JP2010000976A - Structure of inserting section of oil supply nozzle - Google Patents

Structure of inserting section of oil supply nozzle Download PDF

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Publication number
JP2010000976A
JP2010000976A JP2008163240A JP2008163240A JP2010000976A JP 2010000976 A JP2010000976 A JP 2010000976A JP 2008163240 A JP2008163240 A JP 2008163240A JP 2008163240 A JP2008163240 A JP 2008163240A JP 2010000976 A JP2010000976 A JP 2010000976A
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oil supply
nozzle insertion
partition wall
supply nozzle
fuel
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JP5266906B2 (en
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Masashi Kamei
正史 亀井
Naoaki Tanimura
直明 谷村
Tooru Ishihama
徹 石浜
Minoru Chino
実 千野
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain structure of an inserting section of an oil supply nozzle capable of suppressing introduction of fuel vapor into a filler tube from a vapor tube. <P>SOLUTION: In a tube section C for inserting the oil supply nozzle 1, a partition wall 6 covering the filler tube 3 side while having a nozzle insertion port 7 for inserting the oil supply nozzle 1 inserted in the tube section C is arranged. A vapor passage C2 directed to the opening end 2a of the tube section C (a tube 2) from a vent tube 4 is formed in a condition partitioned from the inside of the filler tube 3 by the partition wall 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、給油ノズル差込部構造に関する。   The present invention relates to an oil supply nozzle insertion portion structure.

従来の給油ノズル差込部構造として、カップ状リテーナの底壁部に形成したノズル挿入口に給油ノズルを挿通するように構成され、その底壁部より奥側で、燃料を供給するフィラーチューブと、燃料ベーパを排出するベントチューブとが分岐されている構成が知られている（特許文献１参照）。
特開２００３−８０９５９号公報 As a conventional oil supply nozzle insertion part structure, it is configured to insert the oil supply nozzle into a nozzle insertion port formed in the bottom wall part of the cup-shaped retainer, and a filler tube for supplying fuel on the back side from the bottom wall part; A configuration in which a vent tube for discharging fuel vapor is branched is known (see Patent Document 1).
JP 2003-80959 A

しかしながら、上記従来構造では、底壁部より奥側でフィラーチューブとベントチューブとが連通していて、当該奥側で給油ノズルから燃料が排出されるため、給油ノズルから燃料が排出される際に生じる負圧によって、ベントチューブ内の燃料ベーパがフィラーチューブ側に導入され、ひいては燃料タンク内まで導入されてしまう虞があった。   However, in the above conventional structure, the filler tube and the vent tube communicate with each other on the back side from the bottom wall, and the fuel is discharged from the fuel nozzle on the back side. Therefore, when the fuel is discharged from the fuel nozzle. Due to the negative pressure generated, the fuel vapor in the vent tube may be introduced to the filler tube side and eventually into the fuel tank.

そこで、本発明は、燃料ベーパがベーパチューブ側からフィラーチューブ側に導入されるのを抑制することが可能な給油ノズル差込部構造を得ることを目的とする。   Then, this invention aims at obtaining the fuel supply nozzle insertion part structure which can suppress that a fuel vapor is introduce | transduced into the filler tube side from the vapor tube side.

本発明は、給油ノズルを差し込む筒部内に、フィラーチューブ側を覆うとともに筒部に差し込まれた給油ノズルを挿通するノズル挿通口が形成された隔壁を設け、ベントチューブから筒部の開口端に向かうベーパ通路が、隔壁によってフィラーチューブ内と区画された状態で形成されるようにしたことを最も主要な特徴とする。   According to the present invention, a partition wall in which a nozzle insertion port for covering the filler tube side and through which the oil supply nozzle is inserted is formed in the cylinder portion into which the oil supply nozzle is inserted, and is directed from the vent tube to the opening end of the cylinder portion. The most important feature is that the vapor passage is formed in a state of being partitioned from the filler tube by the partition wall.

本発明によれば、フィラーチューブ内とベントチューブ内を隔壁で区画することができるため、ベントチューブからフィラーチューブに燃料ベーパが導入されるのを抑制することができる。   According to the present invention, since the inside of the filler tube and the inside of the vent tube can be partitioned by the partition walls, the introduction of fuel vapor from the vent tube to the filler tube can be suppressed.

以下、本発明の好適な実施形態について図面を参照しながら詳細に説明する。なお、以下の複数の実施形態には、同様の構成要素が含まれている。よって、それら同様の構成要素については共通の符号を付与するとともに、重複する説明を省略する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. Note that similar components are included in the following embodiments. Therefore, the same constituent elements are given common reference numerals, and redundant description is omitted.

