Shaft Seal Assembly
AssigneeInpro/Seal LLC
InventorsNeil F. Hoehle, Tom Horner
Life of this patent
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Abstract
An illustrative embodiment of a shaft seal assembly generally includes a fixed stator, a floating stator, and a sealing member. In the illustrative embodiment the fixed stator may be formed with one or more fluid conduits that are in fluid communication with one or fluid conduits formed in the floating stator. The fluid conduits in the floating stator may be in fluid communication with one or more fluid conduits formed in a sealing member. A rotational interface may exist between the sealing member and a shaft, and the various fluid conduits may be configured to create a fluid barrier at that interface. Other embodiments of a shaft seal assembly may create a fluid barrier at a rotational interface between a rotor and a floating stator.
Claims9
A shaft seal assembly comprising:
- a first stator having a concave surface on a radially interior portion thereof;
- a second stator positioned within the first stator, the second stator having a convex surface on a radially exterior portion thereof, at least one of the first stator and the second stator defining a channel on a radially interior surface thereof;
- and
- a throttle positioned within the channel, the throttle being moveable in at least a radial dimension with respect to at least one of the first stator and the second stator, wherein the throttle comprises an interior surface configured to receive a shaft and a plurality of radial bores extending to the interior surface,
- wherein the concave surface of the first stator and the convex surface of the second stator form a semispherical interface between the first stator and the second stator.
Dependencies are inferred from the claim text.