DEVICE FOR SUPPLY OF AIR TO ELECTRIC COMPRESSORS Russian patent published in 2004 - IPC

FIELD: hoist and mast gears; air supply systems of nuclear-powered submarines. SUBSTANCE: proposed device has retractable mast made in form of pipe with float valve fitted on its upper end and coaming at lower end; device includes also bearing guide stand, casing and hydraulic hoist. Fitted in center of retractable mast is pipe of lesser diameter which is rigidly connected with inner surface of mast . Hydraulic hoist equipped with movable cylinder and fixed rod is mounted in pipe. Retractable mast is movably mounted in bushes of bearing guide stand connected with air supply pipe by means of casing. Lower portion of casing is provided with branch pipe fitted with flange. EFFECT: reduction of overall dimensions and mass of gear. 3 dwg