Aircraft comprising at least one engine assembly linked to the fuselage of the aircraft by two connecting rods positioned at least partially in an air inlet of the engine assembly

Patent metadata

Field	Value
Publication number	US-11084596-B2
Application number	US-201816173190-A
Country	US
Kind code	B2
Filing date	Oct 29, 2018
Priority date	Oct 30, 2017
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

An aircraft which comprises a fuselage and at least one propulsion assembly linked to the fuselage by at least two connecting rods positioned at least partially in an inner zone of the air inlet of the nacelle of the propulsion assembly. Thus, the connecting rods do not interfere with the secondary flow flowing inside the nacelle and do not affect the aerodynamic performance levels of the propulsion assembly.

First claim

The invention claimed is:

1. An aircraft comprising a fuselage and at least one propulsion assembly which comprises:
an engine comprising a rotation axis, a core and a fan casing which has an approximately cylindrical form and has a front edge and a rear edge,
a nacelle comprising, at the front, an air inlet which has a lip, a front inner duct configured to channel a flow of air towards the fan casing and an outer wall delimiting, with the lip and the front inner duct, an inner zone of the air inlet,
a link linking the engine and the fuselage and comprising at least two connecting rods,
wherein each connecting rod comprises a first anchoring point linking the connecting rod to the fan casing and a second anchoring point linking the connecting rod to the fuselage and offset forwards relative to the first anchoring point so that each connecting rod is positioned at least partially in the inner zone of the air inlet.

2. The aircraft according to claim 1 , wherein the engine comprises straighteners linking the fan casing and the core of the engine and wherein, for each connecting rod, the first anchoring point is positioned in line with the straighteners.

3. The aircraft according to claim 2 , wherein the link linking the engine and the fuselage comprises a front engine attachment comprising a strap which bands the fan casing, which is linked to the fuselage and which is positioned in line with the straighteners.

4. The aircraft according to claim 1 , wherein, for each connecting rod, the first and second anchoring points are arranged so that the connecting rod and the rotation axis of the engine form an angle less than 25°.

5. The aircraft according to claim 1 , wherein, for each connecting rod, the first anchoring point is positioned in a vertical plane containing the rotation axis of the engine.

6. The aircraft according to claim 1 , wherein the second anchoring point and the front edge of the fan casing are separated by a distance substantially equal to a distance separating the first anchoring point and the front edge of the fan casing.

7. The aircraft according to claim 1 , wherein the second anchoring points are disposed in one and the same vertical plane.

8. The aircraft according to claim 1 , wherein the connecting rods are substantially symmetrical relative to a horizontal median plane of the engine.

9. The aircraft according to claim 1 , wherein the link linking the engine and the fuselage comprises a rear engine attachment comprising a crossmember which extends in a horizontal and transverse direction, which is linked to the fuselage and which has a first end linked to the core of the engine.

10. The aircraft according to claim 9 , wherein the crossmember has a first end, linked to the core of the engine of a first propulsion assembly, and a second end linked to the core of the engine of a second propulsion assembly, a median part of the crossmember being linked to the fuselage.

11. The aircraft according to claim 1 , wherein the link linking the engine and the fuselage comprises a front engine attachment comprising a strap which bands the fan casing and which is linked to the fuselage.

Assignees

• Airbus Operations Sas

Inventors

• Bouchet Eric
• Colmagro Jérôme
• Garcia Michel

Classifications

• B64D27/402

  comprising box like supporting frames, e.g. pylons or arrangements for embracing the power plant · CPC title

• B64C7/02 Primary

  Nacelles · CPC title

• B64D27/20

  within, or attached to, fuselages · CPC title

• Y02T50/40

  Weight reduction · CPC title

• B64D27/14

  within, or attached to, fuselages · CPC title