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公开(公告)号：US07493882B2
公开(公告)日：2009-02-24
申请号：US11847442
申请日：2007-08-30
IPC分类号： F02F5/00
CPC分类号： F16J9/00
摘要： A combination of a cylinder liner and a piston ring, wherein the cylinder liner includes, silicon: 23.0-28.0% by weight, magnesium: 0.80-2.0% by weight, copper: 3.0-4.5% by weight, iron: 0.25% by weight or less, nickel: 0.01% by weight or less, wherein surface roughness profile of the inner circumference surface has Rz=0.5 to 1.0 μm, Rk=0.2 to 0.4 μm, Rpk=0.05 to 0.1 μm, Rvk=0.08 to 0.2 μm, wherein the piston ring includes carbon: 0.6-0.7% by weight, chrome: 13-14% by weight, molybdenum: 0.2-0.4% by weight, silicon: 0.25-0.50% by weight, manganese: 0.2-0.5% by weight, and wherein carbides with the diameter of 5.0 μm and less are 4-10%.
摘要翻译： 气缸套和活塞环的组合，其中气缸套包括：硅：23.0-28.0重量％，镁：0.80-2.0重量％，铜：3.0-4.5重量％，铁：0.25重量％ 以下，镍：0.01重量％以下，其中，内周面的表面粗糙度分布为Rz = 0.5〜1.0μm，Rk = 0.2〜0.4μm，Rpk = 0.05〜0.1μm，Rvk = 0.08〜0.2μm， 其中活塞环包括：0.6-0.7重量％的碳，铬：13-14重量％，钼：0.2-0.4重量％，硅：0.25-0.50重量％，锰：0.2-0.5重量％ 其中直径5.0μm以下的碳化物为4-10％。
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公开(公告)号：US08820750B2
公开(公告)日：2014-09-02
申请号：US13697957
申请日：2011-03-31
摘要： A high-quality internal combustion engine oil ring which stably keeps oil consumption low for a long period and in which the shapes of an upper rail and a lower rail can be formed at low cost with high accuracy. The internal combustion engine oil ring has a recessed stepped portion formed at a corner of a sliding surface of an outer peripheral sliding projection in sliding contact with a cylinder inner wall surface of at least one of a first rail and a second rail constituting an oil ring main body, in a shape in vertical cross-section along a sliding direction of the first rail and second rail, and a wall surface of the recessed stepped portion has an arcuate surface having a radius of curvature of 0.02 mm to 0.08 mm.
摘要翻译： 一种能够以低成本，高精度地形成能够长时间保持油耗低，能够以低成本形成上轨道和下轨道的形状的高品质内燃机油环。 内燃机油环具有形成在外周滑动突起的滑动面的角部的凹形阶梯部，与构成油环的第一轨道和第二轨道中的至少一个的气缸内壁面滑动接触 主体，沿着第一轨道和第二轨道的滑动方向呈垂直截面的形状，并且凹形阶梯部分的壁表面具有曲率半径为0.02mm至0.08mm的弧形表面。
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公开(公告)号：US20130043659A1
公开(公告)日：2013-02-21
申请号：US13575031
申请日：2011-01-28
摘要： Provided is a piston ring such that it is possible to sufficiently inhibit adhesive wear when the piston ring is mounted to a piston for a diesel engine in which at least the piston ring groove in the piston is formed from steel or cast iron. Disclosed is a piston ring mounted to a piston for a diesel engine, wherein the load length ratio (Rmr2) (in accordance with JIS B0601:2001) of the top surface and bottom surface of the piston ring satisfies each of the following conditions: Rmr2 (0.5%, 0.3[mu]m)=20% and Rmr2 (0.5%, 0.4[mu]m)=40%.
摘要翻译： 提供一种活塞环，使得当活塞环安装到用于柴油发动机的活塞时，可以充分地抑制粘合剂磨损，其中活塞中的至少活塞环槽由钢或铸铁形成。 公开了安装在柴油发动机的活塞上的活塞环，其中活塞环的顶面和底面的负荷长度比（Rmr2）（根据JIS B0601：2001）满足以下条件：Rmr2 （0.5％，0.3μm）= 20％，Rmr2（0.5％，0.4μm）= 40％。
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公开(公告)号：US10030772B2
公开(公告)日：2018-07-24
申请号：US13497417
申请日：2010-03-26
摘要： A multi-piece oil ring includes an oil ring main member in which two rails are connected together by a columnar part and which has a roughly I-shaped cross section; and a coil expander disposed in an inner circumferential groove formed on the inner circumferential surface of the columnar. Each rail in the oil ring main member possesses a sliding section protuberance whose tip possesses a jutting portion. The axial length of the jutting portion is 0.02-0.18 mm. The change rate of the axial length of the individual jutting portion is in the range of 0 to 80% at least in a region of from its sliding surface to be faced to a cylinder, which is positioned at the tip of the jutting portion, to a position of 0.03 mm away from the aforementioned sliding surface in the radial direction of the oil ring main member.
