| 摘要 |
PROBLEM TO BE SOLVED: To improve energy saving and low pollution related to an internal combustion engine through lean and fine formation of injection fuel, an air mixing condition and a combustion chamber structure.SOLUTION: This invention constitutes a lean fuel injection nozzle in which a valve opening lift is made a little by making a large diameter and short length pin part of a pin-type injection nozzle for use in injecting fuel into a cylinder. A combustion method of an internal combustion engine in which lean injection flow of fuel is injected and struck against the large diameter and short length nozzle pin side surface part to make separation and fine formation as well as cylindrical expansion and development of a group of lean fuel due to its striking and reaction, air sucking flow is changed into a directive swirl flow form under a cooperative relation of combination of an intake valve and a valve seat and a valve opening lift, a nozzle in the cylinder and an ignition part are cooled, a complete combustion of various kinds of fuel is executed by an EFI system or a direct injection method through improvement of a fuel mixing and combustion condition and a high compression ratio is solved under three technical conditions on a thin and fine nozzle formation, a combustion chamber and a reinforcement of air mixing so as to perform a complete combustion. |
