Hyundai WIA has been granted a patent for a driving force distribution device that features a lubrication path designed to efficiently supply lubricating oil to clutch units in a vehicle’s axle. The design minimizes the length of lubrication paths while maximizing their size for improved performance. 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 July 2024 was 34%. Grant share is based on the ratio of number of grants to total number of patents.
Driving force distribution apparatus with lubrication path for clutches
The patent US12025190B2 describes a driving force distribution apparatus designed for vehicles, specifically focusing on the functionality of a clutch unit associated with first and second driveshafts. This apparatus operates by controlling the operation units to effectively distribute and transmit driving force from a driving gear to the respective driveshafts. A key feature of this invention is its lubrication path, which facilitates the supply of lubricating oil from an external oil inlet into the hub of each clutch unit. The lubrication is achieved through a series of strategically placed oil holes and flow paths that connect various components, including the cylinder of the operation units and the drum of each clutch unit, ensuring efficient lubrication throughout the system.
Further detailing the lubrication mechanism, the claims outline multiple flow paths that guide the lubricating oil through the apparatus. These include a first flow path between the cylinder's external surface and the supporting bearing, a second flow path through a tooth-shaped oil inlet groove, and additional paths that lead to the hub via oil holes in the drum. The design incorporates a cage-integrated thrust bearing and features such as oil grooves positioned at specific intervals to enhance oil distribution. Additionally, the apparatus includes a series of seal rings and oil seals that create an oil chamber, ensuring that the lubricating oil remains contained and effectively circulated. The integration of these components aims to improve the overall performance and reliability of the driving force distribution system in vehicles.
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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.