（第１実施形態）図１は、本実施形態にかかる給油ノズル差込部構造の内部構造を示す断面図、図２は、給油ノズル差込部構造の筒部を透視して隔壁を示す模式的な斜視図、図３は、図１に給油ノズルを差し込んだ状態を示す図である。   (First Embodiment) FIG. 1 is a cross-sectional view showing the internal structure of an oil supply nozzle insertion portion structure according to this embodiment, and FIG. 2 is a schematic view showing a partition wall through a cylindrical portion of the oil supply nozzle insertion portion structure. FIG. 3 is a schematic perspective view and FIG. 3 is a view showing a state in which the fueling nozzle is inserted into FIG.

本実施形態にかかる給油ノズル差込部構造は、図１に示すように、給油ノズル１（図３参照）を差し込む給油口Ｏを形成する筒体２と、この筒体２と図示省略した燃料タンクとを接続して給油ノズル１から排出された燃料Ｆの燃料タンクへの供給路となるフィラーチューブ３と、燃料ベーパＶを排出するベントチューブ４と、を備えている。   As shown in FIG. 1, the fuel supply nozzle insertion portion structure according to the present embodiment includes a cylindrical body 2 that forms a fuel supply port O into which the fuel supply nozzle 1 (see FIG. 3) is inserted, and the cylindrical body 2 and the fuel that is not shown A filler tube 3 that is connected to the tank and serves as a supply path for the fuel F discharged from the fuel supply nozzle 1 to the fuel tank, and a vent tube 4 that discharges the fuel vapor V are provided.

筒体２は、その開口端２ａ側の外周に設けた略漏斗状の取付ブラケット５を介して、車体パネル（例えばフェンダパネル等、図示せず）に、その裏側から取り付けられている。また、筒体２の開口端２ａ側の内周には、フューエルキャップ（図示せず）を螺合するためのねじ部２ｂを設けてある。   The cylindrical body 2 is attached from the back side to a vehicle body panel (for example, a fender panel or the like, not shown) via a substantially funnel-shaped mounting bracket 5 provided on the outer periphery on the opening end 2a side. Further, a screw portion 2b for screwing a fuel cap (not shown) is provided on the inner periphery of the cylindrical body 2 on the opening end 2a side.

フィラーチューブ３は、本実施形態では筒体２の外周に固定されており、当該筒体２の軸方向に沿って伸びるパイプ状に形成されている。また、このフィラーチューブ３は、開口端２ａ側に、奥側の根元部３ｎより拡径された拡径部３ｓを有している。また、根元部３ｎと拡径部３ｓとの間にはラッパ状に拡開する接続部３ｃを設け、この接続部３ｃにおいて根元部３ｎから拡径部３ｓにかけてフィラーチューブ３の内径を漸増してある。本実施形態では、筒体２および拡径部３ｓが、本発明の筒部Ｃに相当する。   In this embodiment, the filler tube 3 is fixed to the outer periphery of the cylindrical body 2 and is formed in a pipe shape extending along the axial direction of the cylindrical body 2. Further, the filler tube 3 has a diameter-enlarged portion 3s that is larger in diameter than the base portion 3n on the back side on the opening end 2a side. A connecting portion 3c that expands in a trumpet shape is provided between the root portion 3n and the enlarged diameter portion 3s, and the inner diameter of the filler tube 3 is gradually increased from the root portion 3n to the enlarged diameter portion 3s at the connecting portion 3c. is there. In the present embodiment, the cylindrical body 2 and the enlarged diameter portion 3s correspond to the cylindrical portion C of the present invention.

ベントチューブ４は、フィラーチューブ３の拡径部３ｓの下方側の側面に接続されて拡径部３ｓの筒内に開口しており、当該開口部４ａから屈曲して斜め下方に向けて延設されている。   The vent tube 4 is connected to the lower side surface of the enlarged diameter portion 3s of the filler tube 3 and opens into the cylinder of the enlarged diameter portion 3s. The bent tube 4 is bent from the opening portion 4a and extends obliquely downward. Has been.

また、本実施形態では、筒体２および拡径部３ｓ（すなわち筒部Ｃ）の筒内に、給油ノズル１の差込方向奥側に向けて開放される略有底筒状の隔壁６を取り付けてある。この隔壁６は、奥側の開口端６ａの全周をフィラーチューブ３の接続部３ｃの側面に突き当てた状態で固定されており、筒体２の開口端２ａ側に対してフィラーチューブ３側を覆っている。   Moreover, in this embodiment, the substantially bottomed cylindrical partition wall 6 opened toward the back side in the insertion direction of the oil supply nozzle 1 is provided in the cylinder 2 and the expanded diameter part 3s (that is, the cylinder part C). It is attached. The partition wall 6 is fixed in a state where the entire circumference of the opening end 6a on the back side is abutted against the side surface of the connecting portion 3c of the filler tube 3, and the filler tube 3 side with respect to the opening end 2a side of the cylindrical body 2 Covering.

