Abstract: A generator connection ring support device includes a base, a first protruding member extending from the base, a second protruding member extending from the base substantially parallel to the first protruding member, a fastener hole extending through the base and the first protruding member, and a clamping hole extending through the base into the first slot. The clamping hole is configured to at least partly house a clamping element. The first and second protruding members define a first slot therebetween to receive a connection ring, each protruding member having a first end proximate the base and a second end distal the base, the first protruding member configured to be fastened to an end winding axial support at the distal end of the first protruding member, the first protruding member having a longitudinal axis, the fastener hole aligned with the longitudinal axis of the first protruding member.

Abstract: A seal ring assembly includes a first seal ring axially disposed from a second seal ring. The first seal ring has an axial face opposing an axial face of the second seal ring. A radial oil channel is defined between the two axial faces. Both seal rings have a tapered surface configured to contact a spring. The spring biases the seal rings away from each other via the tapered surface. Both seal rings are disposed in a radially inwardly directed channel. At least one of the seal rings have a plurality of protrusions that extend beyond the axial face. The protrusions are configured to create a passageway to allow oil to flow through the passageway and to allow at least one of the seal rings to move into a desired position by reducing static friction between the axial faces.

Abstract: A generator connection ring support device includes a base, a first protruding member extending from the base, a second protruding member extending from the base substantially parallel to the first protruding member, a fastener hole extending through the base and the first protruding member, and a clamping hole extending through the base into the first slot. The clamping hole is configured to at least partly house a clamping element. The first and second protruding members define a first slot therebetween to receive a connection ring, each protruding member having a first end proximate the base and a second end distal the base, the first protruding member configured to be fastened to an end winding axial support at the distal end of the first protruding member, the first protruding member having a longitudinal axis, the fastener hole aligned with the longitudinal axis of the first protruding member.

Abstract: A compression seal bracket for sealing a thermally moveable end of a generator cooler is disclosed. The bracket may include a unitary body including a first portion at an angle to a second portion with an integral curvilinear portion therebetween. Each portion may have: a seal ring engaging member for engaging the seal ring to compress the seal against the seal seat, a shim member configured to be coupled to the seal seat between the seal ring engaging member and the seal seat, the shim member having a predetermined thickness. The seal ring engaging member and the shim member may include a plurality of corresponding fastener openings, each opening for receiving a fastener for coupling to the seal seat. A related bracket system is also disclosed.

Abstract: A ripple spring includes a body including a central portion having a substantially sinusoidal shaped surface and a substantially planar end portion extending from each end of the central portion. A stator bar may include an armor layer including a novalac epoxy resin impregnated glass composite.

Abstract: A seal ring assembly includes a first seal ring axially disposed from a second seal ring. The first seal ring has an axial face opposing an axial face of the second seal ring. A radial oil channel is defined between the two axial faces. Both seal rings have a tapered surface configured to contact a spring. The spring biases the seal rings away from each other via the tapered surface. Both seal rings are disposed in a radially inwardly directed channel. At least one of the seal rings have a plurality of protrusions that extend beyond the axial face. The protrusions are configured to create a passageway to allow oil to flow through the passageway and to allow at least one of the seal rings to move into a desired position by reducing static friction between the axial faces.

Abstract: A laminated rotor and an electric machine including the laminated rotor are disclosed. In an embodiment, a rotor comprises a plurality of stacked laminations, wherein each lamination includes a plurality of radially extending slots arranged about a circumference of each of the plurality of laminations, and the plurality of radially extending slots in successive laminations in the stack are aligned. A stud member passes longitudinally through at least one hole in the lamination stack, and a plurality of coils are positioned within the plurality of slots. Fewer than all of the plurality of slots have a coil positioned therein, leaving at least three slots empty. Balance members may be placed in the slots that do not have a coil positioned therein to balance the rotor.

