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JP2018021668A - Fuel reservoir - Google Patents

Fuel reservoir Download PDF

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Publication number
JP2018021668A
JP2018021668A JP2017151725A JP2017151725A JP2018021668A JP 2018021668 A JP2018021668 A JP 2018021668A JP 2017151725 A JP2017151725 A JP 2017151725A JP 2017151725 A JP2017151725 A JP 2017151725A JP 2018021668 A JP2018021668 A JP 2018021668A
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Japan
Prior art keywords
individual
fuel reservoir
individual volume
volumes
volume
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Granted
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JP2017151725A
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Japanese (ja)
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JP6971693B2 (en
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ヴェーバー カイ
Weber Kay
ヴェーバー カイ
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Robert Bosch GmbH
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Robert Bosch 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
    • B60K15/073—Tank construction specially adapted to the vehicle
    • 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
    • B60K15/03006—Gas tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • 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
    • B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
    • B60K2015/03144—Fluid connections between the tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0128—Shape spherical or elliptical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0166—Shape complex divided in several chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0171—Shape complex comprising a communication hole between chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/014—Suspension means
    • F17C2203/015—Bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2181—Metal working processes, e.g. deep drawing, stamping or cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

【課題】本発明は、自動車に設けられる、特に圧力下にある燃料リサーバに関する。【解決手段】燃料リサーバ１０は、複数の球状の個別容積１５を有しており、これらの個別容積１５は、接続導管１６，１７，１８，２０により互いに接続されている。【選択図】図１The present invention relates to a fuel reservoir, particularly under pressure, provided in an automobile. A fuel reservoir includes a plurality of spherical individual volumes, and these individual volumes are connected to each other by connecting conduits. [Selection] Figure 1

Description

背景技術
本発明は、請求項１の上位概念に記載の燃料リザーバに関する。 The invention relates to a fuel reservoir according to the superordinate concept of claim 1.

ガス状の燃料を自動車に貯蔵する場合、燃料の圧力は典型的には２００ｂａｒ〜７００ｂａｒであり、一般に、炭素繊維強化プラスチックから成る燃料リザーバが使用される。このような、通常は常に円筒状に形成される燃料リザーバが有する利点は、高い圧力に耐え、したがって安全上の理由から必要とされる衝突テストをクリアしている、という点にある。さらに前記燃料リザーバは、比較的小さな重量をも有している。このような、炭素繊維強化プラスチックから成る燃料リザーバにおける欠点は、その比較的高い製造費にある。この燃料リザーバの製造には比較的手間がかかり、通常は全くまたは僅かな部分しか自動化することができないからである。   When storing gaseous fuel in an automobile, the fuel pressure is typically 200-700 bar, and a fuel reservoir made of carbon fiber reinforced plastic is generally used. The advantage of such a fuel reservoir, which is usually formed in a cylindrical shape, is that it withstands high pressures and thus clears the crash test required for safety reasons. Further, the fuel reservoir has a relatively small weight. A disadvantage of such a fuel reservoir made of carbon fiber reinforced plastic is its relatively high production cost. This is because the production of this fuel reservoir is relatively time consuming and can usually be automated at all or only in small parts.

