INNER SHELL FOR A PRESSURE VESSEL

• US 20090152278A1
• Filed: 12/14/2007
• Published: 06/18/2009
• Est. Priority Date: 12/14/2007
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Lindner, Markus
• Application Number:
  US11/956,863
• Publication Number:
  US 20090152278A1
• Time in Patent Office: Days
• US Class Current: 220/589
• CPC Class Codes: F17C 1/00 Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 ; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00
• CPC Class Codes: F17C 2201/0109 with exteriorly curved end-piece
• CPC Class Codes: F17C 2201/0123 with variable thickness or diameter
• CPC Class Codes: F17C 2203/0607 Coatings
• CPC Class Codes: F17C 2203/0619 with two layers
• CPC Class Codes: F17C 2203/0621 with three layers
• CPC Class Codes: F17C 2203/0636 Metals
• CPC Class Codes: F17C 2203/0639 Steels
• CPC Class Codes: F17C 2203/0646 Aluminium
• CPC Class Codes: F17C 2203/0648 Alloys or compositions of metals
• CPC Class Codes: F17C 2203/0656 in form of filaments
• CPC Class Codes: F17C 2203/066 Plastics
• CPC Class Codes: F17C 2203/0663 in form of fibers or filaments
• CPC Class Codes: F17C 2203/0685 flexible
• CPC Class Codes: F17C 2205/0305 Bosses, e.g. boss collars
• CPC Class Codes: F17C 2205/0397 on both sides of the pressure vessel
• CPC Class Codes: F17C 2209/2118 by injection
• CPC Class Codes: F17C 2209/2127 by blowing
• CPC Class Codes: F17C 2209/2145 by rotation
• CPC Class Codes: F17C 2209/2181 Metal working processes, e.g. deep drawing, stamping or cutting
• CPC Class Codes: F17C 2209/225 : Spraying
• CPC Class Codes: F17C 2223/0123 : gaseous, e.g. CNG, GNC
• CPC Class Codes: F17C 2223/0153 : Liquefied gas, e.g. LPG, GPL
• CPC Class Codes: F17C 2223/033 : Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2260/011 : Improving strength
• CPC Class Codes: F17C 2270/0184 : Fuel cells
• CPC Class Codes: H01M 2008/1095 : Fuel cells with polymeric electrolytes
• CPC Class Codes: H01M 8/04201 : Reactant storage and supply, e.g. means for feeding, pipes
• CPC Class Codes: Y02E 60/32 : Hydrogen storage
• CPC Class Codes: Y02E 60/50 : Fuel cells

Abstract

Disclosed is a vessel including an outer shell and an inner shell, the inner shell having spaced apart indentations formed therein to facilitate a thermal expansion and contraction of the inner shell to militate against failure thereof.

Claims

1. A vessel comprising:

a hollow inner shell adapted to store a fluid, said inner shell having a plurality of indentations formed in an outer wall thereof; and

an outer shell formed around said inner shell and forming a plurality of cavities between said inner shell and said outer shell adjacent the indentations.

2. The vessel of claim 1, further comprising a first boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

3. The vessel of claim 2, further comprising a second boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

4. The vessel of claim 1, wherein the indentations are annular channels.

5. The vessel of claim 1, wherein the indentations are concave recesses.

6. The vessel of claim 1, wherein said outer shell is formed by a filament winding process.

7. The vessel of claim 1, wherein said inner shell is formed by one of a rotational molding process and a blow molding process.

8. The vessel of claim 1, wherein said inner shell is formed from one of a polymer, aluminum, and steel.

9. A vessel comprising:

a hollow inner shell adapted to store a fluid, said inner shell having a plurality of indentations formed in an outer wall thereof;

an outer shell formed around said inner shell and forming a plurality of cavities between said inner shell and said outer shell adjacent the indentations; and

a first boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

10. The vessel of claim 9, further comprising a second boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

11. The vessel of claim 9, wherein the indentations are annular channels.

12. The vessel of claim 9, wherein the indentations are concave recesses.

13. The vessel of claim 9, wherein said outer shell is formed by a filament winding process.

14. The vessel of claim 9, wherein said inner shell is formed by one of a rotational molding process and a blow molding process.

15. The vessel of claim 9, wherein said inner shell is formed from one of a polymer, aluminum, and steel.

16. A vessel comprising:

a hollow inner shell adapted to store a fluid, said inner shell having a plurality of annular channels formed in an outer wall thereof;

an outer shell formed around said inner shell and forming a plurality of cavities between said inner shell and said outer shell adjacent the indentations.

17. The vessel of claim 16, further comprising a first boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

18. The vessel of claim 17, further comprising a second boss adhered to said inner shell and forming a substantially fluid tight seal therebetween.

19. The vessel of claim 16, wherein said inner shell is formed by one of a rotational molding process and a blow molding process.

20. The vessel of claim 16, wherein said outer shell is formed by a filament winding process.