Fuel injection device for an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsBernd Krauss, Assadollah Awarzamani, Thomas Wilfert, Joerg Heyse
Life of this patent
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Abstract
A fuel injection device provides a heating element that heats a fuel jet, the heating element being moved temporarily into the fuel jet downstream of a spray opening of the fuel injection valve and otherwise remaining outside the fuel jet. Improved fuel atomization of the fuel jet is thereby obtained or maintained. The fuel injection device can be used, for example, in mixture-compressing, applied-ignition internal combustion engines.
Claims9
A fuel injection device for an internal combustion engine having an intake duct, comprising:
- at least one fuel injection valve having a spray opening for spraying fuel into the intake duct as a fuel jet;
- and
- a fuel heating element movably disposed adjacent to the spray opening, the fuel heating element moving between a first position outside of the fuel jet and of the intake duct and a second position at least partially within the fuel jet and substantially outside of the intake duct.
A fuel injection device for an internal combustion engine having an intake duct, comprising:
- at least one fuel injection valve having a spray opening for spraying fuel into the intake duct as a fuel jet;
- and
- a fuel heating element movably disposed downstream of the spray opening, the fuel heating element moving between a first position outside of the fuel jet and of the intake duct and a second position at least partially within the fuel jet, wherein compressed air is released from the fuel heating element only in a heated condition of the fuel heating element, and the compressed air is mixed with the fuel jet.
Dependencies are inferred from the claim text.