SEALING RING Russian patent published in 2019 - IPC F16J15/34 

FIELD: seals.

SUBSTANCE: invention relates to sealing ring (17ʺ) for sealing unit (6), which includes housing (40, 41), rotating around axis (A); and first surface (19) formed by housing (40, 41), extending transversely to the axis (A) and configured to fit to additional sealing ring (18) in a direction parallel to axis (A). First surface (19) contains many grooves (35aʺ; 35bʺ), forming the corresponding hydrosupports; grooves (35aʺ; 35bʺ) are limited to first edge (36ʺ) and second edge (37ʺ) facing each other, with first edge (36ʺ) and second edge (37ʺ) limit grooves (35aʺ; 35bʺ) in the circumferential direction relative to specified axis (A). At least one of first edge (36ʺ) and second edge (37ʺ) made in the form of an elliptical arc, which has a combined or separate centers. First grooves (35aʺ) and second grooves (35bʺ) are arranged alternately with each other in the circumferential direction about specified axis (A) and with spacing relative to each other in the radial direction relative to specified axis (A).

EFFECT: invention increases reliability of the device.

10 cl, 9 dwg