Rotary wing aircraft with a firewall arrangement

US11820485B2 · kind B2 · utility

Assignee

• AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

• Axel FINK · Donauwörth, DE
• Manuel KEMPF · Donauwörth, DE

Key dates

• Filing date: Mar 3, 2021
• Grant date: Nov 21, 2023
• Expiry date: Nov 7, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A rotary wing aircraft with a fuselage that comprises an upper primary skin and an aircraft upper deck arranged above the fuselage, wherein the aircraft upper deck comprises a firewall arrangement that defines a fire proof separation at least between at least one aircraft engine and an aircraft interior region, wherein the firewall arrangement comprises at least one funnel-shaped lower firewall that is arranged between the at least one aircraft engine and the upper primary skin of the fuselage, wherein the at least one funnel-shaped lower firewall converges from an outer perimeter to at least one inner collecting point, and wherein the outer perimeter is spaced apart from the upper primary skin of the fuselage.