JPH07145761A - Mounting device for fuel pump - Google Patents
Mounting device for fuel pumpInfo
- Publication number
- JPH07145761A JPH07145761A JP29342793A JP29342793A JPH07145761A JP H07145761 A JPH07145761 A JP H07145761A JP 29342793 A JP29342793 A JP 29342793A JP 29342793 A JP29342793 A JP 29342793A JP H07145761 A JPH07145761 A JP H07145761A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel pump
- seal
- pump
- discharge port
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、燃料タンク内に設けら
れた燃料ポンプの取付装置に関するものであり、特には
燃料ポンプの燃料吐出口部分のシール構造に関する。そ
して、その用途は例えば自動車の燃料ポンプである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel pump mounting device provided in a fuel tank, and more particularly to a seal structure for a fuel discharge port of a fuel pump. The application is, for example, a fuel pump for automobiles.
【０００２】[0002]
【従来の技術】以下、従来技術について図４の一部断面
図をもとに述べる。燃料タンク１には、その開口部を覆
うカバーとなるブラケットフランジ２が図示を省略した
ビスで取り付けられている。燃料タンク１内には、ウエ
スコ式ポンプあるいは再生ポンプ等の電動燃料ポンプ３
がほぼ垂直に設置されている。前記ブラケットフランジ
２には、金具よりなる支持部材５が一体化されている。
支持部材５は、燃料ポンプ３の下端を振動を吸収するた
めのゴムブッシュ４を介して支持する。燃料ポンプ３の
本体部一端１１からは筒状の燃料吐出口６が突出してい
る。燃料吐出口６にはその吐出口を所定間隙Ｇを介して
包囲する筒状部材７が設けられている。筒状部材７には
パイプ状部材８の一端が接続され、そのパイプ状部材８
の図示せぬ他端が燃料消費部材となるエンジン２０に接
続されている。2. Description of the Related Art The prior art will be described below with reference to the partial sectional view of FIG. A bracket flange 2 serving as a cover for covering the opening is attached to the fuel tank 1 with screws (not shown). In the fuel tank 1, an electric fuel pump 3 such as a Wesco type pump or a regeneration pump is provided.
Are installed almost vertically. A support member 5 made of a metal fitting is integrated with the bracket flange 2.
The support member 5 supports the lower end of the fuel pump 3 via a rubber bush 4 for absorbing vibration. A tubular fuel discharge port 6 projects from one end 11 of the main body of the fuel pump 3. The fuel discharge port 6 is provided with a cylindrical member 7 that surrounds the fuel discharge port via a predetermined gap G. One end of a pipe-shaped member 8 is connected to the tubular member 7, and the pipe-shaped member 8
The other end (not shown) is connected to the engine 20 serving as a fuel consuming member.
【０００３】前記燃料吐出口６の部分が図５に拡大断面
図で示されている。筒状部材７と燃料吐出口６との間に
存在する所定間隙Ｇ中にはゴム製Ｏリング９が圧入され
ている。Ｏリング９と燃料ポンプ３の本体部一端１１と
の間には樹脂より成るリング状の間隙保持部材１０が設
けられている。なお筒状部材７の上端部には小径筒部１
０ａが形成されており、その小径筒部１０ａが前記パイ
プ状部材８の接続前において前記ブラケットフランジ２
の取付孔２ａに嵌入されている。A portion of the fuel discharge port 6 is shown in an enlarged sectional view in FIG. A rubber O-ring 9 is press-fitted into a predetermined gap G existing between the tubular member 7 and the fuel discharge port 6. A ring-shaped gap holding member 10 made of resin is provided between the O-ring 9 and one end 11 of the main body of the fuel pump 3. At the upper end of the tubular member 7, the small diameter tubular portion 1
0a is formed, and the small-diameter cylindrical portion 10a is connected to the bracket flange 2 before the pipe-shaped member 8 is connected.
Is fitted into the mounting hole 2a.
