KR101223450B1 - Method to unite canister with fuel-tank - Google Patents

Method to unite canister with fuel-tank Download PDF

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Publication number
KR101223450B1
KR101223450B1 KR1020100094245A KR20100094245A KR101223450B1 KR 101223450 B1 KR101223450 B1 KR 101223450B1 KR 1020100094245 A KR1020100094245 A KR 1020100094245A KR 20100094245 A KR20100094245 A KR 20100094245A KR 101223450 B1 KR101223450 B1 KR 101223450B1
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KR
South Korea
Prior art keywords
canister
groove
fuel tank
nipple
fuel
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KR1020100094245A
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Korean (ko)
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KR20120032745A (en
Inventor
김창한
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현대자동차주식회사
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Priority to KR1020100094245A priority Critical patent/KR101223450B1/en
Publication of KR20120032745A publication Critical patent/KR20120032745A/en
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Abstract

The present invention provides a method of integrally forming a canister in a fuel tank in which an upper groove and a lower groove are partially in contact with an upper groove and a lower groove, the method comprising: loading activated carbon in an upper groove; On the upper surface, a purge nipple connected to the engine, a loading ripple connected to the fuel pump, and an air nipple into which outside air is introduced are formed. On the lower surface, the air nipple is separated from the purge nipple and the loading ripple and inserted into the activated carbon to be split. Seating a canister plate having a diaphragm formed above the upper groove; And bonding the edge of the canister plate to the fuel tank by heat fusion.
According to the present invention having the above-described configuration, it is not necessary to bend one side of the fuel tank in order to separately install the canister, thereby ensuring the capacity of the fuel tank.

Description

How to integrally construct a canister in a fuel tank {Method to unite canister with fuel-tank}

The present invention relates to a method of integrally forming a canister in a fuel tank for a vehicle, and more particularly, a specific portion of the upper and lower surfaces thereof is recessed, and the portions of the canisters are brought into contact with each other to join the support beams. It relates to a method for mounting a canister to a kiss-off fuel tank to be formed.

A fuel device of a vehicle is a device for storing and supplying fuel consumed by an engine, and includes a fuel tank for storing fuel, a fuel pump for supplying fuel in the fuel tank to a carburetor, a fuel filter for removing impurities from fuel, and the like. And a canister for collecting the vaporized fuel from the tank.

The main component of gasoline is hydrocarbon (HC). Ventilation is required to prevent negative pressure when internal pressure increases due to volume expansion due to temperature increase in the fuel tank. In order to prevent the need for an evaporative gas control device.

Canister is the most widely used form of activated carbon as a control device for the evaporation gas. Activated carbon has a characteristic of adsorbing fuel vapor well and leaving the fuel vapor again when air flows.

Therefore, when the engine is stopped, gaseous fuel is collected in the canister filled with activated carbon, and when the engine is operated, new air is injected from the outside of the canister to supply fuel adsorbed on the activated carbon to the intake of the engine.

The canister is connected to the intake system of the engine through the purge line, the fuel tank is connected to the loading line, and configured to allow the outside air to flow in. Therefore, purge nipples, loading nipples, and air nipples are formed on the upper surface of the canister, respectively.

Meanwhile, in the conventional structure, the fuel tank and the canister are separately configured, but as shown in FIG. 1, in the case of the fuel tank of the small vehicle, the fuel pump 200 is built in one side of the fuel tank 1. The corner portion was bent and the canister 300 was mounted on the portion.

In addition, the fuel tank 1 of the small vehicle is made of a synthetic resin material to reduce the weight, but is manufactured in a kiss-off structure to secure proper structural rigidity. The kiss-off structure is a structure in which upper and lower portions of the upper surface and the lower surface contact each other to be bonded to each other to form a support beam therein, and not only improve the structural safety of the fuel tank 1, but also the fuel tank 1 The internal pressure stabilizes the positive and negative pressures, and reduces the noise. That is, since the upper surface and the lower surface of the fuel tank 1 are attached, even if pressure is applied to the fuel tank 1, the deformation of the fuel tank is suppressed and the flow noise is reduced by suppressing the rapid flow of the fuel.

However, the upper surface and the lower surface is in contact with the portion where the support beam is formed, so that the capacity of the fuel tank is reduced by the volume of the upper groove formed on the upper surface and the lower groove formed on the lower surface.

In addition, when the canister is bent at the corner portion for separately mounting as shown in FIG. 1, the rapid change in shape may increase the flow noise of the internal fuel and worsen the durability against the internal pressure and the durability in the collision. There was a possibility.

Therefore, there is a need to solve the above problems and to optimize the space of the fuel tank, the present invention is to provide a method for integrally configuring the canister in the fuel tank in order to respond to this.

In order to achieve the above object, the present invention provides a method in which a canister is integrally formed in a fuel tank in which upper and lower grooves contact a specific part of the upper and lower surfaces to form an activated carbon in the upper groove of the fuel tank. The step of loading; and the upper surface is a purge nipple connected to the engine, the loading ripple connected to the fuel pump and the air nipple into which the outside air is introduced is formed, the lower surface is isolated from the purge nipple and the loading ripple And seating a canister plate having a diaphragm formed therein so as to be inserted into the activated carbon and partitioned onto the upper groove. And bonding the edge of the canister plate to the fuel tank by heat fusion.

The canister plate has a disc shape, and a circular groove is formed in a ring shape at the edge of the upper groove so that the canister plate is seated.

In addition, the bottom surface of the canister plate is formed along the rim of the fusion projections that are fused at the time of thermal welding on the circular groove.

In addition, the step of installing a lower filter on the bottom surface of the upper groove and attaching the upper filter to the bottom surface of the canister plate, the air nipple is formed in a hemispherical (hemisphere) type air filter Is fitted.

According to the present invention having the above configuration, it is not necessary to bend one side of the fuel tank to separately install the canister, so that the capacity of the fuel tank can be secured, and the foregoing can be achieved by optimizing the shape of the fuel tank and eliminating unnecessary space. As described above, there is an effect that can solve the problems caused by bending corners.

In addition, a circular groove is formed at the edge of the upper groove to prevent protrusion of the canister plate, and a fusion protrusion is formed at the heat fusion portion to reduce the thickness of the canister due to heat fusion.

In addition, a lower filter and an upper filter as well as an air filter may be installed to prevent foreign matter from being mixed in the evaporated gas sucked into the engine.

1 is a perspective view showing a state of a conventional fuel tank and a cross-sectional view and a cross-sectional enlarged view of a portion having a support beam formed therein;
2 is a perspective view of a fuel tank in which a canister is integrated according to a preferred embodiment of the present invention;
3 is a plan view showing a state in which a circular groove is formed in the fuel tank of the present invention;
4A is a perspective view of a canister plate according to a preferred embodiment of the present invention;
4B is a bottom perspective view of a canister plate according to a preferred embodiment of the present invention.
Figure 4c is a bottom perspective view showing the upper filter attached to the lower canister,
5 is a partial cross-sectional view showing a state in which the canister is configured in the upper groove of the fuel tank;
6 is a cross-sectional view of a fuel tank constructed in accordance with a preferred embodiment of the present invention.

The fuel tank of the present invention, as shown in Figure 2, is characterized in that it is configured integrally by moving from the 'A' position of the corner of the fuel tank 100 to the 'B' position formed with the upper groove.

As described above, the fuel tank 1 having the kiss-off structure is bonded to the upper surface and the lower surface in a specific portion, the upper groove 110 and the lower groove 120 is formed (see reference numerals of FIG. 5). The fuel tank 1 of the present invention is characterized by integrating the canister into the upper groove 110 (formed more deeply than the lower groove as shown in FIG. 6), hereinafter with reference to the drawings a preferred embodiment of the present invention. Examples are described in more detail.

As shown in Figure 3, the fuel tank 100 of the present invention is formed with a ring-shaped circular groove 111 in the outer edge portion of the upper groove (110). The circular groove 111 is formed to a predetermined depth (preferably as long as the thickness of the canister plate) so that the edge portion of the canister plate 10 can be seated.

In addition, the lower filter 30 is first seated on the bottom surface of the upper groove 110, and activated carbon having a powder or a plurality of lumps is loaded thereon.

The canister plate 10 is mounted on the activated carbon, and the detailed view of the canister plate 10 is as shown in FIGS. 4A to 4C.

Referring to the drawings, the canister plate 10 is a disk-shaped shape having a diameter that can be mounted in the upper groove 110, the upper surface through the purge nipple 12, the loading line connected to the engine through the purge line The loading ripple 13 and the air filter connected to the fuel pump are fitted to form an air nipple 11 into which outside air is introduced.

4B, the diaphragm 14 is separated from the purge nipple 12 and the loading ripple 13 on the bottom surface of the canister plate 10 so as to be inserted into and split into activated carbon. Is formed. That is, the diaphragm 14 is formed in a "V" shape so as to fit in the upper groove 110, the hole (11 ') of the air nipple (11) purge nipple 12 and the loading nipple And formed to separate the holes 12 'and 13' of (13).

