuel tank 102 due to gravity. In one embodiment, the fuel cock body 208 includes a manifold cover 210 covering a front side of the fuel cock body 208. In an embodiment, the manifold cover 210 includes a vacuum spout 230 downwardly disposed in a direction away from the fuel tank 102 and towards ground surface. For example, the vacuum spout 230 is capable of being coupled to a vacuum hose (not shown) connected to an inlet port of the engine. The starting of the engine ensures that vacuum is created in the fuel cock body 208 through the vacuum spout 230 enabling suction of a diaphragm 218 towards the manifold cover 210. During this condition, the diaphragm is drawn against the manifold cover 210 by means of an intermittently disposed spring element 222. In an embodiment, the spring element 222 is held tightly in between a stiffener 220 and an orifice plate 224. In one embodiment, the manifold cover 210 encloses the diaphragm 218, the spring element 222, the stiffener 220, the orifice plate 224, and a sealing element 226 of the fuel cock body 208.

[00031] In an embodiment, the fuel cock body 208 of the fuel control device 108 includes a fuel outlet spout 216 that is capable of being coupled to a fuel outlet hose (not shown) that carries the fuel from the fuel cock body 208 to the engine. In one embodiment, the fuel outlet spout 216 is disposed substantially perpendicular to the ground surface so as to enable gravitational flow of fuel from the fuel cock body 208 to the engine.

[00032] In an embodiment, the fuel cock body 208 has a rear side diametrically opposite to the front side. In one embodiment, the rear side of the fuel cock body 208 includes a fuel cock packing 228. For example, the fuel cock packing 228 has a cylindrical cross-section having disposed therein a plurality of passages in the form of a plurality of slots (shown in Fig. 4 (b)). The fuel cock packing 228 is disposed in such a manner that each slot of the plurality of slots makes communicating channel with the fuel cock body 208 ensuring passage of fuel. Further, the fuel cock packing 228 selectively control the passage of fuel to the engine by controlling the opening and closing of one or more slots of the plurality of slots disposed on the fuel cock packing 228. This further ensures that the flow of main fuel and the reserve fuel from the fuel tank 102 is controlled by the fuel cock body 208.

[00033] In one embodiment, the fuel cock packing 228 is held against the rear side of the fuel cock body 208 by means of a solenoid valve cover 212. In one embodiment, the solenoid valve cover 212 includes at least one opening for receiving a solenoid valve 214. In an embodiment, the solenoid valve 214 includes a plunger (shown in Fig. 4 (a)) disposed within at least one opening of the solenoid valve cover 212 and against at least one slot of the plurality of slots disposed on the fuel cock packing 228. In an embodiment, the plunger of the solenoid valve 214 is held against the at least one slot of the plurality of slots disposed on the fuel cock packing 228 when the main fuel is passed through the fuel cock body 208. Further, when the reserve fuel is passed through the fuel cock body 208, the plunger of the solenoid valve is disposed away from the at least one slot of the plurality of slots disposed on the fuel cock packing 228 allowing the reserve fuel to pass through the fuel cock body 208. For example, in an embodiment, the solenoid valve 214 is electrically controlled by a switch (not shown) disposed in the vicinity of instrument panel (not shown) of the two-wheeled vehicle such that the switch is easily controlled by rider of the two-wheeled vehicle and is capable of alternatively selected between an on-mode and an off-mode.

[00034] Further, in an embodiment, the fuel cock body 208 is mounted on the bottom surface of the fuel tank 102 by means of a joint packing 206. In one embodiment, the joint packing 206 is coupled with a centrally disposed fuel level pipe 204. For example, the fuel level pipe 204 is disposed substantially perpendicular to the joint packing 206 and inside the fuel tank 102. In one embodiment, fuel from the fuel tank 102 enters the fuel cock body 208 through the fuel level pipe 204. Further, in an embodiment, the fuel level pipe 204 is circumferentially enclosed by means of a fuel strainer screen 202 that acts as a filtering element. For example, the fuel strainer screen 202 includes finite meshes circumferentially disposed around the fuel level pipe 204 ensuring that the fuel entering the fuel level pipe 202 is filtered from all form of impurities.

[00035] FIG. 3 (a) illustrates a sectional side view of the fuel control device 108 depicting a main fuel line 302, in accordance with an embodiment of the present subject matter. In an embodoiment, the main fuel line 302 includes the fuel flowing from the fuel tank 102 through the fuel cock body 208 to the engine. In an embodiment, the fuel level pipe 204 is disposed inside the fuel strainer screen 202 in such a manner that an inner space is created between an inner circumference of the fuel strainer screen 202 and an outer circumference of the fuel level pipe 204. In an embodiment, the fuel entering the inner space forms part of a reserve fuel line 304 of the present subject matter.