【０００４】前記燃料ポンプ３の取付装置において、燃
料ポンプ３の燃料吐出口６から吐出された燃料は、筒状
部材７とパイプ状部材８とを介してエンジン２０に供給
される。そして燃料吐出口６と筒状部材７との間のシー
ルは、ゴム製のＯリング９が確保している。ここでＯリ
ング９は、筒状部材７と燃料吐出口６との所定間隙Ｇに
圧入され、その接触圧力でシール性を発揮する。間隙保
持部材１０は、燃料吐出口６とＯリング９とを筒状部材
７の内周面に挿入する際のＯリング９の過度な移動を防
止し、また燃料ポンプ３作動中は燃料吐出口６から吐出
される燃料の圧力によってＯリング９が下方へずり落ち
るのを阻止する。なお、このような燃料ポンプの取付装
置は、例えば特公平３−２３７４８号公報に開示されて
いる。In the mounting device of the fuel pump 3, the fuel discharged from the fuel discharge port 6 of the fuel pump 3 is supplied to the engine 20 through the tubular member 7 and the pipe-shaped member 8. A rubber O-ring 9 secures the seal between the fuel discharge port 6 and the tubular member 7. Here, the O-ring 9 is press-fitted into a predetermined gap G between the tubular member 7 and the fuel discharge port 6, and exhibits sealing performance by the contact pressure. The gap holding member 10 prevents excessive movement of the O-ring 9 when the fuel discharge port 6 and the O-ring 9 are inserted into the inner peripheral surface of the tubular member 7, and also during operation of the fuel pump 3, the fuel discharge port. The O-ring 9 is prevented from sliding down by the pressure of the fuel discharged from 6. An attachment device for such a fuel pump is disclosed in, for example, Japanese Patent Publication No. 3-23748.
【０００５】[0005]
【発明が解決しようとする課題】前記従来技術による
と、間隙保持部材１０が樹脂のために燃料の温度変化に
より膨潤・収縮を起こす。このうち、特に間隙保持部材
１０の半径方向の膨潤・収縮により、間隙保持部材１０
がその半径方向にがたついた場合には、間隙保持部材１
０がポンプ振動で振動し異音が発生する。また間隙保持
部材１０が筒状部材７に接触した場合には、ポンプ振動
が間隙保持部材１０、筒状部材７を介して燃料タンク１
に伝わり騒音が悪化する。また、Ｏリング９と間隙保持
部材１０とが別部品であったので部品点数の増加を招く
ことにもなる。According to the above-mentioned prior art, the gap holding member 10 is made of resin, so that the gap holding member 10 swells and contracts due to the temperature change of the fuel. Of these, the gap maintaining member 10 is swelled and shrunk in the radial direction of the gap maintaining member 10 in particular.
Is rattled in the radial direction, the gap holding member 1
0 vibrates due to pump vibration, and abnormal noise is generated. When the gap holding member 10 contacts the tubular member 7, pump vibration is generated via the gap holding member 10 and the tubular member 7.
And the noise gets worse. In addition, since the O-ring 9 and the gap maintaining member 10 are separate parts, the number of parts also increases.
【０００６】そこで本発明は、前記した問題点を解決す
るためになされたものであり、その目的は騒音を低減し
また部品点数を削減することのできる燃料ポンプの取付
装置を提供することである。Therefore, the present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a mounting device for a fuel pump which can reduce noise and the number of parts. .
【０００７】[0007]
【課題を解決するための手段】前記課題を解決するため
の本発明は、燃料タンク、前記燃料タンクの内部にほぼ
垂直に設けられた燃料ポンプ、前記燃料ポンプを前記燃
料タンクの内部に支持する支持部材、前記燃料ポンプの
本体部一端から突出した筒状の燃料吐出口、前記燃料タ
ンクの内部と外部の燃料消費部材とを連通したパイプ状
部材、前記パイプ状部材と一体化され、前記燃料吐出口
の側面に存在する所定間隙を介して、前記燃料吐出口を
包囲する筒状部材、前記燃料吐出口の側面に存在する前
記所定間隙の中に設けられる弾性ゴム材からなるリング
状シール部材を有する燃料ポンプの取付装置であって、
前記シール部材にはその主部をなすシール部と前記燃料
ポンプの本体部一端との間に設けられる間隙保持部を一
体形成したものである。According to the present invention for solving the above problems, a fuel tank, a fuel pump provided substantially vertically inside the fuel tank, and the fuel pump supported inside the fuel tank. A support member, a cylindrical fuel discharge port that projects from one end of the main body of the fuel pump, a pipe-shaped member that communicates the inside and outside of the fuel tank with a fuel consuming member, and the pipe-shaped member that is integrated with the fuel. A tubular member surrounding the fuel discharge port via a predetermined gap existing on the side face of the discharge port, and a ring-shaped seal member made of an elastic rubber material provided in the predetermined gap existing on the side face of the fuel discharge port. A mounting device for a fuel pump having:
The seal member is integrally formed with a gap holding portion provided between the seal portion which is the main portion of the seal member and one end of the main body portion of the fuel pump.
