General Electric Company

Randy Scott Longtin

Robert Michael Zirin

Kiruba Sivasubramaniam Haran

Evangelos Trifon Laskaris

Bharat S Bagepalli

Patrick Lee Jansen

John Saunders Stevenson

Ernst Wolfgang Stautner

Fulton Jose Lopez

Richard Nils Dawson

Murtuza Lokhandwalla

Ruben Jeevanasan Fair

Mark John DeBlock

Suyu Hou

William Cook Livingood, Iii

Iii William Cook Livingood

Mark John Deblock

A cryocooler assembly for cooling a field winding of an electrical machine having an axis of rotation is provided. The assembly includes a cryocooler and a reservoir coupled in flow communication to the cryocooler and configured to contain a cooling agent. A flow assembly is coupled in flow communication to the reservoir. The flow assembly includes a first flow loop coupled in flow communication to the reservoir; a second flow loop coupled in flow communication to the reservoir; and a plurality of flow members coupled in flow communication to the first flow loop and the second flow loop and coupled to the field winding. Each flow member is configured to thermosiphon the cooling agent in a first state from the reservoir and in a second state to the reservoir.

Cooling assembly for electrical machines and methods of assembling the same

An electrical machine stator is disclosed that includes a stack of laminations configured to be assembled together so as to define at least one stator tooth. The stack of laminations may include a plurality of nesting laminations and a plurality of shim laminations. Each nesting lamination may include a first edge section, a second edge section and a middle section extending between the first and second edge sections. At least one of the first edge section and the second edge section of each nesting lamination may be configured to be engaged against at least one of the first edge section and the second edge section of an adjacent nesting lamination when the stack of laminations is assembled together. Additionally, at least one shim lamination may be disposed between each pair of adjacent nesting laminations.

Lamination stack for an electrical machine stator

The present disclosure relates to wind power generation systems having a segmented stator with a structural element and a plurality of coils. The wind power generation systems also include a rotor adapted to be rotated by wind to induce current in the plurality of coils and a lamination stack having a plurality of lamination plates disposed about the plurality of coils and a dovetail recess formed in the lamination stack. The wind power generation systems also include a dovetail bar adapted to be received by the dovetail recess and adjusted by a bolt to engage the lamination stack and the structural element of the segmented stator to form a torque transfer interface. Torque is adapted to be transferred from the lamination stack to the segmented stator via friction at the interface.

Wind power generation systems including segmented stators

A system for controlling gas leakage in a solids delivery system is provided. The system includes a bulk solids pump comprising an inlet for a particulate material and an outlet for discharge of said particulate material. The system also includes a buffer gas channel configured to impede backflow of process gas into the bulk solids pump, such as from a downstream system or process. The system further includes a pressure differential system configured to control a flow rate of the buffer gas and maintain a positive differential in pressure between the buffer gas and the process gas.

System and method for eliminating process gas leak in a solids delivery system

An electric machine and a stator assembly include a segmented stator having stator portions. Each stator portion includes end plates arranged axially on opposing sides of the stator portion, support plates arranged interior to the end plates, stator laminations arranged between the support plates, and stabilizing elements coupling the end plates and the support plates together. Each of the stabilizing elements has a dovetail portion coupled to the end plates and to the support plates. Connectors are provided to connect the stator portions of the segmented stator together.

Segmented stator assembly

A deflection resistant wind turbine generator having a stator arranged about an axis and a rotor operably mounted with respect to the stator to generate electricity. The rotor is rotatably communicating with wind turbine blades rotating substantially about the axis and the rotor and the stator are configured to maintain an airgap therebetween. The stator and the rotor have selectively engageable surfaces that maintain a substantially stable airgap and permit rotation of the rotor during engagement. The engageable surfaces engage when the rotor deflects to a predetermined amount of deflection.

Wind turbine direct drive airgap control method and system

Growing community of inventors

Schenectady, NY, United States of America

Randy Scott Longtin