Fuel rail and fuel injection apparatus using the same

A fuel injection apparatus, comprising:

• a tubular rail body including an inlet through which a fuel is introduced therein from supply source;
• a plurality of tubular protrusion portions projecting from the rail body in a vertical direction relative to an axial direction of the rail body, the protrusion portions being arranged at a predetermined interval in the axial direction of the rail body;
• a tubular extension portion extending from each of the protrusion portions in a vertical direction relative to both an axial direction of the protrusion portions and the axial direction of the rail body, the tubular extension portion being inserted into a bore which extends from an exterior of an internal combustion engine to an combustion chamber;
• a fuel injector, which is inserted in the bore and is connected with the connecting portion, including a housing having an injection port, a valve member reciprocating in the housing to open or close the injection port, an electromagnetic drive portion driving the valve member, and an electronic connector connected with the electromagnetic drive portion;
• a connecting portion formed on an end portion of the extension portion opposite to the protrusion portion, the connecting portion being fluidly connected with each of the fuel injectors inserted in the bore;
• and
• a wire harness including a first connector connected with an end portion of a power harness which is connected with an electronic power source, a second connector connected with the electronic connector of the fuel injector, and a lead wire connecting the first connector and the second connector.