In addition, the lower surface of the canister plate 10 is formed to protrude a fusion protrusion 15 that is melted when the heat welding to the edge portion along the circumference. The fusion protrusion 15 is mounted on the circular groove 111 and then melted (by the heat fusion equipment) to bond the canister plate 10. The upper filter 20 is attached to cover the holes 11 ′, 12 ′, and 13 ′ through which the boil-off gas is introduced into and out of the fusion protrusion 15 to prevent the inflow of foreign substances. .

Then, the lower filter 30 is placed inside the upper groove 110 and the canister plate 10 is bonded after the activated carbon is filled as shown in FIGS. 5 and 6. 6 is a cross-sectional view showing a front view of the diaphragm)

As described above, in the fuel tank 100 of the present invention, the upper groove 110 is formed larger than the lower groove 120, and the canister plate after loading the lower filter 30 and activated carbon in the upper groove 110. The canisters are integrally formed by combining (10) by heat fusion. The loading nipple 13 protruding from the canister plate 10 is connected to the fuel pump 200 through a loading line to introduce the evaporated gas into the upper groove 110, and the purge nipple 12 passes through the purge line. It is connected to the intake manifold. The air nipple 11 is fitted with an air filter having a hemispherical cap shape. The canister, which is configured as described above, allows the evaporation gas inside the fuel tank to flow through the loading line to be adsorbed onto activated carbon. It operates to supply gas particles.

As described above, the embodiments disclosed in the present specification and drawings are only illustrative of specific examples in order to facilitate understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10: canister plate
11: air nipple
12: fuzzy nipple
13: loading nipple
15: fusion protrusion
20: upper filter
30: Lower filter

Claims (5)

  1. In the method of integrally forming the canister in the fuel tank in which the upper surface and the lower surface is partially in contact with the upper groove and the lower groove,
    Loading activated carbon into the upper groove;
    On the upper surface, a purge nipple connected to the engine, a loading ripple connected to the fuel pump, and an air nipple into which outside air is introduced are formed. On the lower surface, the air nipple is separated from the purge nipple and the loading ripple and inserted into the activated carbon to be split. Seating a canister plate having a diaphragm formed above the upper groove;
    Bonding the edge of the canister plate to the fuel tank by heat fusion;
    Placing a lower filter on a bottom surface of the upper groove; And
    Attaching an upper filter to the bottom surface of the canister plate; and a method for integrally constructing a canister in a fuel tank, characterized in that it comprises a.
  2. 2. The method of claim 1, wherein the canister plate has a disc shape, and a circular groove is formed in a ring shape at the edge of the upper groove so that the canister plate is seated.
  3. 3. The method of claim 2, wherein the bottom surface of the canister plate is integrally formed with a fuel tank, characterized in that a fusion protrusion is formed along an edge of the fusion protrusion which is melted upon thermal fusion over a circular groove.
  4. delete
  5. The method of any one of claims 1 to 3, wherein the air nipple is fitted with an air filter formed in a hemisphere shape.
KR1020100094245A 2010-09-29 2010-09-29 Method to unite canister with fuel-tank KR101223450B1 (en)

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KR1020100094245A KR101223450B1 (en) 2010-09-29 2010-09-29 Method to unite canister with fuel-tank

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Application Number Priority Date Filing Date Title
KR1020100094245A KR101223450B1 (en) 2010-09-29 2010-09-29 Method to unite canister with fuel-tank

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KR20120032745A KR20120032745A (en) 2012-04-06
KR101223450B1 true KR101223450B1 (en) 2013-01-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101755895B1 (en) * 2015-11-24 2017-07-07 현대자동차주식회사 Fuel auxiliary tank for flexible fuel vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258813A (en) * 1986-05-06 1987-11-11 Nissan Motor Co Ltd Vapor discharging device for fuel tank for vehicle
KR19980034659U (en) * 1996-12-11 1998-09-15 김영귀 Canister Junction Structure
KR20070003319A (en) * 2005-07-01 2007-01-05 현대자동차주식회사 Canister structure of vehicle
KR20090110140A (en) * 2008-04-17 2009-10-21 현대자동차주식회사 Canister for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258813A (en) * 1986-05-06 1987-11-11 Nissan Motor Co Ltd Vapor discharging device for fuel tank for vehicle
KR19980034659U (en) * 1996-12-11 1998-09-15 김영귀 Canister Junction Structure
KR20070003319A (en) * 2005-07-01 2007-01-05 현대자동차주식회사 Canister structure of vehicle
KR20090110140A (en) * 2008-04-17 2009-10-21 현대자동차주식회사 Canister for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101755895B1 (en) * 2015-11-24 2017-07-07 현대자동차주식회사 Fuel auxiliary tank for flexible fuel vehicle
US9937784B2 (en) 2015-11-24 2018-04-10 Hyundai Motor Company Auxiliary fuel tank for flexible fuel vehicle

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