公开(公告)号：US20130156358A1

公开(公告)日：2013-06-20

申请号：US13706774

申请日：2012-12-06

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Osamu ISHIGO ,  Yuichi TOMITA ,  Motohira YAMADA

IPC: F02B77/00

CPC classification number: F02B77/00 ,  F16C9/02 ,  F16C17/022 ,  F16C33/1045 ,  F16C33/1065 ,  F16C2240/40 ,  F16C2360/22

Abstract: A main bearing for a crankshaft of an internal combustion engine comprises a pair of semi-cylindrical bearings. An oil groove extends on an inner circumferential surface of one semi-cylindrical bearing in a circumferential direction so that the center thereof in an axial direction aligns with that of an inlet opening of a lubricating oil path in a journal section of the crankshaft. The oil groove does not extend up to an axial direction groove formed at a joint portion of the semi-cylindrical bearings so that a separation inner circumferential surface extends between a circumferential direction end portion of the oil groove and the axial direction groove. The length of the separation inner circumferential surface is smaller than that of the inlet opening in the circumferential direction.

Abstract translation: 用于内燃机的曲轴的主轴承包括一对半圆柱形轴承。 油槽在一个半圆柱形轴承的圆周方向的内圆周表面上延伸，使得其轴向方向的中心与曲轴的轴颈部分中的润滑油路的入口开口对准。 油槽不延伸到形成在半圆柱形轴承的接合部处的轴向槽，使得分离内周面在油槽的圆周方向端部与轴向槽之间延伸。 分离内周面的长度比圆周方向的入口长度小。

公开(公告)号：US20130251294A1

公开(公告)日：2013-09-26

申请号：US13764871

申请日：2013-02-12

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Osamu ISHIGO ,  Yuichi TOMITA ,  Motohira YAMADA

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C9/04 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C2360/22

Abstract: A bearing apparatus for a crankshaft of an internal combustion engine having a main bearing and a connecting rod bearing is provided. The main bearing comprises a pair of semi-cylindrical bearings, only one of which has an oil groove extending in a circumferential direction on an inner circumferential surface thereof. The oil groove is separated from an axial groove formed at a joint portion of the semi-cylindrical bearings by a separation inner circumferential surface of which a length L1 in the circumferential direction is smaller than a length L2 of an inlet opening of a journal portion in the circumferential direction. The connecting rod bearing also comprises a pair of semi-cylindrical bearings, and has axial grooves and crush reliefs with appropriate dimensions at joint portions thereof.

Abstract translation: 提供一种具有主轴承和连杆轴承的内燃机的曲轴的轴承装置。 主轴承包括一对半圆柱形轴承，其中只有一个在其内圆周表面上具有沿圆周方向延伸的油槽。 油槽与形成在半圆筒形轴承的接合部的轴向槽分离，其分隔内周面的圆周方向的长度L1小于轴颈部的入口的长度L2 圆周方向。 连杆轴承还包括一对半圆柱形轴承，并且在其接合部分具有适当尺寸的轴向凹槽和挤压浮雕。

公开(公告)号：US20130209014A1

公开(公告)日：2013-08-15

申请号：US13750527

申请日：2013-01-25

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Aisuke KUWABARA ,  Osamu ISHIGO ,  Yasushi SAITO

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C17/02 ,  F16C33/10

Abstract: A split-type sliding bearing for a crankshaft in an internal combustion engine incorporated in a split-type bearing housing. The sliding bearing consists of a pair of semi-cylindrical bearing bodies combined with each other to form a cylindrical body. The bearing housing has a cylindrical bearing retaining bore and consists of a pair of housing halves. One of the housing halves has a relatively lower stiffness, and the other has a relatively higher stiffness. One of the bearing bodies is held by the housing half having a relatively lower stiffness. The other bearing body is held by the housing half having a relatively higher stiffness. The bearing bodies have an equal outer diameter to each other, and both of the circumferential end parts of one bearing body have a larger thickness than those of the other bearing body prior to incorporation into the housing halves.