【０００８】[0008]
【作用】前記手段によれば、弾性ゴム材からなるシール
部材にシール部と間隙保持部とを一体形成したので、燃
料吐出口と筒状部材との間のシールはシール部が確保
し、また燃料吐出口を筒状部材の内周面に挿入する際の
シール部の過度な移動および燃料ポンプ作動中の燃料圧
力によるシール部のずり落ちが間隙保持部によって防止
される。また、前記シール部と間隙保持部を有するシー
ル部材が弾性ゴム材からなるので、そのシール部材がポ
ンプ振動を減衰させかつそのシール部材が騒音発生の原
因とならない。また、燃料ポンプの燃料吐出口部分のシ
ールのために必要な部品がシール部材の１点で済む。According to the above means, since the seal portion and the gap holding portion are integrally formed on the seal member made of the elastic rubber material, the seal portion ensures the seal between the fuel discharge port and the tubular member, and The gap holding portion prevents the seal portion from excessively moving when the fuel discharge port is inserted into the inner peripheral surface of the tubular member and slipping off of the seal portion due to fuel pressure during operation of the fuel pump. Further, since the seal member having the seal portion and the gap holding portion is made of the elastic rubber material, the seal member damps the pump vibration and the seal member does not cause noise. Further, only one part of the seal member is required to seal the fuel discharge port of the fuel pump.
【０００９】[0009]
【実施例】本発明の一実施例を図面にしたがって説明す
る。図１に実施例が一部断面図で示され、図２に要部が
断面図で示され、図３に要部が一部破断した分解斜視図
である。なお本例は、従来例の一部を変更したものであ
るからその変更部分について詳述し、従来例と同一もし
くは均等構成と考えられる部分には同一符号を付して重
複する説明は省略する。図１に示されるように、本例の
燃料ポンプ３の取付装置では、前記従来例（図４参照）
のＯリング９及び間隙保持部材１０に代えて、１部品の
弾性ゴム材からなるリング状シール部材９０が使用され
ている。このシール部材９０は、図２および図３に示さ
れるように、燃料吐出口６の側面に存在する所定間隙Ｇ
の中に設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing an essential part thereof, and FIG. Since this example is a modification of a part of the conventional example, the modified part will be described in detail, and the parts which are considered to be the same as or equivalent to those of the conventional example will be denoted by the same reference numerals and duplicate description will be omitted. . As shown in FIG. 1, in the attachment device for the fuel pump 3 of this example, the conventional example (see FIG. 4) is used.
In place of the O-ring 9 and the gap maintaining member 10, a ring-shaped sealing member 90 made of a one-piece elastic rubber material is used. As shown in FIGS. 2 and 3, the sealing member 90 has a predetermined gap G existing on the side surface of the fuel discharge port 6.
It is provided inside.
