Hydrodynamic seal assembly with interface control
AssigneeEaton Intelligent Power Limited
InventorEdward N. Ruggeri
Life of this patent
Estimating the term…
Abstract
A hydrodynamic seal (10) for use with a rotating shaft (24) is disclosed. The seal includes a face seal (20) and a mating ring (22) fixed or connected to rotate with the shaft. A clamping nut (30) is adjacent to the mating ring and includes threads to secure a portion of the clamping nut to the shaft via a threaded interface (32). Embodiments of the seal and related assembly include at least one of: a spring component (140) with or on the clamping nut; a clamping surface (150) on an interface between the mating ring and the clamping nut, the clamping surface being substantially parallel to a thread pitch on the threaded interface; and a pilot surface (250) on the clamping nut.
Claims16
A seal assembly, comprising:
- a shaft;
- a face seal;
- a mating ring fixed or connected to rotate with the shaft;
- and
- a clamping nut including a spring component;
- wherein the clamping nut is provided adjacent to the mating ring, a portion of the clamping nut engages or is secured to the shaft via threads;
- and the clamping nut provides a clamp load around a portion of the mating ring via contact with an end of the spring component;
- and
- wherein the spring component includes a radially outward extending annular groove and a radially inward extending annular groove.
A seal assembly, comprising:
- a shaft;
- a face seal;
- a mating ring fixed or connected to rotate with the shaft;
- and
- a clamping nut including at least one radially extending groove at an axial end of the clamping nut adjacent to the mating ring, the clamping nut being made from a singular material;
- wherein a portion of the clamping nut engages or is secured to the shaft via a threaded interface;
- the clamping nut provides a clamp load around a portion of the mating ring;
- and a clamping surface on an interface between the mating ring and the clamping nut is substantially parallel to a thread pitch of the threaded interface.
A seal assembly for use with a rotating shaft, the seal assembly comprising:
- a face seal;
- a mating ring fixed or connected to rotate with said shaft;
- and
- a clamping nut adjacent to the mating ring, the clamping nut including threads and configured to be secured to said shaft via a threaded interface, the clamping nut configured to provide a clamp load around a portion of the mating ring;
- and
- a spring component with or on the clamping nut and having an S-shaped configuration, the spring component include at least one radially extending annular groove.
Dependencies are inferred from the claim text.