Pitot-static tube

Details Pitot-static tube Pitot-static tube

G - Physics

01

P

G01P 13/02 (2006.01) B64D 43/02 (2006.01) G01P 5/165 (2006.01)

Patent

CA 2325023

The invention relates to a Pitot-Static tube including three groups of ori- fices for determining the total pressure, static pressure and angle of at- tack, an axially symmetric body and a strut for fastening to pneumatic paths arranged between them and to electric heating elements. In order to reduce the aerodynamic drag of the Pitot-Static tube and the power re- quired for heating the anti-icing system, the orifices for measuring the static pressure are arranged on a plate upstream of the strut. Said ar- rangement will additionally simplify the design and lower the design weight.

La présente invention concerne une prise statique de tube de Pitot qui comprend trois groupes d'orifices (2,5,6,10) permettant de déterminer la pression totale, la pression statique et l'angle d'attaque; ainsi qu'un corps axialement symétrique (1) et un mât (4) destiné à les fixer à des conduits pneumatiques disposés entre eux et à des éléments de chauffage électrique. De manière à réduire la traînée aérodynamique de la prise statique du tube de Pitot, ainsi que la puissance requise nécessaire au chauffage du dispositif antigivrant, les orifices (10) de mesure de la pression statique sont disposés sur une plaque (8) en amont du mât (4). Ladite disposition permet en plus de simplifier la conception et de diminuer le poids.

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