FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

• Main Authors: SOMENO DADASHI, MIYAJIMA AYUMU, NAGANO MASAMI, OKAMOTO YOSHIO, KADOMUKAI YUZO
• Format: Patent
• Language: English; Korean
• Published: 24.10.2001
• Edition: 7
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PURPOSE: To reduce sticking of spray on a wall surface to be a problem when injected fuel is atomized and to improve quality and forming states of gaseous mixture within a cylinder of a port injection lean burn engine. CONSTITUTION: This device is provided with a fuel injection valve 1, an intake valve 6 for opening/closing an intake port and an intake flow control device 10 disposed on an upstream side of the intake valve 6. By making injected fuel as low penetration spray when the engine is low load/low rotation and making injected fuel as high penetration spray when the engine is high load/high rotation, sticking of spray on the wall surface is suppressed by performing injection by synchronizing with an intake stroke of the engine and carrying injected fuel by air flow flowing from the intake flow control device 10.