DEVICE FOR CONTROLLING A MULTI-CYLINDER ENGINE

Disclosed is a control device for a multi-cylinder engine having a combustion chamber 19 to which an intake port 16 and an exhaust port 17 are connected. The control device comprises: an intake-side variable valve operating mechanism 71 for controlling a lift timing of two intake valves 21a, 21b of...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIGUCHI, Tadasu, TAKAHASHI, Toshiaki, KUMAKURA, Kazufumi, INOUE, Atsushi, TAKAGI, Akitomo, SUEOKA, Masanari, NISHIDA, Masami, EZUMI, Keitaro, HASEGAWA, Tomohiro, KUSUNOKI, Tomokuni, HIDAKA, Masatoshi, TAKEMOTO, Kazuhiro, MATSUMOTO, Kota
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed is a control device for a multi-cylinder engine having a combustion chamber 19 to which an intake port 16 and an exhaust port 17 are connected. The control device comprises: an intake-side variable valve operating mechanism 71 for controlling a lift timing of two intake valves 21a, 21b of the intake port 16; an exhaust-side variable valve operating mechanism 72 for controlling a lift timing of an exhaust valve 22a; and an exhaust-side valve operating mechanism 73 for driving an exhaust valve 22b at a fixed timing. The control device is operable, when executing cylinder deactivation in a low engine load and low engine speed operating range, to cause the exhaust-side variable valve operating mechanism 72 to open the exhaust valve 22a during downward movement of a piston 14 in a cylinder 18 being subjected to the cylinder deactivation.