HCCI fuel injectors for robust auto-ignition and flame propagation

摘要

A direct injection engine includes a fuel injector receiving a flow of pressurized fuel. The fuel injector provides fuel injections directly into a combustion chamber of the engine. The fuel injector includes a first fuel injector nozzle opening directing with a first narrow injection angle a first portion of a fuel injection mass at a spark gap of a spark plug. The fuel injector further includes a second fuel injector nozzle opening dispersing with a second wider injection angle a second portion of the fuel injection mass within the combustion chamber.

主权项

1. A fuel injector receiving a flow of pressurized fuel and providing fuel injections directly into a combustion chamber of an internal combustion engine, the fuel injector comprising:
a first fuel injection nozzle opening of the fuel injector directing with a first narrow injection angle a first portion of a fuel injection mass at a spark gap of a spark plug; and a second fuel injection nozzle opening of the fuel injector dispersing with a second wider injection angle a second portion of the fuel injection mass within the combustion chamber in an evenly distributed conical spray plume throughout the combustion chamber, such that the fuel injector may simultaneously direct the first portion of the fuel injection mass and the second portion of the fuel injection mass at differing injection angles.