公开(公告)号：US11215138B1

公开(公告)日：2022-01-04

申请号：US17121951

申请日：2020-12-15

Applicant: Harbin Engineering University

Inventor： Jie Guo ,  Xinyu Zhang ,  Wenping Zhang ,  Ye Wang

IPC: F16C9/02 ,  F16C27/02 ,  F02F7/00 ,  F16C27/06 ,  F16C17/02

Abstract: A low-noise main bearing cap for an internal combustion engine is designed that includes a main bearing cap body, wherein the main bearing cap body is connected to an engine body main bearing seat. The main bearing cap body is provided with a vibration isolator A vibration isolation structure is provided between the main bearing cap body and the vibration isolator The main bearing cap body is connected with the vibration isolator through a connector The vibration isolation structure comprises an S-shaped structure and an oil film gap, and the vibration isolator is provided with an oil inlet passage which is communicated with the oil film gap. The present design solves the control problem of the main bearing vibration source caused by the main bearing load.