General Electric had five patents in advanced materials during Q2 2024. General Electric Co filed a patent for a rotor damping device for a turbomachine, which includes a first fluid damper and a second damper with a wire mesh to dampen vibration. Another patent discloses phosphor materials and devices containing a Mn4+ doped phosphor and rare earth containing Garnet phosphor in an ink composition. GlobalData’s report on General Electric gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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General Electric had no grants in advanced materials as a theme in Q2 2024.
Recent Patents
Application: Rotor damping devices for a turbomachine (Patent ID: US20240133426A1)
The patent filed by General Electric Co. describes a rotor damping device for a turbomachine that includes a first fluid damper and a second damper with a wire mesh. The first fluid damper can transition between a working condition and an interruption condition, during which the wire mesh of the second damper dampens the vibration of the turbomachine. The second damper can be configured in parallel or series with the first fluid damper, and a sidewall portion can constrain axial deflection and apply a preload to the wire mesh.
Additionally, the rotor damping device may include ball and roller bearings mounted on a squirrel cage, a film of fluid squeezed between non-rotating surfaces, and a damper housing with cavities containing damper oil and the wire mesh. The wire mesh can be made of metal or a shape memory material. The first fluid damper transitions to the interruption condition when the fluid runs out or is bottomed out. Overall, the rotor damping device aims to effectively dampen vibration in turbomachines using a combination of fluid and wire mesh dampers.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