よって、独国特許出願公開第１０２５９２０４号明細書から公知となっている、請求項１の上位概念に記載の燃料リザーバは、１つの接続管路により互いに接続された、複数の球状の個別容積を有している。このような球状の、金属から成る個別容積は、比較的廉価な製造費において所要の耐圧性を有していると共に、それぞれ異なる直径に基づき取付け状況に応じて、比較的自由にその時々の取付け場所に適合可能である、という利点を有している。これに関して前記文献で提案されているのは、燃料リザーバを、例えば個別容積に対応した凹凸を有する２つの金属薄板から形成する点である。これらの薄板は、互いに結合もしくは溶接される。さらに、各個別容積間の中間領域には、接続通路の形態の複数の接続管路がスタンピング若しくは形成されている。その時々の取付け空間に適合させるために、個別容積は、それぞれ異なる大きさを有していてもよく、かつ／または個別容積間の接続領域の変形を介して、互いに所望の相互配置にもたらすことができるようになっている。この場合の欠点は、このような燃料リザーバの製造には、比較的高価な（深絞り）工具が必要となる一方で、さらに、個別容積および接続管路の周りの、燃料の貯蔵用には供されない金属薄板の材料に基づき、燃料リザーバが比較的大きな重量を有しており、貯蔵容積が未だ最適化されていない点にある。   Thus, the fuel reservoir according to the superordinate concept of claim 1, which is known from DE-A-10259204, has a plurality of spherical individual volumes connected to each other by a single connecting line. Have. Such a spherical individual volume made of metal has the required pressure resistance at a relatively low manufacturing cost, and it can be mounted relatively freely according to the installation situation based on different diameters. It has the advantage of being adaptable to the location. In this regard, what is proposed in the document is that the fuel reservoir is formed from two thin metal plates having irregularities corresponding to individual volumes, for example. These thin plates are bonded or welded together. Furthermore, a plurality of connecting pipes in the form of connecting passages are stamped or formed in the intermediate region between the individual volumes. In order to adapt to the current installation space, the individual volumes may have different sizes and / or be brought into the desired mutual arrangement with one another via deformation of the connection area between the individual volumes. Can be done. The disadvantage in this case is that the production of such a fuel reservoir requires relatively expensive (deep drawing) tools, while also for the storage of fuel around individual volumes and connecting lines. Based on the material of the sheet metal that is not provided, the fuel reservoir has a relatively large weight and the storage volume has not yet been optimized.

発明の開示
請求項１記載の特徴を有する燃料リザーバは、特に低い重量を有しており、かつ異なる取付け状況に、特に簡単に適合可能である、という利点を有している。 DISCLOSURE OF THE INVENTION A fuel reservoir having the features of claim 1 has the advantage that it has a particularly low weight and is particularly easily adaptable to different mounting situations.

これに関して本発明は、燃料リザーバを、それぞれ別個の構成部材として形成された複数の個別容積から形成することが有意であると想定している。これらの個別容積もやはり、同じく別個の構成部材として形成された１つの接続導管により互いに連結されている、もしくは互いに流体接続されており、接続導管は、各個別容積の開口の範囲で、摩擦接続的または材料接続的な結合により、各個別容積と結合されている。このように、燃料リザーバを本発明に基づいて形成することにより、比較的高価な工具を使用する必要なしに、個別容積および接続導管の任意の配置形式を実現することが可能になる。例えば特に簡単に、それぞれ異なる容積もしくは大きさを有する個別容積を互いに接続することができ、この場合、各個別容積間に配置された接続導管もやはり、例えば異なる長さまたは直径または角度を有していてもよく、これにより、各用途に最適化された燃料リザーバを形成することができる。さらに、本発明に基づき燃料リザーバを形成することにより、各個別容積を、その時々の用途に関して例えば可能な限り高い強度または特定の材料を考慮して、製造技術的に最適化された形状で形成することができると共に、（最適化された）個別容積を、例えば個別容積とは異なる材料から成る、やはり最適化された接続導管と連結することが可能になる。この場合に重要なのは、個別容積が接続導管と、摩擦接続式および／または材料接続式の結合により耐圧式に結合され得る、ということだけであるに過ぎない。   In this regard, the present invention contemplates that it is significant to form the fuel reservoir from a plurality of individual volumes each formed as a separate component. These individual volumes are also connected to one another by one connecting conduit, which is also formed as a separate component, or fluidly connected to each other, the connecting conduits being frictionally connected in the region of the opening of each individual volume. It is connected to each individual volume by a mechanical or material connection. Thus, the formation of the fuel reservoir according to the invention makes it possible to realize any arrangement of individual volumes and connecting conduits without having to use relatively expensive tools. For example, it is particularly easy to connect individual volumes, each having a different volume or size, in which case the connecting conduits arranged between the individual volumes also have, for example, different lengths or diameters or angles. This can form a fuel reservoir that is optimized for each application. Furthermore, by forming a fuel reservoir according to the invention, each individual volume is formed in a shape that is optimized in terms of manufacturing technology, taking into account the highest possible strength or specific material for the particular application, for example. And it is possible to couple the (optimized) individual volume with an optimized connection conduit, for example made of a material different from the individual volume. All that is important in this case is that the individual volumes can be connected to the connecting conduits in a pressure-resistant manner by means of a friction connection and / or a material connection.

