| 摘要 |
A fuel injector that provides fuel targeting and fuel spray distribution with non-angled metering orifices at higher than normal fuel flow rates is described. In a preferred embodiment, the fuel injector includes a housing, an inlet, an outlet, a seat, a metering disc, and a closure member. The seat is disposed proximate to the outlet and includes a sealing surface and a seat orifice extending through the seat from the sealing surface along the longitudinal axis to a tapered surface that extends obliquely from the seat orifice about the longitudinal axis to define a first volume. The metering disc includes a first surface disposed about the longitudinal axis and having a portion contiguous to a plane and a second surface that extends from the first surface away from the inlet and bounds a portion of the plane to define a second volume. The plurality of metering orifices is located outside a projection of the seat orifice that defines a first virtual circle on the second surface. A method of flowing fuel through the fuel injector is also described.
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