Patent ID: 9151391
Filing Date: 2015-10-06
Classification: B23P,F16C,F16J,Y10T

Abstract:
1. A labyrinth seal comprising: a first labyrinth ring and a second labyrinth ring engaged with the first labyrinth ring in an at least partially overlapping manner, the first labyrinth ring being rotatable relative to the second labyrinth ring or the second labyrinth ring being rotatable relative to the first labyrinth ring, wherein at least one first surface of the first labyrinth ring opposes at least one second surface of the second labyrinth ring, the at least one first surface is comprised of at least one replaceable surface material disposed on a base material, and the at least one replaceable surface material has a lower wear resistance than the base material and the at least one second surface, wherein the at least one replaceable surface material is configured to wear faster than the at least one second surface when the at least one replaceable surface material and the at least one second surface contact during operation.