PROBLEM TO BE SOLVED: To resolve some problems that since an air-inlet port of a jet-liner is wide open, some foreign materials such as birds, pebbles, ice blocks or the like are sometimes sucked into the port during its ground sliding or flight in the air to damage a fan or an engine and if the damage is enormous, serious accidents such as accidental landing or crash occur and this is true fact to cause a certain fear to occur every time the inventor gets on an air-plane.SOLUTION: A protection net is closely contacted with a fan front surface to resolve the aforesaid anxiety. With this arrangement as above, the protection net is closely contacted with the fan to cause a double effect to occur and further the irregularity at the knots of the protection net rotated at a high speed together with the fan may act as a saw to break the sucked foreign materials instantly to disperse them in a radial direction to remove them away through the fan exhaust holes, so that the engine is not damaged and its strike pressure is also dispersed and the fan is not damaged. Accordingly, if this invention is actually installed at a jet-liner, even if the jet-liner sucks some foreign materials during ground sliding or during flight in the air, the jet-liner can fly safe.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】 ジエット機の空気取入口は大きく開口しているため、地上滑走時や飛行中に鳥、小石、氷片等の異物をしばしば吸い込み、フアンやエエンジンを損傷させ、損傷が激しい時は、不時着や墜落等の重大事故が発生する。 これが実状であるだけに、航空機を利用する度に恐怖を感じる。【解決手段】 フアン前面に防護ネットを密着させて、上記不安を解決した。 これにより、防護ネットがフアンに密着する相乗効果で、両者の強度は増し、しかも、フアンと共に高速で回転する防護ネットの編目の凸凹が鋸作用をし、吸い込んだ異物を瞬時に破砕して半径方向に飛散し、フアン排気孔より抜けさせるので、エンジンは損傷しないと共に衝突圧は分散されるのでフアンも損傷しない。 したがって、本発明をジエット機に装着すれば、地上滑走時や飛行中に異物を吸い込んでも安全に飛行することができる。【選択図】図1
