JP4065252B2 - Vehicle fuel tank - Google Patents

Vehicle fuel tank Download PDF

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Publication number
JP4065252B2
JP4065252B2 JP2004153672A JP2004153672A JP4065252B2 JP 4065252 B2 JP4065252 B2 JP 4065252B2 JP 2004153672 A JP2004153672 A JP 2004153672A JP 2004153672 A JP2004153672 A JP 2004153672A JP 4065252 B2 JP4065252 B2 JP 4065252B2
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Prior art keywords
fuel
passage
tank body
fuel tank
tank
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JP2005335436A (en
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邦夫 宮内
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2004153672A priority Critical patent/JP4065252B2/en
Priority to DE200510023713 priority patent/DE102005023713B4/en
Priority to TW94116924A priority patent/TWI274679B/en
Priority to GB0510606A priority patent/GB2414455B/en
Priority to CNB2005100734260A priority patent/CN100360334C/en
Publication of JP2005335436A publication Critical patent/JP2005335436A/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
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • 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
    • B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
    • 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
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • 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
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0777—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation in-tank reservoirs or baffles integrally manufactured with the fuel Tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • F02M37/0094—Saddle tanks; Tanks having partition walls

Description

本発明は、タンク本体の上壁の一部および下壁の一部の少なくとも一方に他方に向けて突出する突出部を形成し、この突出部の先端の接合面で前記上壁の一部および下壁の一部を相互に接合した車両用燃料タンクに関する。   In the present invention, at least one of a part of the upper wall and a part of the lower wall of the tank body is formed with a projecting part projecting toward the other, and a part of the upper wall and The present invention relates to a fuel tank for a vehicle in which parts of a lower wall are joined to each other.

車両の走行に伴う加速度や動揺によって燃料タンク内の燃料液面が大きく変動したり細かく波立ったりすると、燃料の吸い込みに支障を来したり燃料タンクの内面に燃料が衝突して騒音が発生したりする問題がある。そこで、燃料タンクの下壁にバッフル板を溶接して燃料の移動を抑制するものが、下記特許文献１により公知である。   If the fuel level in the fuel tank fluctuates greatly or swells due to acceleration or swaying as the vehicle travels, it may interfere with fuel suction or cause noise when the fuel collides with the inner surface of the fuel tank. There is a problem. Therefore, it is known from Patent Document 1 below that a baffle plate is welded to the lower wall of the fuel tank to suppress the movement of the fuel.

また合成樹脂製の燃料タンクにおいて、その上壁および下壁から相互に接近する方向に突出する突出部の先端どうしを溶着することで、燃料タンクの上壁および下壁の剛性を高めるとともに、前記突出部にバッフル板としての機能を発揮させるものも公知である。
実公平７−４７２１９号公報 Further, in the fuel tank made of synthetic resin, by welding the tips of the protruding portions protruding in the direction approaching each other from the upper wall and the lower wall, the rigidity of the upper wall and the lower wall of the fuel tank is increased, and What makes a protrusion part exhibit the function as a baffle board is also well-known.
No. 7-47219

ところで、上記特許文献１に記載されたバッフル板は燃料タンクの下壁に固定されており、その上端と燃料タンクの上壁との間に隙間を有している。しかしながら、燃料タンクの上壁および下壁から相互に接近する方向に突出する突出部の先端どうしを溶着してバッフル板を構成した場合は、上壁および下壁が完全に接合されて前記隙間が形成されないため、燃料タンク内で移動してバッフル板に衝突した燃料が強く跳ね返されてしまい、燃料の暴れを抑制する効果が低下してしまったり、燃料タンク内の気液分離がスムーズに行われなくなったりする問題がある。   Incidentally, the baffle plate described in Patent Document 1 is fixed to the lower wall of the fuel tank, and there is a gap between the upper end of the baffle plate and the upper wall of the fuel tank. However, when the baffle plate is formed by welding the tips of the protruding portions that protrude in directions approaching each other from the upper wall and the lower wall of the fuel tank, the upper wall and the lower wall are completely joined and the gap is not formed. As a result, the fuel that has moved inside the fuel tank and collided with the baffle plate is strongly bounced back, reducing the effect of suppressing fuel rampage, and the gas-liquid separation in the fuel tank is performed smoothly. There is a problem that disappears.

本発明は前述の事情に鑑みてなされたもので、燃料タンクのタンク本体の剛性向上および燃料の波消し効果を両立させることを目的とする。   The present invention has been made in view of the above-described circumstances, and an object of the present invention is to achieve both the improvement of the rigidity of the tank body of the fuel tank and the fuel wave elimination effect.

上記目的を達成するために、請求項１に記載された発明によれば、タンク本体の上壁の一部および下壁の一部の少なくとも一方に他方に向けて突出する突出部を形成し、この突出部の先端の接合面で上壁および下壁を相互に接合した車両用燃料タンクにおいて、前記接合面に沿って燃料が通過可能な通路を形成するとともに、タンク本体の内部の前記通路の延長線上に燃料ポンプユニットを配置したことを特徴とする車両用燃料タンクが提案される。 In order to achieve the above object, according to the first aspect of the present invention, a protrusion projecting toward the other is formed on at least one of a part of the upper wall and a part of the lower wall of the tank body, In the vehicle fuel tank in which the upper wall and the lower wall are joined to each other at the joint surface at the tip of the projecting portion, a passage through which fuel can pass is formed along the joint surface, and the passage inside the tank body A fuel tank for a vehicle is proposed in which a fuel pump unit is arranged on an extension line .

また請求項２に記載された発明によれば、請求項１の構成に加えて、前記通路は滑らかに湾曲する壁部を有することを特徴とする車両用燃料タンクが提案される。   According to a second aspect of the present invention, in addition to the configuration of the first aspect, a fuel tank for a vehicle is proposed in which the passage has a smoothly curved wall portion.

また請求項３に記載された発明によれば、請求項１の構成に加えて、前記通路の一側面をタンク本体の内部空間に連通するように開放したことを特徴とする車両用燃料タンクが提案される。 According to a third aspect of the present invention, in addition to the configuration of the first aspect, the vehicle fuel tank is characterized in that one side surface of the passage is opened to communicate with the internal space of the tank body. Proposed.

請求項１の構成によれば、タンク本体の上壁の一部および下壁の一部の少なくとも一方に他方に向けて突出するように形成した突出部の先端の接合面で上壁および下壁を相互に接合したので、その突出部でタンク本体の剛性を高めるとともに、燃料の移動を塞き止めてバッフル板の機能を発揮させることができる。また突出部の先端の接合面に沿って燃料が通過可能な通路を形成したので、この通路により突出部に衝突した燃料が強く跳ね返されるのを防止してバッフル板の効果を更に高めることができるだけでなく、タンク本体内の気液分離をスムーズに行わせることができる。しかも突出部の先端の接合面に沿って通路を形成したので、その通路の形成が極めて容易である。   According to the configuration of claim 1, the upper wall and the lower wall at the joint surface at the tip of the protruding portion formed to protrude toward at least one of a part of the upper wall and a part of the lower wall of the tank main body. As a result, the rigidity of the tank body can be increased by the protruding portion, and the movement of the fuel can be blocked and the function of the baffle plate can be exhibited. In addition, since the passage through which the fuel can pass is formed along the joint surface at the tip of the protruding portion, it is possible to prevent the fuel colliding with the protruding portion from being strongly rebounded by this passage and further enhance the effect of the baffle plate. In addition, the gas-liquid separation in the tank body can be performed smoothly. Moreover, since the passage is formed along the joint surface at the tip of the protruding portion, the formation of the passage is very easy.

請求項２の構成によれば、タンク本体の上壁および下壁の接合面に沿って形成した通路が滑らかに湾曲する壁部を有するので、通路の壁部に応力が集中して接合面に割れや剥がれが発生するのを防止することができる。   According to the configuration of the second aspect, since the passage formed along the joining surface of the upper wall and the lower wall of the tank body has a smoothly curved wall portion, stress concentrates on the wall portion of the passage and the joining surface It is possible to prevent cracking and peeling.

請求項３の構成によれば、タンク本体の上壁および下壁の接合面に沿って形成した通路の一側面をタンク本体の内部空間に連通するように開放したので、通路に対して横方向から当たる燃料を一側面が開放した通路内に逃がすことで、燃料の跳ね返りを抑制して波消し効果を更に高めることができる。 According to the configuration of claim 3, since one side surface of the passage formed along the joining surface of the upper wall and the lower wall of the tank main body is opened so as to communicate with the internal space of the tank main body, By letting the fuel that hits the fuel into the passage that is open on one side surface, it is possible to suppress the fuel bounce and further enhance the wave-dissipating effect.

