航空发动机声衬结构专利技术分析

为研究航空发动机声衬技术的发展脉络及趋势,以航空发动机声衬的专利技术为载体,从专利申请趋势、申请人所在国、主要申请人、技术热点四个角度全面分析了全球航空发动机声衬的专利技术信息,为航空发动机声衬结构的技术发展与创新提供技术参考。结果表明,20世纪90年代开始,航空发动机声衬专利申请量快速增长。美国、法国、英国是主要技术申请国,空中客车、波音、埃塞公司、赫氏公司是主要申请人,中国与之有一定差距。对于声衬结构改进、声衬拼接研究是该领域研究热点。

In order to study the development context and trend of acoustic liner in aero engine technology,based on the patented technology of aero engine acoustic liner,the application trend,nationality distribution,major applicants,the technical means of acoustic liner in aero engine were comprehensive investigated from the perspective of patents,providing technical reference for the technical development and innovation of acoustic liner in aero engine.The result shows that patent applications increased rapidly since 1990s.The United States,France,and the United Kingdom are the main technology applicant countries,Airbus,Boeing,Ethiopia,and Hershey are the major applicants,the gap between Chinese applicants and these applicants is huge.The research on acoustic liner structure improvement and acoustic liner joining are research hotspots.