Fuel injector spray pattern
AssigneeFord Global Technologies, LLC
InventorsJianwen James Yi, Claudia Olivia Iyer, Steven Wooldridge, Gary Alan Coulson, David Bruce Reiche, Brad Alan VanDerWege
Life of this patent
Estimating the term…
Abstract
A fuel injector having an injector axis, comprising a first nozzle aiming in a first radial direction; a first nozzle pair aiming in radial directions each equally angled relative to the first direction, closest to the first radial direction, and having a longest radial offset; a nozzle second pair in radial directions each equally angled relative to the first direction; and another nozzle aiming opposite the first radial direction and having a shortest radial offset.
Claims20
A fuel injector system for an internal combustion engine comprising;
- a fuel injector having an injector axis and six injector nozzles disposed around the injector axis, each of the six injector nozzles configured to direct six respective streams of fuel such that each respective stream of fuel travels respective predetermined six radial distances from the injector axis as measured on a plane normal to the injector axis, and wherein:
- a fourth radial distance is a shortest distance relative to the other five radial distances;
- a second and a sixth radial distance are approximately equal to each other and are longer than the other four radial distances;
- a third and a fifth radial distance are approximately equal to each other and are intermediate radial distances being shorter than the second and sixth radial distance and longer than the fourth radial distance;
- and
- a first radial distance is shorter than the second and sixth radial distance and longer than the fourth radial distance.
A fuel injector for a combustion chamber comprising:
- an injector axis;
- and
- six nozzles for spraying a fuel from the injector each oriented at respective predetermined normal plane angles from a centerline located to correspond with a combustion chamber centerline with a positive direction toward one or more intake ports and as measured within a plane normal to the injector axis, the six nozzles including:
- a first nozzle oriented at a first normal plane angle of between −5 degrees and +5 degrees;
- a second nozzle oriented at a second normal plane angle of between 33.5 degrees and 53.7 degrees;
- a third nozzle oriented at a third normal plane angle of between 66.8 degrees and 76.8 degrees;
- a fourth nozzle oriented at a fourth normal plane angle of between 175 degrees and 185 degrees;
- a fifth nozzle oriented at a fifth normal plane angle of between −66.8 degrees and −76.8 degrees;
- and
- a sixth nozzle oriented at a sixth normal plane angle of between −33.5 degrees and −53.7 degrees.
A system, comprising:
- a cylinder having a cylinder wall and a cylinder axis;
- a spark plug;
- a piston positioned internally to the cylinder and having a piston bowl at a top end;
- a fuel injector having an injector axis and positioned in the cylinder wall, the fuel injector including:
- six nozzles each oriented at respective predetermined normal plane angles from the cylinder axis with a positive direction toward one or more intake ports and as measured within a plane normal to the injector axis, the six nozzles including:
- a first nozzle oriented at a first normal plane angle of between −5 degrees and +5 degrees;
- a second nozzle oriented at a second normal plane angle of between 33.5 degrees and 53.7 degrees;
- a third nozzle oriented at a third normal plane angle of between 66.8 degrees and 76.8 degrees;
- a fourth nozzle oriented at a fourth normal plane angle of between 175 degrees and 185 degrees;
- a fifth nozzle oriented at a fifth normal plane angle of between −66.8 degrees and −76.8 degrees;
- and
- a sixth nozzle oriented at a sixth normal plane angle of between −33.5 degrees and −53.7 degrees.
A fuel injector having an injector axis, comprising
- a first nozzle aiming in a first radial direction;
- a first nozzle pair aiming in radial directions each equally angled relative to the first direction, closest to the first radial direction, and having a longest radial offset;
- a nozzle second pair in radial directions each equally angled relative to the first direction;
- and
- another nozzle aiming opposite the first radial direction and having a shortest radial offset.
Dependencies are inferred from the claim text.