Qian Yuping.
On November 22, 2023, the SAE Edge Report "Key Technology Challenges of Electric Ducted Fan Propulsion Systems for EVTOL", written by the Special Power Team of Tsinghua University (Flying Car Propulsion Research Center) (hereinafter referred to as the "Team"), was officially released on the official website of SAE International. Based on the team's research results in the field of electric ducted fan propulsion technology, this report systematically analyzes the technical difficulties and challenges of electric ducted fans in flying cars (EVTOLs) from four aspects: performance optimization, stability, power density and noise. In view of the key bottleneck of further improving the power density of electric ducted fans, the report focuses on the new scheme of air-cooled hot pipe guide vane motor proposed by the team based on the integrated design of motor and ducted fan, and the test results show that the power density of air-cooled heat pipe guide vane motor reaches 48kw/kg。
In 2021, the team wrote and published the first SAE Edge Report study on the overall key technology analysis of flying cars, "Unsettled topics concerning flying cars for urban air mobility". This report is an in-depth analysis of the individual technology of electric ducted fan propulsion for flying cars, including the innovative research results of the team of Jin Yuzhi, Zhang Lei, Li Ye, Dong Chaofan, Hu Xuanyang, Luo Yiwei, Jin Kaiwen, He Yuhang and other graduate students.
Note: The positioning of the SAE Edge Report is to analyze the key technologies and industry status of the most important issues currently faced by the transportation industry.
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