Abstract: A permanent magnet coupling having opposed magnetic coupling members, and including process fluid bearings and dual flow paths for process fluid providing temperature control.
Abstract: An electric motor of the type including a housing, a shaft extending through the housing, blower blades mounted on the shaft and an endplate mounted on the housing is improved due to the inclusion of a partial baffle formed with the endplate and extending toward and in proximity with the blower blades for forming a partial annular spaced interface with the blower blades.
Abstract: Electrical machines comprising a rotatable armature and permanent magnets surrounding and separated from the armature by air gaps having a length to width ratio not greater than 60:1 and a minimum width of 0.040 inch irrespective of the length to width ratio, thereby allowing cooling air to be circulated through the air gaps as well as through the annular gaps between the magnets. Such machines have a substantially higher steady state power output than permanent magnet machines of the same overall dimensions designed in accord with conventional techniques because of materially improved armature cooling.
Type:
Grant
Filed:
November 13, 1972
Date of Patent:
August 31, 1976
Assignee:
Rockwell International Corporation
Inventors:
Winston F. Z. Lee, James A. Hrivnak, John R. Speer