CRYOGENIC SYSTEM Russian patent published in 1999 - IPC

FIELD: transport mechanical engineering; aviation engineering. SUBSTANCE: cryogenic system for storage and supply of cryogenic liquid has tank and spatial configuration pipeline inclined to tank to form siphon sections and stagnation regions inside tank which have drain holes; unit, such as filter, is installed outside the tank on pipeline, its bottom part communicating through drain pipeline with tank or with additional receiver. Pipelines running inside tank are inclined downwards at least partially and provide for liquid flow to tank; drain holes and drain pipeline running to tank terminate on inlet sides in tank portions over which liquid flows when it is filled due to flow distribution in bottom part of tank; liquid held in tank dissolves solid or liquid impurities draining therein. Cryogenic system does not require partial or full heating to avoid accumulation of high-boiling impurities in cryogenic mixture especially that using liquid hydrogen, liquid methane, or liquefied gas. Impurities are drained from siphon sections and stagnation regions of pipeline back to tank or additional receiver thereby eliminating their accumulation in cryogenic system. EFFECT: improved safety and reliability in operation, enlarged service life of system. 3 cl, 2 dwg