Seal ring with frictional load surface
AssigneeCaterpillar Inc.
InventorDarren B. Antoine
Life of this patent
Estimating the term…
Abstract
A seal ring is disclosed. The seal ring can have one or more exterior surfaces extending between a first outer axial end of the seal ring to a seal flange. The seal flange can be positioned adjacent to a second outer axial end of the seal ring and can extend radially outward to an outer diameter of the seal ring. An outer surface of the seal flange can form an annular sealing band. A seal ramp can extend outwardly from a first end proximate to the first outer axial end of the seal ring to a second end positioned adjacent to the seal flange. The seal ramp can include a first surface configured to form a frictional, sealing contact interface between the first surface and an elastomeric seal compressed into contact with the first surface when the elastomeric seal is in a loaded state.
Claims20
A seal ring, comprising:
- one or more exterior surfaces extending between a first outer axial end of the seal ring to a seal flange, the seal flange positioned adjacent to a second outer axial end of the seal ring and extending radially outward from the one or more exterior surfaces to an outer diameter of the seal ring;
- an outer surface of the seal flange forming an annular sealing band, the annular sealing band extending radially along the second outer axial end of the seal ring and positioned adjacent to the outer diameter of the seal ring;
- an inclined seal ramp formed by one or more of the one or more exterior surfaces of the seal ring, the seal ramp extending outwardly from a first end of the seal ramp proximate to the first outer axial end of the seal ring to a second end of the seal ramp positioned adjacent to the seal flange;
- and
- the seal ramp including a first surface positioned adjacent to the first end of the seal ramp, the first surface configured to form a frictional, sealing contact interface between the first surface and an elastomeric seal compressed into contact with the inclined seal ramp when the elastomeric seal is in a loaded state.
A seal assembly comprising:
- an annular elastomeric seal;
- a seal ring having a seal flange and one or more exterior surfaces extending between a first outer axial end of the seal ring to the seal flange, the seal flange positioned adjacent to a second outer axial end of the seal ring and extending radially outward from the one or more exterior surfaces to an outer diameter of the seal ring;
- an outer surface of the seal flange forming an annular sealing band, the annular sealing band extending radially along the second outer axial end of the seal ring and positioned adjacent to the outer diameter of the seal ring;
- an inclined seal ramp formed by one or more of the one or more exterior surfaces of the seal ring, the seal ramp extending outwardly from a first end of the seal ramp proximate to the first outer axial end of the seal ring to a second end of the seal ramp positioned adjacent to the seal flange;
- the seal ramp including a first surface positioned adjacent to the first end of the seal ramp, the first surface configured to form a frictional, sealing contact interface between the first surface and an elastomeric seal compressed into contact with the first surface when the elastomeric seal is in a loaded state;
- and
- the elastomeric seal mounted on one or more of the exterior surfaces of the seal ramp.
A seal ring, comprising:
- an annular body extending axially between a first outer end and a second outer end, the annular body including a collar positioned adjacent to the first outer end of the annular body and a seal flange extending radially outwardly from the second outer end of the annular body to an outer diameter of the annular body;
- an inclined seal ramp positioned between the collar and the seal flange;
- the seal ramp including a frictional exterior surface positioned adjacent to the collar and a smooth exterior surface positioned adjacent to the seal flange;
- and
- wherein the inclined seal ramp and collar have a substantially uniform thickness extending throughout an axial width of the annular body from the first outer end of the annular body to the second outer end of the annular body.
Dependencies are inferred from the claim text.