Centrifugal fluid seal

Details Centrifugal fluid seal Centrifugal fluid seal

1982-01-29

1983-05-17

Levy, Stuart S.

Cutlery

277 14R, 277 15, 277135, F16C 3376, F16J 1542

Patent

active

043837204

ABSTRACT:
A centrifugal fluid seal includes a rotatable hollow rotor formed by an annular cup enclosed by an annular cover having drain holes near its periphery. A stationary annular cap and recirculator jointly define an annular cavity in which the fluid to be sealed is centrifuged outwardly. At the outer limits of such cavity, the recirculator is apertured and receives high pressure fluid which rotates within the hollow recirculator and which is discharged radially inwardly just upstream of the cavity, against the rotor. The stationary annular cap also supports diverting means within the rotor, while the rotor supports annular conducting means for centrifuging any leakage fluid. In one embodiment, the rotor has a centrifugally responsive static seal that ensures sealing and engages the stationary annular cap in the absence of rotation, but automatically disengages from frictional contact with the stationary annular cap during dynamic seal operation.

REFERENCES:
patent: 1986621 (1935-01-01), Bott
patent: 2823052 (1958-02-01), Collman
patent: 2960356 (1960-11-01), Tyce et al.
patent: 3455561 (1969-07-01), Rinker et al.
patent: 3765688 (1973-10-01), Junker

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