Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1982-02-18
1983-11-08
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 15, 277 22, 277 59, F16C 3374, F16J 1540
Patent
active
044138296
ABSTRACT:
A shaft sealing assembly containing a liquid lubricant uses an arrangement hich can accommodate shaft-eccentricities and vibratory movements which cause radial deflections of the shaft, without impairing the efficiency of sealing of the assembly. The assembly is of a type using a housing in which two flexible sealing rings are spaced apart from each other and mounted to be stationary on the shaft, at least one sealing ring being supported by a mounting ring. The mounting ring is capable of radially being displaced within the housing, when there is shaft-eccentricity, or when radial vibratory movements of the shaft occur. The mounting ring is nonrotatably supported from the inside of the housing by a resilient annular wall made of a sealing material. The arrangement comprises at least one inner annular chamber containing the liquid lubricant, and at least one outer annular chamber disposed radially outside the mounting ring, the two annular chambers being provided with a connecting fluid passage. Rotation of the shaft causes the lubricant from the inner chamber to be guided by deflectors into the outer chamber via the fluid passage. The lubricant is cooled in the outer chamber and led back into the inner chamber. The shaft sealing assembly is particularly useful as an aft-stern tube seal of a vessel, providing seal-safety and long seal-life.
REFERENCES:
patent: 2219064 (1940-10-01), Boter et al.
patent: 3088744 (1963-05-01), Ezekiel et al.
patent: 3650582 (1972-03-01), Casey
patent: 3843140 (1974-10-01), Mayer
patent: 3847453 (1974-11-01), Herbert
patent: 3866924 (1975-02-01), French
patent: 3936057 (1976-02-01), Walter
Howaldtswerke-Deutsche Werft Aktiengesellschaft Hamburg und Kiel
Lewis Jon M.
Smith Robert I.
LandOfFree
Shaft sealing assembly 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 sealing assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft sealing assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2004599