DRAINED BLADE OF AERODYNAMIC MODEL OF PROPELLER AND METHOD OF ITS MANUFACTURING Russian patent published in 2024 - IPC G01M9/08 B64C11/26 

Abstract RU 2824089 C1

FIELD: test equipment.

SUBSTANCE: group of inventions relates to design and method of making blades of aerodynamic models of propellers used for testing in wind tunnels. Blade of aerodynamic model of propeller is formed of two parts, upper and lower, made separately in preliminarily prepared matrixes. Contains an external bypass-forming skin and an internal power skin, a nose pad, which forms an aerodynamic profile of the blade in its nose part, under which there is an anti-icing pad, a spar, a tail section filler, an anti-flutter weight. Tubes of air pneumatic lines have tightly closed and open ends. Air pressure switch is located in the central part of the blade in the provided compartment and is made with possibility of connection with experimental equipment for taking readings of air pressure and with open ends of tubes of air pneumatic lines by means of adapter tubes. Middle layer fills the space between the outer and inner skins. On the outer bypass-forming skin there are intake holes connected by means of tubes of air pneumatic lines to the air pressure switch. Tubes are located in channels inside middle filling layer adjoining external bypass-forming skin. Thickness of the middle filling layer is equal to the outer diameter of the tubes of the air pneumatic lines.

EFFECT: enabling determination of static pressure on different sections of the blade and conducting research on anti-icing of the blades.

9 cl, 11 dwg

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RU 2 824 089 C1

Authors

Agureev Pavel Andreevich

Bondarev Aleksandr Olegovich

Bulatov Albert Igorevich

Burdov Aleksei Andreevich

Evdokimov Iurii Iurevich

Kozlov Vladimir Alekseevich

Kozyrev Sergei Iurevich

Nazarov Aleksandr Aleksandrovich

Revazov Maksim Valikovich

Trifonov Ivan Vladimirovich

Usov Aleksandr Viktorovich

Khodunov Sergei Vladimirovich

Dates

2024-08-01Published

2023-10-30Filed