Abstract: A fuel rail for a fuel-injected internal combustion engine includes an elongated tube having a longitudinal axis, an overall length and a cross-sectional shape along a substantial portion of the length of the tube. The cross-sectional shape is a closed curve, wherein all portions of the cross-sectional shape curve outwardly from the longitudinal axis, and the shape has a non-constant radius. The fuel rail also includes at least one fuel outlet for communicating with a fuel injector.

Abstract: A fuel rail assembly configured for coupling to an engine, the fuel rail including a body having therein a fuel passageway, and a fuel injector coupled to the body and in fluid communication with the fuel passageway. A portion of the body is configured to interconnect with the engine assembly to secure the fuel rail assembly to the engine without using conventional threaded fasteners.

Abstract: A fuel rail assembly configured for coupling to an engine, the fuel rail including a body having therein a fuel passageway, and a fuel injector coupled to the body and in fluid communication with the fuel passageway. A portion of the body is configured to interconnect with the engine assembly to secure the fuel rail assembly to the engine without using conventional threaded fasteners.

Abstract: A fuel manifold having a rigid base portion with a fuel injector pocket defined therein, a top wall portion, a first substantially flat thin-walled portion extending between the rigid base portion and the top wall portion and a second substantially flat thin-walled portion extending between the rigid base portion and the top wall portion. The base portion, the top wall portion and the first and second thin-walled portions are defined by a one-piece aluminum extrusion and together define a fuel cavity that extends into the base portion and communicates with the fuel injector pocket.