Axially thrust-compensated turbo machine

Details Axially thrust-compensated turbo machine Axially thrust-compensated turbo machine

1992-09-01

1994-05-17

Look, Edward K.

Rotary kinetic fluid motors or pumps

With shaft connected fluid force subjected thrust balancing...

In separate chamber having non-system fluid inlet

415106, 415107, 415113, 415118, 415230, 277 2, 277 3, 277 65, 277 81R, F01D 302

Patent

active

053122259

ABSTRACT:
In a turbo machine with magnetic bearings on both sides and dry gas seals for the rotor, the axial thrust acting upon the rotor and generated by the pressure difference between the pressure side and the suction side is compensated for in that a dry gas seal provided on the suction side and the end of the shaft are acted upon by a certain pressure, which generates a compensating axial thrust, so that the resultant axial thrust becomes as slight as possible. Advantageously, this pressure is regulated via the bearing gap of an axial magnetic bearing of the rotor such that the bearing gas assumes a predetermined value.

REFERENCES:
patent: 4413946 (1983-11-01), Marshall
patent: 4795927 (1989-01-01), Morii et al.
patent: 4993917 (1991-02-01), Kulle et al.
patent: 5028204 (1991-07-01), Kulle et al.
patent: 5046151 (1991-09-01), Yamamura
patent: 5104284 (1992-04-01), Hustak, Jr. et al.
patent: 5141389 (1992-08-01), Bear et al.

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