Shaft Seal Assembly
AssigneeInpro/Seal LLC
InventorDavid Stegman
Life of this patent
Estimating the term…
Abstract
Implementations of a shaft seal assembly include a throttle that is configured to receive a shaft therethrough, a set of packing rings, each packing ring in the set of packing rings being configured to receive a shaft therethrough, a packing case that at least partially surrounds the throttle and the set of packing rings, and a packing follower that is axially adjustable relative to the packing case to impart an axial force on the packing rings in the set of packing rings and the throttle to provide a seal between the shaft seal assembly and the shaft, the shaft seal assembly being angularly articulable and radially movable in response to movement of the shaft.
Claims23
A shaft seal assembly, comprising:
- a throttle that is configured to receive a shaft therethrough, the throttle comprising one or more shaft-facing surfaces defining a groove that defines, together with the shaft, a chamber configured to receive a flow of pressurized sealing fluid to generate a pressurized seal between the throttle and the shaft;
- a set of packing rings, each packing ring in the set of packing rings being configured to receive the shaft therethrough;
- a packing case that at least partially surrounds the throttle and the set of packing rings;
- and
- a packing follower that is axially adjustable relative to the packing case to impart an axial force on the packing rings in the set of packing rings and the throttle to provide a seal between the shaft seal assembly and the shaft,
- the shaft seal assembly being angularly articulable and radially movable in response to movement of the shaft.
(canceled)
A shaft seal assembly, comprising:
- a first stator;
- a second stator that is disposed within the first stator and that is movable relative to the first stator, the second stator at least partially containing:
- a throttle that is configured to receive a shaft therethrough, the throttle comprising one or more shaft-facing surfaces defining a groove that defines, together with the shaft, a chamber configured to receive a flow of pressurized sealing fluid to generate a pressurized seal between the throttle and the shaft,
- a set of packing rings, each packing ring in the set of packing rings being configured to receive the shaft therethrough, and
- a packing case that at least partially surrounds the throttle and the set of packing rings;
- and
- a packing follower that is axially adjustable relative to the packing case to impart an axial force on the packing rings in the set of packing rings and the throttle to provide a seal between the shaft seal assembly and the shaft,
- the shaft seal assembly being angularly articulable and radially movable in response to movement of the shaft.
(canceled)
Dependencies are inferred from the claim text.