KR20150076725A - Uel supply apparatus using connection structure of braket and fixed outside filter - Google Patents

Uel supply apparatus using connection structure of braket and fixed outside filter Download PDF

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Publication number
KR20150076725A
KR20150076725A KR1020130165258A KR20130165258A KR20150076725A KR 20150076725 A KR20150076725 A KR 20150076725A KR 1020130165258 A KR1020130165258 A KR 1020130165258A KR 20130165258 A KR20130165258 A KR 20130165258A KR 20150076725 A KR20150076725 A KR 20150076725A
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South Korea
Prior art keywords
fuel
tank
pump module
fuel pump
motor pump
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KR1020130165258A
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Korean (ko)
Inventor
김종렬
문덕수
정용학
Original Assignee
현담산업 주식회사
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Priority to KR1020130165258A priority Critical patent/KR20150076725A/en
Publication of KR20150076725A publication Critical patent/KR20150076725A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The present invention relates to a fuel supply apparatus having a bracket structure and a fixed outside filter unit and, more specifically, to a fuel supply apparatus having a bracket structure and a fixed outside filter unit, wherein an outside filter unit installed in a lower end of a fuel pump module is completely fixated on a precise position of the fuel pump module not to be removed. The fuel pump module is in contact with the bottom inside a fuel tank not to be fixated, and has a simple bracket structure fixated on an upper surface inside the fuel tank for vibration transmission of an engine to be reduced. After a case of the fuel pump module is manufactured to be an integral type case, a motor pump and a filter unit are installed therein, thereby reducing manufacturing costs and processes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel supply system,

The present invention relates to a fuel supply device for feeding fuel to an engine, a fuel pump module, a fuel tank module, and a fuel pump module.

A fuel tank for storing fuel is provided in a vehicle such as a gasoline engine or a diesel engine and the fuel tank is provided with a fuel pump for forcibly supplying fuel to the engine, The fuel pump is divided into a DC fuel pump and a BLDC fuel pump depending on the presence or absence of a brush (BRUSH).

Generally, the BLDC fuel pump related to the present invention supplies electric power to the STATOR (stator) through the terminal & connector when the engine start switch of the vehicle is ON, and when the electric power is supplied to the STATOR The BLDC fuel pump is capable of discharging the fuel in the fuel tank and the fuel discharged through the BLDC fuel pump is supplied to the engine at a constant pressure. do.

Various techniques are provided in addition to the patent documents 1 to 4 attached to the technology related to the fuel pump used in the vehicle.

In the BLDC fuel pump module for a vehicle of Patent Document 1, Patent Document No. 10-1075795, a guide rod can be cut to an appropriate length in accordance with the specification of the fuel pump module so that profitability is good and the economical burden due to the securing of the stock is not increased Technology.

In the BLDC fuel pump for vehicle of Patent Publication No. 10-0993665 of Patent Document 2, the pressure of the contact surface of the commutator of the carbon brush that supplies the power to the armature through the commutator can be always kept constant, so that the generation of the fuel oil film layer can be suppressed And provides a technique for stably maintaining the performance of the fuel pump.

In the BLDC fuel pump for vehicles of Patent Publication No. 10-0953409 of Patent Document 3, the discharge performance (discharge pressure and discharge amount) can be improved without increasing the number of rotations of the impeller, which is suitable for a high output engine, So that the durability is increased and thus the life of the product can be prolonged.

In the fuel pump fixing structure of the fuel supply module for a vehicle of Patent Publication No. 10-0773370 of Patent Document 4 provided by the applicant of the present invention, the soundproof / dustproof efficiency against noise / vibration generated by driving the fuel pump is improved, Thereby reducing the number of parts for fixing and simplifying the structure.

However, such a conventional fuel pump is manufactured by welding all of the coupling / contacting portions when assembling or assembling a plurality of components as described above at the time of manufacturing. However, such a welding operation requires a long time for the welding process, It is difficult to precisely weld the joints / contact portions of the products, and it is inconvenient to manufacture and assemble the fuel pump.

