Hot air anti-icing structure of composite engine guide vane with metal leading edge

Abstract

The invention discloses a hot air anti-icing structure of a composite engine guide vane with a metal leading edge and belongs to the field of aero-engine anti-icing. The hot air anti-icing structure is suitable for designing of the anti-icing structure of an aero-engine leading edge part. The hot air anti-icing structure comprises a composite vane substrate, a metal vane leading edge, a carbon fiber flute-shaped pipe, an end socket and the like. According to the hot air anti-icing structure of the composite engine guide vane with the metal leading edge, composite materials are used for manufacturing the substrate, and metal materials are used for manufacturing the vane leading edge, so that advantages of good thermal conductivity of metal and light weight of the composite material are combined, the hot air anti-icing effect of the engine guide vane can be improved, and the air entraining content and the air entraining temperature of an engine are decreased; and meanwhile, the weight of the engine is reduced, and performance, safety and economical efficiency of the aero-engine are improved.

Description

technical field [0001] The invention relates to a hot gas anti-icing structure for guide vanes of an aero-engine, which is suitable for the design of an anti-icing structure of leading edge parts of an aero-engine, and belongs to the field of anti-icing of an aero-engine. Background technique [0002] When the aircraft is flying in clouds containing low-temperature water droplets, the icing of the guide vanes on the leading edge of the engine will narrow the area of ​​the air inlet and reduce the performance of the engine. After the ice falls off, it will be sucked into the air inlet and compressor by the engine, which may damage the engine. Cause safety accidents such as engine parking in the air. In order to ensure flight safety, the U.S. Federal Aviation Administration (FAA), China's civil aviation standards, aviation standards and military standards all stipulate that aircraft engines are anti-icing. [0003] The leading edge guide vane of an aero-engine is about an ord...

AI Technical Summary

Problems solved by technology

However, the composite materials used in advanced aero-engines have poor thermal conductivity. If the guide vane structure is completely made of composite materials, the heat transfer resistance mainly exists in the heat conduction link, and the utilization rate of anti-icing hot air is low, which affects the performance of the engine.

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