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Actuator for aircraft turbine engine nacelle with notably one-piece annular rear part

An engine compartment and actuator technology, applied in the direction of machines/engines, engine components, aircraft power units, etc., can solve the problems of overweight parts, blocking nuts 3, huge friction, etc.

Inactive Publication Date: 2014-07-30
AIRCELLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Not to mention that such a cantilever can generate huge friction and even block the nut 3 corresponding to the screw 1, in order to provide sufficient bending stress tolerance, the dimensional requirements of the different parts (screw 1, nut 3, tube 5) are very important , because the dimensions would cause the part to be overweight

Method used

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  • Actuator for aircraft turbine engine nacelle with notably one-piece annular rear part
  • Actuator for aircraft turbine engine nacelle with notably one-piece annular rear part
  • Actuator for aircraft turbine engine nacelle with notably one-piece annular rear part

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Embodiment Construction

[0036] It is noteworthy in this patent application that the terms "upstream" and "downstream" are to be understood relative to the airflow circulation formed inside the propulsion assembly by the nacelle and the turbine engine, i.e. from Figure 4 and Figure 5 from left to right.

[0037] see Figure 4 and Figure 5 , wherein the aircraft propulsion assembly on the one hand comprises a turbine engine 15 and on the other hand a nacelle 17 encloses said turbine engine.

[0038] Figure 4 and Figure 5 A separate nacelle rear A is shown, but it should clearly be understood that the nacelle is designed to act as a fairing around the entire turbine engine 15 .

[0039] The turbine engine 15 notably comprises an upstream part 21 forming the fan casing, and a downstream part 23 forming the actual engine, making possible the propulsion of the aircraft through compression, combustion and gas injection.

[0040] The rear portion 25 of the nacelle may contain a thrust reversal fun...

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Abstract

The invention relates to an actuator (29) for an aircraft turbine engine nacelle with a notably one-piece annular rear part. The actuator comprises an engine assembly comprising a nut which is capable of rotating but not of translational movement, and means for turning the nut, and a screw assembly (37) comprising a screw (39) capable of translational movement without rotating, in mesh with the nut and a ball joint (43) at one end of the screw (39) intended to be fixed to the element.

Description

technical field [0001] The invention relates to an actuator for an aircraft turbine nacelle having, in particular, an integral annular rear portion. Background technique [0002] Such as figure 1 As shown, in certain nacelles for twin-flow turbine engines, the rear section A together with the turbine engine's fairing C (often defined as "IFS" - or Internal Fixed Structure) defines a cold flow V, the rear section A exhibits In the form of a one-piece ferrule: In this case, it is usually named "O-pipe" type nacelle. [0003] In this type of nacelle, the rear part A of the nacelle is slidably arranged on the roof beam S by means of a rail R in figure 1 Operating position shown with figure 2 Between the maintenance positions shown, where the rear of the nacelle is moved to the rear of the nacelle, thus allowing access to the turbine engine T for maintenance work. [0004] More specifically, once the rear A is oriented figure 2 Sliding in the downstream position shown, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D29/06B64D33/04
CPCB64D29/06B64D33/04F02K1/763F05D2230/80F16H2025/2075F16H2025/2037Y02T50/60B64D29/08F01D25/243
Inventor 科朗汀·休杰罗姆·科尔法
Owner AIRCELLE