Fujitsu General has been granted a patent for a rotary compressor that enhances energy efficiency and reliability. The design includes an oil groove to improve sliding performance and sealability in the working chamber. This innovation aims to optimize compressor performance in various applications. GlobalData’s report on Fujitsu General 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 Fujitsu General, Smart climate control systems was a key innovation area identified from patents. Fujitsu General's grant share as of January 2024 was 15%. Grant share is based on the ratio of number of grants to total number of patents.
Rotary compressor with improved sliding performance and sealability
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A recently granted patent (Publication Number: US11885334B2) discloses a rotary compressor design that includes a motor and compression unit housed in a sealed container. The compression unit features an annular cylinder with a vane groove, an end plate, an annular piston driven by a rotating shaft, a vane dividing the working chamber, a discharge port, and a suction port. Notably, an oil groove is strategically positioned to facilitate lubrication within the working chamber. The design also allows for the arrangement of multiple compression units with corresponding oil grooves, enhancing the overall efficiency and functionality of the compressor.
Furthermore, the patent details the specific configurations and interactions within the compressor, such as the exposure of the oil groove in the working chamber and its coverage by the annular piston at certain positions. These features contribute to the smooth operation and maintenance of the compressor, ensuring optimal performance and longevity. By incorporating innovative elements like the oil groove and multiple compression units, the patented rotary compressor design offers a practical solution for various applications requiring reliable and efficient compression technology.
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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.