そして、この隔壁６には、開口端２ａ側に配置される底壁６ｃに、給油ノズル１を挿通するノズル挿通口７を形成してある。さらに、この底壁６ｃには、ノズル挿通口７とは別に、図３に示すように、ノズル挿通口７に給油ノズル１が挿通された状態においてもフィラーチューブ３内と筒部Ｃ内の開口端２ａ側とを連通する外気取入口９を形成してある。本実施形態では、外気取入口９は、ノズル挿通口７の上方に複数形成してある。   The partition wall 6 is formed with a nozzle insertion port 7 through which the oil supply nozzle 1 is inserted in a bottom wall 6c disposed on the opening end 2a side. Further, as shown in FIG. 3, in addition to the nozzle insertion port 7, the bottom wall 6 c has openings in the filler tube 3 and the cylinder portion C even when the oil supply nozzle 1 is inserted into the nozzle insertion port 7. An outside air intake port 9 that communicates with the end 2a side is formed. In the present embodiment, a plurality of outside air intakes 9 are formed above the nozzle insertion port 7.

また、本実施形態では、隔壁６の外径を筒体２および拡径部３ｓの内径より小さくし、側壁６ｂの周囲（すなわち側壁６ｂの外周面６ｄと筒部Ｃの内周面との間）に、略環状の隙間Ｓを形成してある。したがって、ベントチューブ４の開口部４ａから筒部Ｃの筒内に流入した燃料ベーパＶは、この隙間Ｓを通って筒体２の開口端２ａ側に流れることになる。すなわち、本実施形態では、隙間Ｓがベーパ通路Ｃ２となっている。   Further, in the present embodiment, the outer diameter of the partition wall 6 is made smaller than the inner diameters of the cylindrical body 2 and the enlarged diameter portion 3s, and the periphery of the side wall 6b (that is, between the outer peripheral surface 6d of the side wall 6b and the inner peripheral surface of the cylindrical portion C). ) Is formed with a substantially annular gap S. Therefore, the fuel vapor V that has flowed into the cylinder of the cylinder C from the opening 4 a of the vent tube 4 flows through the gap S toward the opening end 2 a of the cylinder 2. That is, in the present embodiment, the gap S is the vapor passage C2.

さらに、本実施形態では、側壁６ｂの外周面６ｄをベントチューブ４の開口部４ａに対向する位置で凹設して、筒体２の開口端２ａに向けて伸びる略一定幅ｗの凹溝８を形成してある。そして、ベントチューブ４の開口部４ａを凹溝８に対向して配置してある。したがって、ベントチューブ４の開口部４ａから排出された燃料ベーパＶは、隙間Ｓ内で、主として凹溝８を形成した部分を、当該凹溝８の延設方向に沿って、開口端２ａに向けて流れることになる。すなわち、この凹溝８はベーパ通路Ｃ２の一部をなしており、燃料ベーパＶの開口端２ａに向かう流れのガイドとして機能している。   Further, in this embodiment, the outer peripheral surface 6d of the side wall 6b is recessed at a position facing the opening 4a of the vent tube 4, and the groove 8 having a substantially constant width w extending toward the opening end 2a of the cylindrical body 2 is provided. Is formed. Then, the opening 4 a of the vent tube 4 is disposed so as to face the concave groove 8. Therefore, the fuel vapor V discharged from the opening 4a of the vent tube 4 has a portion in which the concave groove 8 is mainly formed in the gap S toward the opening end 2a along the extending direction of the concave groove 8. Will flow. That is, the concave groove 8 forms a part of the vapor passage C2 and functions as a flow guide toward the opening end 2a of the fuel vapor V.