[00036] In an embodiment, the passage of vacuum 310 inside the vacuum spout 230 ensures that the diaphragm 218 is drawn against the manifoldcover 210 allowing the fuel from the fuel tank 102 to pass through the main fuel line 302 of the present subject matter. In the main fuel line 302, fuel flowing in 306 through the fuel level pipe 204, passes inside the fuel cock body 208 and enters at least one slot of the plurality of slots disposed on the fuel cock packing 228 before passing through another slot of the plurality of slots that delivers fuel in a space created in the manifold cover 210 enclosure of the fuel cock body 208. The fuel entering the space created in the fuel cock body 208 due to the away movement of the diaphragm 218 flows out 308 through the fuel outlet spout 216 to the engine. [00037] FIG. 3 (b) illustrates a sectional front view of the fuel control device 108 depicting the main fuel line 302, in accordance with an embodiment of the present subject matter.In an embodiment, the fuel entering the main fuel line 302 passes gravitationally downward into .the fuel cock body 208. In one embodiment, the fuel passes through a first slot 314 of the plurality of slots disposed on the fuel cock packing 228 and enters a second slot 316 of the plurality of slots disposed on the fuel cock packing 228, substantially parallel and adjacent to the first slot 314. The fuel entering the second slot 316 is forced out of the fuel cock body 208 due to the presence of vacuum 310 in the fuel cock body 208 that holds the diaphragm 218 against the manifold cover 210.

[00038] FIG. 4 (a) illustrates a sectional side view of the fuel control device 108 depicting a reserve fuel line 304, in accordance with an embodiment of the present subject matter. In one embodiment, as long as the fuel level remains above a top portion 402 of the fuel level pipe 204, the fuel from the fuel tank 102 passes through the main fuel line 302. However, a substantial reduction in fuel level inside the fuel tank 102 that has caused the fuel level to lower below the top portion 402 of the fuel level pipe 204 stops flow of fuel through the main fuel line 302 and allows passage of fuel through the reserve fuel line 304.

[00039] In an embodiment, the fuel flowing 404 into the fuel cock body 208 through the reserve fuel line 304 is not allowed to pass through the fuel cock packing 228 due to the presence of the plunger 410 that is disposed against at least one slot of the plurality of slots on the fuel cock packing 228 closing the flow of fuel through the fuel cock packing 228. In an embodiment, the lowering of fuel level below the top portion 402 of the fuel level pipe 204 creates a sputtering sound due to lack of fuel passed into a combustion chamber of the engine so as to keep the engine in continous motion. In another embodiment, the generation of such sputtering sound is accompanied by temporary stoppage of the engine. Under both circumstances, the rider of the vehicle is provided with an electrical switch that controls the solenoid valve 214 ensuring opening of the plunger 410 disposed against the fuel cock packing 228 thereby allowing fuel from the reserve fuel line 304 to flow through the fuel cock packing 228.

[00040] In one embodiment, during an open condition 406 of the solenoid valve 214, the plunger 410 moves away from the fuel cock packing 228 causing the fuel flowing in 404 from the reserve fuel line 304 to pass through the at least one slot of the plurality of slots and through the second slot 316 before forcing the fuel out 408 through the fuel outlet spout 216.

[00041] FIG. 4 (b) illustrates a sectional front view of the fuel control device 108 depicting the reserve fuel line 304, in accordance with an embodiment of the present subject matter. In an embodiment, the fuel cock packing 228 includes a third slot 412 disposed on the fuel cock packing 228, substantially perpendicular and above the second slot 316. In one embodiment, the third slot 412 allows the entry of fuel from the reserve fuel line 304 through the fuel cock packing 228 when the fuel level recedes below the top portion 402 of the fuel level pipe 204 disposed inside the fuel tank 102. The fuel flowing out from the third slot 412 enters the second slot 316 before flowing out of the fuel cock body 208 through the fuel outlet spout 216. In one embodiment, the joint packing 206 of the fuel cock body 208 is held against the bottom surface of the fuel tank 102 by means of a mounting bracket 414. In one embodiment, the mounting bracket 414 is provided with one or more mounting locations for fastening the fuel control device 108 with the bottom surface of the fuel tank 102.

[00042] FIG. 4 (c) illustrates a sectional top view of the fuel control device 108 depicting the reserve fuel line 304, in accordance with an embodiment of the present subject matter. In an embodiment, the fuel passing through the fuel level pipe 204 enters the main fuel line 302 through a main fuel line opening 416 provided on the mounting bracket 414, centrally and substantially co-axially to the fuel cock body 208. In one embodiment, the centrally disposed main fuel line opening 316 is partially enclosed by a kidney shaped reserve fuel line opening 418 disposed on the mounting bracket 414.

[00043] Although the subject matter has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. It is to be understood that the appended claims are not necessarily limited to the features described herein. Rather, the features are disclosed as embodiments of the fuel control device 108 of the fuel system 100.

