BRP has been granted a patent for a limited-slip differential system that includes a unique design for distributing torque between axles. The system features a clutch pack, differential carrier, and pressure system for frictional engagement. The design includes lubrication channels for efficient lubrication of clutch plates. GlobalData’s report on BRP 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 BRP, Battery health monitoring was a key innovation area identified from patents. BRP's grant share as of February 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.

Limited-slip differential system with lubrication channel for clutch plates

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

A recently granted patent (Publication Number: US11920664B2) discloses a limited-slip differential system designed to distribute torque from a drive shaft to two axles based on the speed difference between them. The system includes a differential carrier with two portions connected by a clutch pack, allowing for frictional engagement of clutch plates to redistribute torque. The system features a unique lubrication channel design within the carrier portions to guide lubricant to the clutch plates effectively.

Furthermore, the patent details the pressure system of the differential, including a piston and a rotary pump to exert axial force on the clutch pack for engagement. The differential system is configured to allow for different angular velocities between the axles below a threshold speed difference, gradually redistributing torque to prevent slippage when the speed difference exceeds the threshold. The differential components, such as the piston and lubrication channels, are designed to optimize performance and ensure efficient torque distribution between the axles.

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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.