MECHANICAL PACKING Russian patent published in 2011 - IPC F16J15/26 

FIELD: machine building.

SUBSTANCE: mechanical packing consists of element creating compression made in form of set of packing rings arranged with gap relative to internal surface of packed cylinder and of two similarly made supports arranged on different sides from packing rings and corresponding to set of lengthwise guides out of wear resistant material with low friction coefficient. Two compressed rings are located on both sides from the set of packing rings and have diameter smaller, than diameter of the supports. Also, at least one of compressed rings travels relatively to another compressed ring. When a plunger moves, the supports centre the packing. Contacting surface of the packed cylinder, the guides of the supports receive loads and release loads from the packing rings of the element creating compression.

EFFECT: increased reliability of packing.

2 cl, 1 dwg