KR101774137B1 - Fuel tank for vehicle - Google Patents

Fuel tank for vehicle Download PDF

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Publication number
KR101774137B1
KR101774137B1 KR1020160000751A KR20160000751A KR101774137B1 KR 101774137 B1 KR101774137 B1 KR 101774137B1 KR 1020160000751 A KR1020160000751 A KR 1020160000751A KR 20160000751 A KR20160000751 A KR 20160000751A KR 101774137 B1 KR101774137 B1 KR 101774137B1
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KR
South Korea
Prior art keywords
fuel pump
stopper
hole
upper plate
fuel tank
Prior art date
Application number
KR1020160000751A
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Korean (ko)
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KR20170082160A (en
Inventor
계태홍
박창민
고형도
Original Assignee
주식회사 동희산업
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Priority to KR1020160000751A priority Critical patent/KR101774137B1/en
Publication of KR20170082160A publication Critical patent/KR20170082160A/en
Application granted granted Critical
Publication of KR101774137B1 publication Critical patent/KR101774137B1/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
    • 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
    • B60K15/063—Arrangement of tanks
    • 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
    • B60K15/063—Arrangement of tanks
    • B60K15/067—Mounting of tanks
    • 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
    • B60K2015/03243—Fuel tanks characterised by special pumps, the mounting thereof
    • 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
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03447—Arrangements or special measures related to fuel tanks or fuel handling for improving the sealing

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

Abstract

An end portion of a stopper bracket (20) fixed to an upper plate (11) of a fuel tank (10) at the time of inserting a fuel pump (30) into a fuel tank hole (13) It is possible to regulate the initial mounting position of the fuel pump 30 by interposing the stopper hole 33 formed in the skirt portion 32 of the fuel tank 30 into the stopper hole 33, The rotation of the fuel pump 30 can be prevented by the stopper bracket 20 inserted into the stopper hole 33 when the opening nut 60 is rotated.

Figure R1020160000751

Description

[0001] FUEL TANK FOR VEHICLE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel tank for a vehicle, and more particularly, to a fuel tank for a vehicle, which prevents rotation of the fuel pump when the fuel pump is mounted on a fuel cap, .

2. Description of the Related Art Generally, an engine of a vehicle is a device that converts thermal energy into mechanical rotational force by rotating a crankshaft using an explosive force generated by burning fuel in a combustion chamber.

In such an engine, fuel to be burned in the combustion chamber is continuously supplied, and a fuel tank capable of storing a certain amount of fuel in the vehicle is provided for continuous supply of fuel.

The fuel tank is provided with a fuel pump for supplying the fuel stored in the fuel tank to the engine of the vehicle. When the fuel pump is moved (rotational movement) when the fuel pump is mounted on the fuel tank, Tube or the like interferes with a structure (baffle or the like) inside the tank, which is disadvantageous in case of severe damage. Therefore, when the fuel pump is mounted, it is preferable to fix the fuel pump so as not to rotate.

Further, a sealing member for maintaining airtightness is provided between the fuel tank and the fuel pump so as to be in contact with the fuel pump. When the fuel pump is rotated during the mounting of the fuel pump, the rotation of the fuel pump causes the sealing member to twist, A twisting phenomenon occurs, and in this case, there is a disadvantage in that the sealing performance is lowered in a certain section of the sealing member, and leakage occurs.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Korean Patent Publication No. 10-2008-0018460

The present invention relates to a fuel pump that prevents rotation of a fuel pump when the fuel pump is mounted on a fuel tank to prevent damage and breakage of the fuel pump and further prevents twisting of a sealing member provided between the fuel tank and the fuel pump, And a fuel tank for a vehicle which can further improve the performance of the fuel tank.

To achieve the above object, according to the present invention, there is provided a fuel tank for a vehicle, comprising: a stopper bracket fixed at one end to an upper plate and provided with a fuel tank hole formed in an upper plate to expose the other end; And a fuel pump in which a stopper hole is formed to insert the other end of the stopper bracket exposed to the fuel tank hole when the fuel pump is inserted and installed in the fuel tank hole.

Wherein the fuel pump includes a head portion exposed to the outside of the top plate and a skirt portion protruding downward from a bottom surface of the head portion; And a stopper hole opened downward is formed in the skirt portion.

A seating groove is formed in the upper plate around the fuel tank hole; A sealing member is installed in the seating groove; And the sealing member is pressed by the head portion of the fuel pump to maintain the airtightness between the top plate and the fuel pump.

