KR20140053546A - Gas tank apparatus for vehicle - Google Patents

Abstract

The present invention relates to a fuel storage device for a vehicle trunk and, more particularly, to a fuel storage device for a vehicle trunk, which can maximize the use of trunk space as well as facilitate the manufacture thereof by manufacturing a gas fuel storage cylinder in a donut shape to mount the gas fuel storage cylinder in a spare tire storage part provided in a vehicle trunk and mounting a valve assembly, in which a gas fuel charge valve and a fuel level gauge are integrated with each other, in a through hole part provided in the cylinder. In order to achieve the objective of the present invention, the fuel storage device for a vehicle trunk comprises: a cylinder mounted in a spare tire storage part of a vehicle trunk and including a donut-shaped main body which forms an alternative fuel storage part, a center space part, a C-like outer wall part which forms a part of the main body, an inner wall part which is connected to the outer wall part to surround the center space part, a mounting part which is recessed in the outer wall part to be communicated with the storage part, and a through hole part which is formed in the inner wall part to be communicated with the storage part; a pump coupled to the mounting part of the cylinder; and a valve assembly coupled to the through hole part of the cylinder and including a charge valve and a fuel level gauge which are integrated with each other.

Description

TECHNICAL FIELD [0001] The present invention relates to a fuel storage device for a vehicle trunk,

The present invention relates to a fuel storage device for mounting a vehicle trunk,

More particularly, to a vehicle using liquefied gas fuel, particularly a vehicle using liquefied gas fuel by mounting an LPI engine, a gas fuel storage bomb is manufactured in a donut shape and mounted in a spare tire storage unit provided in the trunk of the vehicle A gas fuel filling valve and a fuel remaining amount gauge are combined with each other so that the valve assembly can be mounted on a cylinder provided in the cylinder so as to facilitate manufacturing and maximize utilization of the trunk space. .

In general, liquefied gas fuels, especially LPG (liquefied petroleum gas) fuels, are more popular in commercial vehicles such as taxis and some passenger cars and vans because they have a lower fuel cost than liquid fuels such as gasoline.

BACKGROUND ART [0002] Generally, an engine of a vehicle using a gaseous fuel is divided into two types: a carburetor engine for storing gaseous fuel in a liquid state and then injecting gaseous fuel in a vaporized state into the engine;

There is a LPI (Liquid Phase LPG Injection) engine that directly injects liquefied gas fuel into the engine after storing the gaseous fuel in liquid state,

Especially, since the degree of air pollution caused by exhaust gas is low, most of the gas fuel vehicles that are converted by the government and the local governments as part of the government environmental policy adopt LPI engines.

Typically, the retrofitted gas-fueled vehicle mounts a separate storage device in the trunk of the vehicle for storing the liquefied gas fuel.

The prior art relating to a fuel storage device for a vehicle using gaseous fuel is disclosed in Published Patent Application No. 10-2012-0105638 (published on September 26, 2012)

The present invention relates to a fuel tank for a gas-fueled vehicle and a fuel filling method thereof, which comprises a bomb made of a forced high-pressure vessel to protect the gaseous fuel stored therein from impact or vibration, Wherein the pressure forming gas is injected before the initial injection of the gaseous fuel, and a fuel filling method thereof.

Another prior art is disclosed in Published Patent Application No. 10-2001-0002731 (published on January 15, 2001)

The present invention relates to a fuel tank structure installed in a vehicle for LPG, and more particularly, to a fuel tank structure which is easy to utilize a limited space installation package of a vehicle body and prevents gas contamination in a car interior, Wherein a plurality of fuel tanks are fixed to each other by connecting brackets to neighboring fuel tanks while interconnecting the fuel tanks of a plurality of rows with each other through gas and liquid communication pipes, The present invention relates to a multi-row integral type fuel tank structure for a vehicle for use in an automotive vehicle for an elastomer, which has a structure in which fixing brackets attached to a vehicle body are installed on one end cylindrical portion to prevent breakage of connection brackets due to vibration and impact.

