F02K1/11

Nacelle for an aircraft engine with variable section nozzle
10619598 · 2020-04-14 · ·

The present disclosure concerns a nacelle for an aircraft engine, which includes a thrust reverser cowling that is slidably mounted between a direct jet position, and a reversed jet position in which the cowling opens a passage in the nacelle and uncovers a deflection device, and at least one actuator for moving the cowling. The nozzle section of the cowling delimits at least one opening that is combined with a leakage door, the leakage door being movably mounted on the cowling between a closed position in which the door engages with the associated opening to counteract the flow of air through said opening, and an open escape position in which the door is retracted to allow a portion of the air flow to flow through said opening.

THRUST REVERSER ACTUATION ARRANGEMENT AND DEPLOYABLE FAIRING SYSTEMS AND METHODS
20200080515 · 2020-03-12 · ·

A thrust reverser may include a frame, a track disposed on the frame, a carrier operatively coupled to the track, a first reverser door operatively coupled to the carrier, the first reverser door is movable relative to the frame, wherein the first reverser door is configured to move to a first position in response to the carrier moving with respect to the track in a first direction, and move to a second position in response to the carrier moving with respect to the track in a second direction, and a deployable fairing pivotally coupled to the frame, the deployable fairing operatively coupled to the carrier, wherein the deployable fairing is configured to move away from a central axis of the thrust reverser to provide clearance for the reverser door to rotate into a deployed position.

SYSTEM FOR ACTUATING A PANEL OF A TURBOJET ENGINE NACELLE

A pod for a turbojet engine includes an outer cowl having a structure with at least one opening and a panel pivotably mounted about an axis between a closed position and an open position, and a system for actuating the panel designed to lock the panel in closed position and to move same between the closed position and the open position thereof. The actuation system includes a lateral connecting rod connected to the panel and to the structure, pivoting relative to the structure about a first pivoting axis and about a second pivoting axis, and a linear actuator attached to the lateral connecting rod. The actuator system is designed to move the lateral connecting rod during the extension of the actuator, and the lateral connecting rod exerts a force on the panel during the movement thereof, pivoting the panel about the axis thereof.

Variable area nozzle for aircraft propulsion system
12031445 · 2024-07-09 · ·

An apparatus is provided for an aircraft propulsion system. This apparatus includes a variable area nozzle apparatus. The variable area nozzle apparatus includes a plurality of panels, a plurality of inter-panel members and an actuation system. The panels are arranged circumferentially about an axial centerline. The panels include a first panel and a second panel. The inter-panel members are arranged circumferentially about the axial centerline. The inter-panel members include a first inter-panel member between and connected to the first panel and the second panel. The first inter-panel member is configured from or otherwise includes an elastomeric material. The actuation system is configured to move the panels and the inter-panel members between a restricted flow arrangement and an unrestricted flow arrangement. The actuation system includes a first linkage and a second linkage. The first linkage is coupled to the first panel. The second linkage is coupled to the second panel.

Method for controlling a thrust unit for a propulsion device
20240262520 · 2024-08-08 · ·

The invention relates to a method for correcting the thrust vector created by a thrust unit associated with electrical correction means of the thrust vector. Such a thrust unit comprises a mechanical rotor moved in rotation by a rotary shaft of an internal combustion engine in response to a power command. Such a method comprises a step of generating this latter in order to reduce the error value between a rotation speed setpoint and a measured rotation speed of the shaft of the internal combustion engine and thus to correct the speed of the shaft of said internal combustion engine. The method also comprises a step of generating an actuation command of thrust vector electrical correction means generated based on the error value independently of the speed correction of the shaft of the internal combustion engine.

Thrust reverse variable area fan nozzle
10001080 · 2018-06-19 · ·

A thrust reverse variable area nozzle system for a nacelle of an aircraft engine system may include a reverse thrust opening disposed in the nacelle, and a thrust reverser door pivotally movable relative to the nacelle for selectively covering the reverse thrust opening, wherein the thrust reverser door is pivotally movable between a first position for completely covering the reverse thrust opening, a second position for partially uncovering a forward portion of the reverse thrust opening and discharging a bypass airflow through the forward portion of the reverse thrust opening in a forward direction, and a third position for partially uncovering an aft portion of the reverse thrust opening and discharging the bypass airflow through the aft portion of the reverse thrust opening in an aft direction.

Thrust reverse variable area fan nozzle
10001080 · 2018-06-19 · ·

A thrust reverse variable area nozzle system for a nacelle of an aircraft engine system may include a reverse thrust opening disposed in the nacelle, and a thrust reverser door pivotally movable relative to the nacelle for selectively covering the reverse thrust opening, wherein the thrust reverser door is pivotally movable between a first position for completely covering the reverse thrust opening, a second position for partially uncovering a forward portion of the reverse thrust opening and discharging a bypass airflow through the forward portion of the reverse thrust opening in a forward direction, and a third position for partially uncovering an aft portion of the reverse thrust opening and discharging the bypass airflow through the aft portion of the reverse thrust opening in an aft direction.

JET NOZZLE EFFECTIVE AREA CONTROL SYSTEM FOR GAS TURBINE ENGINE
20260055732 · 2026-02-26 ·

An aircraft gas turbine engine includes a fan that in operation moves air through both a core airflow path and a bypass airflow path of the gas turbine engine. The core airflow path and the bypass airflow path converge at a jet nozzle of the gas turbine engine. A method of controlling the gas turbine engine includes detecting, at a controller of the gas turbine engine, a cruise operating condition of the gas turbine engine, and in response to detecting the cruise operating condition, repositioning a plurality of overlap jointed split duct panels such that an effective area of the jet nozzle is reduced.

JET NOZZLE EFFECTIVE AREA CONTROL SYSTEM FOR GAS TURBINE ENGINE
20260055743 · 2026-02-26 ·

A gas turbine engine for an aircraft includes a jet nozzle. The jet nozzle includes an upper split duct panel and a lower split duct panel coupled with the upper split duct panel via a first overlap joint and a second overlap joint. The jet nozzle also includes at least one actuator configured to receive a command signal from a controller, and based on the command signal, reposition the upper split duct panel and lower split duct panel such that an effective area of the jet nozzle is adjusted.

Gas turbine engine nozzle with variable area

An aircraft gas turbine engine includes an exhaust nozzle having a nozzle flowpath, and a nacelle of the gas turbine engine at least partially defining an exhaust nozzle flow area of the exhaust nozzle. The nacelle extends axially along an engine central longitudinal axis of the gas turbine engine and circumferentially around the engine central longitudinal axis. A shutter vector apparatus is attached to the nacelle and is operable between a stowed position and a deployed position. The shutter vector apparatus is configured to modulate the exhaust nozzle flow area when the shutter vector apparatus is moved between the stowed position and the deployed position. The shutter vector apparatus includes a plurality of shutter elements, each shutter element having at least one aerodynamic surface extending into the nozzle flowpath of the exhaust nozzle when the shutter vector apparatus is in the deployed position.