BorgWarner has been granted a patent for a turbocharger turbine with a variable turbine geometry cartridge that separates exhaust gas flows from different engine cylinders. The design includes fixed separating blades and guide vanes to optimize turbine wheel reaction to individual exhaust gas pulses. GlobalData’s report on BorgWarner 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 BorgWarner, Turbocharger bearings was a key innovation area identified from patents. BorgWarner's grant share as of May 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Cartridge for turbocharger turbine with flow separation means
A recently granted patent (Publication Number: US12012861B2) discloses a turbocharger turbine with a unique design aimed at optimizing engine performance. The turbine housing includes a divided volute that receives exhaust gas flows from an engine, keeping them separated by cylinder or cylinder groups. The turbine features a variable turbine geometry cartridge with guide vanes that pivot between open and closed positions, creating variable cross-section nozzles. These guide vanes are strategically arranged in the housing, with different lengths and edges, supported by an annular nozzle ring and a disk that form axial limitations. Additionally, the turbine includes fixed separating blades and flow separating guide vanes to ensure the continued separation of exhaust gas flows to the turbine wheel.
Furthermore, the turbocharger turbine cartridge includes a unison ring that allows for the synchronized pivoting of the guide vanes around their pivot axis when the unison ring is moved. This innovative design enhances the efficiency and performance of the turbine by controlling the flow of exhaust gases to the turbine wheel. The inclusion of fixed separating blades and flow separating guide vanes further contributes to maintaining the separation of exhaust gas flows from the divided volute to the turbine wheel. Overall, this patented turbocharger turbine design showcases advancements in turbine technology that can potentially improve engine efficiency and performance in various applications.
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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.
