Seals

Details Seals Seals

2007-05-15

2007-05-15

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

Seal

Reexamination Certificate

active

11093156

ABSTRACT:
A seal for a rotating machine is designed to be operable when set and cured in situ and one seal arrangement includes a washer having a beveled face and a nut having a beveled face axially spaced therefrom and mounted in a housing, the one seal arrangement is mounted between the bevel faces and assembled to be angularly disposed relative to the rotating shaft. The bottom edge defines a lip that defines a minuscule opening allowing only the air from an air/oil mist to leak downstream thereof. Another seal arrangement also set and cured in situ, is mounted adjacent the rotating inner race of a ball bearing so that the reaction from the seals static relationship and the rotating inner race causes the oil of the oil mist to be slung in a direction complementing the centrifugal force while the air flows axially. When the two seals are mounted in tandem the oil does not leak pass the angularly disposed seal.

REFERENCES:
patent: 2990220 (1961-06-01), Malone
patent: 3156158 (1964-11-01), Pamplin
patent: 3890021 (1975-06-01), Smith et al.
patent: 4042248 (1977-08-01), Williamitis

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