また、本実施形態では、凹溝８の長手方向奥側（給油ノズル１の差込方向奥側）の、ベントチューブ４の開口部４ａと略対向する部分で、当該奥側から開口端２ａ側に向けて凹溝８の深さを徐々に深くして、ベーパ通路Ｃ２の屈曲部８ｂを形成している。すなわち、図１〜３に示すように、本実施形態では、ベントチューブ４から凹溝８にかけて燃料ベーパＶの流れが略９０°（ｄｅｇ）曲げられることになるが、このような屈曲部８ｂを設けることで、当該屈曲部８ｂの底面（凹溝８の底面）に沿ったスムーズな通流抵抗の少ない流れを得ることができる。なお、凹溝８の底面は略円弧状に形成してある。   Moreover, in this embodiment, it is a part substantially opposite to the opening part 4a of the vent tube 4 of the longitudinal direction back side (insertion direction of the oil supply nozzle 1) of the ditch | groove 8, and the opening end 2a side from the said back side The depth of the concave groove 8 is gradually increased toward the bottom to form the bent portion 8b of the vapor passage C2. That is, as shown in FIGS. 1 to 3, in this embodiment, the flow of the fuel vapor V is bent from the vent tube 4 to the concave groove 8 by approximately 90 ° (deg). By providing, a smooth flow with little flow resistance along the bottom surface of the bent portion 8b (the bottom surface of the groove 8) can be obtained. The bottom surface of the groove 8 is formed in a substantially arc shape.

また、図１〜図３に示すように、本実施形態では、外気取入口９をノズル挿通口７に対して凹溝８の反対側に設け、これにより、凹溝８を通過する燃料ベーパＶが、外気取入口９からフィラーチューブ３内に導入されにくくしている。   In addition, as shown in FIGS. 1 to 3, in this embodiment, the outside air inlet 9 is provided on the opposite side of the groove 8 with respect to the nozzle insertion port 7, whereby the fuel vapor V passing through the groove 8. However, it is difficult to be introduced into the filler tube 3 from the outside air inlet 9.

上記構成の給油ノズル差込部構造では、給油時には、図３に示すように、筒体２の開口端２ａ側から差込方向奥側に挿入された給油ノズル１は、隔壁６のノズル挿通口７を貫通し、その端部１ａは、隔壁６より奥側（開口端２ａの反対側）に配置されることになる。すなわち、燃料Ｆは、隔壁６で覆われた奥側でフィラーチューブ３内に注入されることになる。そして、本実施形態では、ベーパ通路Ｃ２となる隙間Ｓ（凹溝８）は、隔壁６の外側に形成されている。つまり、隔壁６によって、燃料Ｆの供給路Ｃ１とベーパ通路Ｃ２とが区画されている。   In the fuel nozzle insertion portion structure having the above-described configuration, when fuel is supplied, the fuel nozzle 1 inserted from the opening end 2a side of the cylindrical body 2 to the back side in the insertion direction is a nozzle insertion port of the partition wall 6, as shown in FIG. 7, and its end 1 a is disposed on the back side of the partition wall 6 (opposite the opening end 2 a). That is, the fuel F is injected into the filler tube 3 on the back side covered with the partition wall 6. In the present embodiment, the gap S (concave groove 8) that becomes the vapor passage C <b> 2 is formed outside the partition wall 6. That is, the partition wall 6 divides the fuel F supply passage C1 and the vapor passage C2.

以上、説明したように、本実施形態では、給油ノズル１を差し込む筒部Ｃ内に、フィラーチューブ３側を覆うとともに筒部Ｃに差し込まれた給油ノズル１を挿通するノズル挿通口７が形成された隔壁６を設け、ベントチューブ４から筒部Ｃ（筒体２）の開口端２ａに向かうベーパ通路Ｃ２が、当該隔壁６によってフィラーチューブ３内と区画された状態で形成されるようにした。よって、ベントチューブ４からフィラーチューブ３に燃料ベーパＶが導入されるのを抑制することができる。   As described above, in the present embodiment, the nozzle insertion port 7 that covers the filler tube 3 side and is inserted through the fuel nozzle 1 inserted into the cylinder C is formed in the cylinder C where the fuel nozzle 1 is inserted. A partition wall 6 is provided so that a vapor passage C2 from the vent tube 4 toward the opening end 2a of the cylinder portion C (tubular body 2) is formed in a state of being partitioned from the filler tube 3 by the partition wall 6. Therefore, introduction of the fuel vapor V from the vent tube 4 to the filler tube 3 can be suppressed.

また、本実施形態では、隔壁６を筒状に形成し、その側壁６ｂの筒外側の少なくとも一部にベーパ通路Ｃ２を形成した。このように隔壁６を筒状とすることで、その筒内側を給油ノズル１の挿通部分（ノズル挿通口７を含む）として利用することができる上、その筒外側にベーパ通路Ｃ２を形成することができる。したがって、本実施形態によれば、隔壁６によって燃料Ｆの供給路Ｃ１側と燃料ベーパＶのベーパ通路Ｃ２側とを区画する構成を、比較的簡素な構成として得ることができる。   In the present embodiment, the partition wall 6 is formed in a cylindrical shape, and the vapor passage C2 is formed in at least a part of the side wall 6b outside the cylinder. Thus, by making the partition wall 6 cylindrical, the inside of the cylinder can be used as an insertion portion (including the nozzle insertion port 7) of the oil supply nozzle 1, and the vapor passage C2 is formed outside the cylinder. Can do. Therefore, according to the present embodiment, the configuration in which the partition 6 separates the fuel F supply channel C1 side and the fuel vapor V vapor passage C2 side can be obtained as a relatively simple configuration.