【００１０】前記シール部材９０には、その主部をなす
シール部９１と前記燃料ポンプ３の本体部一端１１との
間に設けられる間隙保持部９２を一体形成してなる。さ
らにシール部材９０には、前記シール部９１及び間隙保
持部９２に加えて、間隙保持部９２の下端部外周に張り
出すフランジ部９３と、シール部９１上に延出する延出
筒部９４と、その延出筒部９４の上端内周に張り出す絞
り口部９５が一体形成されている。前記フランジ部９３
は、筒状部材７と本体部一端１１との間に挟着状に介在
されている。また前記絞り口部９５は、燃料吐出口６の
口端面に密着している。The seal member 90 is integrally formed with a gap holding portion 92 provided between a seal portion 91 which is a main portion of the seal member 90 and one end 11 of the main body portion of the fuel pump 3. Further, in addition to the seal portion 91 and the gap holding portion 92, the seal member 90 further includes a flange portion 93 that projects to the outer periphery of the lower end portion of the gap holding portion 92, and an extending cylinder portion 94 that extends above the seal portion 91. A throttle port portion 95 that overhangs on the inner circumference of the upper end of the extending cylinder portion 94 is integrally formed. The flange portion 93
Are sandwiched between the tubular member 7 and the one end 11 of the main body. Further, the throttle port portion 95 is in close contact with the mouth end surface of the fuel discharge port 6.
【００１１】前記燃料ポンプ３の取付装置によれば、弾
性ゴム材からなるシール部材９０にシール部９１と間隙
保持部９２とを一体形成したので、燃料吐出口６と筒状
部材７との間のシールはシール部９１が確保し、また燃
料吐出口６を筒状部材７の内周面に挿入する際のシール
部９１の過度な移動および燃料ポンプ作動中の燃料圧力
によるシール部９１のずり落ちが間隙保持部９２によっ
て防止される。従って、前記シール部９１と間隙保持部
９２を有しかつ弾性ゴム材からなるシール部材９０がポ
ンプ振動を減衰させかつそのシール部材９０が騒音発生
の原因とならないので、ポンプ振動による騒音を低減で
きる。また、燃料ポンプ３の燃料吐出口部分のシールの
ために必要な部品がシール部材９０だけの１点で済むの
で、従来に比べて部品点数を削減できる。According to the mounting device of the fuel pump 3, the seal member 91 made of the elastic rubber material is integrally formed with the seal portion 91 and the gap holding portion 92, so that the space between the fuel discharge port 6 and the tubular member 7 is formed. Is secured by the seal portion 91, and the seal portion 91 is displaced due to excessive movement of the seal portion 91 when the fuel discharge port 6 is inserted into the inner peripheral surface of the tubular member 7 and fuel pressure during operation of the fuel pump. The drop is prevented by the gap holding portion 92. Therefore, the seal member 90 having the seal portion 91 and the gap holding portion 92 and made of an elastic rubber material attenuates the pump vibration and the seal member 90 does not cause noise generation, so that the noise due to the pump vibration can be reduced. . Moreover, since only one part, the sealing member 90, is required for sealing the fuel discharge port of the fuel pump 3, the number of parts can be reduced as compared with the conventional case.
【００１２】さらに本例のシール部材９０は、フランジ
部９３を一体に備えたことにより、燃料ポンプ３の取り
付け時の燃料ポンプ３のこじりによりシール部９１が図
示上方へずれてポンプ吐出口６から外れることを防止で
きる。またシール部材９０に延出筒部９４を介して絞り
口部９５を形成したことにより、燃料吐出口６の口端面
に対する高いシール性を得ている。Further, since the seal member 90 of this embodiment is integrally provided with the flange portion 93, the seal portion 91 is displaced upward in the drawing due to the twisting of the fuel pump 3 when the fuel pump 3 is attached, and the seal portion 91 is displaced from the pump discharge port 6. It can be prevented from coming off. Further, since the throttle port portion 95 is formed in the seal member 90 via the extending tubular portion 94, a high sealing property with respect to the mouth end surface of the fuel discharge port 6 is obtained.
【００１３】[0013]
【発明の効果】本発明によれば、シール部及び間隙保持
部を一体形成したシール部材によりポンプ振動による騒
音を低減することができ、またそのシール部材にシール
部と間隙保持部とを一体形成したことにより従来に比べ
て部品点数を削減することができる。According to the present invention, noise due to pump vibration can be reduced by the seal member integrally forming the seal portion and the gap holding portion, and the seal portion and the gap holding portion are integrally formed on the seal member. As a result, the number of parts can be reduced compared to the conventional case.
