US 12,007,071 B2
Hydrogen pressure vessel
Yoru Wada, Tokyo (JP); Takafumi Hosoya, Muroran (JP); and Hironobu Arashima, Muroran (JP)
Assigned to Japan Steel Works M&E, Inc., Muroran (JP)
Appl. No. 17/282,371
Filed by JAPAN STEEL WORKS M&E, INC., Muroran (JP)
PCT Filed Sep. 12, 2019, PCT No. PCT/JP2019/035968
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/071088, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 2018-187193 (JP), filed on Oct. 2, 2018.
Prior Publication US 2021/0348724 A1, Nov. 11, 2021
Int. Cl. F17C 13/06 (2006.01); F17C 1/10 (2006.01); F17C 13/04 (2006.01)
CPC F17C 13/06 (2013.01) [F17C 1/10 (2013.01); F17C 13/04 (2013.01); F17C 2201/0119 (2013.01); F17C 2201/035 (2013.01); F17C 2205/0311 (2013.01); F17C 2205/0332 (2013.01); F17C 2205/0335 (2013.01); F17C 2221/012 (2013.01); F17C 2260/037 (2013.01); F17C 2260/053 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hydrogen pressure vessel comprising:
a cylinder filled with hydrogen and integrally formed as a single piece, a portion of an opening end of the cylinder being threaded;
a lid screwed into the threaded portion of the cylinder;
a circular resin seal member provided between an inner circumferential surface of the cylinder and an outer circumferential surface of the lid;
a gap part formed between the inner circumferential surface of the cylinder and the outer circumferential surface of the lid, the gap part being provided between the threaded portion of the cylinder and the resin seal member such that the gap part communicates with threads of the threaded portion of the cylinder; and
a first through hole for discharging gas in the gap part to a relief pipe and a second through hole for introducing gas including oxygen into the gap part formed in the cylinder.