Aircraft having improved under-cabin space architecture

Patent metadata

Field	Value
Publication number	US-2016304185-A1
Application number	US-201615133745-A
Country	US
Kind code	A1
Filing date	Apr 20, 2016
Priority date	Apr 20, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A cabin space dedicated to passengers and, beneath said cabin space, an under-cabin space which extends along the longitudinal axis of said aircraft. The under-cabin space comprises, distributed along two lines parallel to the longitudinal axis of the aircraft, two sets of systems which are able to carry out functions necessary for the operation of the aircraft. The two lines of sets of systems are disposed respectively in two lateral zones of the under-cabin space which are spaced apart transversely from one another and enclose a free central zone which extends along the longitudinal axis of the aircraft. This arrangement thus eliminates any technical zone from the under-cabin space, thereby facilitating the internal layout and maintenance.

First claim

1 . An aircraft comprising:
a cabin space dedicated to the passengers and, underneath the cabin space, an under-cabin space which extends along the longitudinal axis of said aircraft, the under-cabin space comprises, distributed along two lines parallel to the longitudinal axis of the aircraft, two sets of systems which are able to carry out functions necessary for the operation of the aircraft, the two lines of sets of systems are disposed respectively in two lateral zones of the under-cabin space which are spaced apart transversely from one another and enclose a free central zone which extends along the longitudinal axis of the aircraft, the under-cabin space comprises cabinets disposed in the two lateral zones respectively, the systems of the sets of systems being housed in the cabinets.

2 . The aircraft according to claim 1 , wherein the under-cabin space comprises, in each lateral zone, a lateral space situated between the cabinets of the relevant lateral zone and the fuselage wall opposite, the under-cabin space comprising, in each lateral zone, a set of connections which extends longitudinally along the line of the relevant set of systems, in the lateral space of said lateral zone, each set of connections comprising tappings for connections to said systems.

3 . The aircraft according to claim 2 , wherein each cabinet has a front face situated facing the free central zone and a rear face situated facing the lateral space.

4 . The aircraft according to claim 1 , wherein the two parallel lines of sets of systems each extend from one end of the under-cabin space to the other.

5 . The aircraft according to claim 4 , wherein each of the two parallel lines is locally interrupted at the level of a part of the under-cabin space which is situated at the level of the wing structure of the aircraft.

6 . The aircraft according to claim 4 , wherein the two parallel lines of sets of systems extend continuously from one end of the under-cabin space to the other.

7 . The aircraft according to claim 1 , wherein each lateral zone comprises several cabinets which are aligned with respect to one another along the relevant line of the set of systems so as to form a line of cabinets.

8 . The aircraft according to claim 1 , wherein at least some of the cabinets are identical.

9 . The aircraft according to claim 1 , wherein each cabinet has a front face situated facing the free central zone and which, when viewed in cross section, is inclined towards the free central zone so that the upper end of the front face is closer to said free central zone than the set-back lower end of said front face.

10 . The aircraft according to claim 9 , wherein each cabinet has an upper face and a lower face both adjacent to the front face of the cabinet and configured so as to be as close as possible, respectively, to a roof of the under-cabin space and to an adjacent wall of the fuselage.

11 . The aircraft according to claim 10 , wherein each cabinet has, viewed in cross section, a trapezoidal overall shape.

12 . The aircraft according to claim 1 , wherein the free central zone is delimited laterally by the two lines of sets of systems, at its upper part by the roof of the under-cabin space and at its lower part by a floor parallel to the roof.

13 . The aircraft according to claim 9 , wherein the free central zone is delimited laterally by the two lines of sets of systems, at its upper part by the roof of the under-cabin space and at its lower part by a floor parallel to the roof.

14 . The aircraft according to claim 13 , wherein the free central zone has, viewed in cross section, a polygonal shape formed by joining together two trapeziums which are joined by their respective bases.

15 . The aircraft according to claim 13 , wherein the under-cabin space accommodates cargo containers of which the overall cross-sectional shape corresponds to the polygonal overall shape of the free central zone.

16 . The aircraft according to claim 1 , further comprising a nose, a tail and, between the two, a central part which comprises the cabin space dedicated to the passengers and, underneath, the under-cabin space, the central part having a cross section with a geometry that remains constant along its entire length.

Assignees

• Airbus Operations Sas

Inventors

• Vinches Frederic
• Guering Bernard

Classifications

• B64C1/20 Primary

  specially adapted for freight · CPC title

• B64D11/00

  Passenger or crew accommodation; Flight-deck installations not otherwise provided for · CPC title

• B64C1/10

  Bulkheads · CPC title

• B64D9/00

  Equipment for handling freight; Equipment for facilitating passenger embarkation or the like · CPC title

• Y02T50/40

  Weight reduction · CPC title