The invention relates to an emergency wind turbine system (20) for an aircraft comprising an outer structure (201) in which an opening is made, said emergency wind turbine system (20) comprising an emergency wind turbine (22) comprising: a mast (23) extending along a longitudinal axis (24); a turbine (25) comprising a body (30) which is mounted on the mast (23) such that it rotates about an axis of rotation (26), and a single blade or two blades (32) extending radially from the body (30) between a blade root received in the body (30) and a blade head, the at least one blade root extending along the same blade root axis (35); a locking device (29) designed to lock the rotation of the body (30) of the turbine (25) about the axis of rotation (26), when the emergency wind turbine (22) moves between a so-called retracted position and a so-called deployed position, in a position such that the blade root axis (35) forms an acute and non-null locking angle (a) with an orthogonal projection (24') of the longitudinal axis (24) of the mast (23) over a plane (P) substantially perpendicular to the axis of rotation (26) of the turbine (25) and in which the blade root axis (35) extends, so as to reduce the volume swept by the emergency wind turbine (22) when it moves between the retracted position and the deployed position.

    The invention relates to an emergency wind turbine system (20) for an aircraft comprising an outer structure (201) in which an opening is made, said emergency wind turbine system (20) comprising an emergency wind turbine (22) comprising: a mast (23) extending along a longitudinal axis (24); a turbine (25) comprising a body (30) which is mounted on the mast (23) such that it rotates about an axis of rotation (26), and a single blade or two blades (32) extending radially from the body (30) between a blade root received in the body (30) and a blade head, the at least one blade root extending along the same blade root axis (35); a locking device (29) designed to lock the rotation of the body (30) of the turbine (25) about the axis of rotation (26), when the emergency wind turbine (22) moves between a so-called retracted position and a so-called deployed position, in a position such that the blade root axis (35) forms an acute and non-null locking angle (.alpha.) with an orthogonal projection (24') of the longitudinal axis (24) of the mast (23) over a plane (P) substantially perpendicular to the axis of rotation (26) of the turbine (25) and in which the blade root axis (35) extends, so as to reduce the volume swept by the emergency wind turbine (22) when it moves between the retracted position and the deployed position. La présente invention concerne un système d'éolienne de secours (20) pour un aéronef comprenant une structure extérieure (201) dans laquelle une ouverture est ménagée, ledit système d'éolienne de secours (20) comprenant une éolienne de secours (22) comportant: -un mât (23) s'étendant selon un axe longitudinal (24), -une turbine (25) comprenant un corps (30) monté en rotation sur le mât (23) autour d'un axe de rotation (26), et une pâle unique ou deux pâles (32) s'étendant radialement depuis le corps (30) entre un pied de pâle logé dans le corps (30) et une tête de pâle, le ou les pieds de pâle s'étendant le long d'un même axe de pied de pâle(35), -un dispositif de blocage (29)configuré pour bloquer la rotation du corps (30) de la turbine (25)autour de l'axe de rotation (26), lorsque l'éolienne de secours (22) se déplace entre une position dite rétractée et une position dite déployée, dans une position telle que l'axe de pied de pâle (35)forme un angle de blocage(a), aigu et non nul,avec une projection orthogonale(24')de l'axe longitudinal (24)du mât (23)sur un plan (P) sensiblement perpendiculaire à l'axe de rotation (26)de la turbine (25)et dans lequel s'étend l'axe de pied de pâle (35), de manière à réduire le volume balayé par l'éolienne de secours (22) lorsqu'elle se déplace entre la position rétractée et la position déployée.


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    Title :

    SYSTEME D'EOLIENNE DE SECOURS COMPRENANT UN DISPOSITIF DE BLOCAGE EN ROTATION DE LA TURBINE


    Additional title:

    EMERGENCY WIND TURBINE SYSTEM COMPRISING A DEVICE FOR ROTATABLY LOCKING THE TURBINE


    Contributors:

    Publication date :

    2017-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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