公开(公告)号：US11879592B2

公开(公告)日：2024-01-23

申请号：US17286046

申请日：2019-09-12

Applicant: JAPAN STEEL WORKS M&E, INC. ,  TOKYO DENKI UNIVERSITY

Inventor： Takafumi Hosoya ,  Yoru Wada ,  Hirokazu Tsuji

IPC: F17C1/00 ,  F17C13/06

CPC classification number: F17C1/005 ,  F17C13/06 ,  F17C2201/0109 ,  F17C2201/035 ,  F17C2205/0305 ,  F17C2221/012 ,  F17C2223/036 ,  F17C2270/01

Abstract: A gas pressure vessel capable of performing processing of removing wrinkles on an inner surface of a dome part and preventing cracking starting from a root of a thread of a neck part is provided. In a gas pressure vessel according to one embodiment, a dome part (12) has an opening whose diameter is 90 mm or greater, and the innermost root of the thread in a female thread part (10a) into which a lid (20) is screwed is provided inside an imaginary plane (B) formed by extending an outer surface of the dome part (12) toward an opening.

公开(公告)号：US12007071B2

公开(公告)日：2024-06-11

申请号：US17282371

申请日：2019-09-12

Applicant: JAPAN STEEL WORKS M&E, INC.

Inventor： Yoru Wada ,  Takafumi Hosoya ,  Hironobu Arashima

IPC: F17C13/06 ,  F17C1/10 ,  F17C13/04

CPC classification number: F17C13/06 ,  F17C1/10 ,  F17C13/04 ,  F17C2201/0119 ,  F17C2201/035 ,  F17C2205/0311 ,  F17C2205/0332 ,  F17C2205/0335 ,  F17C2221/012 ,  F17C2260/037 ,  F17C2260/053

Abstract: A hydrogen pressure vessel capable of preventing hydrogen-induced cracking of a cylinder is provided. In a hydrogen pressure vessel according to one embodiment, a gap part (G) in which an inner peripheral surface of a cylinder (10) is spaced apart from an outer peripheral surface of a lid (20) is provided between a female thread part (10a) of the cylinder (10) into which the lid (20) is screwed, and a resin seal member (30), and the cylinder (10) includes a first through hole (41) for discharging gas in the gap part (G) into a relief pipe (51) and a second through hole (42) for introducing gas containing oxygen into the gap part (G) formed therein.