また、本実施形態では、側壁６ｂの外周面６ｄに、筒部Ｃの開口端２ａ側に向けて延設されてベーパ通路Ｃ２の一部をなす凹溝８を設けた。かかる凹溝８により、比較的簡素な構成によって、燃料ベーパＶの流れを所定方向（例えばノズル挿通口７や外気取入口９に近付かない方向）に向かわせて、燃料ベーパＶがノズル挿通口７（と給油ノズル１との隙間）や外気取入口９等を介してフィラーチューブ３内に導入されにくくすることができる。   Further, in the present embodiment, the concave groove 8 extending toward the opening end 2a side of the cylindrical portion C and forming a part of the vapor passage C2 is provided on the outer peripheral surface 6d of the side wall 6b. The concave groove 8 causes the fuel vapor V to flow in a predetermined direction (for example, a direction not approaching the nozzle insertion port 7 and the outside air intake port 9) with a relatively simple configuration, so that the fuel vapor V is directed to the nozzle insertion port 7. (And the gap between the oil supply nozzle 1) and the outside air inlet 9 and the like can be made difficult to be introduced into the filler tube 3.

また、本実施形態では、凹溝８の深さを当該凹溝８の延設方向に沿って除変させてベーパ通路Ｃ２の屈曲部８ｂを形成した。よって、ベーパ通路Ｃ２の流れる方向を、よりスムーズにかつより通流抵抗の少ない状態で変化させ、燃料ベーパＶの排出効率を高めることができる。   Further, in the present embodiment, the depth of the concave groove 8 is changed along the extending direction of the concave groove 8 to form the bent portion 8b of the vapor passage C2. Therefore, the flow direction of the vapor passage C2 can be changed more smoothly and with less flow resistance, and the fuel vapor V discharge efficiency can be increased.

また、本実施形態では、隔壁６に、筒部Ｃ内の開口端２ａ側とフィラーチューブ３内とを連通する外気取入口９を形成した。よって、隔壁６の奥側で燃料Ｆを排出することによって生じる負圧が大きくなって燃料Ｆが注入されにくくなるのを抑制することができる。   In the present embodiment, the partition wall 6 is formed with the outside air inlet 9 that communicates the opening end 2 a side in the cylindrical portion C and the filler tube 3. Therefore, it can be suppressed that the negative pressure generated by discharging the fuel F at the back side of the partition wall 6 becomes large and the fuel F is hardly injected.

また、本実施形態では、外気取入口９を、ノズル挿通口７に対してベーパ通路Ｃ２（凹溝８）の反対側に形成した。このため、外気取入口９をベーパ通路Ｃ２から遠ざけて配置することができ、ベーパ通路Ｃ２から外気取入口９を介して燃料ベーパＶがフィラーチューブ３内ひいては燃料タンク内に導入されるのを抑制することができる。   In the present embodiment, the outside air inlet 9 is formed on the opposite side of the vapor passage C <b> 2 (concave groove 8) with respect to the nozzle insertion port 7. Therefore, the outside air inlet 9 can be disposed away from the vapor passage C2, and the fuel vapor V is prevented from being introduced into the filler tube 3 and thus into the fuel tank from the vapor passage C2 via the outside air inlet 9. can do.

また、本実施形態では、隔壁６を、給油ノズル１の差込方向奥側に向けて開放される有底筒状に形成し、その隔壁６の底壁６ｃに、ノズル挿通口７ならびに外気取入口９を形成した。よって、隔壁６の底壁６ｃを利用してノズル挿通口７および外気取入口９を比較的容易に得ることができるとともに、側壁６ｂの筒外側の隙間Ｓを利用してフィラーチューブ３内と区画されたベーパ通路Ｃ２を比較的容易に得ることができる。   Further, in the present embodiment, the partition wall 6 is formed in a bottomed cylindrical shape that opens toward the back side in the insertion direction of the oil supply nozzle 1, and the nozzle insertion port 7 and the outside air intake are formed in the bottom wall 6 c of the partition wall 6. Inlet 9 was formed. Therefore, the nozzle insertion port 7 and the outside air intake port 9 can be obtained relatively easily using the bottom wall 6c of the partition wall 6, and the space inside the filler tube 3 can be separated from the inside of the filler tube 3 using the gap S outside the cylinder of the side wall 6b. The vapor passage C2 thus made can be obtained relatively easily.

