US 12,152,731 B2
Quick connecting receptacle for liquid hydrogen storage tank
Jong H Baik, Titusville, FL (US); Sung Yong Kim, Yongin-si (KR); Jeong Hyun Im, Yeongwol-gun (KR); and Hyung Jin Kim, Yongin-si (KR)
Assigned to H2CREO Corp., Dover, DE (US)
Filed by H2CREO Corp., Dover, DE (US)
Filed on Mar. 31, 2023, as Appl. No. 18/194,301.
Claims priority of provisional application 63/384,975, filed on Nov. 25, 2022.
Prior Publication US 2024/0175552 A1, May 30, 2024
Int. Cl. F17C 13/04 (2006.01); F17C 5/02 (2006.01); F17C 7/02 (2006.01)
CPC F17C 13/04 (2013.01) [F17C 5/02 (2013.01); F17C 7/02 (2013.01); F17C 2221/012 (2013.01); F17C 2227/04 (2013.01); F17C 2270/0763 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A quick-connecting receptacle for a liquid hydrogen storage tank, comprising:
a storage tank for storing liquid hydrogen; and
a receptacle connecting an external transmission pipe and the storage tank so that liquid hydrogen introduced through the transmission pipe is stored in the storage tank,
wherein the receptacle includes an upper receptacle connected to a lower end portion of the transmission pipe and a lower receptacle connected to an upper portion of the storage tank, wherein the upper receptacle comprises:
an upper receptacle body;
an upper connecting portion protruding from a side surface of the upper receptacle body so that the lower receptacle and the upper receptacle are coupled;
a first flow path formed penetrating a central portion of the upper receptacle body and through which liquid hydrogen flows;
a second flow path formed in a vertical direction along a circumference of the first flow path and through which gaseous hydrogen flows;
a first inlet/outlet formed so that a lower end portion of the first flow path is open to allow liquid hydrogen to enter/exit;
a second inlet/outlet formed in a lower portion of the second flow path through which gaseous hydrogen enters/exits; and
a third port formed so that gaseous hydrogen is discharged to outside or introduced from outside; and
the lower receptacle includes a cylinder accommodated therein, and as the cylinder moves up and down, liquid hydrogen or gaseous hydrogen is stored in the storage tank or liquid hydrogen or gaseous hydrogen is discharged from the storage tank to outside, wherein the lower receptacle comprises:
a lower receptacle body formed in a cylindrical shape;
a lower connecting portion protruding from an upper end of the lower receptacle body so that the upper receptacle and the lower receptacle are coupled;
a cylinder spring provided on a bottom surface of the lower receptacle body to support the cylinder;
a first port formed in the lower portion of the lower receptacle body and through which liquid hydrogen enters/exits; and
a second port formed spaced apart from the first port by a predetermined distance upward and through which gaseous hydrogen enters/exits.