Patent ID: 8011666

Claim:
A seal with a brush, comprising: non-metallic textile insulators, capable of providing a seal for an air gap between a rotor and a stator; a container containing the textile insulators, the container being fixable on the rotor or on the stator and the container including an internal envelope on which the textile insulators are wound and an external envelope which surrounds the textile insulators, distal ends of the textile insulators being extended radially outward toward the rotor or the stator, an upstream ring and a downstream ring placed between the external envelope and the textile insulators, the upstream ring and the downstream ring including an arcuate portion to surround the textile insulators wound on the internal envelope, and an opening from which the distal ends of the textile insulators protrude, the textile insulators being subjectable, on one side, to an upstream pressure, and on another side, to a downstream pressure, the upstream pressure being greater than the downstream pressure, and the distal ends of the textile insulators configured to bend at an angle to the downstream side of the seal where the pressure is lower when the ends are supported on the stator or on the rotor.