（第２実施形態）図４は、本実施形態にかかる給油ノズル差込部構造の筒部を透視して隔壁を示す模式的な斜視図、図５は、給油ノズル差込部構造の内部構造を示す断面図であって給油ノズルを差し込んだ状態を示す図である。   (Second Embodiment) FIG. 4 is a schematic perspective view showing a partition wall by seeing through a cylindrical portion of the oil supply nozzle insertion portion structure according to this embodiment, and FIG. 5 is an internal structure of the oil supply nozzle insertion portion structure. FIG. 6 is a cross-sectional view showing a state where an oil supply nozzle is inserted.

本実施形態でも、上記第１実施形態と同様に、筒部Ｃ内にフィラーチューブ３側を覆うように筒状の隔壁６Ａを配置してある。ただし、本実施形態では、外気取入口９Ａを、ノズル挿通口７の周縁を複数箇所凹設した給油ノズル１の差込方向（隔壁６Ａの筒内部の軸方向）に沿って伸びる凹溝として設けてある。このため、ノズル挿通口７に給油ノズル１を挿通させた状態で、この給油ノズル１の外周に、外気取入口９Ａが複数箇所形成されることになる。   Also in the present embodiment, a cylindrical partition wall 6A is arranged in the cylindrical portion C so as to cover the filler tube 3 side, as in the first embodiment. However, in the present embodiment, the outside air inlet 9A is provided as a groove extending along the insertion direction of the oil supply nozzle 1 in which the peripheral edge of the nozzle insertion port 7 is recessed at a plurality of positions (the axial direction inside the cylinder of the partition wall 6A). It is. For this reason, in a state where the oil supply nozzle 1 is inserted through the nozzle insertion opening 7, a plurality of outside air intakes 9 </ b> A are formed on the outer periphery of the oil supply nozzle 1.

さらに、本実施形態では、筒状の隔壁６Ａの外周面６ｄを全体的にボトルネック状に括れさせた狭窄部８Ａを形成し、この狭窄部８Ａと拡径部３ｓとの間の隙間Ｓをベーパ通路Ｃ２としてある。なお、この狭窄部８Ａにおいても、差込方向奥側の端部でその深さを当該差込方向奥側から開口端２ａ側に向けて漸増させてベーパ通路Ｃ２の屈曲部８ｂを設けてある。   Further, in the present embodiment, a narrowed portion 8A is formed in which the outer peripheral surface 6d of the cylindrical partition wall 6A is entirely bounded in a bottleneck shape, and a gap S between the narrowed portion 8A and the enlarged diameter portion 3s is formed. This is a vapor passage C2. Also in this narrowed portion 8A, the bent portion 8b of the vapor passage C2 is provided by gradually increasing the depth at the end on the back side in the insertion direction from the back side in the insertion direction toward the opening end 2a. .

また、本実施形態では、筒体２を設けず、フィラーチューブ３の拡径部３ｓによって筒部Ｃを構成し、当該拡径部３ｓをそのまま取付ブラケット５に接続してある。なお、ねじ部等は拡径部３ｓに設けるが、ここでは図示省略してある。   In the present embodiment, the cylindrical body 2 is not provided, the cylindrical portion C is configured by the enlarged diameter portion 3 s of the filler tube 3, and the enlarged diameter portion 3 s is directly connected to the mounting bracket 5. In addition, although a screw part etc. are provided in the enlarged diameter part 3s, illustration is abbreviate | omitted here.

以上の構成を備える本実施形態によっても、上記第１実施形態と同様の効果を得ることができる。特に、本実施形態では、外気取入口９Ａを、ノズル挿通口７の周縁を凹設して設けたため、外気取入口９Ａを比較的簡素な構成として得ることができる。また、ノズル挿通口７と外気取入口９Ａとを別個に形成した場合に比べて筒部Ｃを径方向により小さくすることができる。   According to the present embodiment having the above configuration, the same effect as that of the first embodiment can be obtained. In particular, in the present embodiment, the outside air inlet 9A is provided by recessing the peripheral edge of the nozzle insertion port 7, so that the outside air inlet 9A can be obtained with a relatively simple configuration. Further, the cylindrical portion C can be made smaller in the radial direction than when the nozzle insertion port 7 and the outside air intake port 9A are formed separately.