本発明による燃料リザーバの有利な改良は、各従属請求項に記載されている。   Advantageous refinements of the fuel reservoir according to the invention are described in the respective dependent claims.

個別容積と接続導管との間の最適化された結合は、接続導管が個別容積を横断しており、かつ２つの開口の範囲で個別容積に結合されている場合に得られ、この場合、接続導管は、個別容積の内部に燃料用の流出開口を有している。このような実施形態により、個々の個別容積を数珠状に横断する、特に比較的長い一体の接続導管を使用することが可能になる。   An optimized connection between the individual volume and the connecting conduit is obtained when the connecting conduit crosses the individual volume and is connected to the individual volume in the range of two openings, in this case the connection The conduit has an outlet opening for fuel inside the individual volume. Such an embodiment makes it possible to use a particularly long, integral connecting conduit that traverses individual individual volumes in a beaded manner.

接続導管と個別容積との間に、特に材料接続的な結合部を形成するため、また摩擦接続的な結合部を形成する場合の圧力に対するシール性を保証するために有利なのは、個別容積と接続導管とが、同じ種類の材料、特に鋼から成っている、もしくは類似の熱膨張係数を有している場合である。   In order to form a joint connecting the material between the connecting conduit and the individual volume, in particular in order to ensure a sealing performance against the pressure when forming a frictional connection, it is advantageous to connect the individual volume to the individual volume. The conduit is made of the same kind of material, in particular steel, or has a similar coefficient of thermal expansion.

さらに、所定の取付け空間が存在する場合に可能な貯蔵容積を最適化するためには、各個別容積が少なくとも２つの異なる直径を有していると、特に有利である。これにより、例えば取付け空間の、比較的小さな高さを有する領域には、比較的小さな直径を有する個別容積が用いられることで、取付け空間の複数の領域を燃料リザーバ用に利用することができる。   Furthermore, it is particularly advantageous if each individual volume has at least two different diameters in order to optimize the possible storage volume in the presence of a given installation space. Thereby, for example, in a region having a relatively small height in the mounting space, a plurality of regions in the mounting space can be used for the fuel reservoir by using an individual volume having a relatively small diameter.

さらに、強度を最適化するため、もしくは接続導管と個別容積との間の２つの結合箇所を、最大限に相互間隔をあけて配置することができるようにするためには、接続導管が個別容積の中心を横断することが想定されている。   Furthermore, in order to optimize the strength or to allow the two coupling points between the connecting conduit and the individual volume to be maximally spaced apart from each other, the connecting conduit has an individual volume. It is assumed to cross the center of

その時々の取付け空間に対する個々の個別容積の取付け位置を最適化する、もしくは適合させるためには、接続導管が、各個別容積の間で少なくとも部分的に曲げられて形成されている、ということが想定されていてもよい。択一的または付加的に、燃料リザーバの構成高さを減少させるために互いにずらされて配置された個別容積が複数層設けられている、ということが想定されていてもよい。   In order to optimize or adapt the mounting position of the individual individual volumes with respect to the current mounting space, the connecting conduits are formed at least partially bent between the individual volumes. It may be assumed. Alternatively or additionally, it may be envisaged that there are a plurality of layers of individual volumes that are offset from one another in order to reduce the construction height of the fuel reservoir.

