公开(公告)号：US20240178420A1

公开(公告)日：2024-05-30

申请号：US18498780

申请日：2023-10-31

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Seungwhan BAEK ,  Young Suk JUNG ,  Kwang Kun PARK ,  I Sang YU ,  Kie Joo CHO

IPC: H01M8/04746 ,  H01M8/04089

CPC classification number: H01M8/04753 ,  H01M8/04104 ,  H01M2250/20

Abstract: Provided is a pressure control device for a liquid hydrogen tank for a hydrogen fuel cell vehicle that includes a fuel cell, a battery, and a drive motor, wherein the liquid hydrogen tank includes a vacuum chamber, an inner chamber inside the vacuum chamber and storing liquid hydrogen therein, and a multi-layered insulation surrounding the inner chamber. The pressure control device includes a liquid hydrogen pump inside a liquid hydrogen section, an expansion valve located downstream of the liquid hydrogen pump, a heat exchanger located downstream of the expansion valve, a first flow path through which liquid hydrogen supplied from the liquid hydrogen pump passes through the heat exchanger and is sprayed into a gaseous hydrogen section, and a second flow path through which the liquid hydrogen supplied from the liquid hydrogen pump sequentially passes through the expansion valve and the heat exchanger and flows.