以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、種々に変形することが可能である。例えば、ベーパチューブの接続位置や配索方向は種々に変更可能である。一例として、ベーパチューブを筒部の中心軸より上側に接続することが可能である場合には、ベーパ通路をなす凹溝をノズル挿通口の上方に設ける一方、外気取入口をノズル挿通口の下方に設けるのが好適である。また、隔壁の形状等も筒状には限定されず、種々に変更することが可能である。   The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the connection position and wiring direction of the vapor tube can be variously changed. As an example, when the vapor tube can be connected to the upper side of the central axis of the cylinder portion, a concave groove forming a vapor passage is provided above the nozzle insertion port, while an outside air intake port is provided below the nozzle insertion port. It is preferable to provide in. Further, the shape of the partition wall is not limited to the cylindrical shape, and can be variously changed.

本発明の第１実施形態にかかる給油ノズル差込部構造の内部構造を示す断面図である。It is sectional drawing which shows the internal structure of the oil supply nozzle insertion part structure concerning 1st Embodiment of this invention. 本発明の第１実施形態にかかる給油ノズル差込部構造の筒部を透視して隔壁を示す模式的な斜視図である。It is a typical perspective view which sees through the cylinder part of the oil supply nozzle insertion part structure concerning 1st Embodiment of this invention, and shows a partition. 図１に給油ノズルを差し込んだ状態を示す図である。It is a figure which shows the state which inserted the oil supply nozzle in FIG. 本発明の第２実施形態にかかる給油ノズル差込部構造の筒部を透視して隔壁を示す模式的な斜視図である。It is a typical perspective view which sees through the cylinder part of the oil supply nozzle insertion part structure concerning 2nd Embodiment of this invention, and shows a partition. 本発明の第２実施形態にかかる給油ノズル差込部構造の内部構造を示す断面図であって給油ノズルを差し込んだ状態を示す図である。It is sectional drawing which shows the internal structure of the oil supply nozzle insertion part structure concerning 2nd Embodiment of this invention, Comprising: It is a figure which shows the state which inserted the oil supply nozzle.

符号の説明Explanation of symbols

１ 給油ノズル
２ａ 開口端
３ フィラーチューブ
４ ベントチューブ
６，６Ａ 隔壁
６ｂ 側壁
６ｃ 底壁
６ｄ 外周面
７ ノズル挿通口
８ 凹溝
８ｂ 屈曲部
９，９Ａ 外気取入口
Ｃ 筒部
Ｃ１ 供給路
Ｃ２ ベーパ通路
Ｆ 燃料
Ｖ 燃料ベーパ DESCRIPTION OF SYMBOLS 1 Oil supply nozzle 2a Open end 3 Filler tube 4 Vent tube 6, 6A Partition wall 6b Side wall 6c Bottom wall 6d Outer peripheral surface 7 Nozzle insertion port 8 Concave groove 8b Bending part 9, 9A Outside air intake C Cylinder part C1 Supply path C2 Vapor path F Fuel V Fuel vapor

Claims (7)