以下、本発明の実施の形態を、添付の図面に示した本発明の実施例に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

図１〜図３は本発明の第１実施例を示すもので、図１は車両用燃料タンクの斜視図、図２は図１の２−２線断面図、図３は図１の３−３線断面図である。   1 to 3 show a first embodiment of the present invention. FIG. 1 is a perspective view of a fuel tank for a vehicle, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. FIG.

車両用の燃料タンクＴのタンク本体１１は、上壁１２および下壁１３を有して合成樹脂で成形される。タンク本体１１の上壁１２に形成した開口１４を着脱自在に覆う取付フランジ１５の下面にステー１６を介して燃料ポンプユニット１７が支持されており、燃料ポンプユニット１７から延びるフィードパイプ１８が取付フランジ１５を貫通してエンジン（図示せず）に接続されるとともに、エンジンからのリターンパイプ１９が取付フランジ１５を貫通して燃料タンクＴ内に延びている。また取付フランジ１５の下面にフロート２０を備えた液面センサ２１が設けられる。   A tank body 11 of a vehicle fuel tank T has an upper wall 12 and a lower wall 13 and is formed of a synthetic resin. A fuel pump unit 17 is supported via a stay 16 on the lower surface of an attachment flange 15 that detachably covers an opening 14 formed in the upper wall 12 of the tank body 11, and a feed pipe 18 extending from the fuel pump unit 17 is attached to the attachment flange. A return pipe 19 from the engine extends through the mounting flange 15 and into the fuel tank T while being connected to the engine (not shown). A liquid level sensor 21 having a float 20 is provided on the lower surface of the mounting flange 15.

タンク本体１１の上壁１２から下壁１３に向けて下向きに突出するダンベル形の突出部１２ａと、タンク本体１１の下壁１３から上壁１２に向けて上向きに突出するダンベル形の突出部１３ａとが、概ね矩形状の接合面２２において一体に溶着される、接合面２２の長手方向中央部には、そこを横断するように通路２３が貫通する。通路２３の壁部２３ａは応力集中を起こさないように滑らかな円形あるいは楕円形に形成される。通路２３を突出部１２ａ，１３ａの接合面２２を利用して形成したことで、その形成が容易になる。   A dumbbell-shaped protrusion 12a that protrudes downward from the upper wall 12 of the tank body 11 toward the lower wall 13, and a dumbbell-shaped protrusion 13a that protrudes upward from the lower wall 13 of the tank body 11 toward the upper wall 12. However, the passage 23 penetrates the central portion in the longitudinal direction of the joint surface 22, which is integrally welded to the substantially rectangular joint surface 22. The wall 23a of the passage 23 is formed in a smooth circular or elliptical shape so as not to cause stress concentration. Since the passage 23 is formed using the joint surface 22 of the projecting portions 12a and 13a, the formation thereof is facilitated.

突出部１２ａ，１３ａはタンク本体１１の横方向（図１の矢印ａ−ａ方向）に延在しており、この突出部１２ａ，１３ａを挟んでタンク本体１１の内部に縦方向（図１の矢印ｂ−ｂ方向）に離間した第１室２４および第２室２５が区画される。但し、第１室２４および第２室２５は完全に分離しておらず、突出部１２ａ，１３ａの長手方向両端部の外側と、前記通路２３とを介して相互に連通する。このとき、通路２３の高さｈを、それに隣接するタンク本体１１の高さＨの４０％以下（ｈ／Ｈ≦４０％）とすることが好ましい。   The protrusions 12a and 13a extend in the lateral direction of the tank body 11 (in the direction of arrows aa in FIG. 1), and the protrusions 12a and 13a extend in the vertical direction (in FIG. A first chamber 24 and a second chamber 25 separated in the direction of arrow bb are partitioned. However, the first chamber 24 and the second chamber 25 are not completely separated from each other and communicate with each other through the passage 23 and the outside of both ends in the longitudinal direction of the projecting portions 12a and 13a. At this time, the height h of the passage 23 is preferably 40% or less (h / H ≦ 40%) of the height H of the tank body 11 adjacent thereto.

次に、上記構成を備えた第１実施例の作用について説明する。   Next, the operation of the first embodiment having the above configuration will be described.

温度変化によりタンク本体１１の内圧が増減すると、偏平で面積の広い上壁１２および下壁１３が上下方向に変形しようとするが、上壁１２の突出部１２ａおよび下壁１３の突出部１３ａを接合面２２で相互に溶着したことにより、タンク本体１１に前記内圧の増減に耐える剛性を与えることができる。   When the internal pressure of the tank body 11 increases or decreases due to the temperature change, the flat and wide upper wall 12 and lower wall 13 tend to be deformed in the vertical direction, but the protrusion 12a of the upper wall 12 and the protrusion 13a of the lower wall 13 are By welding to each other at the joint surface 22, the tank body 11 can be given rigidity to withstand the increase and decrease of the internal pressure.

また車両の走行に伴う加速度や動揺によってタンク本体１１内の燃料が縦方向（図１の矢印ｂ−ｂ方向）に移動しようとしたとき、第１室２４および第２室２５間に介在する突出部１２ａ，１３ａがバッフル板の機能を発揮して燃料の移動を阻止することで、燃料液面の大きな変動を抑制するとともに、燃料がタンク本体１１の内面に勢い良く衝突して騒音を発生するのを防止することができる。   Further, when the fuel in the tank body 11 is about to move in the vertical direction (in the direction of the arrow bb in FIG. 1) due to acceleration or swaying as the vehicle travels, a protrusion interposed between the first chamber 24 and the second chamber 25. The portions 12a and 13a exhibit the function of the baffle plate to prevent the movement of the fuel, thereby suppressing large fluctuations in the fuel liquid level and causing the fuel to vigorously collide with the inner surface of the tank body 11 to generate noise. Can be prevented.

このとき、突出部１２ａ，１３ａの中央部に第１室２４および第２室２５を連通させる通路２３が形成されているため、突出部１２ａ，１３ａに衝突した燃料の一部が通路２３を通過することで、突出部１２ａ，１３ａに跳ね返される燃料の量を減少させて燃料の波立ちを一層効果的に抑えることが可能となり、突出部１２ａ，１３ａのバッフル板としての機能が更に向上する。また燃料液面の変動により例えば第２室２５に大量の空気が侵入したような場合に、その空気を通路２３を介して速やかに第１室２４に戻すことが可能になり、タンク本体１１の気液分離機能を高めて第１、第２室２４，２５の燃料液面を均一化することができる。   At this time, since the passage 23 for communicating the first chamber 24 and the second chamber 25 is formed in the central portion of the protrusions 12a and 13a, a part of the fuel colliding with the protrusions 12a and 13a passes through the passage 23. By doing so, it becomes possible to reduce the amount of fuel bounced back to the protrusions 12a and 13a, and to more effectively suppress the undulation of the fuel, and the function of the protrusions 12a and 13a as the baffle plate is further improved. Further, for example, when a large amount of air has entered the second chamber 25 due to fluctuations in the fuel level, the air can be quickly returned to the first chamber 24 via the passage 23, The gas-liquid separation function can be enhanced to make the fuel liquid levels in the first and second chambers 24, 25 uniform.

特に、通路２３の高さｈを、それに隣接するタンク本体１１の高さＨの４０％以下（ｈ／Ｈ≦４０％）としたことにより、突出部１２ａ，１３ａのバッフル板としての効果を充分に発揮させることができる。仮に、ｈ／Ｈ＞４０％とすると、燃料が通路２３を容易に通過し過ぎて波消し効果が低減してしまう。   In particular, by setting the height h of the passage 23 to 40% or less (h / H ≦ 40%) of the height H of the tank body 11 adjacent to the passage 23, the effect of the projecting portions 12a and 13a as the baffle plate is sufficient. Can be demonstrated. If h / H> 40%, the fuel easily passes too much through the passage 23 and the wave eliminating effect is reduced.

また通路２３の壁部２３ａを充分な湾曲を有する構成としたことにより、タンク本体１１の内圧が増加した場合や外部から衝撃が加わった場合に応力集中が発生するのを抑制し、接合面２２に割れや剥がれが生じるのを防止することができる。   Further, since the wall portion 23a of the passage 23 has a sufficiently curved configuration, it is possible to suppress the occurrence of stress concentration when the internal pressure of the tank body 11 increases or when an impact is applied from the outside, and the joining surface 22 Can be prevented from cracking or peeling.

