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US 2008/0073993 A1Published application
Magnetic bearing
OwnerChristopher K. Sortore, Robert Jett Field +2inventors
InventorsChristopher K. Sortore, Robert Jett Field, Victor Iannello, Kirk Treubert
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Abstract
Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.
Claims21
A system comprising:
- a rotor comprising:
- a radial magnetic bearing rotating portion comprising:
- a hub;
- a plurality of laminations;
- a sensor target ring;
- a first touchdown journal;
- and
- a second touchdown journal;
- and
- a stator comprising:
- a radial magnetic bearing static portion comprising:
- three or more electromagnets, each electromagnet comprised by an electromagnet sector;
- a first support plate adapted to support said electromagnet sectors;
- a second support plate adapted to support said electromagnet sectors;
- three or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said three or more electromagnets, each of said three or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a pair of said three or more electromagnets;
- a first annular circuit board adapted to accept a communicative connection from a network;
- a second annular circuit board adapted to provide control signaling to said three or more pulse width modulated amplifiers;
- a plurality of position sensors adapted to detect a radial position of said rotor, each of said plurality of position sensors located between a pair of three or more electromagnets;
- a touchdown ring adapted to separate said rotor from said stator when no electrical energy is applied to said radial magnetic bearing;
- and
- a thrust magnetic bearing static portion comprising:
- two or more electromagnets;
- two or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said two or more electromagnets, each of said two or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a corresponding pair of said two or more electromagnets;
- a first annular circuit board adapted to accept a communicative connection from a network;
- and
- a second annular circuit board adapted to provide control signaling to said two or more pulse width modulated amplifiers.
23 more elements
A system comprising:
- a stator comprising:
- a first radial magnetic bearing static portion comprising:
- three or more electromagnets, each electromagnet comprised by a modular electromagnet sector;
- and
- three or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said three or more electromagnets, each of said three or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a pair of said three or more electromagnets.
2 more elements
A system comprising:
- a stator comprising:
- a radial magnetic bearing static portion comprising:
- three or more electromagnets, each electromagnet comprised by a modular electromagnet sector;
- and
- an annular circuit board adapted to accept a communicative connection from a network, said annular circuit board adapted to communicate information regarding said radial magnetic bearing static portion via said network.
2 more elements
A system comprising:
- a stator comprising:
- a thrust magnetic bearing static portion comprising:
- two or more electromagnets, each electromagnet comprised by a modular electromagnet sector;
- and
- two or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said two or more electromagnets, each of said two or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a corresponding pair of said two or more electromagnets.
2 more elements
A system comprising:
- a stator comprising:
- a support plate adapted to transfer greater than fifty percent of heat provided from an axial face of said stator, said heat generated by components comprising:
- three or more electromagnets comprised by a radial magnetic bearing static portion, each electromagnet comprised by a modular electromagnet sector;
- and
- three or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said two or more electromagnets, each of said two or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a corresponding pair of said two or more electromagnets.
2 more elements
Dependencies are inferred from the claim text.