公开(公告)号：EP4086474A1

公开(公告)日：2022-11-09

申请号：EP22163625.1

申请日：2022-03-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： IGUMA, Hiroki ,  TSUDA, Ryota ,  ONO, Tomohito ,  TOMODA, Keiju

IPC分类号： F16F15/18 ,  F16F15/20

摘要： A rolling vibration reduction device for an internal combustion engine (1) includes: a main inertial system configured to rotate with a crankshaft (11) of the internal combustion engine (1); a driving force transmission mechanism (3) configured to transmit a rotational driving force of the crankshaft (11), a direction of the rotational driving force being reversed by the driving force transmission mechanism (3); and a sub-inertial system configured to rotate by the rotational driving force transmitted from the driving force transmission mechanism (3) and to reduce rolling vibration of the internal combustion engine (1) associated with rotation of the crankshaft (11) by rotating in an opposite direction to the crankshaft (11). A torsional resonance frequency in the rolling vibration reduction device is set to a value higher than an explosion primary frequency at a maximum engine speed in a preset operating region of the internal combustion engine (1).