BorgWarner. has filed a patent for a charging device for internal combustion engines or fuel cells. The device includes a compressor with a unique thrust bearing design that allows for fluid flow from the compressor through the bearing gap. The invention aims to improve efficiency and performance. 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 January 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Patent filed for a charging device with a thrust bearing

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

A recently filed patent (Publication Number: US20240035395A1) describes a charging device designed for use in internal combustion engines or fuel cells. The device includes a compressor with a compressor housing and wheel, a shaft connected to the wheel, and a bearing housing with a thrust bearing for axial mounting of the shaft. The thrust bearing features a bearing gap that allows a fluid stream from the compressor to flow through it in a radial direction during operation. Additionally, the device includes return channels to discharge the fluid stream out of the thrust bearing. The thrust bearing is connected to the pressure side of the compressor, ensuring efficient operation.

Furthermore, the patent details the configuration of the thrust bearing, which includes a thrust bearing plate fixed to the shaft and a thrust bearing chamber with an inner circumferential face. A sealing element with a circumferential groove is provided to maintain proper functioning between the inner circumferential face and the thrust bearing plate. The design of the device allows for effective fluid flow and discharge, enhancing the overall performance of the charging device in internal combustion engines or fuel cells.

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