NOV. has filed a patent for a rotor bearing system designed to connect a progressing cavity machine to an external device. The system includes a housing with bearings to limit eccentric motion during rotation. This innovation aims to improve the efficiency and performance of such machines. GlobalData’s report on NOV 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 NOV, Fall risk prediction was a key innovation area identified from patents. NOV's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Rotor bearing system for coupling progressing cavity machine to external device
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The patent application (Publication Number: US20240026738A1) describes an external bearing system designed to connect a progressing cavity machine to an external device. The system includes a housing with a bore and bearings, as well as a continuous shaft member connecting the driveshaft of the external device to the cylindrical rotor head of the machine. The bearings are strategically placed to limit eccentric motion during rotation, ensuring stability and efficiency in operation.
Furthermore, the system features couplers at both ends of the shaft member to securely attach it to the rotor head and the driveshaft. The housing is equipped with connecting features to engage the stator of the machine and the driveshaft housing of the external device, maintaining alignment and structural integrity. The choice of materials for the bearings, whether elastomeric, carbide, or metal, is crucial in reducing wear and optimizing performance. Overall, the method outlined in the patent application provides a comprehensive approach to managing eccentric motion in a progressing cavity machine, enhancing its functionality and longevity.
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