However, since such a conventional fuel pump is manufactured by separately manufacturing a case into which a motor pump is inserted and a case into which a filter is inserted at the time of manufacture, it takes a lot of time to manufacture such a fuel pump, There is a problem in that it often occurs.

The conventional fuel pump has a structure in which the bottom surface of the fuel pump module is closely fixed to the inner bottom surface of the fuel tank and mechanically controls the pressure in the regulator so that the vibration of the vehicle is transmitted to the fuel pump module , There is a problem that the consumed electric power and the fuel consumption of the vehicle are lowered because it was a fixed flow rate supply mode that supplies constant pressure and fuel constantly at all times regardless of the condition or state of the vehicle.

In addition, in the case of a foreign matter removing filter provided outside the fuel pump module, there is a problem that the filter is removed from the fuel pump module in the fuel tank due to the flow of fuel in the fuel tank.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fuel supply device for transferring fuel to an engine, in which a fuel pump module is not installed in close contact with a bottom surface of a fuel tank, The fuel pump module has a simple bracket structure coupled to the inner bottom surface of the fuel pump module to reduce the vibration transmission of the engine. In the case of the outer filter portion coupled to the outer bottom surface to filter the fuel in the tank, In order to reduce the manufacturing process time and cost by using the case of the fuel pump module in which the motor pump and the filter part are respectively inserted, A single bracket structure and an external filter fixed fuel supply device.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above problems, the present invention provides a fuel supply device that is provided inside a fuel tank (10) and that transfers fuel to an engine. The fuel supply device includes a main tank (11) and a sub tank A fuel tank (10) forming a plurality of fuel storage spaces of the fuel tank (13); The upper surface of the fuel tank 10 is coupled with the upper surface of the fuel tank 10 and is fixed to the main tank 11. The lower surface of the fuel tank 10 is spaced apart from the lower surface of the fuel tank 10 A fuel pump module 20 which simultaneously sucks fuel from the main tank 11 and the sub tank 13 and feeds the fuel to the engine; An outer filter portion (not shown) provided on the bottom surface of the fuel pump module 20 so as to communicate with the motor pump 30 in the fuel pump module 20 so that the fuel in the main tank 11 can be filtered and sucked 60); The fuel pump module 20 includes a motor pump case A in which a motor pump 30 is inserted to suck fuel from the fuel tank 10 and a fuel pump The filter case part B of the filter part 40 to be filtered is injected into the integral case C and the main tank 11 is provided on the inner bottom surface opposed to the lower end part of the fuel pump module 20, And an auxiliary fuel cup (12) filled with the fuel of the tank (11) is formed.

As described above, according to the present invention, the case of the fuel pump module is injected into an integrated case without manufacturing and assembling the motor pump and the case of the filter unit, which are fastened in the fuel pump module, Thereby making it possible to reduce the manufacturing process / production time / production cost.

Further, the present invention has the effect of preventing detachment by firmly fixing the external filter portion provided at the lower end portion of the fuel pump module to filter the fuel at the correct position of the fuel pump module.

Further, according to the present invention, the bottom surface of the fuel pump module installed in the fuel tank is not in close contact with the inner bottom surface of the fuel tank, but has a simple bracket coupling structure in which only the upper surface is fastened to the fuel tank. It is effective.

