General Electric Company

John Augustus Halbohm

Osman Saim Dinc

George Ernest Reluzco

Raymond Edward Chupp

Kenneth Lorenzo Parks

Hui Kuang

Gayle Hobbs Goetze

A brush seal assembly is radially and axially repositionable relative to stationary and rotating components. Shim packs whose thickness can be reduced by peeling adhesively attached foil layers from the shim packs are used to provide both axial and radial repositioning. In another form, a plurality of set screws may be threaded into a mounting member for the brush seal assembly to controllably space the brush seal from the rotating component. In a further form, an eccentric cam is rotated to reposition the brush seal assembly radially inwardly or outwardly with shim packs being used to reposition the brush seal in an axial direction.

Repositionable brush seal for turbomachinery

The method of lifting a generator rotor shaft (12) off its bearing (10) to enable breakaway during start-up and for maintenance purposes includes providing a hydraulic cylinder (22) with a pair of rollers (28) mounted on the cylinder piston (32) engageable with the shaft (12). At start-up, the cylinder is actuated to elevate the shaft a maximum distance of about 0.005 inches to enable a film of lubricating oil to flow between the shaft journal and the bearing pads. For maintenance purposes, and after removal of the upper bearings, the shaft can be elevated by actuation of the jack a distance sufficient to enable removal of the lower bearings from the pedestal.

Method for lifting a generator rotor shaft to facilitate shaft breakaway

Growing community of inventors

Esperance, NY, United States of America

John Augustus Halbohm