| 摘要 |
An injection molded fuel injection rail for an automotive engine. The fuel rail is designed to supply fuel to a plurality of electromagnetic fuel injectors oriented at acute angles relative to vertical. The socket inlet apertures through which fuel is fed from the rail interior into the respective fuel injector sockets are located in the bottom of the rail. This prevents the ingestion of vapor, which is normally present in the upper portion of the rail, into the injectors. In order to maintain both sides of these socket inlet apertures at substantially the same level the tilted injector sockets are provided with an occlusive lip along the high side of each inlet aperture. Additionally, the tilted socket axes may be offset laterally downward from the longitidinal rail axis. A plug type fitment is used to close the barrel core pin opening at one end of the rail. It is retained in the opening by a zero compressive load retainer which engages a cooperating annular shoulder structure formed on that end of the rail. To insure uniform distribution of the plastic injected into the mold and to prevent relative movement of the core pins by the force of the injected plastic during the molding process, a sprue site is located above each fuel injector socket in offset parallel alignment with the socket axis.
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