Aircraft fuel line couplings in compliance with survivable crash and lightning strike requirements

摘要

Fuel line coupling components couple together coaxially aligned fuel lines (e.g., single wall metal aircraft fuel lines) and allow for relative longitudinal movements therebetween. The fuel line coupling component may include an outer tubular housing member, an inner tubular coupling member, a tubular collar member and a coupler. The inner tubular coupling member is adapted to being attached to a terminal end of one of the fuel lines and is received within an interior space of the outer tubular housing member for slidable movements therewithin to allow the fuel line attached thereto to be telescopically extended and retracted relative to the outer tubular housing. The tubular collar member is coaxially aligned with the outer tubular member and is adapted to being attached to a terminal end of the second fuel line in coaxial opposition to the first fuel line.