Controlled leakage rotating seal ring with elements for receiving and holding a lubricant on a face thereof
AssigneeCaterpillar Inc.
InventorsAlan M. Dickey, Kristy J. Johnson, David K. Perry
Life of this patent
Estimating the term…
Abstract
A seal ring mountable to a rotating member for rotation therewith, the seal ring including a gap or other feature providing controlled leakage therethrough, a radial inner circumferential face, an opposite radial outer circumferential face, and at least one axial end face extending between the inner circumferential face and the outer circumferential face, wherein at least one face includes elements for receiving and holding a lubricant for providing lubrication between the face and a surface located in opposing relation thereto during rotation of the seal ring relative to the surface.
Claims18
A seal ring mountable to a rotating member for rotation therewith, comprising:
- a radial inner circumferential face, an opposite radial outer circumferential face, and at least one axial end face extending between the inner circumferential face and the outer circumferential face, wherein the at least one axial end face includes elements for receiving and holding a lubricant for providing lubrication between the at least one axial end face and a surface located in opposing relation thereto during rotation of the seal ring relative to the surface;
- and
- a gap extending through the seal ring and adapted for promoting a controlled amount of said lubricant to pass through the seal ring during the rotation thereof whereby at least a portion of said lubricant passing through the seal ring is received by said elements for receiving and holding a lubricant.
A seal ring mountable to a rotating member for rotation therewith relative to a non-rotating surface, comprising:
- a radial inner circumferential face, an opposite radial outer circumferential face, and an axial end face positioned to be located in face-to-face relation with the non-rotating surface during the rotation of the seal ring relative thereto, the end face including elements for receiving and holding a lubricant for providing lubrication between the end face and the surface during the rotation;
- and
- a gap extending through the seal ring and adapted for promoting a controlled amount of said lubricant to pass through the seal ring during the rotation thereof whereby at least a portion of said lubricant passing through the seal ring is received by said elements for receiving and holding a lubricant.
A seal ring mountable to a rotating member for rotation therewith, comprising:
- a radial inner circumferential face, an opposite radial outer circumferential face, and at least one axial end face extending between the inner circumferential face and the outer circumferential face, wherein the at least one axial end face includes means for receiving and holding a lubricant for providing lubrication between the at least one axial end face and a surface located in opposing relation thereto during rotation of the seal ring relative to the surface;
- and
- a gap extending through the seal ring and adapted for promoting a controlled amount of said lubricant to pass through the seal ring during the rotation thereof whereby at least a portion of said lubricant passing through the seal ring is received by said means for receiving and holding a lubricant.
Dependencies are inferred from the claim text.