DEVICE FOR SUPPRESSING KNOCKING OF FOUR CYCLE ENGINE

PROBLEM TO BE SOLVED: To operate an engine at a better thermal efficiency by ensuring that knocking is suppressed. SOLUTION: A device for suppressing the knocking of a 4-cycle engine, having a valve opening/closing timing changing means for making the timing of opening and closing of a suction valve...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO TETSUSHI, TSUJIKU HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL 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 IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To operate an engine at a better thermal efficiency by ensuring that knocking is suppressed. SOLUTION: A device for suppressing the knocking of a 4-cycle engine, having a valve opening/closing timing changing means for making the timing of opening and closing of a suction valve 8 and/or an exhaust valve 9 variable relative to the phase of a crankshaft, and provided with a knock sensor for detecting knocking, subjects the timing of opening and closing of the valve to feedback control to retard or advance it depending on whether or not knocking takes place. The device may also subject ignition timing to feedback control to retard or advance it depending on whether or not knocking takes place.