Ford Motor Company Limited

Marvin D Wells

William F Horn

Robert C Gardner

Steve J Yockey

Mark K Rhoades

Joseph M Giachino

Lawrence W Evers

Debojit Barua

William P Richardson

A method for improving the atomization quality from a fluid injector includes the steps of inducing a first vortex turbulence in the fluid flowing past a first protrusion in a supply orifice having a flow axis therein, guiding the fluid through a turbulence cavity and then out through a first metering orifice having another protrusion positioned downstream from the first protrusion by a distance y measured generally parallel to the flow axis and by a distance x measured generally perpendicular to the flow axis. The droplet size of the fluid exiting from the metering orifice is reduced by sizing the x and y dimensions to position the first vortex turbulence within the turbulence cavity operatively adjacent to and upstream from the first metering orifice. In a preferred embodiment, the ratio of x/y is greater than 0.5 and less than 5. A fuel injector nozzle practicing this process is also provided.

Method and structure for optimizing atomization quality of a low

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.

Fuel injector with silicon nozzle

A silicon compound nozzle has two generally planar parallel plates with offset openings coupled by a shear gap. Fluid flow in the shear gap is generally parallel to the plates and increases fluid dispersion.

Silicon micromachined compound nozzle

Growing community of inventors

Redford, MI, United States of America

Marvin D Wells