US 12,241,590 B2
End fitting for a pressurized fluid reservoir
Bjorn Criel, Brussels (BE)
Assigned to Plastic Omnium New Energies France, Lyons (FR)
Appl. No. 17/791,135
Filed by Plastic Omnium New Energies France, Lyons (FR)
PCT Filed Jan. 14, 2021, PCT No. PCT/EP2021/050637
§ 371(c)(1), (2) Date Jul. 6, 2022,
PCT Pub. No. WO2021/144335, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 2000328 (FR), filed on Jan. 14, 2020; and application No. 2002257 (FR), filed on Mar. 6, 2020.
Prior Publication US 2023/0046665 A1, Feb. 16, 2023
Int. Cl. F17C 1/06 (2006.01)
CPC F17C 1/06 (2013.01) [F17C 2201/0119 (2013.01); F17C 2201/056 (2013.01); F17C 2203/0604 (2013.01); F17C 2203/0607 (2013.01); F17C 2203/0619 (2013.01); F17C 2203/066 (2013.01); F17C 2203/067 (2013.01); F17C 2205/0305 (2013.01); F17C 2205/0326 (2013.01); F17C 2205/0341 (2013.01); F17C 2209/2154 (2013.01); F17C 2209/224 (2013.01); F17C 2209/234 (2013.01); F17C 2221/012 (2013.01); F17C 2221/033 (2013.01); F17C 2221/035 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/036 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0439 (2013.01); F17C 2250/0491 (2013.01); F17C 2260/012 (2013.01); F17C 2260/018 (2013.01); F17C 2270/0168 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pressurized fluid reservoir, comprising:
a liner comprising:
a tubular central portion provided with a first cylindrical outer surface having a first outer diameter D1,
a first neck connected to the tubular central portion by a first shoulder,
a first end fitting sealably assembled to the first neck,
a reinforcing enclosure of the liner,
wherein the first end fitting comprises an end portion provided with a second cylindrical outer surface positioned coaxially with the tubular central portion in a radially flush extension of the first cylindrical outer surface, and wherein the first end fitting is sealably assembled on an outside of the first neck of the liner by means of an annular sealing joint arranged coaxially with the end portion in an annular groove formed in an inner recess of the first end fitting so that an internal pressure of the reservoir has a tendency to push the neck radially outwards against the annular sealing joint.