Abstract translation: 一种用于内燃机中的曲轴的分体式滑动轴承并入分体式轴承座中。 滑动轴承由一对相互组合的半圆柱形轴承体组成，形成圆柱体。 轴承座具有圆柱形轴承保持孔，由一对外壳半部组成。 其中一个外壳半部具有相对较低的刚度，另一个具有相对较高的刚度。 一个轴承体由具有相对较低刚度的壳体半部保持。 另一个轴承体由具有相对较高刚度的壳体半部保持。 轴承体具有彼此相等的外径，并且一个轴承体的两个圆周端部在其结合到壳体半部之前具有比另一个轴承体更大的厚度。

公开(公告)号：US20130251293A1

公开(公告)日：2013-09-26

申请号：US13786946

申请日：2013-03-06

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Osamu ISHIGO ,  Motohiko KOUSHIMA

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C9/04 ,  F16C17/022 ,  F16C33/046 ,  F16C33/103 ,  F16C33/1065 ,  F16C2240/42 ,  F16C2360/22

Abstract: A half bearing for supporting a crank shaft of an internal combustion engine is provided. The half bearing having a main semi-cylindrical part, two crush reliefs, and two transition regions. Each crush relief has a depth from a imaginary plane at a circumferential end surface of the half bearing greater than a depth from the imaginary plane at a connecting position between each crush relief and the transition region. A plurality of circumferential grooves extend in a circumferential direction in the main semi-cylindrical part along their entire length in the circumferential direction, and the plurality of circumferential grooves extend also in the transition region continuously.

Abstract translation: 提供用于支撑内燃机的曲轴的半轴承。 半轴承具有主半圆柱形部分，两个挤压浮雕和两个过渡区域。 每个挤压浮雕在半轴承的周向端面处具有来自虚拟平面的深度，大于在每个挤压浮雕和过渡区域之间的连接位置处的距离虚拟平面的深度。 多个周向槽沿主圆周方向的圆周方向沿圆周方向的整个长度延伸，多个周向槽也在过渡区域中连续延伸。

公开(公告)号：US20130223776A1

公开(公告)日：2013-08-29

申请号：US13764884

申请日：2013-02-12

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Motohiko KOUSHIMA ,  Osamu ISHIGO

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C9/04 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C2240/42 ,  F16C2360/22

Abstract: A plain bearing for supporting a crank shaft of an internal combustion engine is provided. The plain bearing is constituted by a pair of semicylindrical members. A crush relief is formed in an inner circumferential surface of the semicylindrical member, and a main cylindrical surface is formed in a region aside from the crush relief. The crush relief includes an outwardly convex curved surface and an inwardly convex curved surface.

Abstract translation: 提供了用于支撑内燃机的曲轴的滑动轴承。 滑动轴承由一对半圆柱构​​件构成。 在半圆柱形构件的内圆周表面上形成有凹凸，并且在与压溃浮雕相对的区域中形成主圆柱面。 挤压浮雕包括向外凸的弯曲表面和向内凸出的弯曲表面。

公开(公告)号：US20130182981A1

公开(公告)日：2013-07-18

申请号：US13739298

申请日：2013-01-11

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Osamu ISHIGO ,  Yuichi TOMITA ,  Motohira YAMADA

IPC: F16C9/02

CPC classification number: F16C9/02 ,  F16C3/14 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C2360/22

Abstract: A main bearing for a crankshaft of an internal combustion engine is composed of a pair of semi-cylindrical bearings. An oil groove extending in a circumferential direction is formed on an inner circumferential surface of one semi-cylindrical bearing. The oil groove has the depth gradually decreasing toward a circumferential end surface of the one semi-cylindrical bearing, and defines a circumferential end portion on the circumferential surface without extending to an axial groove formed in a joint portion of the pair of semi-cylindrical bearings. An extension portion of the inner circumferential surface extends between the circumferential end portion and the axial groove, and a plurality of circumferential grooves extending in the circumferential direction is formed on the extension portion from the oil groove to the axial groove over an entire width of the circumferential end portion of the oil groove.

Abstract translation: 用于内燃机曲轴的主轴承由一对半圆柱形轴承组成。 在一个半圆柱形轴承的内圆周表面上形成沿圆周方向延伸的油槽。 所述油槽的深度朝向所述一个半圆柱形轴承的周向端面逐渐减小，并且在所述圆周表面上限定圆周端部，而不延伸到形成在所述一对半圆柱形轴承的接合部分中的轴向槽 。 内周面的延伸部在周向端部和轴向槽之间延伸，并且在延伸部上形成有从圆周方向延伸的多个周向槽，从而在整个宽度方向上从油槽到轴向槽 油槽的圆周端部。