The upper plate is fixedly coupled with a fixture having a male screw on the outer circumferential surface to receive the head portion and the sealing member of the fuel pump; Wherein the fixing hole is coupled with an opening nut having a female screw on an inner peripheral surface thereof; And a pressing part for fixing the fuel pump in contact with the head part of the fuel pump when the opening nut is coupled to the fixture is integrally bent at the inner end of the opening nut.

And a nut cover covering the opening nut to cover the opening nut.

And the rotation of the fuel pump is prevented by the other end of the stopper bracket inserted into the stopper hole when the opening nut is engaged with the fixture.

And the stopper bracket is welded to the bottom surface of the upper plate and is not exposed to the outside.

The stopper bracket includes a base portion welded in a superposed state on a bottom surface of the upper plate and extending horizontally along the upper plate; A bent portion formed in a step-like shape in an upward direction from an end of the base portion; And a stopper portion extending horizontally at an end of the bent portion and inserted into the stopper hole; Wherein the stopper portion is pressed by the skirt portion in a state of being inserted into the stopper hole when the fuel pump is installed; And the bent portion is elastically deformed downward when the stopper portion is pressed by the skirt portion.

According to the present invention, when the end portion of the stopper bracket fixed to the upper plate of the fuel tank is inserted into the stopper hole formed in the skirt portion of the fuel pump at the time of inserting the fuel pump into the fuel tank hole, the initial installation position of the fuel pump can be regulated It is possible to prevent rotation of the fuel pump by the stopper bracket inserted into the stopper hole when the opening nut is rotated to couple the opening nut to the fixture, thereby preventing damage and breakage of various electric wires and tubes connected to the fuel pump There is an effect that can be.

Further, according to the present invention, since the fuel pump does not rotate during the rotation coupling of the opening nut, the torsional twisting phenomenon of the sealing member can be eliminated, thereby further improving the sealing performance between the top plate of the fuel tank and the head portion of the fuel pump There is also an effect that can be improved.

Further, according to the present invention, when the fuel pump is installed in the fuel tank hole, the stopper portion and the bent portion of the stopper bracket are elastically deformed by the pressing of the skirt portion, and the sealing member is sufficiently pressurized by the head portion of the fuel pump Accordingly, the sealing member can exhibit a further improved sealing performance.

1 is a perspective view of a fuel tank to which a stopper bracket and a stopper hole are applied according to the present invention,
FIG. 2 is an exploded perspective view of a component installed in a fuel tank hole according to the present invention,
Fig. 3 is an enlarged view of a portion where the stopper bracket is installed in Fig. 2,
Fig. 4 is a cross-sectional view taken along the line I-I in Fig. 3,
FIG. 5 is a view showing the state where the opening nut is coupled to the fixture in FIG.

Hereinafter, a vehicle fuel tank according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 4, the fuel tank 10 for a vehicle according to the present invention comprises a combination of a top plate 11 and a bottom plate 12 made of a steel material, A fuel tank hole 13 is formed.

A stopper bracket 20 is installed on the upper plate 11 of the fuel tank 10 according to the present invention. One end of the stopper bracket 20 is fixedly connected to the upper plate 11 by welding, (13).

The fuel pump 30 includes a head portion 31 exposed to the outside of the upper plate 11 when installed in the fuel tank hole 13, And a skirt portion 32 which protrudes downward from the bottom surface of the head portion 31 and is located in the fuel tank hole 13.

A stopper hole 33 is formed in the skirt portion 32. A stopper bracket 20 exposed to the fuel tank hole 13 is provided in the stopper hole 33 when the fuel pump 30 is installed. Is inserted.

The upper plate 12 is formed on the upper plate 11 around the fuel tank hole 13 so that the upper plate 12 is bent so that a seating groove 14 is formed and a rubber material such as an O- And the sealing member 40 is pressed by the head portion 31 at the time of installing the fuel pump 30 to keep the airtightness between the top plate 11 and the fuel pump 30 .

The upper plate 11 is fixedly welded with a fixture 50 having a male screw 51 formed on its outer circumferential surface to receive the head 31 and the sealing member 40 of the fuel pump 30, The opening end of the opening nut 60 is coupled to the head portion of the fuel pump 30 when the opening nut 60 is coupled to the fixture 50 31 and the pressing portion 62 for fixing the fuel pump 30 are integrally bent.

The nut cover 70 is formed of a rubber material and has a grommet structure. The nut cover 70 is formed in the circumferential direction of the lower surface of the opening nut 60 And covers the space between the head part 31 of the fuel pump 30 and the opening nut 60 including the upper part of the opening nut 60 so that the foreign matter or the like is introduced or accumulated And prevents the occurrence of corrosion.

