초록 ▼

A fluid conduit system especially for high pressure fuel connections in engines comprises an elongate tube having a fitting asssembly mounted at each end thereof. Each fitting assembly is identical to the other and includes a stepped outer diameter sleeve member having a larger diameter distal porti

A fluid conduit system especially for high pressure fuel connections in engines comprises an elongate tube having a fitting asssembly mounted at each end thereof. Each fitting assembly is identical to the other and includes a stepped outer diameter sleeve member having a larger diameter distal portion and a narrower proximal portion. A nut is slidably received about the tube and has a threaded bore therein which is of a diameter greater than the diameter of the larger diameter portion of the sleeve member and a proximal flange surrounding a reduced diameter bore having a diameter substantially greater than the diameter of the narrower portion of the sleeve member but less than the diameter of the larger diameter portion of the sleeve member. The nut further includes an area of undercut along an inner surface thereof adjacent the proximal flange disposed to receive therein the edge of the larger diameter portion of the sleeve member when the nut is radially offset from a centered position about the tube up to a position where the narrower portion of the sleeve member abuts against the flange of the nut.

대표청구항 ▼

A fluid conduit system comprising: an elongate tube having a fluid passage and a fitting assembly mounted at each end thereof, each fitting assembly being identical to the other and including: a sleeve member attached to said tube and having an inner bore receiving said tube end in close fitting rel

A fluid conduit system comprising: an elongate tube having a fluid passage and a fitting assembly mounted at each end thereof, each fitting assembly being identical to the other and including: a sleeve member attached to said tube and having an inner bore receiving said tube end in close fitting relation and a stepped outer diameter including a larger diameter distal portion and a smaller diameter proximal portion, said larger diameter portion including a distal end face disposed in a radial plane and having an aperture therein communicating with said fluid passage of said tube; and, a nut slidably receiving said tube through a threaded bore therein which is of a diameter greater than the diameter of the larger diameter portion of said sleeve member, said nut including a proximal flange surrounding a reduced diameter throughbore having a diameter substantially larger than the diameter of said narrower portion of said sleeve member but less than the diameter of said larger diameter portion of said sleeve member, said nut further including an area of undercut along an inner surface thereof adjacent to said proximal flange, said undercut being disposed to receive therein a radially outwardly circumferential portion of said larger diameter portion of said sleeve member upon said tube being radially offset from a centered position within tube, said flange being engagable against a proximal face of said larger diameter portion of said sleeve member to force said distal end face of said larger diameter portion of said sleeve member against a sealing face of a connector to which said fitting is to be engaged.