次に、図４に基づいて本発明の第２実施例を説明する。   Next, a second embodiment of the present invention will be described with reference to FIG.

第２実施例は通路２３の壁部２３ａの一側面をタンク本体１１の内部空間に連通するように開放したもので、その他の構成は第１実施例と同じである。この第２実施例によれば、車両の走行に伴う加速度や動揺によってタンク本体１１内の燃料が移矢印ｃ方向に移動したとき、その燃料の一部が前記開放された側面から通路２３を経て第１、第２室２４，２５に逃がされるため、燃料の跳ね返りを減少させて燃料の波立ちを一層効果的に抑えることが可能となる。 In the second embodiment, one side surface of the wall portion 23a of the passage 23 is opened so as to communicate with the internal space of the tank body 11 , and other configurations are the same as those of the first embodiment. According to the second embodiment, when the fuel in the tank main body 11 moves in the direction of the transfer arrow c due to acceleration or shaking associated with traveling of the vehicle, a part of the fuel passes through the passage 23 from the opened side surface. Since escape is made to the first and second chambers 24 and 25, it is possible to reduce the fuel rebound and to more effectively suppress the ripple of the fuel.

次に、図５に基づいて本発明の第３実施例を説明する。   Next, a third embodiment of the present invention will be described with reference to FIG.

第３実施例は通路２３の断面形状をダンベル型にしたもので、通路２３の高さを増加させずに通路断面積を調整することができる。   In the third embodiment, the cross-sectional shape of the passage 23 is a dumbbell shape, and the cross-sectional area of the passage can be adjusted without increasing the height of the passage 23.

次に、図６に基づいて本発明の第４実施例を説明する。   Next, a fourth embodiment of the present invention will be described with reference to FIG.

第４実施例は通路２３の断面形状を鞍型にしたもので、燃料液面の上昇に応じて波消し効果を低減することができる。   In the fourth embodiment, the cross-sectional shape of the passage 23 is a saddle shape, and the wave eliminating effect can be reduced as the fuel level rises.

以上、本発明の実施例を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.

例えば、実施例のタンク本体１１は合成樹脂製であるが、金属製であっても良い。   For example, the tank body 11 of the embodiment is made of synthetic resin, but may be made of metal.

また実施例では上壁１２の突出部１２ａおよび下壁１３の突出部１３ａを接合面２２で溶着しているが、接着や溶接のような他の接合手段を採用することができる。   Moreover, although the protrusion part 12a of the upper wall 12 and the protrusion part 13a of the lower wall 13 are welded by the joining surface 22 in the Example, other joining means, such as adhesion | attachment and welding, are employable.

また実施例では上壁１２および下壁１３の両方に突出部１２ａ，１３ａを形成しているが、その一方だけに突出部を形成しても良い。   In the embodiment, the protruding portions 12a and 13a are formed on both the upper wall 12 and the lower wall 13, but the protruding portion may be formed on only one of them.

また実施例のタンク本体１１は１個の通路２３だけを備えているが、通路２３の数は複数個であっても良い。   The tank body 11 of the embodiment includes only one passage 23, but the number of passages 23 may be plural.

また通路２３の形状は実施例のものに限定されず、適宜変更することができる。   Moreover, the shape of the channel | path 23 is not limited to the thing of an Example, It can change suitably.

第１実施例に係る車両用燃料タンクの斜視図1 is a perspective view of a vehicle fuel tank according to a first embodiment. 図１の２−２線断面図2-2 sectional view of FIG. 図１の３−３線断面図3-3 sectional view of FIG. 第２実施例に係る、前記図３に対応する図The figure corresponding to the said FIG. 3 based on 2nd Example. 第３実施例に係る、前記図３に対応する図The figure corresponding to the said FIG. 3 based on 3rd Example. 第４実施例に係る、前記図３に対応する図The figure corresponding to the said FIG. 3 based on 4th Example.

