초록 ▼

A fuel shroud system has a chamber for draining leaked fuel. The chamber is partly defined by a drain can and a sealing ferrule having a spherical sealing ferrule/drain can interface. The spherical interface allows rotation of the drain can relative to the sealing ferrule about an axis perpendicular

A fuel shroud system has a chamber for draining leaked fuel. The chamber is partly defined by a drain can and a sealing ferrule having a spherical sealing ferrule/drain can interface. The spherical interface allows rotation of the drain can relative to the sealing ferrule about an axis perpendicular to the longitudinal axis of the ferrule, thereby facilitating installation of the drain can. The sealing ferrule also includes an anti-torquing nut to enable the sealing ferrule to be held rigid while the swivel nut is being torqued, thereby preventing torsional static preloads from being applied to the piping system during installation.

대표청구항 ▼

In a fuel shroud system for coupling a fuel pipe to a fuel-actuated component, comprising: sealing ferrule means comprising a first channel for fuel having a longitudinal axis, means for coupling to said fuel pipe, first sealing means and a bushing having an outer circumferential surface; interface

In a fuel shroud system for coupling a fuel pipe to a fuel-actuated component, comprising: sealing ferrule means comprising a first channel for fuel having a longitudinal axis, means for coupling to said fuel pipe, first sealing means and a bushing having an outer circumferential surface; interface means connected to said fuel-actuated component and comprising a second channel for fuel and a second sealing means; swivel nut means for coupling said sealing ferrule means to said interface means such that said first and second fuel channels are in fluid communication and said first and second sealing means form a contact seal to block fuel leakage therebetween; and drain can means comprising second means for coupling to said interface means and wall means having an inner circumferential surface which interfaces with said outer circumferential surface of said bushing, said bushing of said sealing ferrule means and said wall means of said drain can means partly defining a chamber for receiving fuel leaked through said contact seal; third sealing means arranged to block fuel leakage between said drain can means and said bushing; and fourth sealing means arranged to block fuel leakage between said drain can means and said interface means, the improvement wherein said inner circumferential surface of said wall means of said drain can means interfaces with said outer circumferential surface of said bushing in a manner that allows rotation of said drain can means relative to said sealing ferrule means about an axis substantially perpendicular to said longitudinal axis while maintaining direct contact between at least a portion of said inner circumferential surface of said wall means and at least a portion of said outer circumferential surface of said bushing.