公开(公告)号：US20160230807A1

公开(公告)日：2016-08-11

申请号：US15018018

申请日：2016-02-08

Applicant: Daido Metal Company Ltd.

Inventor： KENTA KATO ,  YUKI KAWASHIMA

IPC: F16C9/02 ,  F16C33/04 ,  F16C17/02

CPC classification number: F16C9/02 ,  F16C17/02 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/107 ,  F16C33/1075 ,  F16C2360/22

Abstract: A main bearing includes first and second half bearings, each having a main cylinder portion and crush relief portions in both circumferential end portions. An oil groove circumferentially extends on an inner circumferential surface only of the first half bearing, one circumferential end portion of the oil groove opens on a circumferential end surface on a front side in a rotation direction, and the other circumferential end portion of the oil groove is positioned in the main cylinder portion. The first half bearing includes a transition region at least between the crush relief portion on the rear side in the rotation direction and the main cylinder portion, and the second half bearing includes a transition region at least between the crush relief portion on the front side in the rotation direction and the main cylinder portion.

Abstract translation: 主轴承包括第一和第二半轴承，每个轴承在两个周向端部具有主缸部分和挤压卸载部分。 在第一半轴承的内周面上周向延伸的油槽，油槽的一个周向端部在旋转方向的前侧的周向端面上开口，并且油槽的另一个周向端部 被定位在主缸部分中。 第一半轴承包括至少在旋转方向后侧的挤压部分和主缸部之间的过渡区域，并且第二半轴承包括至少在前侧的挤压部分之间的过渡区域 旋转方向和主缸部。

公开(公告)号：US20170152885A1

公开(公告)日：2017-06-01

申请号：US15358593

申请日：2016-11-22

Applicant: Daido Metal Company Ltd.

Inventor： KENTA KATO ,  OSAMU ISHIGO ,  YASUSHI SAITO

IPC: F16C3/14 ,  F16C9/02 ,  F01M11/02

CPC classification number: F16C3/14 ,  F01M1/06 ,  F01M11/02 ,  F01M2001/062 ,  F01M2011/026 ,  F16C9/02 ,  F16C17/022 ,  F16C17/26 ,  F16C33/046 ,  F16C33/1055 ,  F16C33/1065 ,  F16C35/02

Abstract: There is provided a bearing apparatus of a crankshaft for an internal combustion engine. The bearing apparatus includes a crankshaft having a plurality of journal portions and a plurality of crank pin portions; a main bearing supporting the crankshaft; and a bearing housing holding the main bearing. The plurality of journal portions include a first journal portion having a lubricating oil passage and a second journal portion not having the lubricating oil passage. The first and second journal portions and are supported by the first and second main bearings and. The bearing housing includes an Al alloy upper housing and an Fe alloy lower housing. The groove depth of the oil groove of the upper half bearing of the second main bearing is one half or less than the groove depth of the oil groove of the upper half bearing of the first main bearing.

公开(公告)号：US20160230806A1

公开(公告)日：2016-08-11

申请号：US15017993

申请日：2016-02-08

Applicant: Daido Metal Company Ltd.

Inventor： KENTA KATO ,  YUKI KAWASHIMA

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/1075 ,  F16C2360/22

Abstract: A main bearing includes first and second half bearings, each having a main cylinder portion and crush relief portions in both circumferential end portions. An oil groove circumferentially extends on an inner circumferential surface only of the first half bearing, one circumferential end portion of the oil groove opens on a circumferential end surface on a front side in a rotation direction, and the other circumferential end portion of the oil groove is positioned in the crush relief portion on a rear side in the rotation direction. The first half bearing includes a transition region between the crush relief portion on the front side in the rotation direction and the main cylinder portion, and the second half bearing includes a transition region between the crush relief portion on the rear side in the rotation direction and the main cylinder portion.

Abstract translation: 主轴承包括第一和第二半轴承，每个轴承在两个周向端部具有主缸部分和挤压卸载部分。 在第一半轴承的内周面上周向延伸的油槽，油槽的一个周向端部在旋转方向的前侧的周向端面上开口，并且油槽的另一个周向端部 位于沿旋转方向的后侧的挤压释放部分中。 第一半轴承包括在旋转方向上的前侧的挤压卸载部与主缸部之间的过渡区域，第二半轴承包括在旋转方向后侧的挤压卸载部之间的过渡区域和 主缸部分。