Another prior art is disclosed in Japanese Patent Application Laid-Open No. 10-2008-0062301 (published on July 3, 2008)

The present invention prevents the start-up of the vehicle driven by LPG fuel from being shut off due to lack of fuel according to the fuel flow, and stably supplies the fuel irrespective of the road condition. The structure stores LPG, which is the fuel of the LPG vehicle A main bomb having an inlet valve for injecting LPG fuel therein and a discharge valve provided with a fuel pump and a driver for supplying LPG fuel to the LPG vehicle, An auxiliary bomb having a length longer than the main bomb and having a fuel gauge mounted therein; a pressure communication pipe communicating pressure between the main bomb and the auxiliary bomb at an upper portion thereof; A second fuel delivery pipe connecting the main bomb and the auxiliary bomb to allow fuel to move between the main fuel bomb and the auxiliary bomb, In the lower part of the fuel transfer pipe, fuel is introduced from the auxiliary bomb into the main bomb by connecting between the main bomb and the auxiliary bomb. In the main bomb, a check valve And a first fuel delivery pipe to which the first fuel delivery pipe is mounted.

However, the fuel storage device according to the present invention has a very large volume, thereby occupying most of the trunk space of the vehicle, thereby limiting the utilization of the trunk.

Another prior art for solving the above problem is the 10-1994-7002798 (published September 14, 1994)

The present invention relates to an improved type of round annular LPG gas tank which can be easily accommodated in a spare wheel compartment of an automobile. In the annular tank described above, the central hollow portion of the tank is protruded or flushed Is used to position a valve group connection ring and also to allow pipes to be used to connect the tank with the engine fuel supply system and filter and the valves are used to form an airtight chamber To an improved LPG gas tank to which a valve located between a lead and a bottom plate connected to each other is connected.

However, the present invention is not limited to the above-described embodiments, but various mounting holes such as a mounting hole to which a pump for supplying liquefied gas fuel to an engine of a vehicle is connected to a storage device, a mounting hole for a charging valve for charging fuel, There is a problem in that it is difficult to manufacture a gaseous fuel storage device and thus a manufacturing cost is increased, and a pump for LPI must be additionally provided.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The present invention includes a toroidal bomb that can mount a fuel storage device in a spare tire storage unit provided at a lower portion of a trunk so as to maximize utilization of trunks of the vehicle, A charging part for charging the gas fuel and a fuel remaining amount gauge for charging the gas fuel, a mounting part for inserting and mounting the pump so as not to interfere with the space utilization of the trunk when the fuel storage device is mounted on the spare tire storage part, The fuel tank being provided with a valve assembly in which a valve assembly is integrated.

In order to prevent fuel leakage, the pump and the valve assembly are firmly coupled to the bomb. In order to prevent the fuel from leaking out, the fuel tank is provided with a mounting portion, a protective sleeve, And an object of the present invention is to provide a device.

Further, according to the present invention, when the remaining amount of gaseous fuel is small, when the vehicle tilts and the gaseous fuel flows eccentrically to one side, the gaseous fuel is not sucked through the pump and the supply of gaseous fuel to the engine is stopped, , A fuel supply assisting fuel storage cup having a fuel outflow inhibiting fuel inlet and a fuel outflow inhibition reinforcement nozzle is provided so that the gas fuel intake portion provided in the pump is always locked with the fuel so as not to interrupt the fuel supply And a fuel storage device for a vehicle trunk.

In order to achieve the above object, a fuel storage device for a trunk of a vehicle according to the present invention includes:

A donut-shaped body forming a substitute fuel reservoir, a central space, an alphabet "C " -like outer wall constituting a part of the main body, an inner wall portion connected to the outer wall portion and surrounding the central space portion, A bumper mounted on the spare tire storage unit of the vehicle trunk, the bumper having a cylinder communicating with the storage unit, the cylinder bumper being formed in the inner wall and communicating with the storage unit;

A pump coupled to the mounting portion of the bomb; And

A valve assembly coupled to the bore of the bomb and having a fill valve and a fuel gauge integrated; .

