General Electric Company

The United States of America As Represented by the United States

George M Rosenberry, Jr

Peter G Frischmann

Howard H Liebermann

Eike Richter

John Andrew Mallick

A magnetic wedge for use in toothed stators holds the stator windings in the slots formed between the teeth of the stator. The magnetic slot wedge comprises a stack of magnetic material with a width corresponding to the width of the slot. The laminations each have central bridge portions connecting a first and second magnetic region, the bridge portion saturating during machine operation. The bridge and the first and second magnetic regions define an opening which, when the laminations are stacked, form a channel having a narrowed entrance. A fiberglass rod fits inside the channel and provides axial stiffness to the stacked laminations which clamp on the fiberglass rod.

Magnetic slot wedge with low average permeability and high mechanical

A dynamoelectric machine stator formed of first and second concentrically mounted cylinders at least one of which is made of coiled amorphous metal ribbon. One of the cylindrical portions of the stator is formed of an edgewound helical ribbon in which the respective turns are dished into a conical shape to provide either a uniform outer diameter for the cylinder within a close range of tolerances that affords a low reluctance joint between the cylinders when they are concentrically mounted, or an accurate alignment of winding-receiving slots in adjacent turns of the dished ribbon. According to one aspect of the invention, a method for manufacturing a helically wound, amorphous metal stator is provided.

Method of making a dynamoelectric machine stator having concentric

A dynamoelectric machine stator is formed of an amorphous metal yoke or back iron portion, consisting of either a spirally wound coil of amorphous metal ribbon or an edge-wound helix of such ribbon in which the respective turns are stacked together to define a cylinder, in combination with a plurality of separately formed amorphous metal teeth that are mounted at spaced intervals on the interior surface of the yoke to define a plurality of spaced winding-receiving slots that each extend axially between pairs of the teeth. The teeth are each secured in operating position on the yoke by being both bonded directly to it and by the supporting relationship established between the teeth and abutting slot liners, energizing windings and a cured insulating coating which is applied to the stator after the energizing winding is positioned in the stator winding slots. In various disclosed embodiments of the invention a number of different tooth configurations and back iron arrangements are disclosed in combination with different arrangements of slot liners and energizing winding supports for holding the teeth in their respective fixed positions on the stator yoke.

Dynamoelectric machine stator having articulated amorphous metal

Dynamoelectric machine stator having concentric amorphous metal

Metallic ribbon having cutout patterns therein is provided in continuous helical form. The cutout patterns may be situated to intersect either or both of the ribbon edges or may be situated entirely within the ribbon. The helical ribbon with the cutout patterns may additionally have a nesting, or self-stacking, feature.

Patterned helical metallic ribbon for continuous edge winding

Metallic ribbon having cutout patterns therein is fabricated in continuous helical form by directing a melt stream or jet onto a rapidly moving patterned substrate surface.

Method of making patterned helical metallic ribbon for continuous edge

Metallic ribbon is provided in continuous helical form. The ribbon may be nested and/or manufactured with a continuous pattern of predetermined geometry in the inner and/or the outer edge as well as in the interior of the ribbon.

Helical metallic ribbon for continuous edge winding applications

An apparatus including a first part, a second part, a plurality of spaced apertures in the first part and a plurality of holding devices for holding the first part against the second part. The plurality of apertures are each selectively sized so a first of the apertures forms a close clearance fit with one of the holding devices on at least one diameter of the first aperture. A second of the apertures forms an equally close clearance fit, on one of its diameters, with a second of the holding devices, but forms a looser clearance fit with the second holding device on a second diameter thereof, which generally parallels a line between the first and second apertures. The remainder of the plurality of apertures each form a substantially looser fit with an associated holding device than is formed by either of said close clearance fits. In the method of the invention the first part is positioned adjacent the second part, a holding device is inserted through the first aperture and tightened to a final torque value, the second part is then rotated around the first holding device to enable a second holding device to be inserted through the second aperture without interference therewith, the second holding device is then tightened to a final torque value, and the remaining holding devices are each inserted, respectively, through the remaining apertures and tightened to thereby join the second part to the first part in a predetermined alignment therewith.

Apparatus having positioning and mounting means for joining two parts

Metallic ribbon is fabricated in continuous helical form by directing a melt stream or jet onto a rapidly moving substrate surface. The axis of the crucible along which the melt stream or jet is cast is defined by an inverted cone with apex at the point of crucible axis intersection with the substrate surface.

Growing community of inventors

Hendersonville, TN, United States of America

George M Rosenberry, Jr