KR20140048809A - Pipe coupling for fuel tank - Google Patents

Pipe coupling for fuel tank Download PDF

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Publication number
KR20140048809A
KR20140048809A KR20130120667A KR20130120667A KR20140048809A KR 20140048809 A KR20140048809 A KR 20140048809A KR 20130120667 A KR20130120667 A KR 20130120667A KR 20130120667 A KR20130120667 A KR 20130120667A KR 20140048809 A KR20140048809 A KR 20140048809A
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KR
South Korea
Prior art keywords
fuel tank
reinforcing rib
pipe
connection pipe
flange
Prior art date
Application number
KR20130120667A
Other languages
Korean (ko)
Inventor
준페이 호리카와
히데아키 다카하시
Original Assignee
가부시키가이샤 니프코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 가부시키가이샤 니프코 filed Critical 가부시키가이샤 니프코
Publication of KR20140048809A publication Critical patent/KR20140048809A/en

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Classifications

    • 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
    • B60K15/01—Arrangement of fuel conduits
    • 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
    • B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
    • 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
    • B60K15/04—Tank inlets
    • B60K2015/0458—Details of the tank inlet
    • B60K2015/0477—Details of the filler neck tank side

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

(Problem) Provide the pipe coupling for fuel tank which has sufficient strength in a connection pipe part, without using a metal reinforcement collar.
(Solution means) The present invention comprises a flange portion 20 abuts against the circumferential edge of the opening provided on the wall surface of the fuel tank, and a connecting tube portion 30 is provided so as to protrude out of the fuel tank from the flange portion, the connection Reinforcing rib 60 is formed inside the pipe portion 30 is a pipe coupling 10 for the fuel tank, characterized in that formed.

Description

Pipe Coupling for Fuel Tank {PIPE COUPLING FOR FUEL TANK}

The present invention relates to a pipe coupling mounted on a fuel tank and used for connection of a pipe such as a fuel supply pipe.

In order to connect piping, such as a fuel supply pipe, to a fuel tank, it is common practice to provide a pipe coupling to a fuel tank previously.

The conventional pipe coupling 100 of this type has a flange portion 120 which abuts against a circumferential edge of an opening provided in a wall surface of a fuel tank, as shown in FIG. 5 (based on FIG. 3 of Patent Document 1), The connection pipe portion 130 is provided to protrude out of the fuel tank from the flange portion 120. And the metal reinforcement collar {collar 160} is provided in the inner peripheral side of the connection pipe part 130. As shown in FIG.

Generally, when connecting piping P, such as a fuel supply pipe, to the connection pipe part 130, the fastening fixation using the fastener H, such as a hose clamp and a hose band, is employ | adopted. And the fastening force of the fastening fixation is set relatively firmly in order to prevent the piping P from coming off. Therefore, in order to avoid the damage of the connection pipe part 130, etc., the metal reinforcement collar 160 is used.

Patent Document 1: Japanese Patent Application Laid-Open No. 2010-111316 Patent Document 2: Japanese Patent No. 4253620

The metal reinforcement collar 160 is sufficiently effective to reliably reinforce the strength of the connection pipe part 130. However, the cost is high because it is made of metal. In addition, in order to fix the metal reinforcement collar 160, a thermal caulking process or the like is required, and a dedicated facility for the same is required. On the other hand, even if the reinforcement collar 160 is manufactured by resin, it cannot become sufficient in strength.

This invention was devised based on the above knowledge. It is an object of the present invention to provide a fuel tank pipe coupling having sufficient strength in a connecting pipe portion without using a metal reinforcing collar.

The present invention includes a flange portion which abuts against a circumferential edge of an opening provided on a wall surface of a fuel tank, and a connection pipe portion provided to protrude out of the fuel tank from the flange portion, and a reinforcing rib inside the connection pipe portion. The pipe coupling for the fuel tank, characterized in that is formed so as to span.

According to the present invention, since the reinforcing ribs are formed inside the connection pipe portion, sufficient strength can be realized in the connection pipe portion without using a metal reinforcing collar. In particular, according to the findings of the inventors of the present invention, even in the case of a resin reinforcing rib, sufficient strength can be realized in the connecting pipe portion. Therefore, it is very advantageous in cost compared with the conventional pipe coupling for fuel tanks using metal reinforcement collars.

The reinforcing rib is preferably provided to have a radiation portion extending in a radial shape centering on the central axis of the connection pipe portion, and an annular portion substantially concentric with the inner end face of the connection pipe portion. In this case, the advantage that the arrangement balance of the reinforcing ribs is good and is very suitable in terms of reinforcement strength, and that the flow path resistance in the connecting pipe portion is also low is obtained. In this case, an anti-siphon function can also be achieved.