特に、多数の個別容積から成る燃料リザーバの比較的簡単な取扱いを可能にするためには、個別容積が部分的に、好適には接着結合により互いに直接に結合されている、ということが想定されている。このような接着結合は、燃料リザーバを全体的に見て、個々の個別容積が相互に動くもしくはずれることなく、比較的簡単に車両に取り付けることができる、ということを可能にする。さらに、衝突が起こった場合には、衝突時の安全性を最適化するために、各個別容積間が比較的容易に分離される。   In particular, it is envisaged that the individual volumes are partly connected directly to each other, preferably by adhesive bonding, in order to allow a relatively simple handling of a fuel reservoir consisting of a large number of individual volumes. ing. Such an adhesive bond allows the fuel reservoir as a whole to be mounted on the vehicle relatively easily without the individual individual volumes moving or shifting relative to each other. Furthermore, in the event of a collision, the individual volumes are relatively easily separated in order to optimize safety during the collision.

各取付け場所に燃料リザーバを最適に適合させるための別の構造上の構成は、複数の接続導管が１つの集合導管から出発していることを想定したものであり、この場合、各接続導管はそれぞれ、個別容積の所定の部分量に対応して配置され、これらに結合されている。このような構成は特に、接続導管の数もしくは長さ、ひいては重量をも最小にし、個別容積をより迅速に充填するもしくは空にすることを可能にする。   Another structural configuration for optimally fitting the fuel reservoir to each mounting location assumes that multiple connecting conduits start from a single collecting conduit, where each connecting conduit is Each of them is arranged corresponding to a predetermined partial amount of the individual volume and coupled to them. Such an arrangement in particular makes it possible to minimize the number or length of the connecting conduits and thus also the weight and to fill or empty the individual volumes more quickly.

本発明の別の利点、特徴および詳細は、以下の好適な実施例の説明ならびに図面につき明らかである。   Further advantages, features and details of the present invention are apparent from the following description of the preferred embodiment and the drawings.

それぞれ複数の個別容積を備えた３つの層から成る燃料リザーバの簡略化された縦断面図であって、この場合、燃料リザーバの個々の層は、１つの集合導管を介して互いに接続されている。FIG. 2 is a simplified longitudinal section of a three-layer fuel reservoir, each with a plurality of individual volumes, where the individual layers of the fuel reservoir are connected to one another via one collecting conduit . 多数の個別容積から成る燃料リザーバの１つの配置形式を示す斜視図である。It is a perspective view which shows one arrangement | positioning type of the fuel reservoir which consists of many separate volumes.

同一部材もしくは同一機能を有する部材には、図中、同一符号を付してある。   The same members or members having the same function are denoted by the same reference numerals in the drawings.

図１に示す燃料リザーバ１０は、自動車内にガス状の燃料、例えば水素を貯蔵するためのタンクとして用いられる。ただし本発明は、ガス状の燃料として水素を使用すること、ならびに自動車での使用に限定されるものではない。   A fuel reservoir 10 shown in FIG. 1 is used as a tank for storing gaseous fuel, for example, hydrogen, in an automobile. However, the present invention is not limited to the use of hydrogen as a gaseous fuel and the use in automobiles.

特に燃料リザーバ１０は、２００ｂａｒ〜７００ｂａｒの圧力下でガス状の燃料を貯蔵するように形成されている。燃料リザーバ１０は、例えば互いに平行に配置された３つの層１１，１２および１３を有しており、この場合、層１１〜１３はそれぞれ、ガス状の燃料を貯蔵するための、中空球状に形成された複数の個別容積１５を有している。例えば、外側の２つの層１１および１３の個別容積１５は、真ん中の層１２の個別容積１５の直径ｄ２よりもやや大きな直径ｄ１を有しており、この場合、外側の２つの層１１および１３の個別容積１５は互いに整列するように配置されているのに対し、真ん中の層１２の個別容積１５は、燃料リザーバ１０の所要スペースを最小にするために、それぞれ外側の層１１，１３の個別容積１５の間にずらされて配置されている。層１１〜１３の個別容積１５は、それぞれ接着結合部１９を介して互いに結合されている。 In particular, the fuel reservoir 10 is configured to store gaseous fuel under a pressure of 200 bar to 700 bar. The fuel reservoir 10 has, for example, three layers 11, 12 and 13 arranged in parallel to each other. In this case, the layers 11 to 13 are each formed in a hollow sphere for storing gaseous fuel. And have a plurality of individual volumes 15. For example, the individual volumes 15 of the outer two layers 11 and 13 have a diameter d 1 slightly larger than the diameter d 2 of the individual volume 15 of the middle layer 12, in this case the outer two layers 11. And the individual volumes 15 of 13 are arranged in alignment with each other, while the individual volumes 15 of the middle layer 12 are respectively arranged on the outer layers 11, 13 in order to minimize the required space of the fuel reservoir 10. The individual volumes 15 are shifted and arranged. The individual volumes 15 of the layers 11 to 13 are respectively coupled to each other via adhesive bonding portions 19.

個別容積１５は、好適には鋼から成っていて、従来技術から周知の、一方では個別容積１５を比較的経済的に製造することができ、かつ他方では所要の耐圧性を保証する製造方法により形成されている。   The individual volume 15 is preferably made of steel and is known from the prior art, on the one hand by means of a production method which allows the individual volume 15 to be produced relatively economically and on the other hand to guarantee the required pressure resistance. Is formed.

各層１１〜１３の個別容積１５は、管として形成された接続導管１６〜１８にそれぞれ接続、特に流体接続されており、接続導管１６〜１８もやはり、１つの集合導管２０に接続されている、もしくは接続導管１６〜１８は、１つの集合導管２０を起点としている。集合導管２０の直径（内径）は、例えば接続導管１６〜１８の直径（内径）よりも大きくてもよい。図示の実施例では、個別の層１１〜１３が形成されていることに基づき、接続導管１６〜１８は互いに平行に配置されていると共に、それぞれ直線的に形成されている。集合導管２０および接続導管１６〜１８を介して、燃料の、個別容積１５への充填および個別容積１５からの取出しが行われる。   The individual volumes 15 of each layer 11-13 are respectively connected, in particular fluidly connected, to connecting conduits 16-18 formed as tubes, which are also connected to a single collecting conduit 20, Alternatively, the connection conduits 16 to 18 start from one collecting conduit 20. The diameter (inner diameter) of the collecting conduit 20 may be larger than the diameter (inner diameter) of the connecting conduits 16 to 18, for example. In the illustrated embodiment, the connection conduits 16-18 are arranged parallel to each other and are each formed linearly, based on the formation of the individual layers 11-13. The fuel is charged into and removed from the individual volume 15 via the collecting conduit 20 and the connecting conduits 16 to 18.

接続導管１６〜１８は、これらに対応配置された個別容積１５の真ん中若しくは中心を横断しており、この場合、接続導管１６〜１８は、１つの個別容積１５の入口範囲２１の領域において進入し、出口範囲２２の領域でこの個別容積１５から進出している。接続導管１６〜１８と、個別容積１５との間に耐圧性の結合部を形成するために、接続導管１６〜１８と、個別容積１５の、それぞれ開口もしくは円形の孔の形態で形成された各入口範囲２１もしくは出口範囲２２の領域との間の結合部は、材料接続的な結合（溶接結合）により、かつ／または例えばプレス嵌めの形態の、摩擦接続式の結合により形成されている。材料接続式の結合の場合には特に、接続導管１６〜１８は、個別容積１５と同じ種類の材料から成ることが想定されている。   The connecting conduits 16 to 18 traverse the middle or center of the individual volumes 15 arranged corresponding thereto, in which case the connecting conduits 16 to 18 enter in the region of the inlet region 21 of one individual volume 15. In the region of the exit range 22, the individual volume 15 is advanced. In order to form a pressure-resistant joint between the connecting conduits 16 to 18 and the individual volumes 15, each of the connecting conduits 16 to 18 and the individual volumes 15 formed in the form of openings or circular holes, respectively. The connection between the region of the inlet area 21 or the outlet area 22 is formed by a material connection connection (weld connection) and / or by a friction connection type connection, for example in the form of a press fit. In particular in the case of material-connected bonds, it is envisaged that the connecting conduits 16 to 18 are made of the same type of material as the individual volume 15.

