# US 9,434,465 B2 · Body panel for a transport vehicle including a heat-exchange device and transport vehicle including such a body panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,465 B2 - Document ID: US9434465B2 - Status: Granted - Kind: B2 - Application number: 14/429,002 - Filed: 2013-09-19 - Published: 2015-09-03 - Granted: 2016-09-06 - Earliest claimed: 2012-09-19 - Assignees: Liebherr-Aerospace Toulouse SAS - Applicants: Liebherr-Aerospace Toulouse SAS - Inventors: Bertrand Pelissier - Web page: https://patentgrep.com/patent/US9434465B2 ## CPC - B64C 1/40: Sound or heat insulation {, e.g. using insulation blankets} - B64C 1/068: {Fuselage sections} - B64C 1/12: Construction or attachment of skin panels - B64D 13/006: {the air being used to cool structural parts of the aircraft} - Y02T 50/40: Weight reduction - Y02T 50/50: On board measures aiming to increase energy efficiency - B64C: AEROPLANES; HELICOPTERS - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A body panel (1) for a transport vehicle—in particular for an aircraft—includes a supporting plate (2) and a heat-exchange device (6), the supporting plate forming (2) on the outer face (4) thereof facing the exchanger (6) an indentation (10) extending in the body of the supporting plate (2) holding the heat-exchange device (6) such that the heat-exchange device (6) does not extend beyond the general profile of the body of the transport vehicle. ## Claims ### Claim 1 Body panel (1) for a transport vehicle comprising a heat exchange device (6), said body panel (1) having a smaller dimension, named the thickness, extending in a first direction, named the radial direction (50), and two larger dimensions extending in two directions perpendicular to one another and perpendicular to the radial direction (50), said panel (1) comprising a supporting plate (2) having a first main face, named the inner face (3), intended to be in contact with an internal space (15) of the transport vehicle and a second face, named the outer face (4), opposite said inner face (3); the heat exchange device (6) is fastened to the supporting plate (2) by a fastening device (9) and extends on said outer face (4) of the supporting plate (2) and so as to extend in contact with an external environment (5) of the transport vehicle, said heat exchange device (6) being shaped to allow a circulation of a heat transfer fluid (7) in a heat transfer fluid circuit (8) comprising the heat exchange device (6) between at least one heat transfer fluid inlet (11) of the heat exchange device (6) and at least one heat transfer fluid (7) outlet (12) of the heat exchange device (6) and to allow a dissipation of heat of the heat transfer fluid (7) to the external environment (5) of the transport vehicle; wherein the supporting plate (2) forms, on its outer face (4), an indentation (10) extending in the thickness of the supporting plate (2), said indentation (10) being adapted to receive the heat exchange device (6) and so that the heat exchange device (6) does not extend beyond the general profile of the body of the transport vehicle. ### Claim 2 (depends on 1) Panel (1) as claimed in claim 1, wherein the supporting plate (2) is formed of a composite material comprising a honeycomb core (33) extending between two rigid skins (34). ### Claim 3 (depends on 2) Panel (1) as claimed in claim 2, wherein the supporting plate (2) comprises at least one fastening member (9) for fastening the supporting plate (2) to a primary structure of the transport vehicle. ### Claim 4 (depends on 2) Panel (1) as claimed in claim 2, wherein the supporting plate (2) has at least one orifice (45) for the passage of at least one conduit of the heat transfer fluid (7) circuit (8) through the supporting plate (2), said conduit being adapted to be able to put in fluid communication the heat transfer fluid (7) inlet (11) and the heat transfer fluid (7) outlet (12) of the heat exchange device (6) with the heat transfer fluid circuit (8). ### Claim 5 (depends on 2) Panel (1) as claimed in claim 2, wherein the heat exchange device (6) comprises: at least one channel (19) in heat transfer fluid (7) communication with the heat transfer fluid circuit (8) of an aircraft (30) and extending between the fluid inlet (11) and the fluid outlet (12), each channel (19) having a polygonal shape in transverse cross-section, and; a heat-conducting plate (20) extending secured and in contact with the channels (19) on a first main face (21) and in contact with the external environment (5) of the aircraft (30) on a second main face (22) opposite said first main face (21). ### Claim 6 (depends on 1) Panel (1) as claimed in claim 1, wherein the supporting plate (2) comprises at least one fastening member (9) for fastening the supporting plate (2) to a primary structure of the transport vehicle. ### Claim 7 (depends on 6) Panel (1) as claimed in claim 6, wherein the supporting plate (2) has at least one orifice (45) for the passage of at least one conduit of the heat transfer fluid (7) circuit (8) through the supporting plate (2), said conduit being adapted to be able to put in fluid communication the heat transfer fluid (7) inlet (11) and the heat transfer fluid (7) outlet (12) of the heat exchange device (6) with the heat transfer fluid circuit (8). ### Claim 8 (depends on 6) Panel (1) as claimed in claim 6, wherein the heat exchange device (6) comprises: at least one channel (19) in heat transfer fluid (7) communication with the heat transfer fluid circuit (8) of an aircraft (30) and extending between the fluid inlet (11) and the fluid outlet (12), each channel (19) having a polygonal shape in transverse cross-section, and; a heat-conducting plate (20) extending secured and in contact with the channels (19) on a first main face (21) and in contact with the external environment (5) of the aircraft (30) on a second main face (22) opposite said first main face (21). ### Claim 9 (depends on 1) Panel (1) as claimed in claim 1, wherein the supporting plate (2) has at least one orifice (45) for the passage of at least one conduit of the heat transfer fluid (7) circuit (8) through the supporting plate (2), said conduit being adapted to be able to put in fluid communication the heat transfer fluid (7) inlet (11) and the heat transfer fluid (7) outlet (12) of the heat exchange device (6) with the heat transfer fluid circuit (8). ### Claim 10 (depends on 9) Panel (1) as claimed in claim 9, wherein the heat exchange device (6) comprises: at least one channel (19) in heat transfer fluid (7) communication with the heat transfer fluid circuit (8) of an aircraft (30) and extending between the fluid inlet (11) and the fluid outlet (12), each channel (19) having a polygonal shape in transverse cross-section, and; a heat-conducting plate (20) extending secured and in contact with the channels (19) on a first main face (21) and in contact with the external environment (5) of the aircraft (30) on a second main face (22) opposite said first main face (21). ### Claim 11 (depends on 1) Panel (1) as claimed in claim 1, wherein the heat exchange device (6) comprises: at least one channel (19) in heat transfer fluid (7) communication with the heat transfer fluid circuit (8) of an aircraft (30) and extending between the fluid inlet (11) and the fluid outlet (12), each channel (19) having a polygonal shape in transverse cross-section, and; a heat-conducting plate (20) extending secured and in contact with the channels (19) on a first main face (21) and in contact with the external environment (5) of the aircraft (30) on a second main face (22) opposite said first main face (21). ### Claim 12 (depends on 11) Panel (1) as claimed in claim 11, wherein the heat-conducting plate (20) is formed of a material chosen from the group formed of aluminium alloys. ### Claim 13 (depends on 11) Panel (1) as claimed in claim 11, wherein the heat-conducting plate (20) is secured to longitudinal walls of the channel(s) (19) by brazing. ### Claim 14 (depends on 1) Panel (1) as claimed in claim 1, wherein the heat exchange device (6) comprises: a corrugated metal plate, named the inner metal plate, adapted to be able to extend facing the outer face (4) of the supporting plate (2), and; a substantially plane outer metal plate adapted to be able to extend in contact with the external environment (5) of the aircraft (30); said inner and outer metal plates being connected to one another by brazing so as to form a plurality of channels (19) in heat transfer fluid (7) communication with the heat transfer fluid (7) circuit (8) of the aircraft (30) and extending between the heat transfer fluid (7) inlet (11) and the heat transfer fluid (7) outlet (12). ### Claim 15 (depends on 1) Panel (1) as claimed in claim 1, wherein the heat exchange device (6) comprises: a first metal plate (26) adapted to be able to extend facing the outer face (4) of the supporting plate (2); a second metal plate (27), and; extending secured between the first metal plate (26) and the second metal plate (27), an interlay part (28) adapted to be able to keep the first metal plate (26) and the second metal plate (27) spaced with respect to one another and to allow a circulation of the heat transfer fluid (7) between the heat transfer fluid (7) inlet (11) and the heat transfer fluid (7) outlet (12). ### Claim 16 (depends on 1) Panel (1) as claimed in claim 1, wherein it has a main face (29) extending in contact with the external environment (5) of the aircraft (30) of rounded convex shape and having in section in at least one radial plane —especially in each of the radial planes—comprising the radial direction (50) of the fuselage panel (1) a curvature adapted to preserve the aerodynamic behaviour of the aircraft (30). ### Claim 17 (depends on 1) Panel (1) as claimed in claim 1, wherein the fastening device (9) for fastening the heat exchange device (6) to the supporting plate (2) comprises fastening ties distributed at the surface of the heat exchange device and holding the heat exchange device rigidly with respect to the supporting plate. ### Claim 18 (depends on 17) Panel (1) as claimed in claim 17, wherein each fastening tie (9) comprises: a tangential clearance allowing relative movements of the heat exchange device (6) with respect to the supporting plate (2) in a tangential direction perpendicular to said radial direction, a radial clamping device (14) applying at least one tangential face secured to the heat exchange device (6) and at least one tangential face secured to the supporting plate (2) to bear on one another with a prestress in compression chosen so as to produce a static friction of the heat exchange device (6) on the supporting plate (2): sufficient to keep in operation the heat exchange device (6) fixed with respect to the supporting plate (2), allowing the tangential relative movements of the heat exchange device (6) with respect to the supporting plate (2) by virtue of the tangential clearance under the effect of the differential thermal expansions between the heat exchange device (6) and the supporting plate (2). ### Claim 19 (depends on 1) Transport vehicle comprising a panel (1) as claimed in claim 1.