ELECTROMECHANICAL FLYWHEEL WITH EVACUATION SYSTEM

摘要

An electromechanical flywheel machine includes a flywheel mass enclosed in an evacuable housing.

主权项

1. An electromechanical flywheel with a molecular drag pump comprising:
a cylindrical motor-generator rotor surrounding a motor-generator stator; the motor-generator rotor encircled by and fixed to a cylindrical flywheel mass; a central axis about which the motor-generator rotor and flywheel mass rotate; a planar drag pump including a labyrinth ring with an annular working surface; the working surface in a plane about perpendicular to the central axis and centered on the central axis; the working surface spaced apart from an end surface of the flywheel mass by a drag pump gap; and, an elevator that moves the working surface toward the flywheel mass end surface when the gap is larger than a first selected dimension and that moves the working surface away from the flywheel mass end surface when the gap is smaller than a second selected dimension.