給油ノズルを差し込む筒部と、当該筒部に差し込まれた給油ノズルから排出された燃料の供給路となるフィラーチューブと、燃料ベーパを排出するベントチューブと、を備えた給油ノズル差込部構造において、
前記筒部内に、前記フィラーチューブ側を覆うとともに前記筒部に差し込まれた給油ノズルを挿通するノズル挿通口が形成された隔壁を設け、
前記ベントチューブから前記筒部の開口端に向かうベーパ通路が、前記隔壁によって前記フィラーチューブ内と区画された状態で形成されるようにしたことを特徴とする給油ノズル差込部構造。 In a fuel nozzle insertion portion structure comprising a cylinder portion into which a fuel nozzle is inserted, a filler tube that serves as a supply path for fuel discharged from the fuel nozzle inserted into the cylinder portion, and a vent tube that discharges fuel vapor ,
In the cylindrical portion, provided with a partition wall that covers the filler tube side and is formed with a nozzle insertion port for inserting a fuel nozzle inserted into the cylindrical portion,
An oil supply nozzle insertion portion structure characterized in that a vapor passage from the vent tube toward the opening end of the cylindrical portion is formed in a state partitioned from the filler tube by the partition wall. 前記隔壁を筒状に形成し、当該隔壁の筒外側の少なくとも一部に前記ベーパ通路を形成したことを特徴とする請求項１に記載の給油ノズル差込部構造。   The oil filler nozzle insertion portion structure according to claim 1, wherein the partition wall is formed in a cylindrical shape, and the vapor passage is formed in at least a part of the cylinder outside the partition wall. 前記隔壁の外周面に、前記筒部の開口端側に向けて延設されて前記ベーパ通路の一部をなす凹溝を設けたことを特徴とする請求項２に記載の給油ノズル差込部構造。   3. The oil supply nozzle insertion portion according to claim 2, wherein a concave groove that extends toward an opening end side of the cylindrical portion and forms a part of the vapor passage is provided on an outer peripheral surface of the partition wall. Construction. 前記凹溝の深さを当該凹溝の延設方向に沿って除変させて前記ベーパ通路の屈曲部を形成したことを特徴とする請求項３に記載の給油ノズル差込部構造。   The oil supply nozzle insertion portion structure according to claim 3, wherein the depth of the concave groove is changed along the extending direction of the concave groove to form a bent portion of the vapor passage. 前記隔壁は、前記給油ノズルの差込方向奥側に向けて開放される有底筒状に形成され、当該隔壁の底壁に、前記筒部内の開口端側と前記フィラーチューブ内とを連通する外気取入口と、前記ノズル挿通口と、を形成したことを特徴とする請求項１〜４のうちいずれか一つに記載の給油ノズル差込部構造。   The partition wall is formed in a bottomed cylindrical shape that opens toward the back side in the insertion direction of the oil supply nozzle, and communicates with the bottom wall of the partition wall between the opening end side in the cylinder portion and the filler tube. The oil supply nozzle insertion portion structure according to any one of claims 1 to 4, wherein an outside air intake port and the nozzle insertion port are formed. 前記外気取入口を、前記ノズル挿通口に対して前記ベーパ通路の反対側に形成したことを特徴とする請求項５に記載の給油ノズル差込部構造。   The oil supply nozzle insertion portion structure according to claim 5, wherein the outside air inlet is formed on the opposite side of the vapor passage with respect to the nozzle insertion port. 前記筒部内の開口端側と前記フィラーチューブ内とを連通する外気取入口を、前記ノズル挿通口の周縁を凹設して設けたことを特徴とする請求項２〜４のうちいずれか一つに記載の給油ノズル差込部構造。   The outside air intake port that communicates between the opening end side in the cylindrical portion and the filler tube is provided with a peripheral edge of the nozzle insertion port provided in a recessed manner. The structure of the oil supply nozzle insertion part described in 2.
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Cited By (6)

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JP2010188867A (en) * 2009-02-18 2010-09-02 Nissan Motor Co Ltd Structure of inserting part of oil supply nozzle
WO2012074003A1 (en) * 2010-12-02 2012-06-07 株式会社ニフコ Guide device for fuel filler nozzle
WO2012120983A1 (en) * 2011-03-04 2012-09-13 株式会社ニフコ Guide device for fuel filling nozzle
WO2015052168A1 (en) * 2013-10-09 2015-04-16 Kautex Textron Gmbh & Co. Kg Filling device for a motor vehicle operating fluid container
CN106427543A (en) * 2015-08-06 2017-02-22 奥迪股份公司 Fuel tank arrangement structure for motor vehicle
DE102016206341A1 (en) * 2016-04-15 2017-10-19 Volkswagen Aktiengesellschaft Filling device for filling a tank with liquid reducing agent, and motor vehicle with such a filling device

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010188867A (en) * 2009-02-18 2010-09-02 Nissan Motor Co Ltd Structure of inserting part of oil supply nozzle
WO2012074003A1 (en) * 2010-12-02 2012-06-07 株式会社ニフコ Guide device for fuel filler nozzle
JP2012116380A (en) * 2010-12-02 2012-06-21 Nifco Inc Guide device for fuel filler nozzle
KR101406665B1 (en) * 2010-12-02 2014-06-11 가부시키가이샤 니프코 Guide device for fuel filler nozzle
WO2012120983A1 (en) * 2011-03-04 2012-09-13 株式会社ニフコ Guide device for fuel filling nozzle
WO2015052168A1 (en) * 2013-10-09 2015-04-16 Kautex Textron Gmbh & Co. Kg Filling device for a motor vehicle operating fluid container
CN105612075A (en) * 2013-10-09 2016-05-25 考特克斯·特克斯罗恩有限公司及两合公司 Filling device for a motor vehicle operating fluid container
US9669706B2 (en) 2013-10-09 2017-06-06 Kautex Textron Gmbh & Co. Kg Filling device for a motor vehicle operating fluid container
CN106427543A (en) * 2015-08-06 2017-02-22 奥迪股份公司 Fuel tank arrangement structure for motor vehicle
US10245942B2 (en) 2015-08-06 2019-04-02 Audi Ag Operating medium tank arrangement for a motor vehicle
DE102016206341A1 (en) * 2016-04-15 2017-10-19 Volkswagen Aktiengesellschaft Filling device for filling a tank with liquid reducing agent, and motor vehicle with such a filling device

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