Labyrinth seal

Details Labyrinth seal Labyrinth seal

1974-12-09

1976-02-24

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG1, F16J 1548, F02F 1100

Patent

active

039401537

ABSTRACT:
A labyrinth seal has two relatively rotatable members which are configured to define between them a succession of annular orifice or clearances between seal knives on one member and generally cylindrical surfaces or lands on the other. The members define a doubly recurved flow path from each orifice to the orifice next downstream. The first reversal of flow is effected by a barrier at the downstream end of the land having a hemi-toroidal surface to deflect the flow back toward the orifice. Flow is again reversed in passing around the barrier and flows between the barrier and the other seal member to the next downstream orifice. A ring of slots through the barrier tangential to the hemi-toroidal surface discharges some of the flow into the twice reversed flow so as to provide an aerodynamic dam to increase turbulence and reduce the flow area and, therefore, increase pressure drop and sealing effectiveness.

REFERENCES:
patent: 2916332 (1959-12-01), Pavlecka
patent: 3572728 (1971-03-01), Smuland

Affiliated with

Also associated with

Rating

Labyrinth seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Labyrinth seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Labyrinth seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2077455