The stopper bracket 20 according to the present invention is welded to the bottom surface of the upper plate 11 and is not exposed to the outside, thereby improving the appearance of the fuel tank 10.

When the sealing member 40 is provided in the seating groove 14 of the upper plate 11 and the fuel pump 30 is inserted into the fuel tank hole 13 according to the present invention, The other end of the stopper bracket 20 is inserted into the stopper hole 33 formed in the stopper hole 33. In this state, the opening nut 60 is rotated so that the male screw 51 and the female screw 61 are engaged, The seal member 40 is pressed against the top plate 11 of the fuel tank 10 by the head portion 31 of the fuel pump 30 while being seated in the seat groove 14, And the fuel pump 30 is held by the sealing member 40.

When the opening nut 60 is rotated to fasten the opening nut 60 to the fixture 50, the fuel pump 30 moves the stopper bracket 20 with the stopper hole 33 formed in the skirt portion 32, The fuel pump 30 does not rotate and only the opening nut 60 rotates. Accordingly, it is possible to prevent damage and damage of various electric wires and tubes connected to the fuel pump 30 .

The conventional conventional structure is such that the stopper hole is not formed in the skirt portion 32 of the fuel pump 30 and the stopper bracket 20 is not provided on the upper plate 11 of the fuel tank 10. In this case, Accordingly, when the opening nut is rotated to engage the opening nut 60, the fuel pump 30 rotates together with the opening nut 60. In this case, various electric wires or tubes connected to the fuel pump 30, There is a disadvantage in that it is interfered with the inner structure and the damage is severely caused.

The present invention is characterized in that the stopper bracket 20 fixed to the upper plate 11 of the fuel tank 10 and the stopper hole 33 formed in the skirt portion 32 of the fuel pump 30 are used as the fuel tank hole 13 The position of the fuel pump 30 is regulated by using the end of the stopper bracket 20 and the stopper hole 33 when the fuel pump 30 is inserted and further the opening nut 60 The rotation of the fuel pump 30 is prevented when the opening nut 60 is rotated in order to couple the fuel pump 30 to the fuel pump 30, thereby preventing damage and damage to various electric wires and tubes connected to the fuel pump 30.

In the conventional structure without the stopper hole and the stopper bracket, as the fuel pump rotates together with the rotation of the opening nut, the sealing member, which is in contact with the head portion of the fuel pump, is twisted and partially twisted by the rotational friction, There is a disadvantage in that the leakage performance is lowered due to the lowering of the sealing performance in a certain section of the sealing member.

However, according to the present invention, the fuel pump 30 does not rotate during the rotation coupling of the opening nut 60, so that the sealing member 40 is not twisted and twisted, The sealing performance between the top plate 11 of the fuel tank 10 and the head portion 31 of the fuel pump 30 can be further improved.

The stopper bracket 20 according to the present invention includes a base portion 21 welded in a superposed state to a bottom surface of the upper plate 11 and extending horizontally along the upper plate 11; A bent portion 22 bent in a step-like shape upward from the end of the base portion 21; And a stopper portion 23 horizontally extending from an end of the bent portion 22 and inserted into the stopper hole 33.

The stopper portion 23 is pressed by the skirt portion 32 in a state of being inserted into the stopper hole 33 when the fuel pump 30 is installed and the stopper portion 23 is pressed against the skirt portion 32 The bent portion 22 including the stopper portion 23 is elastically deformed downward from the connecting point between the base portion 21 and the bent portion 22 when pressed by the pressing portion 22.

If the bending portion 22 is not elastically deformed downward, the stopper portion 23 supports the skirt portion 32 with a high rigidity. In this case, the sealing member 40 is not sufficiently pressed by the head portion 31 The present invention is not limited to the structure in which the bending portion 22 is elastically deformed downward when the fuel pump 30 is installed so that the head portion 31 presses the sealing member 40 sufficiently So that the sealing performance of the sealing member 40 can be further improved.

The end portion of the stopper bracket 20 fixed to the top plate 11 of the fuel tank 10 at the time of inserting the fuel pump 30 into the fuel tank hole 13 is filled with fuel The initial mounting position of the fuel pump 30 can be regulated by being inserted into the stopper hole 33 formed in the skirt portion 32 of the pump 30 and the opening nut 60 The rotation of the fuel pump 30 can be prevented by the stopper bracket 20 inserted into the stopper hole 33 when the opening nut 60 is rotated in order to rotate the opening of the fuel pump 30, And the damage or breakage of the tube can be prevented.

