VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINE

There is provided a link mechanism (22) which connects a variable compression ratio mechanism (10) arranged to vary an engine compression ratio in accordance with a rotation position of a first control shaft (13), and an actuator (20), which includes a lever (25) connecting a first control shaft (13...

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Bibliographische Detailangaben
Hauptverfasser:	HIYOSHI, Ryosuke, NAKAMURA, Katsutoshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	There is provided a link mechanism (22) which connects a variable compression ratio mechanism (10) arranged to vary an engine compression ratio in accordance with a rotation position of a first control shaft (13), and an actuator (20), which includes a lever (25) connecting a first control shaft (13) and a second control shaft (24), a combustion load acted to the first control shaft (13) being transmitted through the lever (25) to the second control shaft (24). There are provided: a first link pin (28) connecting a tip end of the first arm portion (27) extending from the first control shaft (13) in a radially outward direction, and one end of the lever (25) so that the first arm portion and the lever are rotated relative to each other; and a second link pin (30) connecting a tip end of the second arm portion (29) extending from the second control shaft (24) in a radially outward direction, and the other end of the lever (25) so that the second control shaft and the lever are rotated relative to each other. A diameter (D1) of the first link pin (28) is set to be greater than a diameter (D2) of the second link pin (30).