Patent ID: 7762558
Filing Date: 2010-07-27
Classification: F16J

Abstract:
1. A device for sealing a rotating shaft that penetrates a stationary housing wall; the device comprising: a seal comprising a sealing ring connected fixedly to a housing wall and arranged between the housing wall and a shaft, wherein a sealing gap is formed between an inner wall surface of the sealing ring and an outer wall surface of the shaft and wherein the sealing ring seals a first housing side relative to a second housing side of the housing wall; the sealing ring having sealing oil supply bores that supply sealing oil into the sealing gap; the inner wall surface of the sealing ring having a continuous circumferential groove, that is continuous in a circumferential direction of the sealing ring, and pocket-shaped recesses arranged within the continuous circumferential groove and recessed relative to a bottom of the continuous circumferential groove; wherein the pocket-shaped recesses have a first width in an axial direction of the sealing ring and wherein the continuous circumferential groove has a second width in the axial direction of the sealing ring, wherein the first and second widths are identical so that the pocket-shaped recesses are exclusively arranged within the continuous circumferential groove; wherein the sealing oil supply bores each open into one of the pocket-shaped recesses, wherein the pocket-shaped recesses extend in the circumferential direction of the sealing ring, wherein the pocket-shaped recesses each are wedge-shaped in a rotary direction of the shaft and are connected to one another in the circumferential direction by the continuous circumferential groove; the inner wall surface of the sealing ring having at least one circumferential boundary stay that delimits and seals the pocket-shaped recesses in the axial direction of the sealing ring toward one of the first and second housing sides.