Fuel injection device for internal combustion engine
AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsMasami Nagano, Tadashi Someno, Masahiro Toyohara
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Abstract
The present invention provides a fuel injection device comprising an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side and a fuel injection port disposed in the intake pipe between the surfaces for providing fuel into the intake pipe and an air guide member disposed in the intake pipe in a plane substantially parallel to the surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein the air guided towards the air flow layer passage has a speed at least greater than the air guided towards the main air passage.
Claims12
A fuel injection device comprising:
- an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side;
- a fuel injection port disposed in said intake pipe between said surfaces for providing fuel into said intake pipe;
- and
- an air guide member disposed in said intake pipe in a plane substantially parallel to said surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein said air guided towards said air flow layer passage has a speed at least greater than said air guided towards said main air passage,
- wherein said fuel injection port is provided in said main air passage.
An engine system comprising:
- an engine control unit;
- a fuel injection device electrically coupled to said engine control unit for regulating fuel injection, said device comprising:
- an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side;
- a fuel injection port disposed in said intake pipe between said surfaces for providing fuel into said intake pipe;
- and
- an air guide member disposed in said intake pipe in a plane substantially parallel to said surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein said air guided towards said air flow layer passage has a speed at least greater than said air guided towards said main air passage,
- wherein said fuel injection port is provided in said main air passage.
Dependencies are inferred from the claim text.