Above all, at least at the time of the present application, it is also included in the scope of the present invention that the reinforcing ribs consist only of the radiation portion extending radially around the center axis of the connection pipe portion.

The connecting pipe portion may also protrude from the flange portion to the inside of the fuel tank. In this case, it is preferable that the reinforcing rib is provided inside the connection pipe portion in the outer region of the fuel tank with respect to the flange portion. This is because fasteners such as hose clamps and hose bands are applied to the connection pipe portion in the outer region of the fuel tank with respect to the flange portion. In addition, when the connection pipe portion also protrudes from the flange portion to the inside of the fuel tank, a valve device may be provided inside the connection pipe portion of the inner region. As the valve device, for example, a known flap valve device can be applied.

Moreover, it is preferable that a connection pipe part has an outer pipe part integrated with a flange part, and an inner pipe part couple | bonded (fitting, welding, insert molding, etc.) with respect to an outer pipe part. In this case, the reinforcing rib is provided inside the inner tube portion. In such a case, since the inner tube portion is not directly involved when the outer tube portion integral with the flange portion is attached to the fuel tank, the fear of damaging the inner tube portion, which has a large number of parts and tends to be expensive, is remarkably reduced. .

According to the present invention, since the reinforcing ribs are formed inside the connection pipe portion, sufficient strength can be realized in the connection pipe portion without using a metal reinforcing collar. In particular, according to the findings of the present inventor, even in the case of a resin reinforcing rib, sufficient strength can be realized in the connecting pipe portion. Therefore, it is very advantageous in cost compared with the conventional pipe coupling for fuel tanks using metal reinforcement collars.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic front view of the pipe coupling for fuel tanks of one Embodiment of this invention.
FIG. 2 is a longitudinal cross-sectional view taken along line BB of FIG. 1. FIG.
3 is a schematic plan view of a pipe coupling for a fuel tank of FIG. 1.
FIG. 4 is a view similar to FIG. 3 showing a modification of the reinforcing rib. FIG.
5 is a schematic view of a pipe coupling for a conventional fuel tank.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described in detail with reference to attached drawing.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic front view of the pipe coupling for fuel tanks of one Embodiment of this invention. FIG. 2 is a longitudinal cross-sectional view taken along line B-B in FIG. 1. FIG. 3 is a schematic plan view of a pipe coupling for a fuel tank of FIG. 1.

In particular, as shown in FIG. 1 and FIG. 2, the fuel tank pipe coupling 10 of the present embodiment includes a flange portion 20 which abuts against a circumferential edge of an opening provided in a wall surface of a fuel tank (not shown), and a flange portion. A connecting pipe portion 30 provided to protrude to the outside of the fuel tank (upper side in FIG. 2) is provided at 20.

The connection pipe part 30 of this embodiment also protrudes inside the fuel tank (upper side of FIG. 2) with respect to the flange part 20. As shown in FIG. And as shown in FIG. 2, the connection pipe part 30 is the outer pipe part 31 integrated with the small flange 21 which comprises a part of the flange part 20, and the fuel tank inner end part of the outer pipe part 31 ( It has an inner side pipe part 32 (also called the "sticking part of a flap case") which is fitted so that the lower end part of FIG. 2 may be fitted.

In this embodiment, the housing part {33 (also called a mounting part) which is integral with the large flange 23 which covers the small flange 21 is two types of resin materials from which the property differs with respect to the outer side pipe part 31. It is formed integrally by molding two colors. More specifically, the outer tube part 31 including the small flange 21 is formed of polyamide, and the housing part 33 including the large flange 23 is formed of polyethylene, and both are integrated.

A reinforcing rib 60, which is a feature of the present invention, is formed on the inner side of the inner tube portion 32 at an approximately central position in the longitudinal direction of the outer region of the fuel tank with respect to the flange portion 20. Specifically, as shown in FIGS. 2 and 3, the reinforcing rib 60 of the present embodiment includes six radiation portions 61 extending radially around a central axis of the inner tube portion 32 and an inner side. The inner end face of the pipe part 32 has the annular part 62 of substantially concentric shape. As shown in FIG. 2, each of the six radiation portions 61 of the reinforcing rib 60 is a portion farther from the central axis of the inner tube portion 32 than the portion closer to the central axis of the inner tube portion 32. The height of the s is up to about twice as high as the height increases toward the end (the width is the same, as shown in FIG. 3).

