US 11,655,942 B2
Waste hydrogen recovery device of evaluation device of hydrogen refueling station
A Eun Yoon, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Sep. 20, 2021, as Appl. No. 17/479,528.
Claims priority of application No. 10-2021-0031901 (KR), filed on Mar. 11, 2021.
Prior Publication US 2022/0290811 A1, Sep. 15, 2022
Int. Cl. F17C 7/00 (2006.01); F17C 13/04 (2006.01)
CPC F17C 7/00 (2013.01) [F17C 13/04 (2013.01); F17C 2205/0332 (2013.01); F17C 2221/012 (2013.01); F17C 2227/0157 (2013.01); F17C 2227/044 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0636 (2013.01); F17C 2260/035 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A waste hydrogen recovery device of an evaluation device of a hydrogen charging facility comprising:
a buffer container connected to a discharge pipeline of the evaluation device;
a flow path switching valve installed at a hydrogen supply side of the hydrogen charging facility and installed to selectively form a flow path flowing hydrogen from one of a hydrogen supply source or the buffer container into the hydrogen charging facility;
a tank protection valve installed at a junction between an inflow pipeline, the discharge pipeline and a hydrogen tank of the evaluation device; and
a controller provided to control the tank protection valve, a discharge valve installed on the discharge pipeline, the flow path switching valve, and a compressor of the hydrogen charging facility.