US 11,828,415 B2
Composite gas storage tank
Alexis Lambourne, Belper (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Aug. 10, 2021, as Appl. No. 17/398,174.
Claims priority of application No. 2013851 (GB), filed on Sep. 3, 2020.
Prior Publication US 2022/0065399 A1, Mar. 3, 2022
Int. Cl. F17C 1/16 (2006.01)
CPC F17C 1/16 (2013.01) [F17C 2201/0109 (2013.01); F17C 2203/0604 (2013.01); F17C 2203/066 (2013.01); F17C 2203/0619 (2013.01); F17C 2203/0663 (2013.01); F17C 2221/012 (2013.01); F17C 2223/036 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A composite gas storage tank comprising:
a composite wall defining a main storage volume and a hollow conduit portion communicating with and extending away from the main storage volume; and
a hollow coupling element, the hollow coupling element and the hollow conduit portion providing communication between the main storage volume and an exterior of the composite gas storage tank,
wherein a length portion of the hollow coupling element is embedded within a composite material of the hollow conduit portion of the composite wall and extends substantially parallel to the hollow conduit portion of the composite wall,
a remainder of a length of the hollow coupling element extends beyond the end of the hollow conduit portion remote from the main storage volume, and
the length portion of the hollow coupling element is completely embedded within the composite material of the hollow conduit portion of the composite wall, such that internal and external surfaces of the length portion of the hollow coupling element in a radial direction relative to an axis of the gas storage tank are both in contact with the composite material of the hollow conduit portion of the composite wall.