THERMIONIC EMISSION METHOD FOR THERMAL PROTECTION OF AIRCRAFTS DURING THEIR AERODYNAMIC HEATING Russian patent published in 2010 - IPC B64C1/38 B64G1/50 

FIELD: transport.

SUBSTANCE: invention relates to aircraft and rocket-and-space engineering, specifically to thermal protection of fore edges and fore body of aircrafts (AC) in supersonic and hypersonic flights. The method consists in the following: inner surface of AC heated part is covered with material having high electron thermal emission. Element made of current conducting material is fitted with the gap of 0.1…1 mm from this coating. Temperature of this element is kept on lower level than temperature of AC heated part and its thermal emission coating. Emitted electrons are deposited on this element and transferred to heated up part of AC through on-board self-contained electric power consumer.

EFFECT: lowering and stabilising AC parts temperature during aerodynamic heating as well as possibility to obtain electric power from returned part of fuel energy spent to overcome drag component and dissipated into heat.

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