Invention Grant
- Patent Title: Generating electromagnetic forces in large air gaps
- Patent Title (中): 在大气隙中产生电磁力
-
Application No.: US12610766Application Date: 2009-11-02
-
Publication No.: US08378543B2Publication Date: 2013-02-19
- Inventor: Alexei V. Filatov
- Applicant: Alexei V. Filatov
- Applicant Address: US CA Yorba Linda
- Assignee: Calnetix Technologies, L.L.C.
- Current Assignee: Calnetix Technologies, L.L.C.
- Current Assignee Address: US CA Yorba Linda
- Agency: Fish & Richardson P.C.
- Main IPC: H02K7/09
- IPC: H02K7/09

Abstract:
An electromagnetic actuator generates electromagnetic forces across large radial gaps to support a body. The actuator has an actuator target having a rotational axis, and a target magnetic element arranged circumferentially around the rotational axis that has inner and outer magnetic poles. A cylindrical soft-magnetic target pole is magnetically coupled to the outer cylindrical magnetic pole of the target magnetic element. An actuator base includes radial poles arranged circumferentially around and radially spaced apart from the cylindrical soft-magnetic target pole. The radial poles and the cylindrical soft-magnetic target pole are magnetically coupled and define a plurality of magnetic control circuits. Control coils around the radial poles are configured to produce magnetic fluxes in the magnetic control circuits. The target magnetic element, the cylindrical soft-magnetic target pole, and the radial poles are magnetically coupled and define a magnetic bias circuit, the magnetic element producing magnetic flux in the magnetic bias circuit.
Public/Granted literature
- US20110101905A1 GENERATING ELECTROMAGNETIC FORCES IN LARGE AIR GAPS Public/Granted day:2011-05-05
Information query