Split labyrinth seal
AssigneeJM Clipper Corporation
InventorGeorge Fedorovich
Life of this patent
Estimating the term…
Abstract
A two-piece labyrinth seal adapted to be easily and quickly mounted upon a shaft within a housing to minimize downtime of the equipment. The seal is formed of a rotor and a stator. The rotor and the stator are each formed of two relatively equal portions. The rotor portions and the stator portions each mate at an interface. The interface is generally along an axial plane and crosses the plane at least twice within the rotor and within the stator. The rotor is interlocked with the stator. The rotor and stator portions are mechanically connected.
Claims33
(Amended) A two-piece labyrinth seal adapted to be mounted upon a rotatable shaft, said seal comprising:
- a stator having at least two stator portions;
- and
- a rotor axially mounted on and interlocked with said stator, said rotor having at least two rotor portions;
- wherein said rotor portions have a wave-shaped interface which crosses an axially directed plane at least twice to inhibit axial movement of one of said rotor portions relative to the other.
A sealed systems, comprising
- a housing;
- a shaft rotatable relative to an extending through said housing;
- and
- a labyrinth seal including:
- a stator having at least two stator portions, said stator being located in said housing;
- and
- a rotor axially mounted on and interlocked with said stator, said rotor having at least two rotor portions, said rotor being located on said shaft;
- wherein said rotor portions have a wave-shaped interface which crosses an axially directed plane at least twice to inhibit axial movement of one of said rotor portions relative to the other.
A method of forming a labyrinth seal on a shaft, said method comprising the steps of:
- mating at least two rotor portions to form a rotor, wherein said rotor portions mate at a wave-shaped interface which crosses an axially directed plane at least twice to inhibit axial movement of one of said rotor portions relative to the other;
- mating at least two stator portions to form a stator;
- locating said rotor on said shaft;
- and
- interlocking said rotor and said stator.
A method of forming a labyrinth seal on a shaft, said method comprising the steps of:
- interlocking a first rotor portion with a first stator portion;
- mounting said first interlocked rotor and stator portions on said shaft;
- interlocking a second rotor portion with a second stator portion;
- mounting said second interlocked rotor and stator portions on said shaft;
- mating said first and second rotor portions to form a rotor, wherein said first and second rotor portions mate at an interface which crosses an axially directed plane at least twice to inhibit relative axial movement of said first and second rotor portions;
- mating said first and second stator portions to form a stator, wherein said first and second stator portions mate at an interface which crosses an axially directed plane at least twice to inhibit relative axial movement of said first and second stator portions;
- mechanically connecting said rotor portions together by at least one cap screw.
Dependencies are inferred from the claim text.