INTAKE AIR CONTROL DEVICE FOR FOUR-CYCLE INTERNAL COMBUSTION ENGINE

PURPOSE:To provide an intake air control device for a four-cycle internal combustion engine to improve the intake air filling efficiency of each cylinder as the increase of the number of installed drive mechanisms is suppressed. CONSTITUTION:Intake air control valves 161-164 and actuators 171-174 ar...

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Bibliographische Detailangaben
1. Verfasser:	OHASHI MICHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide an intake air control device for a four-cycle internal combustion engine to improve the intake air filling efficiency of each cylinder as the increase of the number of installed drive mechanisms is suppressed. CONSTITUTION:Intake air control valves 161-164 and actuators 171-174 are installed to intake air branch pipes 151-154 connected to four cylinders 11-14 of an internal combustion engine 10. Two cylinders 11, 14 and 12, 13, making a set, between which phase differences of a cycle are different from each other in a 360 deg. arc in the rotation angle of the internal combustion engine, and drive circuits 18a and 18b are installed to respective cylinder sets and controlled by a control part 19. Thus, an intake air control valve is opened during the early stage of an exhaust stroke and by closing an intake valve during opening of an intake air valve, intake air filling efficiency is improved, incurring of the pumping loss of a suction stroke is reduced, and spitting right before closing of the intake air valve is prevented from occurring.