Further, in the fuel storage device for a trunk of a vehicle according to the present invention, the mounting portion is upwardly open, and a first sleeve for protection and a first fastening hole for pump coupling are formed around the opening, And a second sleeve, wherein a second fastening hole for engaging the valve assembly is formed in the second sleeve.

Further, in the fuel storage device for a trunk of a vehicle according to the present invention, the storage portion may further include a fuel supply cup for ensuring fuel supply at all times, which surrounds the suction portion of the pump and has a fuel outflow- .

Further, in the fuel storage device for a trunk of a vehicle according to the present invention, the fuel outflow restraining nozzle arranged adjacent to the bottom surface of the fuel inlet and outlet of the fuel storage cup is further provided.

The fuel storage device for mounting a vehicle trunk according to the present invention introduces a bomb made of a toroidal main body and mounts a fuel storage device in a spare tire storage portion provided in the trunk of the vehicle, thereby maximizing the space utilization of the trunk by the user However,

By introducing the valve assembly in which the charge valve and the fuel remaining amount gauge are integrated, it is very easy to manufacture the storage device, and the effect of reducing the manufacturing cost can be expected.

Further, according to the fuel storage device for a trunk of a vehicle according to the present invention, a mounting portion including a protective sleeve and a coupling hole and a through hole are introduced to firmly connect the pump and the valve assembly, thereby preventing a fuel leakage accident And only two through holes communicating with the storage portion of the bomb need to be produced, so that the manufacturing of the storage device can be greatly facilitated.

Further, the fuel storage device for a trunk of a vehicle according to the present invention introduces a fuel supply assisting fuel storage cup having a fuel outflow inhibiting fuel inlet and a fuel outflow inhibiting nozzle, so that the fuel intake part of the pump is always locked, It is possible to prevent the problem that the liquefied gas fuel is eccentrically flowed to one side of the vehicle due to the inclination of the vehicle, and the starting is not turned off because the fuel is not sucked into the pump.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view and an enlarged view of a fuel storage device for mounting a vehicle trunk according to the present invention; FIG.
2 is a cross-sectional view and plan view of a fuel storage device for mounting a vehicle trunk according to the present invention.
3 is an exploded perspective view of a fuel storage device for mounting a vehicle trunk according to the present invention.
4 is a perspective view and a cross-sectional view showing a fuel storage cup for fuel supply in a fuel storage device for a trunk of a vehicle according to the present invention.
5 is a cross-sectional view and a perspective view showing the impact canceling means of the fuel storage device for mounting a vehicle trunk according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

First of all, in a vehicle using a conventional gaseous fuel, in particular, in the case of a gas-fueled vehicle through modification, a storage device for storing the gaseous fuel is mounted in the trunk of the vehicle.

The storage device is typically a spring vessel, which is a cylindrical pressure resistant vessel for storing or transporting compressed gas and liquefied gas, is of a long cylindrical (cylindrical) type made of thick steel, And a pressure reducing valve is provided.

Bombs are divided into welding vessels and seamless vessels depending on the manufacturing method. The former is for relatively low pressure liquefied gas such as chlorine, ammonia, propane, butane, and the thickness of the vessel is thin and light. The latter is built up with hydrogen, oxygen, nitrogen, argon, helium, methane, etc. at pressures of up to 150 atmospheres, so the vessel is thick and weighs more than 70 kg.

The bombs installed in the alternative fuel vehicles of various bombs have a very large volume, so that there are many restrictions on the utilization of trunks for loading bulky objects,

Since the storage device is mounted on the innermost side of the trunk, it is very difficult to repair the storage device if a failure occurs.

However, in order to reduce fuel consumption by reducing vehicle weight and to reduce the price when purchasing a vehicle, the spare tire is used as a tire made of a disposable light material, or only a spare tire storage portion is included in a vehicle without a spare tire .

