JP2009542519A - Fuel tank used in automobiles - Google Patents

Fuel tank used in automobiles Download PDF

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Publication number
JP2009542519A
JP2009542519A JP2009518876A JP2009518876A JP2009542519A JP 2009542519 A JP2009542519 A JP 2009542519A JP 2009518876 A JP2009518876 A JP 2009518876A JP 2009518876 A JP2009518876 A JP 2009518876A JP 2009542519 A JP2009542519 A JP 2009542519A
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fuel tank
separator
activated carbon
carbon filter
fuel
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JP5021738B2 (en
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ルンプフ ベルント
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Continental Automotive GmbH
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Continental Automotive GmbH
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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
    • 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
    • B60K15/035—Fuel tanks characterised by venting means
    • 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
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0854—Details of the absorption canister
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • 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
    • F02M37/20—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 characterised by means for preventing vapour lock
    • 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
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • B60K2015/03509—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems with a droplet separator in the vent line
    • 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
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K2015/03542—Mounting of the venting means
    • B60K2015/03557—Mounting of the venting means comprising elements of the venting device integrated in the fuel tank, e.g. vapor recovery means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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)

Abstract

自動車に用いられる燃料タンク（１）は、通気装置（５）の分離器（１５）と、活性炭フィルタ（１３）とから成る構造ユニットを有している。構造ユニットは、燃料を集めるための室（２）の内側に配置されていて、分離器（１５）と活性炭フィルタ（１３）とを収容するための１つの共通の容器（６）を有している。この容器（６）は、燃料フィードユニット（４）に取り付けられている。  A fuel tank (1) used in an automobile has a structural unit including a separator (15) of an aeration device (5) and an activated carbon filter (13). The structural unit is arranged inside the chamber (2) for collecting fuel and has one common container (6) for accommodating the separator (15) and the activated carbon filter (13). Yes. The container (6) is attached to the fuel feed unit (4).

Description

本発明は、自動車に用いられる燃料タンクであって、通気装置（Entlueftungseinrichtung）を備えた、燃料を捕集するための室と、活性炭フィルタと、燃料を圧送するための燃料フィードユニットとが設けられていて、通気装置が、液状燃料とガスとを分離するための分離器を有している形式のものに関する。   The present invention is a fuel tank used in an automobile, and is provided with a chamber for collecting fuel, an activated carbon filter, and a fuel feed unit for pumping the fuel, which are provided with a venting device (Entlueftungseinrichtung). In addition, the venting device relates to a type having a separator for separating liquid fuel and gas.

このような形式の燃料タンクは通常、燃料タンクの外側に組み付けられた複数の個別の通気管路を有しており、実地から公知である。液状燃料とガスとを分離するための分離器は、しばしば燃料タンクの注入管片に配置されている。活性炭フィルタは、大抵の場合は燃料タンクの外側に、または燃料タンク内に配置されており、別の通気管路を介して分離器に接続されている。   This type of fuel tank usually has a plurality of individual vent lines assembled outside the fuel tank and is known from practice. Separators for separating liquid fuel and gas are often located in the fuel tank inlet tube piece. The activated carbon filter is most often located outside or within the fuel tank and is connected to the separator via a separate vent line.

この公知の燃料タンクにおいて不都合となるのは、この燃料タンクが極めて大きなスペースを取ることと、通気装置の、燃料タンクの外部に配置された構成部分の配置形式が、環境への燃料の拡散を助長してしまうことである。   The disadvantages of this known fuel tank are that the fuel tank takes up a very large space and the arrangement of the components of the venting device located outside the fuel tank prevents the fuel from diffusing into the environment. It is to encourage.

本発明の根底をなす課題は、冒頭で述べた形式の燃料タンクを改良して、コンパクトに構成されていてかつ環境への燃料の逃出を十分に阻止するような燃料タンクを提供することである。   The problem underlying the present invention is to improve the fuel tank of the type described at the outset, and to provide a fuel tank that is compact and sufficiently prevents the escape of fuel to the environment. is there.

この課題は本発明によって、分離器と活性炭フィルタとが、構造ユニットとして形成されていて、該構造ユニットが、燃料タンクの室の内側に配置されていることにより解決される。   This problem is solved according to the invention by the separator and the activated carbon filter being formed as a structural unit, which is arranged inside the chamber of the fuel tank.

