公开(公告)号：US20240353070A1

公开(公告)日：2024-10-24

申请号：US18475198

申请日：2023-09-26

Applicant: UNICK CORPORATION

Inventor： Eui-Dong Roh ,  Jung-Tae Kim ,  Ji-Yong Lee ,  Seung-Beom Lee ,  Kwang-Yeol Jeong ,  Ha-Na Kim ,  Jea-Hyuck Lee ,  Sang-Ho Lee

IPC: F17C13/04 ,  F16K15/18 ,  F16K31/06

CPC classification number: F17C13/04 ,  F16K15/18 ,  F16K31/06

Abstract: A valve assembly for controlling charging and discharging of a fuel prevents a high pressure charging pressure from being applied to a solenoid valve during fuel charging. The valve assembly includes a transfer flow passage composed of: a charging/discharging flow passage; a charging flow passage branched from the charging/discharging flow passage and connected to a storage tank; and a discharging flow passage branched from the charging/discharging flow passage and connected to the storage tank. Further, the valve assembly includes a first check valve configured to prevent backflow of the fuel transferred along the charging flow passage; a solenoid valve configured to open or close the discharging flow passage to regulate flow of the fuel; a second check valve configured to prevent backflow of the fuel transferred along the discharging flow passage; and a metering valve configured to control a flow rate of the fuel transferred along the discharging flow passage.