STATOR BLADE STRUCTURE AND TURBOFAN JET ENGINE USING SUCH BLADE Russian patent published in 2017 - IPC F04D29/54 F01D9/02 F01D5/14 B64D45/02 

FIELD: engine devices and pumps.

SUBSTANCE: turbofan jet engine comprises a fan casing, an engine body section, a stator blade, a metal skin, a pair of connecting bearing bodies and a conductor. The stator blade connects the fan casing and the engine body section and is made of composite material obtained from thermosetting resin or thermoplastic resin and reinforcing fibres. The metal skin covers at least a section of the leading edge of the stator blade and prevents wear of the stator blade caused by collision with particles. A pair of connecting bearing bodies which connect a first end of the stator blade and the fan casing, and a second end of the stator blade and the section of the engine body are made of metal. The conductor passes through the space between the leading edge section of the stator blade and the metal skin and electrically connects the connecting bearing bodies at the first end and the second end of the stator blade. In this case, the lightning current received by the fan casing passes to the side of the engine body section through the conductor. The lightning current caused by lightning strikes can be reflected, and simultaneously the controlling function of the stator blade air flow made of composite material is provided, at that the test can be carried out easily.

EFFECT: increased efficiency and reliability of the engine.

2 cl, 5 dwg