Abstract: A ripple spring includes a body including a central portion having a substantially sinusoidal shaped surface and a substantially planar end portion extending from each end of the central portion. A stator bar may include an armor layer including a novalac epoxy resin impregnated glass composite.

Abstract: A laminated rotor for an electric machine is disclosed. In an embodiment, the rotor comprises a plurality of stacked laminations. Each lamination includes a plurality of radially extending slots arranged about a circumference thereof, and a first chamfer on a surface of each of the slots, wherein the surface mates with a wedge. The first chamfer connects the surface and a first face of the lamination. A stud member passes longitudinally through a hole in the lamination stack, a first end flange member on a first end of the lamination stack, and a second end flange member on a second end of the lamination stack. A first fastener is affixed to a first end of each of the at least one stud member; and a second fastener affixed to a second end of each of the at least one stud member.

Abstract: A laminated rotor for an electric machine is disclosed. In an embodiment, the rotor comprises a plurality of stacked laminations. Each lamination includes a plurality of radially extending slots arranged about a circumference thereof, and a first chamfer on a surface of each of the slots, wherein the surface mates with a wedge. The first chamfer connects the surface and a first face of the lamination. A stud member passes longitudinally through a hole in the lamination stack, a first end flange member on a first end of the lamination stack, and a second end flange member on a second end of the lamination stack. A first fastener is affixed to a first end of each of the at least one stud member; and a second fastener affixed to a second end of each of the at least one stud member.

Abstract: A compression seal bracket for sealing a thermally moveable end of a generator cooler is disclosed. The bracket may include a unitary body including a first portion at an angle to a second portion with an integral curvilinear portion therebetween. Each portion may have: a seal ring engaging member for engaging the seal ring to compress the seal against the seal seat, a shim member configured to be coupled to the seal seat between the seal ring engaging member and the seal seat, the shim member having a predetermined thickness. The seal ring engaging member and the shim member may include a plurality of corresponding fastener openings, each opening for receiving a fastener for coupling to the seal seat. A related bracket system is also disclosed.

Abstract: A rotor and a dynamoelectric machine including a rotor are disclosed. In an embodiment, the rotor includes a rotor body having a plurality of axially extending slots disposed radially about the rotor body, and at least one coil having at least one turn positioned within each of the plurality of axially extending slots. The rotor further includes a plurality of subslots disposed in the rotor body such that each subslot extends axially through the rotor body parallel to an axis of rotation of the rotor body, and is in fluid communication with a radially inner end of a slot; a passageway extending substantially radially outwardly along each axially extending slot for cooling the at least one turn disposed in the slot; and a retaining member in each of the slots for retaining the at least one turn within the slot. Various embodiments provide ventilation via the passageway for cooling the rotor coils.

Abstract: A laminated rotor for an electric machine is disclosed. In an embodiment, the rotor comprises a plurality of stacked laminations. Each lamination includes a plurality of radially extending slots arranged about a circumference thereof, and a first chamfer on a surface of each of the slots, wherein the surface mates with a wedge. The first chamfer connects the surface and a first face of the lamination. A stud member passes longitudinally through a hole in the lamination stack, a first end flange member on a first end of the lamination stack, and a second end flange member on a second end of the lamination stack. A first fastener is affixed to a first end of each of the at least one stud member; and a second fastener affixed to a second end of each of the at least one stud member.

Abstract: A laminated rotor and an electric machine including the laminated rotor are disclosed. In an embodiment, a rotor comprises a plurality of stacked laminations, wherein each lamination includes a plurality of radially extending slots arranged about a circumference of each of the plurality of laminations, and the plurality of radially extending slots in successive laminations in the stack are aligned. A stud member passes longitudinally through at least one hole in the lamination stack, and a plurality of coils are positioned within the plurality of slots. Fewer than all of the plurality of slots have a coil positioned therein, leaving at least three slots empty. Balance members may be placed in the slots that do not have a coil positioned therein to balance the rotor.