Bidirectional finger seal

Details Bidirectional finger seal Bidirectional finger seal

1989-12-21

1991-07-16

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277193, 4151745, F16J 15447

Patent

active

050319221

ABSTRACT:
An annular shaft seal apparatus of the labyrinth type includes at least two pair of axially stacked thin annular diaphragm members. Each of the diaphragm members includes an annular array of radially and circumferentially extending finger portions defining gaps therebetween. The diaphragms of each pair are so disposed that the fingers of each block the gaps of the other. One of the pairs of diaphragm members is right-handed with respect to circumferential angulation of the finger portions, while the other pair is left-handed. Thus, sealing integrity is maintained by the finger portions regardless of the direction of shaft rotation.

REFERENCES:
patent: Re30206 (1980-02-01), Ferguson et al.
patent: 885032 (1908-04-01), De Ferranti
patent: 2124108 (1938-07-01), Grece
patent: 2233579 (1941-03-01), Bowers
patent: 2571817 (1951-10-01), Armstrong
patent: 2699349 (1955-01-01), Brownlee
patent: 3199878 (1965-08-01), Cunningham et al.
patent: 3381969 (1968-05-01), Crow et al.
patent: 3411794 (1968-11-01), Allen
patent: 3460842 (1969-08-01), Pointer et al.
patent: 3719365 (1973-03-01), Emmerson et al.
patent: 3744805 (1973-07-01), Heinrich
patent: 3843278 (1974-10-01), Torell
patent: 3880435 (1975-04-01), Thronbald
patent: 3970319 (1976-07-01), Carroll et al.
patent: 4415317 (1983-11-01), Butterworth
patent: 4645217 (1987-02-01), Honeycutt et al.
patent: 4678113 (1987-07-01), Bridges et al.
patent: 4696480 (1987-09-01), Jornhasen
patent: 4756536 (1988-07-01), Belcher
patent: 4770424 (1988-09-01), Otto
patent: 4781530 (1988-11-01), Lauterbach et al.
Technical Paper entitled "Brushes as High Performance Gas Turbine Seals" by J. G. Ferguson.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-125686