Thrust compensating apparatus

Rotary kinetic fluid motors or pumps – With shaft connected fluid force subjected thrust balancing... – In separate chamber having non-system fluid inlet

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415104, 415107, 277 27, 310 905, F01D 300, F01D 304

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active

051042843

ABSTRACT:
Thrust compensating apparatus for providing a thrust force to compensate for the thrust forces applied to the shaft of single stage overhung turbo machines by the fluid pressure in the cavity of the turbo machine is disclosed and includes a thrust compensating member attached to the shaft of the turbo machine and having a first surface subjected to the fluid pressure in the cavity, an annular seal, an annulus cavity formed by a second surface of the thrust compensating member and the annular seal and venting apparatus for controlling the fluid pressure in the annulus cavity resulting in a compensating thrust force being applied to the thrust compensating member as a result of the differential in pressure across the first and second surfaces of the thrust compensating member.

REFERENCES:
patent: 2304994 (1942-12-01), Franck
patent: 3531223 (1970-09-01), Daltry et al.
patent: 3563618 (1971-02-01), Ivanov
patent: 3671137 (1972-06-01), Ball
patent: 4170435 (1979-10-01), Swearingen
patent: 4413946 (1983-11-01), Marshall et al.
patent: 4472107 (1984-09-01), Chang et al.
patent: 4538960 (1985-09-01), Iino et al.
patent: 4615657 (1986-10-01), Kreitmeier
patent: 4822240 (1989-04-01), Marshall
patent: 4892459 (1990-01-01), Guelich
patent: 4993917 (1991-02-01), Kulle et al.

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