BorgWarner. has been granted a patent for a torque-limiting coupler designed to connect an electric motor to a vehicle’s rotatable input. The coupler features a rigid frame and an elastic member that maintains shape under low torque but allows angular displacement when torque exceeds a predetermined limit. 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 July 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.
Torque-limiting coupler for electric motor and vehicle input
The granted patent US12071995B2 describes a torque-limiting coupler designed to connect an electric motor to the rotatable input of an internal combustion engine. The coupler features a rigid frame with two elastic member receiving features and an elastic member that engages either the rotatable input or the output shaft of the electric motor. This design allows the elastic member to maintain its shape and inhibit angular displacement between the two components when the torque is below a predetermined limit. However, it also permits angular and radial misalignment, ensuring flexibility in the connection. The elastic member is structured to slide within the receiving features, allowing for movement when torque exceeds the set limit, thus preventing potential damage to the system.
Additionally, the patent outlines that the elastic member and the rigid frame can be formed as unitary structures, enhancing durability and performance. The coupler is designed to accommodate axial misalignment and includes specific engagement portions that facilitate the sliding mechanism of the elastic member. The coupler can also be adapted for use with a camshaft phaser, maintaining the same functional principles. Overall, the torque-limiting coupler provides a robust solution for connecting electric motors to internal combustion engines, ensuring both stability under normal operating conditions and flexibility under high torque scenarios.
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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.