In this embodiment, all of the housing part 33, the outer side pipe part 31, the inner side pipe part 32, and the reinforcement rib 60 is made of resin. Specifically, the housing portion 33 is formed of a resin similar to the fuel tank, for example, a detailed resin of polyolefin-based resin such as polyethylene (PE) to facilitate welding to the fuel tank. On the other hand, the inner tube portion 32 and the reinforcing rib 60 are high in strength and excellent in fuel resistance, such as polyoxymethylene (POM), polyamide (PA), and polybutylene tere. Phthalate (PBT) or the like.

Moreover, in this embodiment, the valve apparatus 70 is provided in the inner side of the inner side pipe part 32 of the inner side area | region of a fuel tank with respect to the flange part 20. As shown in FIG. The valve device 70 of this embodiment is a well-known flap valve device, and its detailed description is omitted.

Next, the operation of the fuel tank pipe coupling 10 of the present embodiment as described above will be described.

First, the inner tube portion 32 having the reinforcing rib 60 and the valve device 70 is fitted with respect to the outer tube portion 31 as shown in FIG. 2. In the present embodiment, as described above, the outer tube portion 31 and the housing portion 33 are previously formed integrally by two-color molding, and the large flange 23 and the outer tube portion 31 of the housing portion 33 are formed. Small flange 21 forms flange portion 20. The flange portion 20 is mounted on the circumferential edge of the opening provided on the wall surface of the fuel tank, and the housing portion 33 is welded to the wall surface of the fuel tank. Thus, the pipe coupling 10 for fuel tanks of this embodiment can be easily attached to a fuel tank, without requiring a special process like thermal caulking of a metal member.

In the fuel tank pipe coupling 10 of the present embodiment mounted on the fuel tank as described above, the reinforcing rib 60 is formed inside the inner tube portion 32 so that the reinforcing collar made of metal is formed. Sufficient strength can be realized in the connecting pipe portion 30 without using it. In particular, in this embodiment, although the reinforcing rib 60 is made of resin, sufficient strength is realized in the connecting pipe portion 30, so that the cost is compared with the conventional fuel tank pipe coupling using a metal reinforcing collar. It is very advantageous in terms of.

In addition, the reinforcing rib 60 of this embodiment has an annular shape concentric with the radiation section 61 extending radially about the center axis of the connection pipe part 30, and the inner end surface of the connection pipe part 30. As shown in FIG. Since it is provided to have the upper part 62, the arrangement balance of the reinforcing rib 60 is good and it is suitable at the point of reinforcement strength. In addition, there is an advantage that the flow path resistance in the connection pipe portion 30 is low, for example, that the pressure loss during fuel supply is small. In addition, there is an advantage that the anti-siphon function can be achieved.

In addition, the annular portion 62 of the rib 60 for reinforcement of the present embodiment has a height higher than that near the central axis of the connecting pipe portion 30 from the central axis of the connecting pipe portion 30. . Also by this, the arrangement balance of the reinforcing rib 60 becomes good and it becomes very suitable from the point of reinforcement strength.

As described above, according to the present embodiment, the reinforcing rib 60 is formed inside the inner tube portion 32 so that it is sufficient in the connecting tube portion 30 without using a metal reinforcing collar. Strength can be realized. In particular, in this embodiment, since the reinforcing rib 60 realizes sufficient strength in the connecting pipe part 30 even though the reinforcing rib 60 is made of resin, it is compared with a conventional fuel tank pipe coupling using a reinforcing collar made of metal. It is very advantageous in terms of cost.

Moreover, according to this embodiment, the connection pipe part 30 has the outer pipe part 31 which is integral with the flange part 20, and the inner pipe part 32 fitted with respect to the outer pipe part 31, On the other hand, when attaching the outer tube part 31 integrated with the flange part 20, the inner tube part 32 does not directly participate. For this reason, when attaching the fuel tank pipe coupling 10 to a fuel tank, the concern that it damages the inner side pipe part 32 which has many parts points and is easy to become expensive is remarkably alleviated.

In the above embodiment, the reinforcing rib 60 extends radially about the center axis of the connection pipe portion 30, and an annular portion substantially concentric with the inner end surface of the connection pipe portion 30 ( 62), it is not limited to such a form at least at the time of the present application. For example, as shown in FIG. 4, the pipe coupling 10 for fuel tanks in which the reinforcing rib 60 'consists only of the radiation part 61' extended radially about the center axis of the connection pipe part 30 is shown. ') Is also included in the scope of the present invention. However, the reinforcing rib 60 'shown in FIG. 4 is inferior in that a flow path resistance is large compared with the reinforcing rib 60 shown in FIG.

