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US 4,907,748 AGranted
Fuel injector with silicon nozzle
AssigneeFord Motor Company
InventorsRobert C. Gardner, Joseph M. Giachino, William F. Horn, Mark K. Rhoades, Marvin D. Wells, Steve J. Yockey
Life of this patent
Estimating the term…
Abstract
A fuel injector has a silicon micromachined nozzle plate which coacts with a fuel flow valve to control fuel flow out of the fuel injector.
Claims5
A fuel injector with a silicon micromachined nozzle includes:
- an injector body for supporting components of the fuel injector:
- a fuel connection coupled so as to pass fuel from a fuel source to said silicon micromachined nozzle;
- a fuel valve means in the fuel flow path of said silicon nozzle for regulating the flow of fuel;
- said silicon nozzle being coupled to said injector body and having an opening for passing fuel downstream of said fuel valve means;
- said silicon nozzle being a relatively flat silicon plate having a plurality of openings therethrough for passing fuel wherein each of said openings has sides slated from the perpendicular to the major plane of said silicon nozzle plate;
- and
- said silicon nozzle plate including a top silicon plate coupled to a bottom silicon plate, said top plate having a first top opening offset along the major plane of said silicon nozzle plate from a first bottom opening in said bottom plate thereby forming a compound silicon nozzle.
4 more elements
A fuel injector with a silicon micromachined nozzle includes:
- an injector body for supporting components of the fuel injector;
- a fuel connection coupled so as to pass fuel from a fuel source to said silicon micromachined nozzle;
- a fuel valve means in the fuel flow path upstream of said silicon nozzle for regulating the flow of fuel;
- said silicon nozzle being coupled to said injector body and having an opening for passing fuel downstream of said fuel valve means;
- and
- said silicon nozzle including a compound silicon nozzle having a first nozzle plate, with first plate openings therethrough, coupled along a planar surface to a second nozzle plate having a second plate opening therethrough, the first plate openings being laterally spaced from said second plate opening so that said first and second plate openings are not axially aligned and the interface between said first and second nozzle plates has a gap permitting flow from said first plate openings to said second plate opening.
3 more elements
A fuel injector with a silicon micromachined nozzle includes:
- an injector body for supporting components of the fuel injector;
- a fuel connection coupled so as to pass fuel from a fuel source to said silicon micromachined nozzle;
- a fuel valve means in the fuel flow path upstream of said silicon nozzle for regulating the flow of fuel;
- said silicon nozzle being coupled to said injector body and having an opening for passing fuel downstream of said fuel valve means;
- and
- said valve means including a needle and seat valve in the flow path to said silicon nozzle.
3 more elements
Dependencies are inferred from the claim text.