Aircraft fuel pipe coupling

US8172272B2 · kind B2 · utility

Assignee

• AIRBUS OPERATIONS LIMITED · DE

Inventors

• David Petit · Bristol, GB
• Anthony Bryant · Smoketree Road, GB

Key dates

• Filing date: Oct 6, 2006
• Grant date: May 8, 2012
• Expiry date: Oct 3, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L2201/30
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A coupling for fuel pipe includes a pipe end fitting, which includes a male outer surface including a groove and a female inner surface including a groove. The coupling includes a double-walled socket including a female outer socket and a male inner shaft. The pipe end fitting is accommodated in the region between the female outer socket and the male inner shaft. A first seal ring seals between the female inner surface and the male inner shaft. A second seal ring, which may be substantially coplanar with the first, seals between the male outer surface and the female outer socket of the double-walled socket. The coupling may be so arranged that the pipe end fitting and the double-walled socket are able to pivot relative to each other by up to at least ±2 degrees and are able to slide both towards and apart from each other.