Liquid packing

Details Liquid packing Liquid packing

1983-08-16

1984-09-18

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 72R, F16V 1516, F16V 1528

Patent

active

044719647

ABSTRACT:
In a liquid packing, the inlet pressure of the sealing liquid is substantially increased above the gas pressure at the high pressure side, by means of a centrifugal packing which is enclosed at both sides by an annular floating body and provided, at both sides, with flow passages and, radially farther, with annular flanges to obtain a safe seal. Check valves opening at a definite intermediate pressure effect a flow of the sealing liquid through the high pressure-side sealing gap between the shaft packing and the floating body and passages in the floating body, to mix it with the supplied sealing liquid, whereby the friction heat produced in the sealing gap is removed to a large extent.

REFERENCES:
patent: 3360272 (1967-12-01), Blom et al.
patent: 3756673 (1973-09-01), Strub
patent: 3788652 (1974-01-01), Hirtz et al.
patent: 4365815 (1982-12-01), Scott
patent: 4395141 (1983-07-01), Pietsch et al.
patent: 4408765 (1983-10-01), Adelmann

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