FUEL CYLINDER Russian patent published in 2001 - IPC

FIELD: gas and liquid storage and distribution technology. SUBSTANCE: fuel cylinder has external high-pressure vessel and internal vessel without differential pressure which cavity is coupled to refuelling and emptying line, and in upper part it communicates with cavity of high-pressure vessel. Volume of internal vessel is determined by relation: V_in≅P_max·V_c/ρ_liqR·T_max, where V_in is internal vessel volume; V_c is total volume of cylinder cavities; P_max is maximum permissible pressure in cylinder; ρ_liq is cryogenic liquid density; R is gas component of working medium; T_max is maximum permissible temperature of cylinder. External surface of internal vessel is provided with thermal insulation, and vessels communicate with each other by means of holes located in upper part of internal vessel. As a result, cylinder may be filled up with liquefied and gaseous natural gas by ordinary compression. EFFECT: enhanced reliability. 2 dwg