Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1992-06-09
1994-06-21
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277134, 277174, F16J 15447
Patent
active
053222989
ABSTRACT:
A shaft seal element (20) for use around a rotatable shaft (10) has an annular sealing surface (22) facing a radially adjacent surface of the shaft or housing. This sealing surface (22) can comprise two outer annular lands (26, 27) with an inner land (28) therebetween. A relief groove (29, 30) separates the inner land (28) from each outer land (26, 27). A plurality of fluid redirecting grooves (40) are obliquely formed across the inner land (28). A protruding ridge (44) is formed at the trailing edge (40b) of each redirecting groove (40). The ridges (44) and redirecting grooves (40) inhibit fluid migration across the sealing surface (22) and divert a portion of the fluid towards the high pressure end of the seal element.
REFERENCES:
patent: 1448079 (1923-03-01), Moeggerath
patent: 3251601 (1966-05-01), Harvey
patent: 3558238 (1971-01-01), Van Herpt
patent: 3575424 (1971-04-01), Taschenberg
patent: 3640541 (1972-02-01), Taschenberg
patent: 3744805 (1973-07-01), Heinrich
patent: 3926442 (1975-12-01), Muller
patent: 3934888 (1976-01-01), Lutz
patent: 3938813 (1976-02-01), Forch
patent: 3963247 (1976-06-01), Nommensen
patent: 3973781 (1976-08-01), Grorich
patent: 4071254 (1978-01-01), Raimondi et al.
patent: 4076259 (1978-02-01), Raimondi
patent: 4084826 (1978-04-01), Vossieck et al.
patent: 4094519 (1978-06-01), Heyn et al.
patent: 4174845 (1979-11-01), Hadaway
patent: 4304409 (1981-12-01), Orlowski
patent: 4305592 (1981-12-01), Peterson
patent: 4383691 (1983-05-01), Potter
patent: 4406463 (1983-09-01), Fabrowsky
patent: 4420162 (1983-12-01), Yanai et al.
patent: 4423879 (1984-01-01), Takenaka et al.
patent: 4441722 (1984-04-01), Pichler
patent: 4466620 (1984-08-01), Orlowski
patent: 4497496 (1985-02-01), Repella
patent: 4504069 (1985-03-01), Stenlund
patent: 4546985 (1985-10-01), Forch
patent: 4705277 (1987-11-01), Repella
patent: 4733873 (1988-03-01), Takenaka et al.
patent: 4948152 (1990-08-01), Kilthau et al.
Beres John L.
Cuchlinski Jr. William A.
Dresser-Rand Company
LandOfFree
Shaft 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 Shaft seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2216969