Turbomachine propeller blade setting device
AssigneeSnecma
InventorsNorman Jodet, Adrien Dubois, Rasika Fernando, Mathieu Gruber
Life of this patent
Estimating the term…
Abstract
A device for setting a turbomachine propeller blade is provided. The setting device includes a first disc and a second disc respectively provided with first and second coupling devices, the first and second discs being coaxial; and a system for tilting at least one of the first and second discs with respect to the other. During a tilting of at least one of the first and second discs with respect to the other, the coupling distance of the at least one blade on the first and second discs remains constant, bringing about the rotation of the at least one blade.
Claims15
A device for setting at least one blade of a turbomachine propeller, comprising:
- a first disc provided with first coupling means configured to cooperate with at least one first coupling point of said at least one blade for fixation on the first disc;
- a second disc provided with second coupling means configured to cooperate with at least one second coupling point of said at least one blade for fixation on the second disc, the first and second discs being coaxial;
- and
- means of tilting at least one of the first and second discs with respect to the other,
- the device being configured so that, during a tilting of at least one of the first and second discs with respect to the other, a coupling distance of said at least one blade on the first and second discs, which corresponds to a distance between said at least one first and one second coupling points cooperating respectively with the first and second coupling means, remains constant, bringing about rotation of said at least one blade,
- the first coupling means and the second coupling means being respectively configured to cooperate with said at least one first and one second coupling points by forming a slide type mechanical link,
- the means of tilting comprising actuators able to modify an orientation of at least one of the first and second discs with respect to the other and a distance separating the first and second discs, by a translation movement, and
- the means of tilting comprising a stop for the actuators so as to establish sliding between at least one of the first and second discs and the actuators.
A method of setting at least one blade of a turbomachine propeller, comprising:
- fixing said at least one blade on a first disc provided with first coupling means and on a second disc provided with second coupling means, the first and second coupling means cooperating respectively with at least one first coupling point and at least one second coupling point of said at least one blade for fixation on the first and second discs, the first and second discs being coaxial, the first coupling means and the second coupling means being respectively configured to cooperate with said at least one first and one second coupling points forming a slide type mechanical link;
- tilting at least one of the first and second discs with respect to the other using means of tilting while maintaining constant a coupling distance of said at least one blade on the first and second discs, which corresponds to a distance between said at least one first and one second coupling points cooperating respectively with the first and second coupling means, thereby bringing about rotation of said at least one blade, the means of tilting comprising actuators able to modify the orientation of at least one of the first and second discs with respect to the other and the distance separating the first and second discs, by a translation movement, and a stop for the actuators so as to establish sliding between at least one of the first and second discs and the actuators.
Dependencies are inferred from the claim text.