The present invention relates to a gas-fueled vehicle having a storage device for storing a large-capacity alternative fuel (gaseous fuel) in a trunk, the storage device being capable of preventing the space utilization of the trunk from being hindered. The present invention provides a fuel storage device for a vehicle trunk mount capable of mounting and mounting a fuel storage device on a vehicle.

In describing the fuel storage device for a trunk of a vehicle according to the present invention, when an unambiguous approximate direction reference is specified with reference to a cross-sectional view of FIG. 2 for convenience, the direction in which gravity acts is the lower side, Referring to the plan view of FIG. 2, inner and outer sides are defined around the central space portion.

In describing the fuel storage device for a trunk of a vehicle according to the present invention, the alternative fuel (gas fuel) may be a liquid fuel (LPG, LNG, CNG, etc.) Means a fuel that is filled into a storage device other than a fuel cell,

This concept covers biodiesel, such as corn oil.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a constant fuel supply assurance type vehicle fuel storage device according to the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the regular fuel supply-type vehicle fuel storage apparatus according to the present invention includes a donut-shaped body 10 forming an alternative fuel storage unit 11, a central space 12, An outer wall portion 13 connected to the outer wall portion 13 and enclosing the central space portion 12 and an inner wall portion 14 surrounding the outer wall portion 13, (16) formed in the inner wall part (14) and communicating with the storage part (11), the mounting part (15) being formed in the vehicle trunk And a bomb (B) mounted on the spare tire storage unit.

1 and 2 show a perspective view, a cross-sectional view and a plan view of the fuel storage device according to the present invention, and Fig. 3 is an exploded perspective view of the fuel storage device according to the present invention.

The outer wall portion 13 and the inner wall portion 14 are not separate members constituting the main body 10 of the bomb B but refer to portions of the main body 10 of the bomb in this specification. A part of the main body forming the inside of the bomb will be referred to as the inside wall part 14 and a part of the main body forming the outside of the bomb will be referred to as the outside wall part 13. [

That is, the main body 10 forming the cylinder B can be assembled into a plurality of parts, and the scope of the right interpretation of the present invention should not be limited by the above-mentioned designations.

Therefore, the main body of the cylinder B is not limited to the combination of the inner wall portion and the outer wall portion, but may be variously formed by a manufacturer (hereinafter referred to as a person skilled in the art) In consideration of safety, each of the components is preferably coupled through welding.

Typically, a spare tire storage unit provided at a lower portion of a trunk of a vehicle has a groove portion of a toroidal shape corresponding to the shape of the tire, and has a fixing bracket protruding from the center to fix the tire.

And a lid or an opening / closing plate formed so as to be able to be opened and closed by separating the loading space of the trunk and the tire storage unit.

In the fuel storage device according to the present invention, the outermost circumference formed by the outer wall portion 13 of the cylinder B may be the same as or smaller than the outer circumference of the spare tire storage portion provided in the vehicle,

Is made approximately equal to the outer perimeter of the storage part to store as much fuel as possible,

It is preferable that the outer side of the storage portion and the outermost periphery of the outer wall portion 13 of the cylinder B are spaced apart from each other by a predetermined distance,

And more preferably about 5 to 10 cm.

The structure and effect of the buffer member will be described later in detail.

Further, it is preferable that the present invention further includes a diaphragm 121 which can be coupled to the fixing bracket provided in the spare tire storage unit in the central space portion 12. [

To this end, the diaphragm 121 is further provided with a coupling part 122, and a fixing member such as a bolt is coupled to the coupling part 122 to engage and fix the fuel storage device of the present invention in the spare tire storage part. .

It is preferable that the diaphragm 121 is arranged on the lower side of the central space portion 12, that is, the bottom surface of the passage portion 16 described later, and the binding portion 122 is arranged at a position shifted from the passage portion 16 Do.

It is preferable that the cylinder block 16 is arranged to be displaced so as not to interfere with each other for easy coupling or separation of the fuel regulator through the fixing member. A detailed description thereof will be described later.

