Linamar has been granted a patent for a differential designed for rear-wheel-drive vehicles. The innovative design includes a plastic deflector with a stainless steel running surface that abuts the pinion seal, enhancing performance and durability. GlobalData’s report on Linamar 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 Linamar, Battery pack swapping was a key innovation area identified from patents. Linamar's grant share as of January 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.

Differential for rear wheel drive vehicle with plastic deflector

Source: United States Patent and Trademark Office (USPTO). Credit: Linamar Corp

A recently granted patent (Publication Number: US11873889B2) discloses a differential for a rear-wheel-drive vehicle that includes a unique design to improve functionality. The differential comprises a differential case, a pinion shaft with a pinion seal, and a plastic deflector with a disc-shaped main body and a stainless steel ring. The plastic deflector is assembled on the pinion shaft in a way that ensures the stainless steel running surface abuts the axial lip of the pinion seal, forming a seal between the pinion shaft and the differential case.

Furthermore, the patent details additional features such as the use of a glass-filled plastic material, a flange with a flange passageway, and a recessed ledge for assembly. The plastic deflector is designed to engage with the flange to form a flange/deflector assembly, which, when assembled with the pinion shaft and differential case, effectively bridges the axial gap. The stainless steel ring on the plastic deflector can be molded-in, embedded, or mechanically fastened to the disc-shaped main body, providing durability and stability to the assembly. Overall, the patented design aims to enhance the performance and longevity of differentials in rear-wheel-drive vehicles through innovative engineering and material selection.

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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.