Rotary wing aircraft with a firewall arrangement

US11912402B2 · kind B2 · utility

Assignee

• AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

• Aurelien Vayssiere · Niederschönenfeld, DE
• Hubert Neukirch · Dillingen/Saar, DE
• Markus Kammerer · Langenpreising, DE
• Bernhard Rein · Rain, DE

Key dates

• Filing date: Feb 7, 2022
• Grant date: Feb 27, 2024
• Expiry date: Feb 7, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64D2045/009
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A rotary wing aircraft with a fuselage that forms an aircraft interior region, the fuselage comprising an upper primary skin that separates the aircraft interior region from an aircraft upper deck arranged above the fuselage, wherein the aircraft upper deck comprises an engine accommodating region with a firewall arrangement, the engine accommodating region accommodating at least one aircraft engine within the firewall arrangement, wherein the firewall arrangement comprises at least one gasket for tightening pass-through of a torque tube that connects the at least one aircraft engine to a main gear box of the rotary wing aircraft, and wherein the at least one gasket comprises at least two fire proof shells and a ring-shaped flexible fire proof bellows.