RECEPTACLE CHECK VALVE FOR REFUELING HYDROGEN

WIPO Patent Application WO/2022/234928

A1

Provided is a receptacle check valve for refueling hydrogen that improves low-pressure airtight performance with a simple structure and reduces noise and deformation due to chattering in a low-pressure section of a hydrogen tank. To this end, the receptacle check valve for refueling hydrogen according to the present invention comprises: a first body having a first internal flow path extending from one end to the other end; a second body having a second internal flow path extending from one end to the other end and having one end that is inserted into the first internal flow path through the other end of the first body to be coupled to the first body; a sealing member disposed in the first internal flow path to seal between the inner circumferential surface of the first body and one end of the second body and having a third internal flow path extending from one end to the other end that guides hydrogen introduced into the first internal flow path to the second internal flow path; an elastic member disposed in the second internal flow path; and a valve member supported by the elastic member and movably disposed in the second internal flow path and having a valve portion formed at an end thereof, wherein a valve part is inserted into the third internal flow path through the other end of the sealing member to open and close the third internal flow path.

HONG SUNG JONG (KR)
HONG JIN YONG (KR)
LEE IK HEE (KR)
PARK SHIN KYU (KR)
KIM CHI SU (KR)
KIM JEONG KWON (KR)

PCT/KR2022/001521

November 10, 2022

January 27, 2022

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NAMYANG NEXMO CO LTD (KR)

B60K15/03; F16K15/02

KR20160056814A	2016-05-20
JP2014194231A	2014-10-09
KR101907886B1	2018-10-17
KR20180079436A	2018-07-10
US20100108162A1	2010-05-06

SUAN INTELLECTUAL PROPERTY (KR)

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