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A fuel rail assembly for an internal combustion engine including an elongated rail having a longitudinal inlet passage and a longitudinal outlet passage. The upstream end of the inlet passage is connected to a fuel supply line while the downstream end of the inlet passage is connected through a pres

A fuel rail assembly for an internal combustion engine including an elongated rail having a longitudinal inlet passage and a longitudinal outlet passage. The upstream end of the inlet passage is connected to a fuel supply line while the downstream end of the inlet passage is connected through a pressure regulator to the upstream end of the outlet passage. A return fuel line is connected to the downstream end of the outlet passage. A plurality of injector bores communicate with the inlet passage and extend to the exterior of the rail and each injector bore receives one end of a fuel injector, while the opposite end of each injector is sealed within a bore in a runner of an intake manifold. The injectors are mounted in a manner to provide limited tilt to facilitate assembly with the bores in the fuel rail and the manifold reservoir.

대표청구항 ▼

A fuel rail assembly for an internal combustion marine engine, comprising an elongated rail having a first end and a second end, said rail having an inlet passage extending between said ends, said inlet passage having an upstream end located at the first end of the rail and connected to a fuel suppl

A fuel rail assembly for an internal combustion marine engine, comprising an elongated rail having a first end and a second end, said rail having an inlet passage extending between said ends, said inlet passage having an upstream end located at the first end of the rail and connected to a fuel supply line, said rail also having a return passage disposed parallel to said inlet passage, said return passage having an upstream end located at the second end of the rail and having a downstream end located at the first end of the rail and connected to a fuel return line, the lower extremity of said inlet passage being at a vertical level above the upper extremity of said return passage, said rail having a row of first injector bores connected to the inlet passage and extending to the exterior of the rail, said rail also having a row of second injector bores connected to the inlet passage and extending to the exterior of the rail, the axes of the first injector bores being disposed at an angle to the axes of the second injector bores, said row of first injector bores located on one side of said return passage and the row of second injector bores located on the opposite of said return passage, and a fuel injector mounted in each injector bore and disposed to inject fuel into a manifold.