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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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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：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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