Synchronous motor with sinusodial torque variation in each phase
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 2, 1990
Grant Date -
N/A
app pub date -
Jun 24, 1988
filing date -
Jun 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In synchronous electric motors of the type having a movable multipolar permanent magnet member and a stator comprising magnetic circuits coupled to a control coil. The magnetic circuits form an air-gap of variable height in which the permanent magnet member is movably arranged. The improvement defines the height of the air-gap as a function of the position of the movable member, taking into account various design parameters of the motor, in order to obtain a purely sinusoidal variation of the torque produced in each phase of the motor by a constant control current.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully