VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINE

A variable compression ratio internal combustion engine comprises a crankshaft and a connecting rod. The connecting rod comprises a connecting rod body, a first hydraulic cylinder, a first hydraulic piston, a second hydraulic cylinder, a second hydraulic piston, a linking member, a hydraulic oil pat...

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Bibliographische Detailangaben
1. Verfasser: KAMO Yoshiro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A variable compression ratio internal combustion engine comprises a crankshaft and a connecting rod. The connecting rod comprises a connecting rod body, a first hydraulic cylinder, a first hydraulic piston, a second hydraulic cylinder, a second hydraulic piston, a linking member, a hydraulic oil path, and a spool between a first operating position permitting supply of hydraulic oil from the second hydraulic cylinder to the first hydraulic cylinder, and a second operating position permitting supply of hydraulic oil from the first hydraulic cylinder to the second hydraulic. The variable compression ratio internal combustion engine further comprises a biasing member arranged inside the crank pin and biasing the spool so as to selectively switch a position of the spool between the first operating position and the second operating position.