Engine hydraulic three-stage variable valve control mechanism, engine and method

The invention discloses an engine hydraulic three-stage variable valve control mechanism, an engine and a method. A first oil drainage ring groove and a second oil drainage ring groove are formed in a shell of a hydraulic full-variable valve mechanism; a tappet hole is formed in the tappet; the cont...

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Bibliographische Detailangaben
Hauptverfasser:	LI XIAOXIA, LI GUANGMING, ZI YINTING, ZHANG BO, ZHENG JIANSONG, TANG ZHUYOU, CHENG YONG, YU LINSHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses an engine hydraulic three-stage variable valve control mechanism, an engine and a method. A first oil drainage ring groove and a second oil drainage ring groove are formed in a shell of a hydraulic full-variable valve mechanism; a tappet hole is formed in the tappet; the control mechanism comprises a first electromagnetic valve, a second electromagnetic valve and a sliding valve, the sliding valve is installed on the shell, the first electromagnetic valve and the second electromagnetic valve are normally closed valves, when the first electromagnetic valve and the second electromagnetic valve are not powered on or both powered on, the first oil drainage ring groove and the second oil drainage ring groove are not communicated with the low-pressure oil way, and when the first electromagnetic valve is powered on, the first oil drainage ring groove and the second oil drainage ring groove are not communicated with the low-pressure oil way. The first oil drainage ring groove communicates with