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公开(公告)号：US08979379B1
公开(公告)日：2015-03-17
申请号：US14462806
申请日：2014-08-19
Applicant: Daido Metal Company Ltd.
Inventor： Yuki Kawashima , Motohiko Koushima
CPC classification number: F16C33/1065 , F16C9/02 , F16C17/022 , F16C33/046 , F16C2240/40 , F16C2240/42 , F16C2360/22
Abstract: A main bearing for a crankshaft of an internal combustion engine has first and second half bearings forming an axial groove on an inner circumferential side of a butting portion. Each half bearing has a main cylinder portion including a central portion in a circumferential direction, and crush relief portions each extending toward the central portion from an end surface of the half bearing in the circumferential direction with a center angle of 3° to 15°. A plurality of crush relief grooves are formed in each crush relief portion to extend in the circumferential direction and communicate with the axial groove. The first half bearing has an oil groove extending in the circumferential direction and a transition region having an inward protruding curved surface with a wall thickness becoming thinner toward the crush relief portion from the main cylinder portion.
Abstract translation: 用于内燃机的曲轴的主轴承具有在对接部的内周侧上形成轴向槽的第一和第二半轴承。 每个半轴承具有包括在圆周方向上的中心部分的主圆筒部分和从圆周方向的半轴承的端面朝向中心部分以3°至15°的中心角延伸的挤压部分。 在每个挤压释放部分中形成有多个凹陷释放槽，以在圆周方向上延伸并与轴向槽连通。 第一半轴承具有沿圆周方向延伸的油槽，并且具有向内突出的弯曲表面的过渡区域，其中壁厚度从主缸部分朝向压溃释放部分变薄。
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Patent Agency Ranking
公开(公告)号：US09739303B2
公开(公告)日：2017-08-22
申请号：US15017993
申请日：2016-02-08
Applicant: Daido Metal Company Ltd.
Inventor： Kenta Kato , Yuki Kawashima
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.
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公开(公告)号：US09593711B2
公开(公告)日：2017-03-14
申请号：US15018018
申请日：2016-02-08
Applicant: Daido Metal Company Ltd.
Inventor： Kenta Kato , Yuki Kawashima
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。
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公开(公告)号：US09243660B2
公开(公告)日：2016-01-26
申请号：US14462714
申请日：2014-08-19
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Yuki Kawashima , Motohiko Koushima
CPC classification number: F16C9/02 , F16C3/14 , F16C17/022 , F16C33/046 , F16C33/10 , F16C33/1065 , F16C2240/42
Abstract: A main bearing for a crankshaft of an internal combustion engine has first and second half bearings forming an axial groove on an inner circumferential surface of a butting portion. Each half bearing has a main cylinder portion including a central portion, and crush relief portions each extending toward the central portion from an end surface of the half bearing with a center angle of 3° to 15°. A plurality of crush relief grooves are formed in each crush relief portion in the circumferential direction to communicate with the axial groove. An oil groove is formed in the circumferential direction on an inner circumferential surface of the first half bearing. The second half bearing has a transition region having an inward protruding curved surface a wall thickness of which becomes thinner toward the crush relief portion from the main cylinder portion.
Abstract translation: 用于内燃机的曲轴的主轴承具有在对接部的内周面上形成轴向槽的第一和第二半轴承。 每个半轴承具有包括中心部分的主圆筒部分和从半轴承的端面朝向中心部分以3°至15°的中心角延伸的挤压部分。 在每个挤压卸载部分中沿圆周方向形成多个挤压释放槽以与轴向沟槽连通。 在第一半轴承的内周面上沿圆周方向形成油槽。 第二半轴承具有向内突出的弯曲表面的过渡区域，该过渡区域的壁厚从主缸部分朝向压溃释放部分变薄。
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公开(公告)号：US08961018B2
公开(公告)日：2015-02-24
申请号：US13971108
申请日：2013-08-20
Applicant: Daido Metal Company Ltd.
Inventor： Yuki Kawashima , Motohiko Koushima
CPC classification number: F16C3/14 , F16C9/04 , F16C17/022 , F16C33/046 , F16C33/1055 , F16C33/1065 , F16C2240/42 , F16C2240/54 , F16C2360/22
Abstract: A connecting rod bearing fort supporting a crankpin of an internal combustion engine is provided. The crankpin has a discharge port on its surface for supplying lubrication oil to a gap between the crankpin and the connecting rod bearing constituted by a pair of half bearings. The half bearing includes a main cylindrical portion, crush reliefs and transitional regions. A plurality of crush relief grooves are formed in the crush relief to continuously extend in a circumferential direction, and an axial groove is formed at an inner side end edge of the half bearing in the circumferential direction to continuously extend in an axial direction so that the crush relief grooves communicate with the axial groove.
Abstract translation: 提供了一种支撑内燃机曲柄销的连杆轴承座。 曲柄销在其表面上具有用于向曲柄销和由一对半轴承构成的连杆轴承之间的间隙供给润滑油的排出口。 半轴承包括主圆柱形部分，挤压浮雕和过渡区域。 在挤压浮雕中形成有沿周向连续延伸的多个挤压释放槽，在半轴承的内周端部沿圆周方向形成轴向槽，以沿轴向连续延伸， 挤压卸压槽与轴向槽沟通。
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公开(公告)号：US08840307B2
公开(公告)日：2014-09-23
申请号：US13971135
申请日：2013-08-20
Applicant: Daido Metal Company Ltd.
Inventor： Yuki Kawashima , Motohiko Koushima
CPC classification number: F16C3/14 , F16C9/04 , F16C17/022 , F16C33/046 , F16C33/1055 , F16C33/1065 , F16C2240/40 , F16C2240/42 , F16C2240/54
Abstract: According to the invention, there is provided a connecting rod bearing constituted by a half bearing, which has a main cylindrical portion, crush reliefs and a transitional region. The crush relief is formed so that a depth from a virtual inner circumferential surface at a position of an end surface of the half bearing in a circumferential direction is larger than a depth from the virtual inner circumferential surface at a position where the crush relief connects with the transitional region. Further, a plurality of circumferential grooves are provided in the main cylindrical portion to continuously extend in the circumferential direction throughout an entire length of the main cylindrical portion in the circumferential direction, and are continuously provided also in the transitional region.
Abstract translation: 根据本发明，提供一种由半轴承构成的连杆轴承，半轴承具有主圆柱形部分，挤压浮雕和过渡区域。 形成凹凸形状，使得在圆周方向上的半轴承的端面的位置处的假想内周面的深度大于在压溃释放与...的位置连接的位置处的虚拟内周面的深度 过渡地区。 此外，在主圆柱形部分中设置多个周向槽，以在圆周方向的主圆柱形部分的整个长度上沿圆周方向连续延伸，并且也连续地设置在过渡区域中。
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