各接続導管１６〜１８はそれぞれ、各個別容積１５の内部に、ガス状の燃料用の少なくとも１つの流出開口２５を有しており、この場合、流出開口２５は、例えば各個別容積１５の中心に配置されている。   Each connecting conduit 16-18 has at least one outflow opening 25 for gaseous fuel inside each individual volume 15, where the outflow opening 25 is, for example, the center of each individual volume 15. Is arranged.

図２には、燃料リザーバ１０ａが角柱状に形成された取付け空間１００内に配置されているケースが示されている。燃料リザーバ１０と同様、燃料リザーバ１０ａも、異なる大きさもしくは容積、または少なくとも部分的に同じ容積を有していてもよい多数の個別容積１５から成っている。個別容積１５は、単一の接続導管３０により互いに接続されており、接続導管３０は、取付け空間１００内で各個別容積１５を接続するために、湾曲部、屈曲部または類似の幾何学形状的な変形部を備えて形成されていてもよく、これにより、取付け空間１００内で異なる位置に配置された各個別容積１５を互いに接続することができるようになっている。さらに、取付け空間１００内で接続導管３０から、図１に示した燃料リザーバ１０に相応してやはり複数の個別容積１５の部分量と連結もしくは結合された、複数の個別の導管が分岐していることが想定されていてもよい。   FIG. 2 shows a case where the fuel reservoir 10a is disposed in a mounting space 100 formed in a prismatic shape. Like the fuel reservoir 10, the fuel reservoir 10a consists of a number of individual volumes 15 that may have different sizes or volumes, or at least partially the same volume. The individual volumes 15 are connected to each other by a single connecting conduit 30, which connects the individual volumes 15 within the mounting space 100, such as a bend, a bend or a similar geometric shape. Each of the individual volumes 15 disposed at different positions in the mounting space 100 can be connected to each other. In addition, a plurality of individual conduits branch off from the connection conduit 30 in the mounting space 100, which are also connected or coupled to a partial quantity of the plurality of individual volumes 15 corresponding to the fuel reservoir 10 shown in FIG. It may be assumed.

ここまで説明してきた燃料リザーバ１０，１０ａは、本発明の思想から逸脱することなく多様に変化もしくは変更可能である。   The fuel reservoirs 10 and 10a described so far can be variously changed or changed without departing from the concept of the present invention.

Claims (10)

