Fuel injection system and method of operating a fuel injection system
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsStephan Fitzner, Stephan Kolk
Life of this patent
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Abstract
A fuel injection system for an engine of a vehicle may include an injector nozzle mounted in an injector bore formed in a cylinder head of the engine, wherein a tip portion of the injector nozzle is protrudingly formed into a combustion chamber, and having a positioning system configured to adjust an axial position of the injector nozzle in the injector bore. The invention further provides a method of operating the fuel injection system.
Claims17
A fuel injection system for an engine of a vehicle, including:
- an injector nozzle mounted in an injector bore formed in a cylinder head of the engine, wherein a tip portion of the injector nozzle is protrudingly formed into a combustion chamber of the engine;
- and
- a positioning system configured to adjust an axial position of the injector nozzle in the injector bore,
- wherein the positioning system includes a tensioner device configured to apply a first axial force to the injector nozzle directed in a first axial direction thereof, and
- wherein the positioning system includes an adjusting device configured to apply a second axial force to the injector nozzle, the second axial force being directed in an opposite direction to the first axial force, the adjusting device is configured to vary the second axial force applied to the injector nozzle, and the axial position of the injector nozzle in the injector bore is adjustable to a predetermined position within a range of predetermined positions.
A method of operating a fuel injection system for an engine of a vehicle, the method including steps of:
- providing an injector nozzle mounted in an injector bore formed in a cylinder head of the engine, wherein a tip portion of the injector nozzle is protrudingly formed into a combustion chamber of the engine and providing a positioning system for adjusting an axial position of the injector nozzle in the injector bore;
- applying a first axial force to the injector nozzle directed in a first axial direction thereof by a tensioner device;
- and
- applying a second axial force to the injector nozzle directed in a second axial direction thereof by an adjusting device, the second axial force being directed in an opposite direction to the first axial force;
- and
- varying the second axial force applied to the injector nozzle, wherein the axial position of the injector nozzle in the injector bore is adjusted to a predetermined position within a range of predetermined positions.
Dependencies are inferred from the claim text.