Hyundai WIA has been granted a patent for a constant velocity joint for vehicles. The joint includes a hub housing, bearing assembly, power transmission member, and boot with a unique design to prevent foreign substances from entering the bearing assembly. GlobalData’s report on Hyundai WIA 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 Hyundai WIA, EV integrated thermal mgmt was a key innovation area identified from patents. Hyundai WIA's grant share as of February 2024 was 35%. Grant share is based on the ratio of number of grants to total number of patents.

Constant velocity joint for vehicle with improved sealing mechanism

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

A recently granted patent (Publication Number: US11912065B2) discloses a constant velocity joint designed for vehicles. The joint includes a hub housing, a bearing assembly, and a boot with a unique design to prevent foreign substances from entering the bearing assembly. The boot features a boot lip that protrudes towards the knuckle, creating a gap that hinders the penetration of foreign materials. The distance between the boot and the knuckle, as well as between the bearing assembly and the knuckle, is carefully controlled to optimize the protective function of the boot.

Furthermore, the patent details specific dimensions and features of the constant velocity joint, such as the length of the boot lip, the distance between components, and the presence of bearing seals. The design also includes a forming portion on the hub housing to press the inner race and a boot seat with a minimum thickness requirement. By incorporating these elements, the constant velocity joint aims to enhance the durability and performance of the vehicle's drivetrain system. The innovative features of this joint offer improved protection against contaminants, ultimately contributing to the longevity and efficiency of the vehicle's operation.

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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.