US 9,810,374 B2
Gas-filling apparatus and method for filling gas
Kenji Nagura, Takasago (JP); Hitoshi Takagi, Takasago (JP); and Takuro Uba, Takasago (JP)
Assigned to Kobe Steel, Ltd., Kobe-shi (JP)
Filed by Kobe Steel, Ltd., Kobe-shi (JP)
Filed on Nov. 4, 2014, as Appl. No. 14/532,185.
Claims priority of application No. 2013-257841 (JP), filed on Dec. 13, 2013.
Prior Publication US 2015/0167895 A1, Jun. 18, 2015
Int. Cl. B65B 31/00 (2006.01); F17C 5/06 (2006.01); F17C 5/00 (2006.01); F17C 13/02 (2006.01)
CPC F17C 5/06 (2013.01) [F17C 5/007 (2013.01); F17C 13/025 (2013.01); F17C 2205/0326 (2013.01); F17C 2205/0335 (2013.01); F17C 2221/012 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/033 (2013.01); F17C 2223/035 (2013.01); F17C 2225/0123 (2013.01); F17C 2225/036 (2013.01); F17C 2227/0164 (2013.01); F17C 2227/041 (2013.01); F17C 2227/046 (2013.01); F17C 2250/032 (2013.01); F17C 2250/043 (2013.01); F17C 2265/063 (2013.01); F17C 2265/065 (2013.01); F17C 2270/0139 (2013.01); Y02E 60/321 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A gas-filling apparatus comprising:
a gas flow passage including an inflow end to which a gas supply source is connectable and an outflow end to which a pressure accumulator is connectable;
a compressor connected to the gas flow passage;
flow control means associated with the gas flow passage for controlling a gas flow in the gas flow passage;
a storage portion connected to the gas flow passage; and
an operation control portion for executing a control for controlling the flow control elements to perform a first compression filling operation in which a gas supplied from the gas supply source connected to the inflow end is compressed by the compressor to be discharged from the outflow end and a second compression filling operation in which the gas stored in the storage portion is compressed by the compressor to be discharged from the outflow end,
wherein the operation control portion is configured to conduct the first compression filling operation until a pressure of the gas at the outflow end or a pressure corresponding to the pressure of the gas at the outflow end reaches a predetermined pressure and to conduct a control for shifting the first compression filling operation to the second compression filling operation when the pressure of the gas at the outflow end or the pressure corresponding to the pressure of the gas at the outflow end has reached the predetermined pressure.