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公开(公告)号：US20120261886A1
公开(公告)日：2012-10-18
申请号：US13497417
申请日：2010-03-26
摘要： A multi-piece oil ring includes an oil ring main member in which two rails are connected together by a columnar part and which has a roughly I-shaped cross section; and a coil expander disposed in an inner circumferential groove formed on the inner circumferential surface of the columnar. Each rail in the oil ring main member possesses a sliding section protuberance whose tip possesses a jutting portion. The axial length of the jutting portion is 0.02-0.18 mm. The change rate of the axial length of the individual jutting portion is in the range of 0 to 80% at least in a region of from its sliding surface to be faced to a cylinder, which is positioned at the tip of the jutting portion, to a position of 0.03 mm away from the aforementioned sliding surface in the radial direction of the oil ring main member.
摘要翻译： 多片油环包括油环主构件，其中两个轨道通过柱状部分连接在一起，并且具有大致I形横截面; 以及设置在形成在柱状体的内周面上的内周槽中的线圈膨胀机。 油环主体中的每个轨道具有滑动部分突起，其尖端具有突出部分。 突出部的轴向长度为0.02〜0.18mm。 至少在从其滑动表面到位于突出部分的尖端处的圆筒的区域中，单个突出部分的轴向长度的变化率在0至80％的范围内，至 距上述油环主体的径向滑动面0.03mm的位置。
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公开(公告)号：US09464717B2
公开(公告)日：2016-10-11
申请号：US13575031
申请日：2011-01-28
摘要： Provided is a piston ring such that it is possible to sufficiently inhibit adhesive wear when the piston ring is mounted to a piston for a diesel engine in which at least the piston ring groove in the piston is formed from steel or cast iron. Disclosed is a piston ring mounted to a piston for a diesel engine, wherein the load length ratio (Rmr2) (in accordance with JIS B0601:2001) of the top surface and bottom surface of the piston ring satisfies each of the following conditions: Rmr2 (0.5%, 0.3[mu]m)=20% and Rmr2 (0.5%, 0.4[mu]m)=40%.
摘要翻译： 提供一种活塞环，使得当活塞环安装到用于柴油发动机的活塞时，可以充分地抑制粘合剂磨损，其中活塞中的至少活塞环槽由钢或铸铁形成。 公开了安装在柴油发动机的活塞上的活塞环，其中活塞环的顶面和底面的负荷长度比（Rmr2）（根据JIS B0601：2001）满足以下条件：Rmr2 （0.5％，0.3μm）= 20％，Rmr2（0.5％，0.4μm）= 40％。
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公开(公告)号：US20130181410A1
公开(公告)日：2013-07-18
申请号：US13697957
申请日：2011-03-31
摘要： A high-quality internal combustion engine oil ring which stably keeps oil consumption low for a long period and in which the shapes of an upper rail and a lower rail can be formed at low cost with high accuracy. The internal combustion engine oil ring has a recessed stepped portion formed at a corner of a sliding surface of an outer peripheral sliding projection in sliding contact with a cylinder inner wall surface of at least one of a first rail and a second rail constituting an oil ring main body, in a shape in vertical cross-section along a sliding direction of the first rail and second rail, and a wall surface of the recessed stepped portion has an arcuate surface having a radius of curvature of 0.02 mm to 0.08 mm.
摘要翻译： 一种能够以低成本，高精度地形成能够长时间保持油耗低，能够以低成本形成上轨道和下轨道的形状的高品质内燃机油环。 内燃机油环具有形成在外周滑动突起的滑动面的角部的凹形阶梯部，与构成油环的第一轨道和第二轨道中的至少一个的气缸内壁面滑动接触 主体，沿着第一轨道和第二轨道的滑动方向呈垂直截面的形状，并且凹形阶梯部分的壁表面具有曲率半径为0.02mm至0.08mm的弧形表面。
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公开(公告)号：US20120205876A1
公开(公告)日：2012-08-16
申请号：US13503381
申请日：2009-11-30
IPC分类号： F16J9/26
CPC分类号： F16J9/26 , C23C14/0641 , F16J9/20
摘要： A piston ring is provided at its outer periphery with a sliding surface, wherein in a cross section thereof which is perpendicular to a radial direction of the piston ring, the sliding surface includes a first sliding surface which occupies a predetermined region from one end thereof, and a second sliding surface which occupies a region extending from one end to the other end of the first sliding surface, the first sliding surface is formed of hard film, the second sliding surface is not formed of hard film, and the second sliding surface exists at a position deviated inward from a phantom line extending from the first sliding surface toward the other end.
摘要翻译： 活塞环的外周设有滑动面，在与活塞环的径向垂直的截面中，滑动面包括从其一端占据规定区域的第一滑动面， 以及第二滑动面，其占据从所述第一滑动面的一端延伸到另一端的区域，所述第一滑动面由硬膜形成，所述第二滑动面不由硬膜形成，所述第二滑动面存在 在从第一滑动表面向另一端延伸的虚线向内偏移的位置处。
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