Shimadzu has been granted a patent for a gear pump or motor designed to enhance liquid filling in tooth grooves. The invention features a unique suction-side communication path that connects a closed space formed by meshing gears to the suction passage, optimizing liquid flow within the gear storage chamber. GlobalData’s report on Shimadzu 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 Shimadzu, Image segmentation techniques was a key innovation area identified from patents. Shimadzu's grant share as of June 2024 was 39%. Grant share is based on the ratio of number of grants to total number of patents.
Gear pump with improved liquid filling mechanism
The patent US12044238B2 describes a gear pump or gear motor designed to enhance the efficiency of liquid transfer through a unique suction-side communication path. This device features a casing that houses a gear storage chamber, where a pair of intermeshing gears—comprising a drive gear and a driven gear—operate to move liquid from an external source into the chamber via a suction passage. The innovation lies in the suction-side communication path, which connects a closed space formed by the meshing gears to one of the tooth grooves of the gears. This path is strategically positioned to optimize liquid flow, ensuring that it is not directly connected to the second space formed by the gear's tooth grooves, thereby preventing backflow and enhancing performance.
Further claims detail the design variations of the suction-side communication path, which can take on band or arc shapes, and may include features such as recesses in side plates or the casing itself. These configurations allow for the effective transition of liquid states from compressed to expanded as the gears rotate. Additionally, the patent outlines the inclusion of a discharge-side communication path that facilitates the movement of liquid from the compressed space to the discharge passage. Overall, the claims present a comprehensive approach to improving the functionality of gear pumps and motors, focusing on the intricate design of the suction and discharge mechanisms to enhance liquid transfer efficiency.
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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.