The upper part of the upper part of the upper part of the diaphragm 121 and the upper part of the upper part of the upper part of the upper part of the upper part of the diaphragm 121 can be connected with each other. An auxiliary coupling bracket 123 may be further provided.

The fuel storage device according to the present invention is equipped with a pump 20 for supplying stored alternative fuel to the engine of the vehicle.

The function of the pump 20 may vary depending on the type of the engine of the vehicle using the alternative fuel. More specifically, in the case of the vaporizer engine system in which the alternative fuel is stored in the liquefied state and supplied to the vaporized state when the engine is supplied The pump 20 functions to supply fuel to the vaporizer,

In the case of the LPI engine which supplies the liquefied gas fuel directly to the engine in a liquefied state to generate engine power, it has a function of directly supplying the liquefied gas fuel to the engine.

The pump 20 not only sucks the remaining amount of fuel stored in the bottom of the storage unit 11, that is, the lower part of the cylinder B,

In order not to infringe the loading space of the trunk for the utilization of the trunk loading space formed above the spare tire storage unit,

The pump 20 is built in the main body 10, that is, in the reservoir 11, and controls a part of the pump 20, that is, the transfer line for supplying fuel and the operation of the pump 20 (Not shown) composed of a PCB or the like is exposed to the outside,

Preferably, the pump is protruded to a height enough to be hermetically sealed by the above-mentioned trunk lid or opening / closing plate.

To this end, a mounting portion 15 for engaging the pump 20 is formed on one side of the outer wall portion 13.

It is preferable that the mounting portion 15 is upwardly opened and the first sleeve 151 for protection and the first fastening hole 152 for coupling the pump 20 are formed around the opening.

The pump 20 includes a support member 212 having a first coupling hole 211 inserted into the opening and coupled to the first coupling hole 152 by a fixing member such as a bolt,

And a suction unit (21) connected to a lower side of the support member (212) to suck fuel of the storage unit.

A pump driver (not shown) including a control unit such as a PCB for controlling the pump 20 provided in the pump 20 is provided with a pump (not shown) for covering the mounting unit 15, And is preferably formed to be coupled to the lid 22.

The pump cover may cover the opening of the mounting portion 15 and may be formed to cover only a part of the opening portion for installation of a fuel transfer line (not shown) to the vehicle engine.

3 shows a pump 20 of a circular shape in plan view and a pump lid 22 comprising a control part such as a PCB plate corresponding to the pump 20 has a semicircular shape, And can be variously modified, modified, and substituted according to the selection of the right, so that the right interpretation of the present specification should not be limited.

Further, the elements constituting the pump 20, the operating principle thereof, the connection structure of the cables and the like are well known in the art, such as a pump used in a conventional LPI engine or a general pump used in a carburetor engine. The detailed description will be omitted for the convenience of description.

Further, as described above, the present invention is provided with the passage 16, and the passage 16 is provided for coupling the valve assembly 30, which will be described later,

It is preferable that the passage 16 has a second sleeve 161 protruded diagonally and a second coupling hole 162 for coupling the valve assembly is formed in the second sleeve 161.

As described above, the valve assembly 30 is coupled to the second sleeve 161 and protrudes obliquely toward the central space 12 of the bomb to facilitate maintenance of the fuel regulator. have.

As described above, since the diaphragm 121 having the coupling portion 122 is formed at the lower portion of the passage portion 16, the passage portion 16 is formed at a position corresponding to the coupling portion 122 in the vertical direction When the valve assembly 30 is coupled to the second sleeve 161, the convenience of the operation is deteriorated when the fuel storage device is mounted to or detached from the spare tire storage unit,

It is preferable that the through-passages 16 and the coupling portions 122 of the diaphragm 121 are arranged at mutually offset positions.

The valve assembly 30 coupled to the passage 16 includes a fill valve 31 for filling the storage part 11 with gaseous fuel and a gauge 32 for indicating the amount of fuel remaining in the storage part 11 Are integrally formed.

