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Cascade-type thrust reverser with mobile vanes for an aircraft propulsion assembly, and associated assembly and dismantling methods

A technology of thrust reverser and propulsion unit, which is applied in the directions of power plant, aircraft power plant components, jet propulsion device, etc. on aircraft, and can solve problems such as damage

Active Publication Date: 2020-06-26
SAFRAN NASEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cascade rails are arranged radially between the inner and outer walls of the movable cowl of the thrust reverser, this removal allows the cascade rails to collide with the movable cowl, which can damage these various elements

Method used

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  • Cascade-type thrust reverser with mobile vanes for an aircraft propulsion assembly, and associated assembly and dismantling methods
  • Cascade-type thrust reverser with mobile vanes for an aircraft propulsion assembly, and associated assembly and dismantling methods
  • Cascade-type thrust reverser with mobile vanes for an aircraft propulsion assembly, and associated assembly and dismantling methods

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Embodiment Construction

[0062] The invention relates to the field of aircraft propulsion units.

[0063] figure 1 The aircraft propulsion unit is shown in . The propulsion unit comprises a nacelle 1 , an engine pylon 2 and an engine (not shown) of the turbojet type housed in the nacelle 1 . Partially shown engine pylons 2 are intended for fastening to a wing (not shown) of an aircraft.

[0064] The nacelle 1 comprises an air intake 11 adapted to allow optimal capture towards the turbojet of the air necessary to supply the fan 3 of the turbojet and the internal compressor (not shown).

[0065] In the following, the engine may be a turbojet of such a propulsion unit.

[0066] The nacelle 1 extends in a direction D1 through the engine axis.

[0067] refer to Figure 1 to Figure 7 , nacelle 1 includes a thrust reverser comprising:

[0068] -Removable hood consisting of two half hoods: Figure 1 to Figure 4 A single half-shaped hood 41 is shown in ;

[0069] - two beams: Figure 5 to Figure 7 A s...

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Abstract

The invention relates to an aircraft propulsion assembly with an engine provided with a cascade-type thrust reverser with cascades of mobile deflection vanes (43). The cascades of deflection vanes (43) are connected to cascade rails (45) with a slideway connection that allows the cascades of vanes (43) a translational movement between a cruising-flight position and a reverse-thrust position. The thrust reverser is designed to allow the cascade rails (45) to be positioned in a forward position, in which the engine, the cascade rails (45) and the deflection vanes (43) can be removed from the propulsion assembly without the cascade rails (45) colliding with the mobile cowl (41) of the reverser. The invention also relates to dismantling and assembly or reassembly methods that allow maintenanceoperations to be carried out on the engine thus dismantled.

Description

technical field [0001] The invention relates to the field of aircraft propulsion units, in particular aircraft propulsion units comprising a nacelle and an engine of the twin-flow turbojet type. More specifically, the invention relates to a thrust reverser with movable cascades for such a propulsion unit and a method of disassembly and installation or reinstallation to allow maintenance operations to be performed on the removed engine. Background technique [0002] Thrust reversers with cascades allow the propulsion unit to change from a cruise configuration known as "direct injection" to a thrust reverser configuration known as "reverse injection". In the reverse jet configuration, a portion of the air flow is redirected upstream of the propulsion unit by cascades, also referred to in this document as "cascade vanes". [0003] In a thrust reverser with movable cascades, the transition from the direct-injection configuration to the reverse-injection configuration is accompl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K1/72F02K1/76
CPCF02K1/72F02K1/766F05D2230/72B64D29/06F02K1/70F02K1/763
Inventor 皮埃尔·卡吕埃勒文森特·佩隆
Owner SAFRAN NASEL
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