摘要
可变气门升程技术能够有效提升汽油发动机的燃油经济性和动力性,是汽油发动机的重要技术.首先从全球专利申请趋势、申请地域分布、主要国家申请趋势、主要申请方排名4个方面分析了可变气门升程技术的专利状况;其次分析了能够可靠、高效地实现气门升程调节的4种典型技术;最后对整体内容进行总结,提出了相关的建议和思考.旨在为相关企业在可变气门升程技术方面的研发和专利布局提供参考.
Abstract
Variable valve lift technology can effectively improve the fuel economy and power performance of gasoline engines,and it is an impor-tant technology in gasoline engines.Firstly,this article analyzes the patent status of this technology from four aspects:global application trends,regional distribution of applications,application trends in major countries,and ranking of major applicants.Subsequently,four typical patent technologies that can reliably and efficiently achieve valve lift adjustment were analyzed.Finally,a summary of the previous aspects was made,and relevant suggestions and thoughts were proposed to provide reference for the research and patent layout of variable valve lift technology for relevant enterprises and units.
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