Shaft seal

Details Shaft seal Shaft seal

1989-09-06

1992-08-18

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277152, F16J 1532

Patent

active

051392755

ABSTRACT:
A shaft seal including a reinforcement ring 1 with a lip ring 2 made of a polymeric material which is connected thereto and which is provided with a cylindrical surface 4 surrounding a shaft 3 at a certain distance and with projecting retaining bodies having flow bounding surfaces disposed in radial direction of the aforesaid cylindrical surface, and the aforesaid flow bounding surfaces are associated with the longitudinal direction of the shaft at an acute angle. The free spaces 6 which are enclosed by the cylindrical surface 4, the shaft 3, and the retaining bodies 5 during non-rotation or standstill of the shaft are of capillary-active narrowness and axially completely open in direction toward the space to be sealed as well as in the opposite direction.

REFERENCES:
patent: 3589739 (1971-06-01), Scholten
patent: 3895814 (1975-07-01), Kupfert et al.
patent: 3973781 (1976-08-01), Grorich
patent: 4174845 (1979-11-01), Hadaway
patent: 4300777 (1981-11-01), Symons
patent: 4616836 (1986-10-01), Drygalski et al.

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