Turbine engine

Details Turbine engine Turbine engine

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 3/16 (2006.01) F02C 3/09 (2006.01) F04D 29/44 (2006.01)

Patent

CA 2435116

Engine (30) has a compression fan (36) coaxially mounted with reaction member (38). Casing (32) extends around reaction member (38) to form volute (52) and extends to turbine wheel (54) which is connected to compression fan (36) via axle (40). Reaction member (38) comprises vanes (60), flame grid (62) and supporting members in the form of side casings (64). A mixture of fuel and air enters engine (30) via inlets (34). The mixture is drawn into compression fan (36) which causes an increase in the pressure of the mixture. From the compression fan (36) the mixture is directed towards the reaction member (38). Because the compression fan (36) is rotating in a first sense and the reaction member (38) is rotating in a second sense, the velocity of the fuel and air mixture entering the reaction member (38), relative to the reaction member (38), is approximately the sum of the external rim velocity of the compression fan (36) and the internal rim velocity of the reaction member (36). The mixture is burnt within the reaction member (38) and the vectored gases cause the rotation of the reaction member (38) in the second sense.

L'invention concerne un moteur (30) comprenant un compresseur (36) monté coaxial avec un élément de réaction (38). Un carter (32) entoure ledit élément de réaction (38) de façon à former une volute (52), et se prolonge jusqu'à la roue de la turbine (54) reliée au compresseur (36) via un arbre (40). L'élément de réaction (38) comprend des aubes (60), une grille pare-feu (62) et des éléments de support sous forme de carters latéraux (64). Un mélange de carburant/air entre dans le moteur (30) via des admissions (34). Ce mélange est aspiré dans le compresseur (36), ce qui entraîne une augmentation de la pression dudit mélange. Le mélange est dirigé, depuis le compresseur (36), vers l'élément de réaction (38). Du fait que le compresseur (36) tourne dans un premier sens et que l'élément de réaction (38) tourne dans un second sens, la vitesse du mélange carburant/air admis dans ledit élément de réaction (38) par rapport à cet élément de réaction (38) représente approximativement la somme de la vitesse à la jante extérieure dudit compresseur (36) et de la vitesse à la jante intérieure dudit élément de réaction (36). Le mélange est brûlé dans l'élément de réaction (38) et les gaz déplacés entraînent la rotation de l'élément de réaction (38) dans ledit second sens.

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