[특허]Light weight hydrogen tank

Hughes Electronics Corporation

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특허 상세정보

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Light weight hydrogen tank

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-090/02
미국특허분류(USC)	220/560.11; 220/560.1
출원번호	US-0963619 (2001-09-25)
발명자 / 주소	Rosen, Harold A. Wittmann, Alois Pano, Scott B.
출원인 / 주소	Hughes Electronics Corporation
인용정보	피인용 횟수 : 1 인용 특허 : 8

초록
▼

A light weight fuel tank for a hydrogen powered airplane used as a platform for communication repeaters for communication services. An outer spherical shell member of a sandwich configuration surrounds an inner thin walled spherical shell member in which the liquid hydrogen is contained. A radial gap between the shell members is evacuated to a high vacuum. The facing surfaces of the shell members are coated with a low emissivity material. Electrical heaters are provided to control the evaporation rate of the hydrogen to match the fuel usage and to preven...

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청구항
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1. A lightweight fuel tank comprising:an outer spherical shell member; an inner spherical shell member positioned inside said outer shell member; and said inner shell member and said outer shell member being positioned to provide an insulating radical gap between them a first port member in said outer shell member for evacuation of said radial gap to a vacuum, and to provide access for filling said inner shell member with hydrogen material; and a first heating mechanism on said outer shell member for controlling the rate of evaporation of material contained in said inner shell member; said inner shell member having an outer surface and an inner surface, said outer surface being coated with a low emissivity material; said outer shell member having an outer surface and an inner surface, said inner surface being coated with a low emissivity material. 2. The lightweight fuel tank as set forth in claim 1 comprising a second heating mechanism on said outer surface of said outer shell member for controlling icing of said fuel tank during use.3. The lightweight fuel tank as set forth in claim 1 wherein said outer shell member is a sandwich construction employing low heat conducting skin and core materials.4. The lightweight fuel tank as set forth in claim 1 wherein said low emissivity material is a flash a copper material.5. The lightweight fuel tank as set forth in claim 1 further comprising a second port member in said inner shell member for filling said inner shell member with a hydrogen material, said second port member having a valve mechanism.6. A stratospheric vehicle having a fuel tank, said fuel tank comprising:an outer spherical shell member; an inner spherical shell member positioned inside said outer shell member; said inner shell member and said outer shell member being positioned to provide an insulating radial gap between them; said inner shell member having an outer surface and an inner surface, said outer surface being coated with a low emissivity material; and said outer shell member having a sandwich construction with an inner skin member made of a lightweight metal material, an outer skin member made of a lightweight composite material, and a core member made of a low thermal conduction insulating material. 7. The stratospheric vehicle as set forth in claim 6 further comprising a first heating mechanism on said outer shell member for controlling the rate of evaporation of material contained in said inner shell member.8. The stratospheric vehicle as set forth in claim 7 comprising a second heating mechanism on said outer surface of said outer shell member for controlling icing of said fuel tank during use.9. The stratospheric vehicle as set forth in claim 6 wherein said inner skin member is an aluminum material, said outer skin member is a Kevlar material, and said core member is a low density foam material.10. The stratospheric vehicle as set forth in claim 6 wherein said inner shell member is made of an aluminum material and said outer shell member is made of a sandwich of titanium, Kevlar and Nomex materials.11. The stratospheric vehicle as set forth in claim 6 wherein said low emissivity material is a flash of copper material.12. The stratospheric vehicle as set forth in claim 6 wherein said inner skin member is coated with a low emissivity material.13. The stratospheric vehicle as set forth in claim 12 wherein said low emissivity material is copper.14. The stratospheric vehicle as set forth in claim 6 further comprising a first port member in said outer shell member for evacuation of said radial gap to a vacuum, and to provide access for filling said inner shell member with hydrogen material.15. The stratospheric vehicle as set forth in claim 14 further comprising a second port member in said inner shell member for filling said inner shell member with a hydrogen material, said second port member having a valve mechanism.16. The stratospheric vehicle as set forth in claim 6 wherein said inner and outer shell members are connected at three locations, namely two opposing equatorial external support positions and a port member.17. The stratospheric vehicle as set forth in claim 6 wherein said inner and outer shell members of different materials are connected by a friction welded insert member.18. A lightweight fuel tank comprising:an outer spherical shell member; an inner spherical shell member positioned inside said outer shell member; said inner shell member and said outer shell member being positioned to provide an insulating radial gap between them; a first heating mechanism on said outer shell member for controlling the rate of evaporation of material contained in said inner shell member; and a second heating mechanism on said outer shell member for controlling icing of said fuel tank during use. 19. The lightweight fuel tank as set forth in claim 18 further comprising a port member in said outer shell member for evacuation of said radial gap to a vacuum.20. The lightweight fuel tank as set forth in claim 18 further comprising a port member in said outer shell member for filling said inner shell member with hydrogen material.21. The lightweight fuel tank as set forth in claim 18 further comprising a coating of a low emissivity material on the outer surface of said inner shell member.22. The lightweight fuel tank as set forth in claim 18 further comprising a coating of a low emissivity material on the inner surface of said outer shell member.23. The lightweight fuel tank as set forth in claim 21 wherein said low emissivity material is a flash of a copper material.24. The lightweight fuel tank as set forth in claim 22 wherein said low emissivity material is a flash of a copper material.25. The lightweight fuel tank as set forth in claim 18 wherein said outer shell member is a sandwich construction employing a low heat conducting skin and core materials.26. The lightweight fuel tank as set forth in claim 18 wherein said outer shell member is a sandwich construction with an inner skin member made of a lightweight metal material, an outer skin member made of a lightweightcomposite material, and a core member made of a low thermal conduction insulation material.

이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 1

Hogenson,Peter A.; Chong,Keith; Duong,Peter. Cryogenic fuel tank insulation assembly. USP2007117296769.

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Light weight hydrogen tank

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 1

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Light weight hydrogen tank

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 1

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IPC 상세정보(version : 201201)

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