この構成によって、通気装置の、液状またはガス状の燃料に接続している全ての構成部分を、本発明による燃料タンクの内部に配置することができる。これにより燃料タンクを特にコンパクトに構成することができる。さらに本発明により、環境への燃料蒸気の逃出が特に少なく保たれる。   With this arrangement, all the components of the venting device that are connected to the liquid or gaseous fuel can be arranged inside the fuel tank according to the invention. Thereby, a fuel tank can be comprised especially compactly. Furthermore, the present invention keeps fuel vapor escape to the environment particularly low.

本発明による燃料タンクの組付けは、分離器と活性炭フィルタとから成る構造ユニットが、燃料フィードユニットに取り付けられていると特に簡単に行うことができる。さらにこのことによって分離器と活性炭フィルタとから成る構造ユニットと、燃料フィードユニットとを、唯１つの組付け開口を通して本発明による燃料タンク内に挿入することができる。   The assembly of the fuel tank according to the invention can be carried out particularly simply if a structural unit consisting of a separator and an activated carbon filter is attached to the fuel feed unit. Furthermore, this makes it possible to insert the structural unit consisting of the separator and the activated carbon filter and the fuel feed unit into the fuel tank according to the invention through only one assembly opening.

本発明による燃料タンクは、分離器と活性炭フィルタとから成る構造ユニットが、活性炭フィルタと分離器とを分離するための隔壁を有する１つの共通の容器を有していると特にコンパクトに構成され得る。   The fuel tank according to the invention can be constructed in a particularly compact manner if the structural unit consisting of the separator and the activated carbon filter has one common container with a partition for separating the activated carbon filter and the separator. .

本発明の別の有利な改良形によって、分離器と活性炭フィルタとが、弁を介して接続されており、この弁が、ロール・オーバ・バルブおよび／またはスプラッシュガードバルブ（Schwallschutzventil）として形成されていると、活性炭フィルタ内への燃料の侵入を信頼性よく阻止することができる。スプラッシュガードバルブを形成するためには、弁が、たとえばフローティングエレメントを有していてよい。このフローティングエレメントは、液状燃料との接触時に、分離器と活性炭フィルタとの接続を遮断する。弁をロール・オーバ・バルブとして形成することは、本発明による燃料タンクを備えた自動車の横転時に、燃料が活性炭フィルタを通って流出することを阻止する。   According to another advantageous refinement of the invention, the separator and the activated carbon filter are connected via a valve, which is formed as a roll over valve and / or a splash guard valve (Schwallschutzventil). In this case, it is possible to reliably prevent the fuel from entering the activated carbon filter. In order to form a splash guard valve, the valve may for example have a floating element. This floating element cuts off the connection between the separator and the activated carbon filter when in contact with the liquid fuel. Forming the valve as a roll-over valve prevents fuel from flowing through the activated carbon filter when a vehicle with a fuel tank according to the present invention rolls over.

通気装置は、本発明の別の有利な改良形によって、分離器が、室の側方領域に通じている通気管路に接続されていると、特に小さな被組付け領域しか必要としない。   The venting device, according to another advantageous refinement of the invention, requires a particularly small mounting area when the separator is connected to a vent line leading to the side area of the chamber.

液状の燃料を分離器から排出することは、本発明の別の有利な改良形により、分離器内にサクションジェットポンプが配置されており、このサクションジェットポンプが前記室に開口していると特に簡単に行うことができる。   The discharge of liquid fuel from the separator is particularly advantageous when a suction jet pump is arranged in the separator, and this suction jet pump opens into the chamber, according to another advantageous refinement of the invention. It can be done easily.

燃料のエミッションを減じるためには、本発明の別の有利な改良形によって、分離器と活性炭フィルタとから成る構造ユニットが、燃料タンクに設けられた組付け開口を閉じるフランジから間隔を置いて配置されていることが寄与する。さらにこのことによって、特に簡単に、構造ユニットを組付け開口を通して、本発明による燃料タンク内に挿入することができる。   In order to reduce fuel emissions, according to another advantageous refinement of the invention, a structural unit consisting of a separator and an activated carbon filter is spaced from the flange closing the assembly opening provided in the fuel tank. It has been contributed. This also makes it particularly easy to insert the structural unit through the assembly opening into the fuel tank according to the invention.

