Flow dams in labyrinth seals to improve rotor stability

Details Flow dams in labyrinth seals to improve rotor stability Flow dams in labyrinth seals to improve rotor stability

1988-02-18

1990-12-25

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 3, 277 53, 277 56, 277192, 415119, 4151735, 4151745, E21B 3300, F01D 520, F16J 1544

Patent

active

049797557

ABSTRACT:
Methods and apparatus for preventing swirl in a stem turbine having an annular-shaped stationary portion through which extends in regions of differential pressure a rotatable shaft include flow dams situated perpendicularly with respect to a plurality of spaced-apart annular teeth which extend radially inward from the stationary portion toward the shaft to within close proximity thereof, each adjacent pair of teeth forming a cavity there between. By damming the cavities, a circumferential stem flow is substantially minimized, thereby preventing the conditions necessary for the inducement of swirl.

REFERENCES:
patent: 4114059 (1978-09-01), Albaric et al.
patent: 4257617 (1981-03-01), Hill
patent: 4273510 (1981-06-01), Ambrosch et al.
patent: 4370094 (1983-01-01), Ambrosch et al.
patent: 4420161 (1983-12-01), Miller
patent: 4436311 (1084-03-01), Brandon

Affiliated with

Also associated with

Rating

Flow dams in labyrinth seals to improve rotor stability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow dams in labyrinth seals to improve rotor stability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow dams in labyrinth seals to improve rotor stability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1158822