Ultra-high speed permanent magnet axial gap alternator with multiple stators
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 magnets. 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. 6 figs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7500353
- Application Number:
- ON: DE91011635; PPN: US 7-500353
- OSTI ID:
- 5860840
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALTERNATORS
DESIGN
DYNAMIC LOADS
ELECTRIC POTENTIAL
LOAD MANAGEMENT
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETS
OPERATION
ORIENTATION
PROCESS CONTROL
ROTORS
SIZE
STATORS
VELOCITY
CONTROL
ELECTRIC GENERATORS
MANAGEMENT
MATERIALS
420200* - Engineering- Facilities
Equipment
& Techniques