本発明による燃料タンクの組付けをさらに簡単にするためには、分離器と活性炭フィルタとから成る構造ユニットに液面高さセンサが配置されていることが寄与する。   In order to further simplify the assembly of the fuel tank according to the present invention, it is contributed that the liquid level sensor is arranged in the structural unit composed of the separator and the activated carbon filter.

活性炭フィルタを規定された現象に応じて再生することは、本発明の別の有利な改良形によって、分離器と活性炭フィルタとの接続部に切換可能な再生弁が配置されており、この再生弁が、接続部を選択的に閉鎖または開放するために形成されていると簡単に実行することができる。この構成によって、分離器とのガス交換による、活性炭フィルタの再生への影響が信頼性よく阻止される。   According to another advantageous refinement of the invention, a regenerative valve that can be switched is arranged at the connection between the separator and the activated carbon filter, and the regenerative valve is regenerated in accordance with a defined phenomenon. Can be easily implemented if it is configured to selectively close or open the connection. With this configuration, the influence on the regeneration of the activated carbon filter due to the gas exchange with the separator is reliably prevented.

活性炭フィルタの再生をさらに簡単にするためには、活性炭フィルタが、フランジを貫いて案内された管路を介して環境に接続可能であり、かつ再生管路によって自動車の内燃機関に接続可能であることが寄与する。   In order to further simplify the regeneration of the activated carbon filter, the activated carbon filter can be connected to the environment via a conduit guided through the flange, and can be connected to the internal combustion engine of the automobile via the regeneration conduit. That contributes.

本発明は、数多くの実施態様を可能にする。本発明の基本原理を明瞭にするために、その中から１実施態様を図示し、以下に詳しく説明する。   The present invention enables numerous embodiments. In order to clarify the basic principle of the present invention, one embodiment is illustrated and described in detail below.

本発明による燃料タンクの概略的な断面図である。1 is a schematic cross-sectional view of a fuel tank according to the present invention. 図１に図示の燃料タンクの通気装置を、燃料フィードユニットと共に示す図である。It is a figure which shows the ventilation apparatus of the fuel tank shown in FIG. 1 with a fuel feed unit. 図１に図示の燃料タンクの、通気装置と活性炭フィルタとから成る構造ユニットを隣接する領域と共に示した概略的な断面図である。FIG. 2 is a schematic cross-sectional view of the fuel tank illustrated in FIG. 1, showing a structural unit including a ventilation device and an activated carbon filter together with adjacent regions.

図１は、自動車に用いられる、内燃機関（図示せず）に燃料を供給するための燃料タンク１を示している。この燃料タンク１は、燃料を捕集するための室２と、注入管片３とを有している。燃料タンク１内には、燃料フィードユニット４と、通気装置５とが配置されている。この通気装置５は、燃料フィードユニット４の近傍に配置された容器６と、燃料タンク１の主室２の側方領域に通じた通気管路７とを有している。通気管路７は、たとえば注入管片３に通じた別の通気管路（図示せず）を備えていてもよい。燃料フィードユニット４は、燃料タンク１の底部に対してプリロードをかけられていて、組付け開口８を閉じるフランジ９に支持されている。   FIG. 1 shows a fuel tank 1 for supplying fuel to an internal combustion engine (not shown) used in an automobile. The fuel tank 1 has a chamber 2 for collecting fuel and an injection pipe piece 3. A fuel feed unit 4 and a ventilation device 5 are disposed in the fuel tank 1. The venting device 5 includes a container 6 disposed in the vicinity of the fuel feed unit 4 and a vent pipe 7 communicating with a side region of the main chamber 2 of the fuel tank 1. The vent line 7 may be provided with another vent line (not shown) leading to the injection pipe piece 3, for example. The fuel feed unit 4 is preloaded on the bottom of the fuel tank 1 and is supported by a flange 9 that closes the assembly opening 8.

