AUTO-PACKING METHOD Russian patent published in 2019 - IPC F16J15/48 

FIELD: machine building.

SUBSTANCE: invention relates to method of automatic packing. Between sealed parts 1 and 2 form an annular cavity in which sealing ring 3 and pressure ring 4 are arranged with the possibility of their automatic pressing due to the medium pressure inside the sealed cavity. Seal ring 3 is preformed from graphite tape. Layers of graphite tape are laid concentrically to ring axis and encased in protective annular corsets 5. Three corsets are made with end and two cylindrical walls, and the fourth corset is made with end, cylindrical and conical walls. O-ring 3 is installed on mounting surface of pressure ring 4, forming replaceable assembly unit - automatic sealing. Ring corsets of opposite ends of sealing ring are connected by elastic annular diaphragm 6, and layers of graphite tape are laid on outer and inner sides of diaphragm.

EFFECT: method provides increased service life and reduced operational costs of seals acting due to medium pressure inside the sealed cavity.

11 cl, 12 dwg