Patent ID: 8752527

Claim:
A fuel line assembly for supplying fuel to an internal combustion engine, comprising: a double-walled fuel line including a high pressure fuel line, a jacket surrounding the high pressure fuel line, and a low pressure passage between the high pressure fuel line and the jacket; a fuel line nut including a main body that houses a portion of the high pressure fuel line, said fuel line nut including a first end portion supporting an enlarged end portion of the high pressure fuel line protruding from the first end portion and a second end portion sealingly connected to the jacket to extend the low pressure passage into an area between the main body and the housed high pressure fuel line; a fuel line connector mechanically and sealingly engaged with the fuel line nut to house the supported enlarged end portion of the high pressure fuel line; a single-walled high pressure connector tube including a central axis, a first end portion fluidly connected with the enlarged end portion of high pressure fuel line, a second end portion for sealingly engaging a fuel injector inlet port, and a pivoting element positioned between the first and second end portions and extending outwardly from the central axis; and a clamp nut including a portion for securing the single-walled high pressure connector tube within a bore in a cylinder head of an internal combustion engine via an end portion applying force to the pivoting element and urging the second end portion of the single-walled high pressure connector tube into the sealing engagement with a fuel injector inlet port of the injector; wherein the fuel line connector mechanically fastens to the first end portion of the single-walled high pressure connector tube, but not to the clamp nut, to allow pivoting the single-walled high pressure connector at the interface with the pivoting element.