Rotary positioning apparatus and associated methods, such as for a carburetor choke valve
First Claim
1. Rotary positioning apparatus for a member movable through an angle of rotation of less than 360°
- , said apparatus comprising a rotor including windings thereon, a stator including a permanent magnet establishing a magnetic circuit providing magnetic flux through which said rotor is movable, said rotor and stator constituting a DC motor, said stator including a stationary hollow shaft, bearing means rotatably supporting said rotor on said hollow shaft, said rotor including a neck, means on said neck for coupling the neck with the member to be moved, means for energizing said windings on the rotor for producing rotation of the rotor, the latter means comprising a plurality of flexible current carrying wires extending through said hollow shaft and through slot means provided in said neck to said windings, said hollow shaft having opposite open ends at one of which said wires enter the hollow shaft and at the other of which said wires exit from said shaft and extend through said slot means to said windings, said wires undergoing twisting within said stationary shaft as said rotor rotates with respect to said stator.
2 Assignments
0 Petitions
Accused Products
Abstract
Rotary positioning apparatus for a member movable through an angle of rotation of less than 360° comprising a rotor including windings thereon and a stator including a permanent magnet establishing a magnetic circuit providing magnetic flux through which the rotor is movable, the rotor and stator constituting a DC motor. The stator includes a stationary hollow shaft on which the rotor is rotatably supported by bearings. The rotor includes a neck adapted for being coupled with the member to be moved. A plurality of flexible current carrying wires extend through the hollow shaft and through slots provided in the neck to the windings for energization thereof. The hollow shaft has opposite open ends at one of which the wires enter the hollow shaft and at the other of which the wires exit from the shaft and extend through the slots to the windings such that the wires undergo twisting within the confines of the shaft as the rotor rotates with respect to the stator.
36 Citations
28 Claims
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1. Rotary positioning apparatus for a member movable through an angle of rotation of less than 360°
- , said apparatus comprising a rotor including windings thereon, a stator including a permanent magnet establishing a magnetic circuit providing magnetic flux through which said rotor is movable, said rotor and stator constituting a DC motor, said stator including a stationary hollow shaft, bearing means rotatably supporting said rotor on said hollow shaft, said rotor including a neck, means on said neck for coupling the neck with the member to be moved, means for energizing said windings on the rotor for producing rotation of the rotor, the latter means comprising a plurality of flexible current carrying wires extending through said hollow shaft and through slot means provided in said neck to said windings, said hollow shaft having opposite open ends at one of which said wires enter the hollow shaft and at the other of which said wires exit from said shaft and extend through said slot means to said windings, said wires undergoing twisting within said stationary shaft as said rotor rotates with respect to said stator.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
Specification