図２は、図１に示した燃料フィードユニット４を通気装置５の容器６と共に示す斜視図である。通気装置５の容器６は、燃料フィードユニット４に取り付けられていて、液面高さセンサ１０を保持している。さらに通気装置５の容器６は、環境周囲に通じた管路１１と、再生管路１２とを介してフランジ９に結合されている。この再生管路１２は、たとえば内燃機関の吸気管片（図示せず）にまで案内されている。   FIG. 2 is a perspective view showing the fuel feed unit 4 shown in FIG. 1 together with the container 6 of the ventilation device 5. The container 6 of the ventilation device 5 is attached to the fuel feed unit 4 and holds the liquid level sensor 10. Furthermore, the container 6 of the ventilation device 5 is coupled to the flange 9 via a pipe line 11 leading to the environment and a regeneration pipe line 12. The regeneration pipe 12 is guided to, for example, an intake pipe piece (not shown) of the internal combustion engine.

図３は、通気装置５の容器６の断面図であり、この容器６内には活性炭フィルタ１３が配置されている。これによってこの活性炭フィルタ１３と通気装置５とは、予組付け可能な１つの構造ユニットを形成している。この場合、この構造ユニットは、組付け開口８を通じて燃料タンク１内に挿入され得る。容器６内には、分離器１５と活性炭フィルタ１３とを分離するための隔壁１４が設けられている。分離器１５は、ガスから燃料を分離する。分離器１５は、サクションジェットポンプ１６を有している。このサクションジェットポンプ１６には、図１に示した燃料フィードユニット４から、フィルタ１７と逆止弁１８とを介して駆動媒体である燃料が供給される。サクションジェットポンプ１６は、分離器１５内に集められた燃料を燃料タンク１内へ圧送する。分離器１５は、弁１９を介して活性炭フィルタ１３に接続されている。弁１９は、ロール・オーバ・バルブとして形成されていて、自動車の横転時に、活性炭フィルタ１３と、この活性炭フィルタ１３から環境に通じている管路１１とを介して、燃料タンク１から燃料が流出することを阻止する。さらに弁１９は、スプラッシュガードバルブとして形成されており、たとえばカーブ走行時に、分離器１５に集められた燃料が動揺して活性炭フィルタ１３内に流入することを阻止する。さらに分離器１５と活性炭フィルタ１３との接続部には、再生弁２０が配置されている。活性炭フィルタ１３が再生されるときに、この再生弁２０を閉じることができる。さらに図３には、分離器１５と活性炭フィルタ１３とから成る構造ユニットの容器６が、フランジ９から間隔を置いて配置されていることが示されている。   FIG. 3 is a cross-sectional view of the container 6 of the ventilation device 5, and the activated carbon filter 13 is disposed in the container 6. Thus, the activated carbon filter 13 and the ventilation device 5 form one structural unit that can be pre-assembled. In this case, this structural unit can be inserted into the fuel tank 1 through the assembly opening 8. A partition wall 14 for separating the separator 15 and the activated carbon filter 13 is provided in the container 6. The separator 15 separates fuel from the gas. The separator 15 has a suction jet pump 16. The suction jet pump 16 is supplied with fuel as a drive medium from the fuel feed unit 4 shown in FIG. 1 via a filter 17 and a check valve 18. The suction jet pump 16 pumps the fuel collected in the separator 15 into the fuel tank 1. The separator 15 is connected to the activated carbon filter 13 via a valve 19. The valve 19 is formed as a roll-over valve, and when the vehicle rolls over, the fuel flows out from the fuel tank 1 through the activated carbon filter 13 and the conduit 11 communicating from the activated carbon filter 13 to the environment. To stop doing. Further, the valve 19 is formed as a splash guard valve, and prevents, for example, the fuel collected in the separator 15 from shaking and flowing into the activated carbon filter 13 when traveling on a curve. Further, a regeneration valve 20 is disposed at the connection portion between the separator 15 and the activated carbon filter 13. When the activated carbon filter 13 is regenerated, the regeneration valve 20 can be closed. Further, FIG. 3 shows that the container 6 of the structural unit comprising the separator 15 and the activated carbon filter 13 is arranged at a distance from the flange 9.

