DOUBLE-CAVITY PRESSURE VESSEL WITH VARYING VOLUME OF CAVITIES Russian patent published in 2012 - IPC F17C1/00 

FIELD: machine building.

SUBSTANCE: double-cavity pressure vessel with varying volume of cavities is intended for being used mainly as a container during transportation and storage of gases and fluids; and as pressure accumulator in hydraulic systems. Vessel consists of strong non-tight housing including shell 1 and bottoms 2 and 3, and tight bags 4 and 5 placed in it. Bags are equipped with nozzles 6, 7 and 8 tightly inserted into them and protruding outwards from the housing. Cover of each bag can fill in the whole inner cavity of housing without being stretched. Covers can be equipped with ribs 11 made from elastic material in the form of sleeve 12 with one or two bonded ends 13. Bag outlet through nozzle can be equipped with hollow stiff element 15 with perforated walls, and external surface of bags can be covered with cover made from antifriction material 16.

EFFECT: use of invention will allow excluding the tightness requirement of stiff strong housing and eliminating the contact of one cover with both media filling in the vessel.

3 dwg