符号の説明Explanation of symbols

１１ タンク本体
１２ 上壁
１２ａ 突出部
１３ 下壁
１３ａ 突出部
１７ 燃料ポンプユニット
２２ 接合面
２３ 通路
２３ａ 壁部 11 Tank body 12 Upper wall 12a Protruding portion 13 Lower wall 13a Protruding portion
17 fuel pump unit 22 joint surface 23 passage 23a wall

Claims (3)

タンク本体（１１）の上壁（１２）の一部および下壁（１３）の一部の少なくとも一方に他方に向けて突出する突出部（１２ａ，１３ａ）を形成し、この突出部（１２ａ，１３ａ）の先端の接合面（２２）で上壁（１２）および下壁（１３）を相互に接合した車両用燃料タンクにおいて、
前記接合面（２２）に沿って燃料が通過可能な通路（２３）を形成するとともに、タンク本体（１１）の内部の前記通路（２３）の延長線上に燃料ポンプユニット（１７）を配置したことを特徴とする車両用燃料タンク。 Protruding portions (12a, 13a) projecting toward the other are formed on at least one of the upper wall (12) and the lower wall (13) of the tank body (11). In the vehicle fuel tank in which the upper wall (12) and the lower wall (13) are joined to each other at the joint surface (22) at the tip of 13a),
A passage (23) through which fuel can pass is formed along the joint surface (22), and the fuel pump unit (17) is disposed on an extension line of the passage (23) inside the tank body (11). A fuel tank for vehicles. 前記通路（２３）は滑らかに湾曲する壁部（２３ａ）を有することを特徴とする、請求項１に記載の車両用燃料タンク。   The vehicle fuel tank according to claim 1, wherein the passage (23) has a wall portion (23a) that is smoothly curved. 前記通路（２３）の一側面をタンク本体（１１）の内部空間に連通するように開放したことを特徴とする、請求項１に記載の車両用燃料タンク。 The vehicle fuel tank according to claim 1, wherein one side surface of the passage (23) is opened so as to communicate with the internal space of the tank body (11) .
JP2004153672A 2004-05-24 2004-05-24 Vehicle fuel tank Expired - Fee Related JP4065252B2 (en)

Priority Applications (5)

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JP2004153672A JP4065252B2 (en) 2004-05-24 2004-05-24 Vehicle fuel tank
DE200510023713 DE102005023713B4 (en) 2004-05-24 2005-05-23 Fuel tank for a vehicle
TW94116924A TWI274679B (en) 2004-05-24 2005-05-24 Vehicle fuel tank
GB0510606A GB2414455B (en) 2004-05-24 2005-05-24 Vehicle fuel tank
CNB2005100734260A CN100360334C (en) 2004-05-24 2005-05-24 Vehicle fuel tank

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KR100867807B1 (en) * 2006-11-13 2008-11-10 현대자동차주식회사 Baffle for automotive fuel tank
JP5134420B2 (en) * 2008-04-04 2013-01-30 富士重工業株式会社 Vehicle fuel tank
JP4673915B2 (en) 2008-12-02 2011-04-20 本田技研工業株式会社 Wave breaking structure of fuel tank
JP5135259B2 (en) 2009-03-04 2013-02-06 本田技研工業株式会社 Wave breaking structure of fuel tank
EP2927038B1 (en) * 2014-04-01 2016-11-30 Inergy Automotive Systems Research (Société Anonyme) Vehicle supply system and use of a thermo-hydraulic unit in a vehicle
JP6943721B2 (en) * 2017-10-12 2021-10-06 トヨタ自動車株式会社 Fuel tank

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DE1455496B2 (en) * 1964-04-25 1974-01-24 Kautex-Werke Reinhold Hagen Gmbh, 5300 Bonn-Holzlar Fuel tank for vehicles with a swirl pot
IT1077423B (en) * 1977-07-27 1985-05-04 Alfa Romeo Spa FUEL TANK FOR A VEHICLE
IT8153149V0 (en) * 1981-04-16 1981-04-16 Fiat Auto Spa FUEL TANK PARTICULARLY PARTLY FOR VEHICLES
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TW200607672A (en) 2006-03-01
CN1701982A (en) 2005-11-30
JP2005335436A (en) 2005-12-08
GB2414455A (en) 2005-11-30
DE102005023713A1 (en) 2006-02-02
TWI274679B (en) 2007-03-01
DE102005023713B4 (en) 2009-10-15
GB2414455B (en) 2007-11-14
GB0510606D0 (en) 2005-06-29

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