1/ we claim:

1. A fuel control device (108) of a fuel system (100) for a vehicle, said fuel control device (108) comprises: a fuel cock body (208) disposed substantially downward to a fuel tank (102) of said fuel system (100) enabling passage of fuel from said fuel tank (102) to said fuel cock body (208); a manifold cover (210) disposed towards a front side of said fuel cock body (208); a diaphragm (218) disposed intermediately between said fuel cock body (208) and said manifold cover (210); a fuel cock packing (228) disposed towards a rear side of said fuel cock body (208), said fuel cock packing (228) includes a plurality of slots enabling passage of fuel; and a solenoid valve (214) disposed at least in one of said plurality of slots for selectively controlling the passage of fuel through said plurality of slots.

The fuel control device (108) as claimed in claim 1, wherein said manifold cover (210) includes a vacuum spout (230) downwardly disposed in a direction away from the fuel tank (102) and facing ground surface, said vacuum spout (230) is capable of being coupled to a vacuum hose of said fuel system (100) causing suction of said diaphragm (218) towards the manifold cover (210) during operation of an internal combustion engine of said vehicle.

The fuel control device (108) as claimed in claim 2, wherein said diaphragm (218) is drawn towards the manifold cover (210) by means of at least one spring element (222) help between a stiffener (220) and at least an orifice plate (224).

The fuel control device (108) as claimed in claim 1, wherein the fuel cock body (208) includes a fuel outlet spout (216) downwardly disposed substantially perpendicular to ground surface, said fuel outlet spout (216) is capable of being coupled to a fuel outlet hose for supplying fuel to an internal combustion engine of said vehicle.

The fuel control device (108) as claimed in claim 1, wherein the fuel cock packing (228) is held against the rear side of the fuel cock body (208) by means of a solenoid valve cover (212), said solenoid valve cover (212) includes at least one opening for receiving said solenoid valve (214).

The fuel control device (108) as claimed in claim 1, wherein the solenoid valve (214) includes at least one plunger (410), said at least one plunger (410) is held against at least one slot of said plurality of slots allowing fuel from a main fuel line (302) to pass through the fuel cock packing (228), said at least one plunger (410) is disposed substantially away from the at least one slot of said plurality of slots allowing fuel from a reserve fuel line (304) to pass through the fuel cock packing (228).

The fuel control device (108) as claimed in claim 1, wherein the solenoid valve (214) is electrically controlled by at least one switch disposed in an instrument panel of said vehicle, said at least one switch is capable of being changed from an on-mode and an off-mode.

The fuel control device (108) as claimed in claim 1, wherein the fuel cock body (208) is mounted on a bottom surface of said fuel tank (102) of said fuel system (100) by means of at least one joint packing (206), wherein said at least one joint packing (206) is coupled with a centrally disposed fuel level pipe (204) that enables passage of fuel from the fuel tank (102) to the fuel cock body (208), said fuel level pipe (204) is circumferentially enclosed by means of at least one fuel strainer screen (202) capable of filtering fuel entering the fuel level pipe (204) from impurities, and wherein an inner space is formed between said fuel strainer screen (202) and said fuel level pipe (204).

The fuel control device (108) as claimed in claim 8, wherein the fuel entering the inner space formed between said fuel strainer screen (202) and said fuel level pipe (204) forms part of a reserve fuel line (304).

The fuel control device (108) as claimed in claim 6, wherein the main fuel line (302) allows fuel to initially pass through a first slot (314) of the plurality of slots, said fuel passing through the first slot (314) enters a second slot (316) disposed substantially parallel and adjacent to said first slot (314), said fuel entering the second slot (316) is forced out of the fuel cock body (208) due to the presence of vacuum (310) in the fuel cock body (208).

The fuel control device (108) as claimed in claim 6, wherein the fuel cock packing (228) includes a third slot (412) disposed substantially perpendicular and above the second slot (316), said third slot (412) allows entry of fuel from the reserve fuel line (304) through the fuel cock packing (228) when the fuel level recedes substantially below a top portion (402) of said fuel level pipe (204) disposed inside said fuel tank (102).

A fuel system (100) for a two-wheeled scooter type vehicle, said fuel system (100) comprises: a fuel tank (102) disposed on a rear side of vehicle frame (106) and underneath a seat; a fuel control device (108) mounted on a bottom surface of said fuel tank (102), said fuel control device (108) allows passage of fuel from said fuel tank (102) to an internal combustion engine of said vehicle when in running condition; said fuel control device (108) including a fuel cock body (208) capable of being mounted on the bottom surface of the fuel tank (102) by means of a joint packing (206); a fuel level pipe (204) disposed substantially perpendicular to said joint packing (206) and inside said fuel tank (102); and a fuel strainer screen (202) having finite meshes circumferentially enclosing said fuel level pipe (204), wherein said fuel system (100) includes a main fuel line (302) and a reserve fuel line (304), wherein said main fuel line (302) includes fuel from the fuel tank (102) flowing through said fuel level pipe (204), and said reserve fuel line (304) includes fuel flowing through an inner space formed between the fuel strainer screen (202) and the fuel level pipe (204).

A two-wheeled scooter type vehicle including a fuel system (100) having a fuel control device (108) as claimed in any one of the preceding claims.

A three-wheeled vehicle including a fuel system (100) having a fuel control device (108) as claimed in any one of the claims 1 to 12.