Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1991-02-21
1992-10-27
Kwon, John T.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
415110, 277 15, 277 85, F04D 2908
Patent
active
051584310
ABSTRACT:
A turbocompressor shaft seal, especially for a high-pressure turbocompressor, has each of its gas-side and atmosphere-side slide rings biased toward a rotor ring of the shaft and associated with blocking-liquid compartments which are interconnected by an annular passage around the rotor ring. The compartments are connected in a closed circulation path with a circulating pump and a cooler and leakage liquid is returned by a feed pump to the liquid circulation with the aid of a pressure transformer biased on one side by the gas pressure to be sealed and an adjustable spring force and, on the other side, by the pressure of the blocking liquid.
REFERENCES:
patent: 2723868 (1955-11-01), Hartranft
patent: 2944843 (1960-07-01), Colby
patent: 3511185 (1970-05-01), Haentjens
patent: 3652183 (1972-03-01), Pottharst, Jr.
patent: 4434986 (1984-03-01), Warner
patent: 4552368 (1985-11-01), Wallace
patent: 4936821 (1990-06-01), Zuccato
Dedeken Ralf
Laarmann Hans-Wilhelm
Maser Gustav
Schellong Helmut
Victor Karl-Heinz
Dubno Herbert
Kwon John T.
Mannesmann A.G.
Pacific Wietz GmbH & Co. K.G.
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