【図１】実施例を示す一部断面図である。FIG. 1 is a partial cross-sectional view showing an example.
【図２】図１の要部を示す拡大断面図である。FIG. 2 is an enlarged cross-sectional view showing a main part of FIG.
【図３】図１の要部を一部破断して示す分解斜視図であ
る。FIG. 3 is an exploded perspective view showing a main portion of FIG. 1 partially broken away.
【図４】従来例を示す一部断面図である。FIG. 4 is a partial cross-sectional view showing a conventional example.
【図５】図４の要部を示す拡大断面図である。5 is an enlarged cross-sectional view showing a main part of FIG.
１ 燃料タンク ３ 燃料ポンプ ５ 支持部材 ６ 燃料吐出口 ７ 筒状部材 ８ パイプ状部材 ９０ シール部材 ９１ シール部 ９２ 間隙保持部 Ｇ 所定間隙 1 Fuel Tank 3 Fuel Pump 5 Support Member 6 Fuel Discharge Port 7 Cylindrical Member 8 Pipe Member 90 Seal Member 91 Seal Part 92 Gap Holding Part G Predetermined Gap
Claims (1)
ぼ垂直に設けられた燃料ポンプ、前記燃料ポンプを前記
燃料タンクの内部に支持する支持部材、前記燃料ポンプ
の本体部一端から突出した筒状の燃料吐出口、前記燃料
タンクの内部と外部の燃料消費部材とを連通したパイプ
状部材、前記パイプ状部材と一体化され、前記燃料吐出
口の側面に存在する所定間隙を介して、前記燃料吐出口
を包囲する筒状部材、前記燃料吐出口の側面に存在する
前記所定間隙の中に設けられる弾性ゴム材からなるリン
グ状シール部材を有する燃料ポンプの取付装置であっ
て、前記シール部材にはその主部をなすシール部と前記
燃料ポンプの本体部一端との間に設けられる間隙保持部
を一体形成した燃料ポンプの取付装置。1. A fuel tank, a fuel pump provided substantially vertically inside the fuel tank, a support member for supporting the fuel pump inside the fuel tank, and a tubular shape protruding from one end of a main body portion of the fuel pump. Fuel discharge port, a pipe-shaped member that communicates the inside and outside of the fuel tank with a fuel consuming member, and the fuel through a predetermined gap that is integrated with the pipe-shaped member and exists on the side surface of the fuel discharge port. A fuel pump mounting device comprising: a tubular member surrounding a discharge port; and a ring-shaped seal member made of an elastic rubber material provided in the predetermined gap existing on the side surface of the fuel discharge port, wherein the seal member includes: Is a fuel pump mounting device in which a gap holding portion provided between a seal portion forming a main portion thereof and one end of a main body portion of the fuel pump is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29342793A JPH07145761A (en) | 1993-11-24 | 1993-11-24 | Mounting device for fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29342793A JPH07145761A (en) | 1993-11-24 | 1993-11-24 | Mounting device for fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07145761A true JPH07145761A (en) | 1995-06-06 |
Family
ID=17794624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29342793A Pending JPH07145761A (en) | 1993-11-24 | 1993-11-24 | Mounting device for fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07145761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10250097A (en) * | 1997-03-12 | 1998-09-22 | Seiko Epson Corp | Ink supply connector |
| JP2007224881A (en) * | 2006-02-27 | 2007-09-06 | Keihin Corp | Fuel supply device for motorcycle |
| JP2013142358A (en) * | 2012-01-12 | 2013-07-22 | Aisan Industry Co Ltd | Fuel pump holding device |
-
1993
- 1993-11-24 JP JP29342793A patent/JPH07145761A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10250097A (en) * | 1997-03-12 | 1998-09-22 | Seiko Epson Corp | Ink supply connector |
| JP2007224881A (en) * | 2006-02-27 | 2007-09-06 | Keihin Corp | Fuel supply device for motorcycle |
| JP2013142358A (en) * | 2012-01-12 | 2013-07-22 | Aisan Industry Co Ltd | Fuel pump holding device |
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