Compressed self-ignition type internal combustion engine
AssigneeToyota Jddosha Kabushiki Kaisha
InventorTakeshi Hashizume
Life of this patent
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Abstract
An internal combustion engine includes a fuel injection nozzle in which a nozzle hole that injects fuel is provided to be exposed to a combustion chamber from a cylinder head of the internal combustion engine, and a hollow duct in which an inlet and an outlet are exposed to the combustion chamber. The duct is provided to penetrate through an inside of the cylinder head so that fuel spray injected from the nozzle hole of the fuel injection nozzle passes from the inlet to the outlet. The duct is preferably configured so that a direction from the inlet to the outlet corresponds to a direction of the fuel spray injected from the nozzle hole.
Claims8
An internal combustion engine of a compressed self-ignition type that performs combustion by injecting fuel into a compressed combustion chamber, comprising:
- a fuel injection nozzle having a nozzle hole that injects fuel, the nozzle hole being directly exposed within the combustion chamber from a cylinder head of the internal combustion engine;
- and
- a hollow duct in which an inlet and an outlet are exposed within the combustion chamber,
- wherein the cylinder head includes an integrated member integrated with a top surface, and the duct is configured to penetrate through the integrated member so that fuel spray injected from the nozzle hole of the fuel injection nozzle passes from the inlet to the outlet,
- wherein the integrated member is configured so that a surface area of a surface contacting the cylinder head is larger than a surface area of a surface exposed to the combustion chamber, and
- wherein in the integrated member, a periphery of the nozzle hole is formed into a shape that is protruded annularly.
Dependencies are inferred from the claim text.