Low pressure fuel injector nozzle
AssigneeVisteon Global Technologies, Inc.
InventorsLakhi N. Goenka, Jeffrey Paul Mara, David Lee Porter, David Ling-Shun Hung, John Stefanski
Life of this patent
Estimating the term…
Abstract
A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.
Claims19
A nozzle for a low pressure fuel injector, the fuel injector delivering fuel to a cylinder of an engine, the nozzle comprising:
- a nozzle body defining a valve outlet and a longitudinal axis;
- a metering plate connected to the nozzle body and in fluid communication with the valve outlet;
- the metering plate having a bottom wall and a side wall, the bottom and side walls defining a nozzle cavity receiving fuel from the valve outlet;
- the metering plate defining a plurality of exit cavities receiving fuel from the nozzle cavity, each exit cavity being radially spaced from the longitudinal axis, each exit cavity meeting the nozzle cavity at an exit orifice;
- and
- the side wall sloping at an angle relative to the bottom wall, the angle between the side wall and bottom wall varying circumferentially around the nozzle cavity.
A nozzle for a low pressure fuel injector, the fuel injector delivering fuel to a cylinder of an engine, the nozzle comprising:
- an injector body defining a valve outlet and a longitudinal axis;
- a metering plate connected to the injector body and in fluid communication with the valve outlet;
- the metering plate having a bottom wall and a side wall, the bottom and side walls defining a nozzle cavity receiving fuel from the valve outlet, the angle of the side wall relative to the bottom wall varying circumferentially around the nozzle;
- the metering plate defining a plurality of exit cavities receiving fuel from the nozzle cavity, each exit cavity radially spaced from the longitudinal axis and defining an exit axis oriented relative to the longitudinal axis, each exit cavity meeting the nozzle cavity at an exit orifice;
- and
- the angle of the exit axes of adjacent exit cavities relative to the longitudinal axis being different.
A nozzle for a low pressure fuel injector, the fuel injector delivering fuel to a cylinder of an engine, the nozzle comprising:
- an injector body defining a valve outlet and a longitudinal axis;
- a metering plate connected to the injector body and in fluid communication with the valve outlet;
- the metering plate having a bottom wall and a side wall, the side wall sloping relative to the bottom wall, the bottom and side walls defining a nozzle cavity receiving fuel from the valve outlet;
- the metering plate defining a plurality of exit cavities receiving fuel from the nozzle cavity, each exit cavity radially spaced from the longitudinal axis and defining a exit axis oriented relative to the longitudinal axis;
- and
- the exit cavities being formed in the side wall, the angle between the side wall and bottom wall varying circumferentially around the nozzle cavity, the angle of the exit axes relative to the longitudinal axis varying circumferentially around the nozzle.
Dependencies are inferred from the claim text.