自動車に設けられる、特に圧力下にあるガス状の燃料用の燃料リザーバ（１０，１０ａ）であって、複数の球状の個別容積（１５）を有しており、これらの個別容積（１５）は、接続導管（１６，１７，１８，２０；３０）により互いに接続されている、燃料リザーバ（１０，１０ａ）において、
前記個別容積（１５）と前記接続導管（１６，１７，１８，２０；３０）とは、互いに別個の構成部材として形成されており、前記接続導管（１６，１７，１８，２０；３０）は、前記個別容積（１５）の開口（２１，２２）の範囲で、摩擦接続的または材料接続的な結合により、各前記個別容積（１５）と結合されていることを特徴とする、燃料リザーバ。 A fuel reservoir (10, 10a) for a gaseous fuel, in particular under pressure, provided in a motor vehicle, having a plurality of spherical individual volumes (15), these individual volumes (15) being In the fuel reservoir (10, 10a), which are connected to each other by connecting conduits (16, 17, 18, 20; 30),
The individual volume (15) and the connecting conduit (16, 17, 18, 20; 30) are formed as separate components, and the connecting conduit (16, 17, 18, 20; 30) A fuel reservoir, characterized in that it is connected to each individual volume (15) in a range of openings (21, 22) of the individual volume (15) by frictional connection or material connection. 前記接続導管（１６，１７，１８；３０）は、前記各個別容積（１５）を横断しており、かつ２つの前記開口（２１，２２）の範囲で前記各個別容積（１５）に結合されており、前記接続導管（１６，１７，１８；３０）は、前記個別容積（１５）の内部に流出開口（２５）を有している、請求項１記載の燃料リザーバ。   The connecting conduit (16, 17, 18; 30) traverses each individual volume (15) and is coupled to each individual volume (15) in the range of two openings (21, 22). The fuel reservoir according to claim 1, wherein the connecting conduit (16, 17, 18; 30) has an outflow opening (25) inside the individual volume (15). 前記個別容積（１５）と前記接続導管（１６，１７，１８，２０；３０）とは、同じ種類の材料、特に鋼から成っている、請求項１または２記載の燃料リザーバ。   3. The fuel reservoir according to claim 1, wherein the individual volume (15) and the connecting conduit (16, 17, 18, 20; 30) are made of the same type of material, in particular steel. 前記各個別容積（１５）は、それぞれ少なくとも２つの異なる直径（ｄ１，ｄ２）を有している、請求項１から３までのいずれか１項記載の燃料リザーバ。 The individual volume (15), each of the at least two different diameters (d 1, d 2) to have, any one fuel reservoir according to claims 1 to 3. 前記接続導管（１６，１７，１８；３０）は、前記個別容積（１５）の中心を横断している、請求項１から４までのいずれか１項記載の燃料リザーバ。   The fuel reservoir according to any one of claims 1 to 4, wherein the connecting conduit (16, 17, 18; 30) traverses the center of the individual volume (15). 前記接続導管（１６，１７，１８；３０）と前記個別容積（１５）との間の結合部は、溶接結合部またはプレス結合部として形成されている、請求項１から５までのいずれか１項記載の燃料リザーバ。   6. The connection according to claim 1, wherein the connection between the connecting conduit (16, 17, 18; 30) and the individual volume (15) is formed as a weld connection or a press connection. The fuel reservoir according to item. 前記接続導管（１６，１７，１８；３０）は、前記各個別容積（１５）の間で少なくとも部分的に曲げられて形成されている、請求項１から６までのいずれか１項記載の燃料リザーバ。   The fuel according to any one of the preceding claims, wherein the connecting conduit (16, 17, 18; 30) is formed at least partially bent between the individual volumes (15). Reservoir. 配置の構成高さを減少させるために互いにずらされて配置された個別容積（１５）が複数層（１１〜１３）設けられている、請求項１から７までのいずれか１項記載の燃料リザーバ。   The fuel reservoir according to any one of claims 1 to 7, wherein a plurality of layers (11 to 13) are provided with individual volumes (15) arranged offset from each other in order to reduce the height of the arrangement. . 前記個別容積（１５）は部分的に、好適には接着結合部（１９）により互いに直接に結合されている、請求項８記載の燃料リザーバ。   9. The fuel reservoir according to claim 8, wherein the individual volumes (15) are partly connected directly to each other, preferably by means of adhesive joints (19). 集合導管として形成された接続導管（２０）が設けられており、該接続導管（２０）からは、複数の接続導管（１６，１７，１８）が出発しており、これらの接続導管（１６，１７，１８）は、それぞれ前記各個別容積（１５）の所定の部分量に結合されている、請求項８または９記載の燃料リザーバ。   A connecting conduit (20) formed as a collecting conduit is provided, from which a plurality of connecting conduits (16, 17, 18) depart, and these connecting conduits (16, 16, 10. A fuel reservoir according to claim 8 or 9, wherein 17 and 18) are respectively coupled to a predetermined partial amount of each individual volume (15).
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