Further, according to the present invention, the fuel tank is used in a dual form consisting of main and sub, so that it is possible to supply fuel more stably than when only a single tank of fuel is used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a bottom view of a bracket structure according to the present invention and an embodiment of a fixed fuel supply device for an external filter unit. FIG.
FIG. 2 is an exploded perspective view of an external filter unit in a bracket structure and an external filter fixed fuel supply apparatus according to the present invention. FIG.
3 is a perspective view of an embodiment showing a bracket structure and a fixed fuel supply device for an external filter part according to the present invention.
4 is a conceptual diagram showing an embodiment in which a bracket structure according to the present invention and an external filter fixed fuel supply device are installed in a fuel tank.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Furthermore, terms such as " first "and" second "are used herein for the purpose of description and in the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In an embodiment of the present invention, a fuel supply device is provided inside a fuel tank 10 to transfer fuel to an engine. The fuel supply device includes a main fuel tank 11 and a sub tank 13, A fuel tank (10) forming a storage space; The upper surface of the fuel tank 10 is coupled with the upper surface of the fuel tank 10 and is fixed to the main tank 11. The lower surface of the fuel tank 10 is spaced apart from the lower surface of the fuel tank 10 A fuel pump module 20 which simultaneously sucks fuel from the main tank 11 and the sub tank 13 and feeds the fuel to the engine; An outer filter portion (not shown) provided on the bottom surface of the fuel pump module 20 so as to communicate with the motor pump 30 in the fuel pump module 20 so that the fuel in the main tank 11 can be filtered and sucked 60); The fuel pump module 20 includes a motor pump case A in which a motor pump 30 is inserted to suck fuel from the fuel tank 10 and a fuel pump The filter case part B of the filter part 40 to be filtered is injected into the integral case C and the main tank 11 is provided on the inner bottom surface opposed to the lower end part of the fuel pump module 20, And an auxiliary fuel cup (12) filled with the fuel of the tank (11) is formed.

In addition, the external filter unit 60 may include a mesh body 61 to filter foreign substances. An engaging member 62 integrally formed on one surface of the net 61 and formed integrally therewith; A coupling hole portion 63 penetrating through the coupling member 62 for communicating the fuel injection hole 35 and the net 61 at the lower end of the motor pump 30; A fixing hole portion 64 penetrating through the engaging member 62 so that the fixing protrusion 36 at the lower end of the motor pump 30 is correspondingly fitted thereto; And a control unit.

The fixing hole portion 64 is provided with a fixing sleeve 65 for fixing the fixing protrusion 36 so that the fixing protrusion 36 is not detached from the fixing hole portion 64.

Hereinafter, the bracket structure and the external fuel filter fixed fuel supply device according to the preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

The bracket structure and external fuel filter fixed fuel supply device of the present invention include a fuel tank 10, a fuel pump module 20, and an external filter portion 60.

The fuel tank 10 is installed in the vehicle and is filled with fuel F. In the present invention, the interruption of the fuel tank 10 is divided into a main tank 11 and a sub tank 13 And has a plurality of fuel storage spaces.

For this, the fuel tank 10 has a saddle-shaped structure in which the inner bottom surface of the fuel tank 10 is protruded upward by a predetermined length, but the fuel tank 10 is not completely divided, And the sub tanks (13).

The fuel pump module 20 is installed inside the fuel tank 10 to take in the fuel in the fuel tank 10 and transfer it to the engine E. [

The fuel pump module 20 for this purpose includes a motor pump 30, a filter unit 40, a fuel amount measuring unit 50, and a pressure sensor unit 23.

The fuel pump module 20 according to the present invention includes a motor pump case A in which a motor pump 30 is mounted and a filter case 40 in which a filter unit 40 is mounted, (C) of the fuel pump module 20 are integrally formed so that the motor pump case A and the filter part case B are integrated with each other, And then the motor pump 30 and the filter unit 40 are inserted into the fuel pump module 20. As a result, manufacturing time and manufacturing cost are reduced, and the number of manufacturing processes is reduced, as compared with the case where the individual cases into which the motor pump 30 and the filter unit 40 are inserted are assembled and integrally assembled, It is possible to reduce the defective rate to be generated.

