Title:
CHECK VALVE FOR CRYOGENIC FLUID
Document Type and Number:
WIPO Patent Application WO/2022/177112
Kind Code:
A1
Abstract:
The present invention relates to a check valve for cryogenic fluid, which can be installed at, for example, the mouth of a pipe for injecting cryogenic hydrogen gas into a compressor cylinder in a hydrogen compressor. The check valve for cryogenic fluid according to an aspect of the present invention comprises: a valve body which is formed to have an inlet and an outlet open at both ends thereof; a valve seat which is formed inside the valve body to communicate with the inlet; a disk which is pivoted up and down at the upper end thereof about a pivot axis provided in the valve body to open and close the valve seat; and a sealing member which is made of a metal material shrinkable by cryogenic fluid introduced through the inlet, is provided in the circumferential direction of the valve seat, and when the disk closes the valve seat, is brought into close contact with the edge portion of the disk to produce sealing effects.
Inventors:
HAN SEUNGHO (KR)
KANG HYOLIM (KR)
PARK JUHYANG (KR)
HWANG HAESEONG (KR)
KANG HYOLIM (KR)
PARK JUHYANG (KR)
HWANG HAESEONG (KR)
Application Number:
PCT/KR2021/018517
Publication Date:
August 25, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
UNIV DONG A RES FOUND FOR IND ACAD COOP (KR)
International Classes:
F16K15/02; F16K31/00; F16K47/02
Foreign References:
| JPH1061798A | 1998-03-06 | |||
| US4513765A | 1985-04-30 | |||
| CN208703196U | 2019-04-05 | |||
| JPH11166638A | 1999-06-22 | |||
| KR20090004912U | 2009-05-22 |
Attorney, Agent or Firm:
OH, Wihwan (KR)
Download PDF: