China Aerospace Science and Technology has patented a spoiling apparatus designed to autonomously trigger turbulent transitions in fluid flow. The system utilizes spoilers housed in grooves that eject under specific flow conditions, effectively managing flow resistance and enhancing control over turbulence in navigating bodies. GlobalData’s report on China Aerospace Science and Technology 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 China Aerospace Science and Technology, was a key innovation area identified from patents. China Aerospace Science and Technology's grant share as of July 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.

Autonomous turbulence transition triggering apparatus for vehicles

Source: United States Patent and Trademark Office (USPTO). Credit: China Aerospace Science and Technology Corp

The patent US12066801B2 describes a novel spoiler apparatus designed to enhance turbulence transition through autonomous disturbance. The apparatus consists of a groove, a spoiler, and an elastic member. The groove is positioned upstream of a vehicle's bottom surface, with the spoiler mounted within it. The design allows the spoiler to pivot around a swing shaft, with one end fixed in the groove and the other connected to the groove's bottom via the elastic member. This configuration ensures that the outward force exerted by the elastic member, when maximally compressed, balances with the pressure in a critical flow state. The spoiler features a flow-guiding plane structure characterized by a continuously increasing curvature, with specific geometric arrangements including dovetail grooves and protrusions to optimize aerodynamic performance.

Further claims detail the design parameters of the spoiler, including the mathematical equations used to determine the curves of its surfaces and the dimensions of the dovetail grooves. The patent specifies that the grooves should have an opening width of at least 2 mm and an opening angle between 60 to 90 degrees. Additionally, the design incorporates limiting structures to control the maximum opening angle and minimum compressed height of the spoiler. The arrangement of protrusions along the spoiler's surface is also defined, with specific dimensions and shapes to enhance airflow. Overall, the patent outlines a comprehensive approach to improving vehicle aerodynamics through innovative spoiler design, focusing on the interplay between structural elements and fluid dynamics.

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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.