Claims (10)

自動車に用いられる燃料タンクであって、通気装置を有する、燃料を捕集するための室と、活性炭フィルタと、燃料を圧送するための燃料フィードユニットとが設けられていて、通気装置が、液状燃料とガスとを分離するための分離器を有している形式のものにおいて、分離器（１５）と活性炭フィルタ（１３）とが、１つの構造ユニットとして形成されており、該構造ユニットが、前記室（２）の内部に配置されていることを特徴とする、自動車に用いられる燃料タンク。   A fuel tank used in an automobile, having a ventilation device, provided with a chamber for collecting fuel, an activated carbon filter, and a fuel feed unit for pumping fuel, and the ventilation device is liquid In the type having a separator for separating fuel and gas, the separator (15) and the activated carbon filter (13) are formed as one structural unit, and the structural unit includes: A fuel tank used in an automobile, which is arranged inside the chamber (2). 分離器（１５）と活性炭フィルタ（１３）とから成る構造ユニットが、燃料フィードユニット（４）に取り付けられている、請求項１記載の燃料タンク。   2. The fuel tank according to claim 1, wherein the structural unit consisting of the separator (15) and the activated carbon filter (13) is attached to the fuel feed unit (4). 分離器（１５）と活性炭フィルタ（１３）とから成る構造ユニットが、１つの共通の容器（６）を有しており、該容器（６）が、活性炭フィルタ（１３）と分離器（１５）とを分離するための隔壁（１４）を有している、請求項１または２記載の燃料タンク。   The structural unit comprising the separator (15) and the activated carbon filter (13) has one common container (6), which container (6) comprises the activated carbon filter (13) and the separator (15). The fuel tank according to claim 1, further comprising a partition wall (14) for separating the fuel tank and the fuel tank. 分離器（１５）と活性炭フィルタ（１３）とが、弁（１９）を介して接続されており、該弁（１９）が、ロール・オーバ・バルブおよび／またはスプラッシュガードバルブとして形成されている、請求項１から３までのいずれか１項記載の燃料タンク。   The separator (15) and the activated carbon filter (13) are connected via a valve (19), which is formed as a roll over valve and / or a splash guard valve, The fuel tank according to any one of claims 1 to 3. 分離器（１５）が、前記室（２）の側方領域に案内された通気管路（７）に接続されている、請求項１から４までのいずれか１項記載の燃料タンク。   The fuel tank according to any one of claims 1 to 4, wherein the separator (15) is connected to a vent line (7) guided in a lateral region of the chamber (2). 分離器（１５）内に、サクションジェットポンプ（１６）が配置されており、該サクションジェットポンプ（１６）が、前記室（２）に開口している、請求項１から５までのいずれか１項記載の燃料タンク。   A suction jet pump (16) is arranged in the separator (15), and the suction jet pump (16) opens into the chamber (2). The fuel tank described in the item. 分離器（１５）と活性炭フィルタ（１３）とから成る構造ユニットが、燃料タンク（１）に設けられた組付け開口（８）を閉じるフランジ（９）から間隔を置いて配置されている、請求項１から６までのいずれか１項記載の燃料タンク。   A structural unit consisting of a separator (15) and an activated carbon filter (13) is arranged spaced from a flange (9) that closes an assembly opening (8) provided in the fuel tank (1). Item 7. The fuel tank according to any one of Items 1 to 6. 分離器（１５）と活性炭フィルタ（１３）とから成る構造ユニットに液面高さセンサ（１０）が配置されている、請求項１から７までのいずれか１項記載の燃料タンク。   The fuel tank according to any one of claims 1 to 7, wherein a liquid level sensor (10) is arranged in a structural unit comprising a separator (15) and an activated carbon filter (13). 分離器（１５）と活性炭フィルタ（１３）との接続部に、切換可能な再生弁（２０）が配置されており、該再生弁（２０）が、前記接続部の選択的な閉鎖および開放のために形成されている、請求項１から８までのいずれか１項記載の燃料タンク。   A switchable regeneration valve (20) is disposed at the connection between the separator (15) and the activated carbon filter (13), and the regeneration valve (20) selectively closes and opens the connection. The fuel tank according to claim 1, wherein the fuel tank is formed for the purpose. 活性炭フィルタ（１３）が、前記フランジ（９）を貫いて案内された管路（１１）を介して環境に接続可能であり、かつ再生管路（１２）によって自動車の内燃機関に接続可能である、請求項１から９までのいずれか１項記載の燃料タンク。   An activated carbon filter (13) can be connected to the environment via a conduit (11) guided through the flange (9) and can be connected to an internal combustion engine of a motor vehicle via a regeneration conduit (12). 10. A fuel tank according to any one of claims 1 to 9.
JP2009518876A 2006-07-11 2007-07-10 Fuel tank used in automobiles Expired - Fee Related JP5021738B2 (en)

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US20090321444A1 (en) 2009-12-31
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