10, 10 '-Pipe coupling for fuel tank
20-flange
21-small flange
23-large flange
30-connector
31-outer tube
32-inner tube part (stick part of flap case)
33-housing part (mounting part)
60, 60 '-Reinforcement rib
61, 61 '-Radiation Department
62-annular part
70-valve unit
100-pipe couplings for conventional fuel tanks
120-flange
130-connector
160-reinforcing collars of metal

Claims (10)

A flange portion which abuts against a circumferential edge of an opening provided on a wall of the fuel tank,
A connection pipe part installed to protrude out of the fuel tank from the flange part,
And a reinforcing rib is formed inside the connection pipe portion.
The method according to claim 1,
The reinforcing rib is a fuel tank pipe coupling, characterized in that the resin.
The method according to claim 2,
The reinforcing ribs and the radiation portion extending in the radial image about the central axis of the connection pipe portion;
And a concentric annular portion with an inner end face of the connecting pipe portion.
The method according to claim 2,
And said reinforcing rib has a radiation portion extending radially about a central axis of said connection pipe portion.
The method of claim 3,
The reinforcing rib is a pipe coupling for a fuel tank, characterized in that the height of the portion away from the center axis of the connection pipe portion is higher than the portion closer to the center axis of the connection pipe portion.
The method of claim 4,
The reinforcing rib is a pipe coupling for a fuel tank, characterized in that the height of the portion away from the center axis of the connection pipe portion is higher than the portion closer to the center axis of the connection pipe portion.
The method according to claim 1,
The connecting pipe part is a fuel tank pipe coupling, characterized in that protruding from the flange portion to the inside of the fuel tank.
The method of claim 7,
And the reinforcing rib is provided inside the connection pipe portion in the outer region of the fuel tank with respect to the flange portion.
The method of claim 7,
A valve coupling device for a fuel tank, characterized in that a valve device is provided inside the connecting pipe portion in the inner region of the fuel tank with respect to the flange portion.
The method according to any one of claims 1 to 9,
The connecting pipe portion has an outer tube portion integral with the flange portion, and an inner tube portion coupled to the outer tube portion,
The reinforcing rib is installed in the inner pipe portion of the fuel tank pipe coupling, characterized in that.
KR20130120667A 2012-10-16 2013-10-10 Pipe coupling for fuel tank KR20140048809A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2012-229129 2012-10-16
JP2012229129A JP6054131B2 (en) 2012-10-16 2012-10-16 Pipe joint for fuel tank

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020150118024A Division KR101611800B1 (en) 2012-10-16 2015-08-21 Pipe coupling for fuel tank

Publications (1)

Publication Number Publication Date
KR20140048809A true KR20140048809A (en) 2014-04-24

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Family Applications (2)

Application Number Title Priority Date Filing Date
KR20130120667A KR20140048809A (en) 2012-10-16 2013-10-10 Pipe coupling for fuel tank
KR1020150118024A KR101611800B1 (en) 2012-10-16 2015-08-21 Pipe coupling for fuel tank

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020150118024A KR101611800B1 (en) 2012-10-16 2015-08-21 Pipe coupling for fuel tank

Country Status (3)

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JP (1) JP6054131B2 (en)
KR (2) KR20140048809A (en)
WO (1) WO2014061668A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163395U (en) * 1986-04-02 1987-10-17
JP3045659B2 (en) * 1995-10-25 2000-05-29 ブリヂストンスポーツ株式会社 Golf club shaft and method of manufacturing the same
JP3634631B2 (en) * 1997-07-14 2005-03-30 株式会社パイオラックス Fuel backflow prevention valve
JP4253620B2 (en) * 2003-09-30 2009-04-15 株式会社パイオラックス Resin fuel tank mounting valve
KR100764497B1 (en) * 2006-08-14 2007-10-09 현대자동차주식회사 Upper plate of fuel pump module for vehicle
JP4810391B2 (en) * 2006-10-12 2011-11-09 トヨタ自動車株式会社 Outside air intake structure
JP5570320B2 (en) * 2010-06-29 2014-08-13 株式会社ニフコ Fuel tank piping structure
JP5581191B2 (en) * 2010-12-02 2014-08-27 株式会社ニフコ Oiling nozzle guide device

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Publication number Publication date
JP2014080105A (en) 2014-05-08
WO2014061668A1 (en) 2014-04-24
KR20150102910A (en) 2015-09-09
JP6054131B2 (en) 2016-12-27
KR101611800B1 (en) 2016-04-11

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