Typically, the bomb of the conventional gas fuel storage device has a through hole connected to the charging valve and a through hole for inserting the gauge separately.

However, according to the present invention, by providing a valve assembly in which a charging valve and a gauge are integrated, it is possible to form the valve assembly in a main body of a single cylinder so that the manufacturing convenience can be achieved and the manufacturing cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a valve assembly according to an embodiment of the present invention; FIG.

In general, gauge means a gauge, which is referred to as an LPG indicator, an insertion tube inserted into a storage portion of a bomb, a swingable swingable connection to the end of the shovel tube, As shown in Fig.

The needle or scale provided on the indicator can be moved according to the displacement of the displacement member, so that the user can directly check the remaining amount of fuel remaining in the fuel storage device.

A typical charging valve includes an injection port connected to a fuel filling nozzle such as an LPG gas filling station and supplied with fuel, a transfer pipe connected to the injection port and inserted into the storage section to transfer and store the gas, (For example, a ball valve, a slide valve, etc.).

Accordingly, the present invention forms a hollow in the insertion tube (312) to which the measuring member is coupled, and communicates the hollow with the injection port of the fuel fill valve, so that the injection tube of the gauge is transferred to the transfer tube, And a valve assembly (30).

The valve assembly is inserted into the passage so as to function as a fuel transfer pipe when the fuel is filled, and functions as a remaining amount detection function by displacement of a displacement member (not shown) provided at a terminal end.

Therefore, since the present invention is integrally formed with one valve assembly 30, the through holes for inserting into the reservoir 11 of the cylinder B are designed as one,

The fuel storage device according to the present invention not only enhances manufacturing convenience but also can reduce the manufacturing cost of the fuel storage device.

In the charging valve and indicator, the shape of the injection port of the filling valve, the configuration of the opening /

A indicator for detecting the remaining amount of the fuel and indicating the remaining amount of the fuel to the outside, a residual amount measuring method according to the displacement of the displacement member,

A sensor that can emit a warning light to notify a user in the driver's seat of the vehicle when the amount of fuel remaining in the storage unit is less than a predetermined amount and the like are not directly related to the essential features of the present invention. Omit the connection relationship.

Further, as described above, since the fuel storage device according to the present invention is mounted under the loading space of the trunk, it is not preferable that the valve assembly 30 protrudes upward like the pump 20.

Therefore, the through-passages 16 are obliquely arranged and protruded from the inner wall portion 14 forming the central space portion 12,

Even if the height of the valve assembly 30 is higher than the uppermost level of the main body or the pump, the height of the trunk cover or the opening / closing plate , But it is preferable that the height

In order to increase the versatility of the fuel storage device of the present invention, when the valve assembly 30 is coupled, the uppermost level of the valve assembly 30 is connected to the main body 10 of the cylinder B ) Or the height of the uppermost end of the pump (20).

The valve assembly 30 includes an insertion tube 312 for insertion into the first sleeve 151 of the mounting portion 15 and a second coupling portion for coupling the second coupling hole 162 with a fixing member such as a bolt, And a hole 311 is provided.

The fuel storage device according to the present invention further includes a fuel supply cup for assisting fuel intake into the pump 20 in the reservoir 11, as shown in FIG. 4 is a cross-sectional view showing a perspective view and a function of the fuel storage cup of the present invention.

The fuel storage cup will be described in detail as follows.

The fuel stored in the storage device is eccentrically moved to one side when the vehicle is tilted to one side, and thus the conventional fuel storage device or the like has a problem that the pump 20 can not inhale the fuel instantaneously.

In order to prevent the above problems, the fuel storage device according to the present invention is characterized in that the storage portion 11 of the cylinder B surrounds the suction portion 21 of the pump 20, And a fuel supply reservoir 40 for supplying fuel at all times.

The fuel storage cup 40 is a device for always ensuring the fuel suction of the pump 20 to prevent the start of the vehicle from being stopped due to an abnormality in fuel supply to the engine of the vehicle.

