Flexible magnetic rubber brush seal for generators
AssigneeGeneral Electric Company
InventorsWei Tong, Robert Russell Mayer, Mahmut Faruk Aksit
Life of this patent
Estimating the term…
Abstract
A flexible magnetic brush seal is employed as a low flow fluid film seal and/or a diffusion and mass transfer prevention seal in a hydrogen generator to seal between a hydrogen atmosphere and a fluid on an opposite side of the seal. The brush seal is formed of a magnetic rubber flexible material, enabling the seal to be flexed and altered in dimension to fit a number of different sealing environments of different dimensions. The magnetic properties of the brush seal enable temporary securement of the brush seal to a brush seal holder prior to final securement.
Claims20
A hydrogen cooled generator having a rotor, a component part and a seal sealing between said rotor and said component part for segregating an at least in part hydrogen atmosphere on one side of said seal and a cavity on an opposite side thereof, said seal including a brush seal extending between said component part and the rotor, said brush seal including a brush seal body and a plurality of bristles projecting from said body with tips thereof engaging the rotor, said brush seal body being formed of a flexible magnetic material.
A hydrogen cooled generator having a rotor and a seal sealing between said rotor and a housing wall for segregating a hydrogen atmosphere on one side of said seal and a seal cavity on an opposite side thereof containing a gas of lesser purity than the hydrogen atmosphere, said seal including a brush seal extending between said component part and the rotor, said brush seal including a brush seal body and a plurality of bristles projecting from said body with tips thereof engaging the rotor and preventing diffusion and mass transfer of the hydrogen atmosphere on said one side of said wall into said seal cavity, said brush seal body being formed of a flexible magnetic material.
A hydrogen cooled generator having a rotor and a seal sealing between said rotor and a housing wall with at least in part a hydrogen atmosphere on one side of said seal and a bearing cavity containing a fluid on an opposite side thereof, said seal including a low flow fluid film brush seal extending between said wall and the rotor, said brush seal including a brush seal body and a plurality of bristles projecting from said body with tips thereof engaging the rotor for substantially segregating the hydrogen atmosphere and the fluid in the bearing cavity, said brush seal body being formed of a flexible magnetic material.
Dependencies are inferred from the claim text.