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    • 97. 发明申请
    • DEVICE AND METHOD FOR FILLING CRYOGENIC TANKS
    • WO2022103940A1
    • 2022-05-19
    • PCT/US2021/058946
    • 2021-11-11
    • CHART INC.
    • GUSTAFSON, Erik
    • F17C6/00
    • A body structure includes an inlet port (15) that receives fluid from a delivery device, a first outlet port (12) that connects to a top-fill line in communication with a cryogenic tank, a second outlet port (13) that connects to a bottom-fill line in communication with a cryogenic tank and a slider tube cylinder (19). A cylinder housing (22) is connected to the body structure and has a pressure comparison cylinder with an upper volume (23) and a lower volume (27), with the latter in fluid communication with a cryogenic tank. A piston (21) slides within the pressure comparison cylinder and a piston shaft is connected to the piston. A pressure regulator (24) is in fluid communication with the upper volume of the pressure comparison cylinder and the slider tube cylinder. A slider tube (29) is connected to the piston shaft and slides within the slider tube cylinder. The slider tube cylinder directs fluid to a top-fill line through the first outlet port when a pressure in the lower volume exceeds a pressure setpoint and fluid to a bottom-fill line through the second outlet port when the pressure in the lower volume is below a pressure setpoint.