VARIABLE COMPRESSION DEVICE AND ENGINE SYSTEM

A variable compression device of the disclosure includes a piston rod (6), a first fluid chamber (R3) which is configured to move the piston rod in a direction in which a compression ratio is increased by supplying a pressurized working fluid thereto, a regulation member (7c) which is configured to...

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Bibliographische Detailangaben
Hauptverfasser:	UMEMOTO, Yoshiyuki, MASUDA, Yutaka
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:	A variable compression device of the disclosure includes a piston rod (6), a first fluid chamber (R3) which is configured to move the piston rod in a direction in which a compression ratio is increased by supplying a pressurized working fluid thereto, a regulation member (7c) which is configured to regulate movement of the piston rod in a direction in which a compression ratio is increased, a second fluid chamber (R6) which is provided between the piston rod and the regulation member and is configured to store the working fluid, a supply flow path (R7) which is configured to guide the working fluid supplied to the second fluid chamber, a discharge flow path (R8) which is configured to guide the working fluid discharged from the second fluid chamber, and a flow rate regulation unit (15b) which is provided in the discharge flow path and is configured to regulate a flow of the working fluid when the piston rod approaches the regulation member.