In the present invention, the fuel pump module 20 is not structured such that the bottom surface is in close contact with the inner bottom surface of the fuel tank 10, but the fuel pump module 20 is installed in the fuel tank 10, The upper surface of the pump module 20 is located on the same line as the upper surface of the fuel tank 10 and is fastened and fixed to each other so that the lower surface of the fuel pump module 20 is connected to the fuel tank 10 10 so that the fuel pump module 20 has a bracket connecting structure in which only the upper surface is fixed and suspended inside the fuel tank 10, It is possible to reduce the vibration of the motor.

The motor pump (ex: BLDC pump) 30 is installed upright on the integrated case C (the motor pump case A and the filter part case B) of the fuel pump module 20 described above. This motor pump 30 is provided inside the fuel pump module 20 provided in the main tank 11 (which may be installed in the sub tank 13 according to the embodiment of the user) The fuel that has passed through the filter portion 40 is sucked into the fuel pump module 20 after the fuel stored in the fuel pump module 11 is sucked and then transferred to the filter portion 40 provided on one side of the fuel pump module 20, The fuel is discharged from the upper portion of the engine 20 to the fuel discharge port 21 formed by the engine, the connecting hose or the like, and is transferred to the engine.

In addition, in the case of a bottom surface for sucking fuel in the main tank 11, such a motor pump is provided with a fuel injection hole 35 through which the motor pump 30 is sucked, A fixing protrusion 36 protruding outward is formed on the bottom surface of the adjacent motor pump 30 in the fuel injection hole 35 so that the outer filter portion 60 to be described later is positioned at an accurate position So that it can be fixed securely. This will be described in detail in the external filter unit 60 to be described later.

In addition, due to the negative pressure caused by the high-speed injection of the fuel, the motor pump 30 discharges fuel to the engine, fuel is sucked from the sub tank 13, and fuel is injected into the main tank 11 To be filled.

The motor pump 30 may further include a sub fuel supply member 31 having both ends open at one end and having a plurality of first and second inflow outlets at one end and a discharge port 34 at the other end, 1 inlet port 32 is connected to the motor pump 30 and the second inlet port 33 is connected to the fuel inlet port 33 in communication with the connecting hose which is once connected to the sub tank 13 above the fuel pump module 20 And the outlet 34 is connected to the first and second inflow outlets 32 and 33 at the lower end of the first inflow outlet 32 and is opened in the main tank 11 .

Thus, when the motor pump 30 injects the fuel in the main tank 11 at a high speed into the engine at high speed (the fuel in the main tank 11 is first fed to the engine via the filter unit 40) The negative pressure generated during the fuel injection of the motor pump 30 is transmitted to the first inlet 32 of the sub fuel supply member 31 connected to the motor pump 30, The fuel stored in the sub tank 13 is sucked through the second inflow outlet 33 communicating with one side of the main tank 11 and is mixed with the fuel of the main tank 11 through the discharge port 34 .

The filter unit 40 is installed at one side of the motor pump 30 inside the fuel pump module 20 and injects fuel of the main tank 11 through the motor pump 30 described above, When the fuel in the sub tank 13 flows into the tank 11, the fuel injected from the main tank 11 is not directly transferred to the engine, but passes through the filter unit 40 first, And is then transferred to the engine through the fuel discharge port 21 located at the upper end of the fuel pump module 20.

The fuel amount measuring unit 50 is installed on the outer circumference of the fuel pump module 20 immersed in the main tank 11 in which the fuel is stored and measures the fuel level in the main tank 11.

The fuel amount measuring unit 50 includes a variable resistance display unit and a float. The float is floated on the oil surface of the fuel in the fuel tank 10 (main tank 11) and is moved up and down according to the height of the oil level, The gauge formed at one end of the fuel pump module 20 is in contact with and rotatable with the variable resistance display portion formed on the outer periphery of the fuel pump module 20 to thereby deliver the remaining amount of fuel through the variable resistance value. 50 are known technologies in the fuel pump module 20, and the detailed description of the operating principle will be omitted.

The external filter unit 60 is installed on the bottom surface of the fuel pump module 20 and more specifically corresponds to a bottom surface of the motor pump 30 that sucks fuel in the fuel pump module 20.