In addition, the present invention prevents the tilting of the sealing member 40 due to the rotation of the fuel pump 30 during rotation coupling of the opening nut 60, 11 and the head portion 31 of the fuel pump 30 can be further improved.

The stopper portion 23 and the bent portion 22 of the stopper bracket 20 are moved downward by the urging of the skirt portion 32 when the fuel pump 30 is installed in the fuel tank hole 13 The sealing member 40 is elastically deformed so that the sealing member 40 is sufficiently pressurized by the head portion 31 of the fuel pump 30 so that the sealing member 40 can exhibit a further improved sealing performance.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 - Fuel tank 11 - Top plate
12 - Lower plate 20 - Stopper bracket
30 - Fuel pump 31 - Head part
32 - skirt portion 33 - stopper hole
40 - sealing member 50 - fastener
60 - Opening nut 70 - Nut cover

Claims (8)

A stopper bracket fixed at one end to the upper plate and exposed at the other end by a fuel tank hole formed in the upper plate; And
And a fuel pump having a stopper hole for inserting the other end of the stopper bracket exposed in the fuel tank hole when the fuel pump is inserted and installed in the fuel tank hole;
Wherein the fuel pump includes a head portion exposed to the outside of the top plate and a skirt portion protruding downward from a bottom surface of the head portion;
And a stopper hole formed downward is formed in the skirt portion. delete The method according to claim 1,
A seating groove is formed in the upper plate around the fuel tank hole;
A sealing member is installed in the seating groove;
Wherein the sealing member is pressed by the head portion of the fuel pump to maintain airtightness between the top plate and the fuel pump. The method of claim 3,
The upper plate is fixedly coupled with a fixture having a male screw on the outer circumferential surface to receive the head portion and the sealing member of the fuel pump;
Wherein the fixing hole is coupled with an opening nut having a female screw on an inner peripheral surface thereof;
Wherein a pressing portion for fixing the fuel pump in contact with the head portion of the fuel pump when the opening nut is coupled to the fixture is integrally formed at the inner end of the opening nut. The method of claim 4,
Further comprising: a nut cover covering the opening nut to cover the opening nut. The method of claim 4,
And the rotation of the fuel pump is prevented by the other end of the stopper bracket inserted into the stopper hole when the opening nut is engaged with the fixture. The method according to claim 1,
Wherein the stopper bracket is welded to the bottom surface of the upper plate and is not exposed to the outside. The method according to claim 1,
The stopper bracket includes a base portion welded in a superposed state on a bottom surface of the upper plate and extending horizontally along the upper plate;
A bent portion formed in a step-like shape in an upward direction from an end of the base portion; And
And a stopper portion horizontally extending from an end of the bent portion and inserted into the stopper hole;
Wherein the stopper portion is pressed by the skirt portion in a state of being inserted into the stopper hole when the fuel pump is installed;
And the bent portion is elastically deformed downward when the stopper portion is pressed by the skirt portion.
KR1020160000751A 2016-01-05 2016-01-05 Fuel tank for vehicle KR101774137B1 (en)

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KR1020160000751A KR101774137B1 (en) 2016-01-05 2016-01-05 Fuel tank for vehicle

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Application Number Priority Date Filing Date Title
KR1020160000751A KR101774137B1 (en) 2016-01-05 2016-01-05 Fuel tank for vehicle

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KR20170082160A KR20170082160A (en) 2017-07-14
KR101774137B1 true KR101774137B1 (en) 2017-09-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200115741A (en) 2019-03-25 2020-10-08 주식회사 동희산업 Line fixing device for vehicle pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102310503B1 (en) * 2017-08-28 2021-10-08 현대자동차주식회사 Mounting structure for fuel pump in fuel tank of vehicle and method for assembling of fuel pump in fuel tank of vehicle using the structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009091957A (en) * 2007-10-05 2009-04-30 Honda Motor Co Ltd Fuel pump mounting structure
JP2009221898A (en) 2008-03-13 2009-10-01 Honda Motor Co Ltd Tank mounting structure of fuel pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009091957A (en) * 2007-10-05 2009-04-30 Honda Motor Co Ltd Fuel pump mounting structure
JP2009221898A (en) 2008-03-13 2009-10-01 Honda Motor Co Ltd Tank mounting structure of fuel pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200115741A (en) 2019-03-25 2020-10-08 주식회사 동희산업 Line fixing device for vehicle pump

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