In this paper , experimental study is carried out on a liquid flameless combustor ,which is designed based on the idea of mak-ing use of both trapped-vortex technology and flameless combustion technology .During the experiment , emphasis is placed on the influ-ence of inlet air temperature , air flow rate, equivalence radio of reentrant and main equivalence , aiming to study the condition under which flameless combustion will take place and the combustion characteristic of the combustor .The conclusion may be useful for desig-ning a flameless combustor .%本文通过将凹腔驻涡技术和无焰燃烧技术相结合，设计了一种基于凹腔驻涡的燃油无焰燃烧室，并对其进行了实验研究。重点关注了空气温度、空气流量、凹腔当量比和主当量比对无焰燃烧的形成和燃烧室污染物排放特性的影响。在实验基础上总结了航空发动机凹腔驻涡燃烧室形成无焰燃烧的条件，为该种燃烧室的设计提供依据。
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