| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fitting that forms a fluid seal with metal-to-metal contact and allows for a certain limited amount of axial misalignment between first and second fuel conduits coupled by the fitting. <P>SOLUTION: A first conduit has a generally spherical-shaped exterior surface, and a second conduit has a generally conical-shaped interior surface for receiving the generally spherical-shaped exterior surface of the first conduit. A nut is engaged with a threaded exterior surface of the second conduit, and tightening of the nut on the threaded exterior surface urges the first and second conduits axially to each other to apply increasing pressure. A ring can be arranged between the nut and the first conduit, and the ring can lower the net coefficient of friction during tightening of the nut compared to direct contact between the nut and first conduit. The ring can be radially spaced from a radially facing interior surface of the nut. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
