VALVE DRIVING MECHANISM FOR INTERNAL-COMBUSTION ENGINE

PURPOSE:To reduce a noise at the time of switchover, by suspending a valve through positioning of a hydraulic tappet mechanism at a descending point, in a valve driving device provided with a valve suspension function. CONSTITUTION:A cam follower 9 which makes opening and closing driving of a switch...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HONDA SHIYOUICHI, ABU NOBUO
Format:	Patent
Sprache:	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:	PURPOSE:To reduce a noise at the time of switchover, by suspending a valve through positioning of a hydraulic tappet mechanism at a descending point, in a valve driving device provided with a valve suspension function. CONSTITUTION:A cam follower 9 which makes opening and closing driving of a switching valve 4 intermittently in connection with a cam 8 which is turned along with a rotation of a crank shaft is hinged through a hydraulic tappet mechanism. Valve suspension is carried out so as to enable positioning of a hydraulic tappet mechanism optionally to either ascending or descending positions in its central axis direction. With this, a noise at the time of switchover is reduced as an impact is alleviated through impact buffering effect due to a hydraulic oil inside a hydraulic pressure chamber at the time of switchover from the suspension to the actuation of the valve.