マルチリンク式ピストン・クランク機構用軸受の課題と設計

抄録

The multi-link piston-crank mechanism which implements variable compression ratio consists of multiple links and bearings which connecting links. Therefore, it was very important how to design the journal bearings and bushes which is added as important elements to constitute the multi-link mechanism. In this paper, it is explained that how to design the journal bearings and bushes for multi-link piston-crank mechanism based on each peculiar load characteristic and sliding characteristic. At that time,each dynamic characteristic and cooling effect by the engine oil by the added oil feeding path was considered.