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AssigneeSiemens VDO Automotive Corporation
InventorsJayashree Moorthy, Wei-Min Ren
Estimating the term…
A fuel injector for use in a fuel injection system of an internal combustion engine that includes a body, a valve seat, a closure member, an orifice plate and a metering device. The body has an inlet, an outlet and a longitudinal axis. The valve seat is proximate the outlet and has first and second surfaces and a valve seat orifice between the first and second surfaces. The closure member is movable along the longitudinal axis between a first position occluding flow and a second position permitting flow through the valve seat orifice. The closure member and the valve seat define a sealing surface, located on a virtual circle defining a sealing diameter, in the first position of the closure member. The orifice plate is proximate the outlet and includes a third surface, a fourth surface and at least one orifice, located on a virtual circle on the orifice plate defining a first radius and between the third and fourth surfaces. The metering device is between the valve seat and the orifice plate and has first and second faces contiguous to a third face. At least one of the first and third faces are spaced from one of the first and second surfaces of the valve seat to define a plurality of passages. Each passage has an inlet to and an outlet from the passage, which is located on a virtual circle defining a second diameter greater than at least one of the first and the sealing diameters.
A fuel injector for use in a fuel injection system of an internal combustion engine, the fuel injector comprising:
A flow diverter for a fuel injector, the flow diverter comprising:
A method of maintaining spray stability in fuel flow of a fuel injector, the fuel injector having a body with a first end and a second end disposed along a longitudinal axis, a valve seat disposed proximate the second end, the valve seat having a first surface and a second surface, the second surface disposed about the longitudinal axis to define a valve seat orifice, a closure member movable along the longitudinal axis between a first position blocking fuel flow through the valve seat and a second position permitting fuel flow through the valve seat, the closure member defining, in the first position, a sealing diameter on the first surface of the valve seat, an orifice plate located proximate the second end, the orifice plate having at least two orifices located on a virtual circle defining a first diameter, and a metering device having an annular portion coupled to a main portion, the main portion having a first face and a second face, the first face projecting into the valve seat orifice and being spaced from the second surface of the valve seat to define at least one passage between the main portion and the second surface of the valve seat, the method comprising:
Dependencies are inferred from the claim text.