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US 12,338,779 B2Granted
Actuation mechanism
AssigneeIndustria De Turbo Propulsores, S.A.U.
InventorsAlberto Gómez García, Ibon Ortiz De Zarate Etxeandia, Mikel Diez Celaya
Life of this patent
Estimating the term…
Abstract
The present invention belongs to the technical field of gas turbine engines used as propulsion systems for supersonic aircraft. In particular, the invention relates to thrust vectoring convergent-divergent nozzles and, more in particular, to an actuation mechanism for vectoring said variable geometry nozzle.
Claims15
An actuation mechanism for a thrust vectoring variable geometry nozzle of a gas turbine engine, the actuation mechanism comprising:
- a first ring;
- a second ring;
- a third ring;
- first actuating means;
- and
- second actuating means;
- wherein according to at least one operational status of the first and second actuating means the three rings are arranged concentrically and about a longitudinal axis;
- wherein the first actuating means are configured to exert a pushing or pulling force in the direction of the longitudinal axis on at least two diametrically opposed actuation points of the second ring;
- and
- wherein the second actuating means are configured to exert a pushing or pulling force in the direction of the longitudinal axis on at least two diametrically opposed actuation points of the third ring;
- wherein in said operational status of the first and second actuating means:
- the longitudinal axis and the line connecting the actuation points of the second ring define a first plane,
- the longitudinal axis and the line connecting the actuation points of the third ring define a second plane,
- the first plane and the second plane are perpendicular;
- and wherein:
- the first ring has the smallest diameter among the three rings, and is configured to be coupled to a distal fixed portion of the nozzle by means of an axial sliding joint arranged in the direction of the longitudinal axis, such that in an operating mode of the actuation mechanism the first ring is configured to move axially with respect to said distal fixed portion of the nozzle;
- the third ring is connected to the second ring by means of at least one axial sliding joint arranged in the direction of the longitudinal axis, such that the third ring and the second ring are configured to move axially relative to each other;
- the third ring being further connected to the first ring by means of at least one cylindrical joint arranged on the second plane, wherein said cylindrical joint is configured to allow relative rotation between the third ring and the first ring around a rotation axis perpendicular to the longitudinal axis.
15 more elements
Dependencies are inferred from the claim text.