The outer filter 60 for this purpose includes a net 61, a coupling member 62, a coupling hole 63, and a fixing hole 64.

The net 61 is a mesh or net-like body that allows the fuel in the main tank 11, which is introduced into the fuel pump module 20 through the motor pump 30, to be filtered when inhaled In the present invention, the intermediate portion has the shape of a convex rectangle, but it can be variously shaped according to various embodiments of the user and the shape of the main tank 11 and the like.

The coupling member 62 is a plastic material that is coupled to the protruding side of one side of the web 61 and has a coupling hole 63 and a fixing hole 64 which will be described later.

The coupling hole portion 63 is an hole penetrating the coupling member 62. The coupling hole portion 63 connects the fuel injection hole 35 formed in the bottom of the motor pump 30 inside the fuel pump module to the mesh 61, . That is, when the fuel is sucked through the motor pump 300, the fuel in the main tank 11 is filtered through the mesh 61 into the fuel pump module 20 through the engaging hole 63 of the engaging member 62 .

The fixing hole portion 64 is a hole which is formed at the adjacent position of the coupling hole portion 63 to the coupling member 62. The fixing hole portion 64 is formed such that the coupling hole portion 63 contacts the fuel The fixing projections 36 of the bottom surface of the motor pump 30 protruding outwardly at positions adjacent to the fuel injection holes 35 correspond to the fixing hole portions 64 when the injection holes 35 are fastened corresponding to the injection holes 35, .

The external filter unit 60 is rotated in a state of being coupled to the bottom surface of the fuel pump module 20 so that the position of the external filter unit 60 is changed, In order to prevent such problems, problems may arise.

In addition, the fixing protrusion 36 formed on the coupling member 62 corresponds to the fixing hole portion 64 and is fixed to the fixing sleeve 36 for fastening the fixing protrusion 36, The fixing sleeve 65 has a circular ring shape and a plurality of fixing sleeves 65 (toward the inside of the fixing hole 64) along the circumferential surface of the fixing sleeve 65 The fixing sleeve 65 is brought into close contact with the outer periphery of the fixing protrusion 36 so that the fixing protrusion 36 can be securely fixed to the fixing sleeve 36 when the fixing protrusion 36 is fitted in the fixing hole 64. [

When the fuel in the main tank 11 is sucked by the motor pump 30, foreign substances are filtered and sucked through the external filter unit 60 having a net shape. The foreign substances are filtered through the filter unit 40 installed inside the fuel pump module 20.

The pressure sensor unit 23 is installed on the upper surface of the fuel pump module 20 of the present invention and is connected to the fuel discharge port 21 on the upper surface of the fuel pump module 20, Is installed.

The pressure sensor unit 23 measures the internal pressure of the fuel pump module 20 (the pressure of the fuel discharge port 21) when the fuel is transferred to the engine, and the measured pressure is connected to the fuel pump module 20 The ECU transmits a signal to an electronic control unit (ECU) of the vehicle, and the ECU grasps the state of the vehicle through the received pressure to control the driving of the motor pump 30 that sucks and injects the fuel. )

That is, the optimum pressure and the fuel amount are pre-designated in accordance with the type of the vehicle and various conditions of the vehicle (such as the amount of the fuel supplied to the vehicle at the time of stoppage, stop, and various pressure values) The fuel pressure regulator 70 for regulating the pressure of the fuel flowing to the engine side is provided at the lower end of the fuel pump module 20 of the present invention. It is installed more.)

This reduces power consumption and improves fuel economy compared to a vehicle equipped with a fuel pump module 20 that is conventionally regulated in pressure by a regulator and supplies only a fixed fuel flow rate to the engine at all times.

In addition, in the present invention, a cup-shaped auxiliary fuel cup 12 is protruded upward from the bottom surface of the main tank 11 on which the fuel pump module 20 having the above structure is installed, The bottom surface of the pump module 20 can be positioned within the auxiliary fuel cup 12 for a predetermined length so that the fuel pump module 20 sucks fuel in the main tank 11 inside the auxiliary fuel cup 12 .

