Garrett Motion has been granted a patent for a turbocharger turbine wheel design with specific blade and hub profile features. The design aims to optimize performance by strategically placing local minimum and maximum radii along the axial direction of the hub profile. GlobalData’s report on Garrett Motion gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Garrett Motion, Photovoltaic drones was a key innovation area identified from patents. Garrett Motion's grant share as of January 2024 was 77%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for a turbocharger turbine wheel design

Source: United States Patent and Trademark Office (USPTO). Credit: Garrett Motion Inc

A recently granted patent (Publication Number: US11885238B2) discloses a turbocharger turbine wheel design with specific features aimed at improving performance. The turbine wheel includes a hub with blades extending outwardly, each blade featuring a unique hub profile with distinct radius variations along the axial direction from the backdisk to the nose. The hub profile includes local minimum and maximum radii at specific axial coordinate positions, enhancing the aerodynamic efficiency of the turbine wheel.

Furthermore, the patented turbocharger turbine wheel design incorporates features such as radial bulges, fillets transitioning to both pressure and suction sides of the blades, and specific blade root thickness variations. The design also allows for different types of leading edges, including mixed-flow and radial-flow configurations. With a blade number ranging from greater than three to less than thirty, the turbine wheel's hub profile is characterized by an S-shape, non-monotonic radial coordinate positions, and specific continuity criteria. Overall, the patented design aims to reduce mass while improving performance compared to traditional turbine wheel designs, making it a significant advancement in turbocharger technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.