Hydrodynamic seal with collector bead

Details Hydrodynamic seal with collector bead Hydrodynamic seal with collector bead

1978-11-13

1980-01-15

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1532

Patent

active

041835433

ABSTRACT:
An improved liquid to gas seal is disclosed for a bi-directional rotatable shaft. The seal is of the annular lip type and has a circular sealing edge which engages the shaft. The gas side of the seal is provided with an annular bead parallel to and spaced from the sealing edge and with a plurality of asymmetrical ribs which efficiently pump liquid escaping past the sealing edge back to the liquid side of the seal.

REFERENCES:
patent: 3504920 (1970-04-01), Halliday
patent: 3633927 (1972-01-01), Van Deven
patent: 4084826 (1978-04-01), Vossieck et al.
patent: 4118856 (1978-10-01), Bainard et al.

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