Internal-combustion engine

Japanese Patent JP6020330

B2

PROBLEM TO BE SOLVED: To provide an internal combustion engine including a variable compression ratio mechanism, capable of suppressing damage of a clutch.SOLUTION: An internal combustion engine includes a variable compression ratio mechanism for changing a relative position of a cylinder block to a crankcase. The variable compression ratio mechanism includes: a shaft interposed between the crankcase and the cylinder block; a shaft drive; a lift spring urging the cylinder block; and a rotation stopper stopping the rotation of the shaft at a preset position. The drive includes a clutch for shutting off transmission of a torque to an input shaft when the torque in a rotational direction corresponding to a direction in which the cylinder block separates is applied to an output shaft. At a time of stopping the internal combustion engine, a mechanical compression ratio is reduced so that the rotation stopper can stop the rotation of the shaft and the internal combustion engine is stopped in a state of canceling the shutoff of the transmission of the clutch torque.

WO/2012/095999	INTERNAL COMBUSTION ENGINE
JPS5934434	INTERNAL-COMBUSTION ENGINE
JP4490429	Engine with multiple modes of operation, including operation with compressed air

Makoto Okawa
Kazuto Sakai

JP2013087471A

November 02, 2016

April 18, 2013

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TOYOTA JIDOSHA KABUSHIKI KAISHA

F02D15/04; F02B75/04; F16H35/00

JP2010255453A
JP2007056836A
JP2005214088A

WO2011148514A1

Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Tatsuki Sone
Yuichi Morimoto

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