Of course, the auxiliary fuel cup 12 must have a structure (e.g., an outer periphery or the like communicating with the main tank 11) communicating with the main tank 11 and the auxiliary fuel cup 12 is provided in the main tank with a fuel pump module 20 ) To reduce the flow of the fuel due to the vibration of the fuel tank 10 and to prevent the problem of fuel suction of the fuel pump module 20 from occurring.

Further, a recovery line is further provided between the fuel pump module 20 and the engine E so that the fuel can be returned to the engine, returned to the engine, and then returned to the main tank 11 through the fuel pump module 20 .

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 is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: fuel tank 11: main tank
12: auxiliary fuel cup 13: sub tank
20: Fuel pump module 21: Fuel discharge port
22: fuel inlet 23: pressure sensor part
30: motor pump 31: sub fuel supply member
32: first inlet port 33: second inlet port
34: exhaust port 35: fuel injection hole
36: Fixing projection 40: Filter part
50: fuel amount measuring unit 60: external filter unit
61: netting 62:
63: engaging hole portion 64: fixed hole portion
65: Fixing sleeve 70: Fuel pressure gauge
A: Motor pump case B: Filter case
C: Case

Claims (3)

1. A fuel supply device installed inside a fuel tank (10) for transferring fuel to an engine,
A fuel tank (10) partitioned inside and forming a plurality of fuel storage spaces of the main tank (11) and the sub tank (13);
The upper surface of the fuel tank 10 is coupled with the upper surface of the fuel tank 10 and is fixed to the main tank 11. The lower surface of the fuel tank 10 is spaced apart from the lower surface of the fuel tank 10 A fuel pump module 20 which simultaneously sucks fuel from the main tank 11 and the sub tank 13 and feeds the fuel to the engine;
An outer filter portion (not shown) provided on the bottom surface of the fuel pump module 20 so as to communicate with the motor pump 30 in the fuel pump module 20 so that the fuel in the main tank 11 can be filtered and sucked 60); And,
The fuel pump module 20 includes a motor pump case A in which a motor pump 30 is inserted to suck fuel from the fuel tank 10 and a filter unit 40 for filtering the fuel sucked in the motor pump 30. [ (B) of the filter case (B) is injected into the integral case (C)
The main tank 11 is formed with an auxiliary fuel cup 12 filled with the fuel of the main tank 11 on an inner bottom surface opposed to the lower end of the fuel pump module 20. External filter unit fixed type fuel supply device.
The method according to claim 1,
The external filter unit 60
A mesh body 61 for filtering the foreign matter;
An engaging member 62 integrally formed on one surface of the net 61 and formed integrally therewith;
A coupling hole portion 63 penetrating through the coupling member 62 for communicating the fuel injection hole 35 and the net 61 at the lower end of the motor pump 30;
A fixing hole portion 64 penetrating through the engaging member 62 so that the fixing protrusion 36 at the lower end of the motor pump 30 is correspondingly fitted thereto;
And a fuel supply unit for supplying fuel to the fuel supply unit.
3. The method of claim 2,
In the fixed hole portion 64
Wherein a fixing sleeve (65) for fastening the fixing protrusion (36) is provided so that the fixing protrusion (36) is not detached from the fixing hole portion (64).
KR1020130165258A 2013-12-27 2013-12-27 Uel supply apparatus using connection structure of braket and fixed outside filter KR20150076725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130165258A KR20150076725A (en) 2013-12-27 2013-12-27 Uel supply apparatus using connection structure of braket and fixed outside filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130165258A KR20150076725A (en) 2013-12-27 2013-12-27 Uel supply apparatus using connection structure of braket and fixed outside filter

Publications (1)

Publication Number Publication Date
KR20150076725A true KR20150076725A (en) 2015-07-07

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