Ultra-high speed permanent magnet axial gap alternator with multiple stators
Patent
·
OSTI ID:867725
- Oak Ridge, TN
- Knoxville, TN
An ultra-high speed, axial gap alternator that can provide an output to a plurality of loads, the alternator providing magnetic isolation such that operating conditions in one load will not affect operating conditions of another load. This improved alternator uses a rotor member disposed between a pair of stator members, with magnets disposed in each of the rotor member surfaces facing the stator members. The magnets in one surface of the rotor member, which alternate in polarity, are isolated from the magnets in the other surface of the rotor member by a disk of magnetic material disposed between the two sets of magents. In the preferred embodiment, this disk of magnetic material is laminated between two layers of non-magnetic material that support the magnets, and the magnetic material has a peripheral rim that extends to both surfaces of the rotor member to enhance the structural integrity. The stator members are substantially conventional in construction in that equally-spaced and radially-oriented slots are provided, and winding members are laid in these slots. A unit with multiple rotor members and stator members is also described.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4996457
- OSTI ID:
- 867725
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ultra-high speed permanent magnet axial gap alternator with multiple stators
High speed internal permanent magnet machine and method of manufacturing the same
Stator structure for superconducting ac generator
Patent
·
Mon Feb 25 23:00:00 EST 1991
·
OSTI ID:6075475
High speed internal permanent magnet machine and method of manufacturing the same
Patent
·
Tue Sep 13 00:00:00 EDT 2011
·
OSTI ID:1027262
Stator structure for superconducting ac generator
Patent
·
Wed Sep 12 00:00:00 EDT 1973
·
OSTI ID:4315101
Related Subjects
/310/
affect
alternate
alternator
axial
axial gap
conditions
construction
conventional
described
disk
disposed
embodiment
enhance
equally-spaced
extends
facing
gap
gap alternator
improved
integrity
isolated
isolation
laid
laminated
layers
load
loads
magents
magnet
magnetic
magnetic material
magnets
material
material disposed
multiple
multiple stator
non-magnetic
non-magnetic material
operating
operating condition
operating conditions
output
pair
peripheral
permanent
permanent magnet
plurality
polarity
preferred
preferred embodiment
provide
provided
providing
providing magnetic
radially-oriented
rim
rotor
sets
slots
speed
stator
stators
structural
structural integrity
substantially
support
surface
surfaces
ultra-high
ultra-high speed
unit
winding
affect
alternate
alternator
axial
axial gap
conditions
construction
conventional
described
disk
disposed
embodiment
enhance
equally-spaced
extends
facing
gap
gap alternator
improved
integrity
isolated
isolation
laid
laminated
layers
load
loads
magents
magnet
magnetic
magnetic material
magnets
material
material disposed
multiple
multiple stator
non-magnetic
non-magnetic material
operating
operating condition
operating conditions
output
pair
peripheral
permanent
permanent magnet
plurality
polarity
preferred
preferred embodiment
provide
provided
providing
providing magnetic
radially-oriented
rim
rotor
sets
slots
speed
stator
stators
structural
structural integrity
substantially
support
surface
surfaces
ultra-high
ultra-high speed
unit
winding