The suction portion 21 is formed to extend downward from the pump 20 and surround the suction portion 21 for sucking the fuel of the storage portion 11 so that the suction portion 21 is connected to the fuel filled in the fuel storage cup 40 It is always locked.

As shown in FIG. 4A, even when the fuel is not sufficiently stored (the level of the fuel is very low), the fuel storage cup 40 is filled with a certain amount of fuel through the fuel inlet 41 And has the same water level as the fuel in the storage part 11. [

At this time, when the vehicle tilts and the fuel in the storage portion 11 eccentrically flows to one side, the fuel in the fuel storage cup 40 always remains in the cup, so that the fuel inside the cup is always locked The suction portion 21 of the pump 20 is capable of sucking fuel even when the vehicle is inclined, so that fuel supply to the engine is not stopped.

For this, the fuel inlet 41 is formed at one side of the sidewall forming the cup-shaped fuel storage cup 40 and is arranged adjacent to the bottom of the cup 40,

A fuel leakage restraining nozzle 42 may be further provided.

The nozzle 42 may be connected to the fuel inlet and protruding into the cup and bent to one side.

4A and 4B, the suction portion 21 of the pump 20 is omitted for convenience of explanation. However, in the parallel state of the vehicle, the fuel inlet 41 and the bent nozzle 42 to continuously supply the fuel to the suction portion 21 of the pump 20,

When the vehicle is tilted, as shown in FIG. 4B, the fuel inlet portion is formed above the fuel level in the fuel storage cup 40 so that fuel is not discharged to the outside of the cup, So that the suction portion 21 of the pump 20 is always able to suck fuel.

4, the distal end of the nozzle 42 is formed above the level of the fuel in the fuel storage cup 40, so that even when the vehicle is in a cup The prevention of the outflow is sufficiently predictable.

Further, when the vehicle is inclined lower than the degree of inclination shown in FIG. 4B so that the nozzle 42 or the fuel inlet 41 is fully immersed in the fuel in the cup, The eccentric flow of the fuel is not performed enough to stop the supply, so that the fuel can be supplied at all times.

In addition, although not shown in the drawing, when the vehicle is inclined in the direction in which the fuel inlet 41 and the nozzle 42 are formed, that is, the fuel inlet 41 and the fuel inlet 41 The nozzle is not tilted like a so-called seesaw motion,

When the fuel inlet 41 and the nozzle are inclined in the same direction so that the fuel inlet 41 and the nozzle 42 are completely immersed in the fuel in the cup,

The fuel in the fuel storage cup 40 flows out to the outside of the cup, but the outflow of the fuel is suppressed due to the bent nozzle 42 and the fuel inlet 41 composed of a small through hole, so that the fuel in the cup does not flow out rapidly ,

Considering the time when the vehicle is inclined (considering the usual road conditions, the vehicle will not travel in a state of being inclined for a long time), so that the fuel supply interruption due to the fuel outflow does not occur.

The forming position of the fuel inlet / outlet 41 is not limited. However, when considering the general road conditions and the running characteristics of the vehicle,

In the case of specifying the front, rear, left, and right directions of the trunk of the vehicle, the inclination of the vehicle is more inclined in the forward and backward directions than in the left and right directions (that is, Since there is more tilting back and forth)

The fuel inlet 41 and the nozzle 42 are formed at any position to the left or right with respect to the advancing direction of the vehicle so that both the fuel inlet 41 and the nozzle 42 It is preferable to prevent a situation in which the fuel is immersed in the fuel in the cup.

The number of the fuel inlet and outlet 41 and the number of the nozzles 42 are not limited but the number of the fuel inlet 41 and the number of the nozzles 42 is not limited. However, considering the stability of fuel injection into the cup, Are formed to be symmetrical with respect to each other,

4, the fuel inlet 41 and the nozzle 42 are formed to be symmetrical with respect to each other in the rotational direction as shown in FIG. 4, Respectively.

In addition, when a vehicle collides, particularly when a collision occurs in the rear of the vehicle, an impact force (external force) due to a collision is transmitted to the spare tire storage unit so that the impact force can be transmitted to the fuel storage device according to the present invention.

In order to prevent breakage and explosion of the fuel storage device due to impact force,

As shown in FIG. 6, in the fuel storage device according to the present invention, it is preferable that the outer wall portion 13 of the cylinder B further includes a buffer member 17 arranged between the outer wall portion 13 and the storage portion of the spare tire Do.

6 is a cross-sectional view and a perspective view showing the buffer member 17 in the fuel storage device according to the present invention.

The cushioning member 17 is connected to the connection bracket 173 protruding from the close panel 171 and the connection panel 171 tightly coupled to the outer wall 13, And a collision panel 173 adjacent to the storage part.

6, the cushioning member 17 is shown as disconnected, but the tightening panel 171 and the collision panel 173 are formed in the form of a tube, particularly a toroidal tube, It is preferable that the protrusions 173 are arranged radially at predetermined intervals so as to be able to absorb not only the impact force at one side but also the impact force at all four sides.

The buffer member 17 is provided with a close contact panel 171 which is in close contact with the outer wall portion 13 so that the impact force transmitted from the impact panel and coherent to the connection portion between the connection bracket 173 and the close- It is possible to prevent an accident such as breakage or explosion of the fuel storage device according to the present invention by dispersing in the panel 171.

In order to reliably relieve the impact force of the cushioning member 17, the cushioning member 17 may be formed to be stretchable through elastic means,

In particular, the connection bracket 173 may be provided with an elastic member (e.g., a coil spring, a sponge, or other elastomer) that assures displacement of the impact panel by an impact force.

As described above, the present invention is mainly applied to a vehicle equipped with an LPI engine for convenience of explanation. However, the present invention is not limited to this, The applicability of the present invention can be sufficiently predicted by those skilled in the art, so that there is no restriction on the right interpretation of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Changes and substitutions are to be construed as falling within the scope of protection of the present invention.

G: Alternative fuel B: Bomb
10: main body 10: main body
11: storage part 12: central space part
121: diaphragm 122:
123: Auxiliary fastening bracket 124: Through hole
13: outer wall part 14: inner wall part
15: mounting portion 151: first sleeve
152: first fastening hole 16:
161: second sleeve 162: second fastening hole
17: buffer member 171:
172: connection bracket 173: shock panel
20: Pump 21: Suction part
22: pump cover 30: valve assembly
31: Charging valve 32: Gauge
40: fuel storage cup 41: fuel inlet part
42: Nozzle

Claims (4)

A donut-shaped body forming a substitute fuel reservoir, a central space, an alphabet "C " -like outer wall constituting a part of the main body, an inner wall portion connected to the outer wall portion and surrounding the central space portion, A bumper mounted on the spare tire storage unit of the vehicle trunk, the bumper having a cylinder communicating with the storage unit, the cylinder bumper being formed in the inner wall and communicating with the storage unit;
A pump coupled to the mounting portion of the bomb; And
A valve assembly coupled to the bore of the bomb and having a fill valve and a fuel gauge integrated;
And a fuel tank for storing fuel. The method according to claim 1,
The mounting portion is upwardly open, and a first sleeve for protection and a first fastening hole for pump coupling are formed around the opening,
Wherein the through-hole has a second sleeve protruded obliquely, and a second fastening hole for engaging the valve assembly is formed in the second sleeve. 3. The method according to claim 1 or 2,
Wherein the storage portion further comprises a fuel supply cup for ensuring normal fuel supply which surrounds the suction portion of the pump and has a fuel outflow-inhibiting fuel inlet / outlet portion on the bottom portion thereof. The method of claim 3,
Wherein the fuel outlet of the fuel storage cup is further provided with a fuel leakage restraining nozzle arranged adjacent to the bottom surface thereof.

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