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1. 发明专利

JP2008275028A Piston ring 有权
标题翻译：活塞环
公开(公告)号：JP2008275028A
公开(公告)日：2008-11-13
申请号：JP2007117290
申请日：2007-04-26
申请人： Nippon Piston Ring Co Ltd , Stt Kk , エスティーティー株式会社 , 日本ピストンリング株式会社
发明人： TAMEGAI ETSUO , ISHIKAWA YUZO , KARIYA TOMOTAKA , TSURUTA MAKOTO
IPC分类号： F16J9/26 , C10M103/02 , C10M103/06 , C10M105/68 , C10M125/02 , C10M125/04 , C10M125/10 , C10M125/22 , C10M169/04 , C10N20/06 , C10N30/00 , C10N30/06 , C10N40/25 , C10N50/08 , C23C14/32 , F02F5/00
摘要： PROBLEM TO BE SOLVED: To provide a piston ring capable of effectively preventing an aluminum adhering phenomenon to the piston ring.
SOLUTION: This piston ring consists of a piston ring main body and a surface film formed on either of an upper surface and a lower surface of the piston ring main body or both of the upper surface and the lower surface of the piston ring, and the surface film is constituted of heat resistant resin and roughly spherical copper system powder.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够有效地防止活塞环上的铝附着现象的活塞环。解决方案：该活塞环由活塞环主体和形成在活塞环主体的上表面和下表面中的任一个上或活塞环的上表面和下表面中的任一个上的表面膜组成表面膜由耐热树脂和大致球形的铜系粉末构成。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008248986A Piston ring 有权
标题翻译：活塞环
公开(公告)号：JP2008248986A
公开(公告)日：2008-10-16
申请号：JP2007089334
申请日：2007-03-29
申请人： Nippon Piston Ring Co Ltd , Stt Kk , エスティーティー株式会社 , 日本ピストンリング株式会社
发明人： KARIYA TOMOTAKA , ISHIKAWA YUZO , TAMEGAI ETSUO , TSURUTA MAKOTO
IPC分类号： F16J9/26 , F02F5/00
摘要： PROBLEM TO BE SOLVED: To provide a piston ring such that aluminum adhering phenomenon thereto is effectively prevented from occurring.
SOLUTION: This piston ring comprises a piston ring body; and a surface film formed on one of the upper and lower surfaces of the piston ring body or both the upper and lower surfaces of the piston ring. The surface film is formed of a heat resistant resin and a powder formed of a predetermined material contained in the heat resistant resin.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能有效地防止发生铝附着现象的活塞环。解决方案：该活塞环包括活塞环体; 以及形成在活塞环主体的上表面和下表面中的一个上的表面膜或活塞环的上表面和下表面的表面膜。表面膜由耐热树脂和由耐热树脂中所含的预定材料形成的粉末形成。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2009052625A Piston ring 有权
标题翻译：活塞环
公开(公告)号：JP2009052625A
公开(公告)日：2009-03-12
申请号：JP2007218665
申请日：2007-08-24
申请人： Nippon Piston Ring Co Ltd , Stt Kk , エスティーティー株式会社 , 日本ピストンリング株式会社
发明人： TAMEGAI ETSUO , ISHIKAWA YUZO , KARIYA TOMOTAKA , TSURUTA MAKOTO
IPC分类号： F16J9/26 , B05D7/14 , C23C22/07 , F02F5/00
CPC分类号： F16J9/26 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a piston ring that effectively prevents an aluminum adhesion phenomenon to the piston ring.
SOLUTION: A piston ring 60 comprises a piston ring body 61 and a surface coating film 62 on either the upper or lower surface of the piston ring body 61, or both the upper and lower surfaces of the piston ring 60, wherein the surface coating film 62 comprises at least a heat-resistant resin 63 and metal powder 64 contained in the heat-resistant resin 63. A phosphate coating film 65 is formed on a face, formed with the surface coating film 62, in the piston ring body 61 as a base coating film for the surface coating film 62.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种活塞环，其有效地防止活塞环的铝粘附现象。解决方案：活塞环60包括在活塞环体61的上表面或下表面上的活塞环体61和表面涂层膜62，或活塞环60的上表面和下表面两者，其中，表面涂膜62至少包含耐热性树脂63中所含的耐热树脂63和金属粉末64.磷酸盐涂膜65形成在活性环体中形成有表面涂膜62的面上 61作为表面涂膜62的基底涂膜。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2009074539A Piston ring 有权
标题翻译：活塞环
公开(公告)号：JP2009074539A
公开(公告)日：2009-04-09
申请号：JP2008191764
申请日：2008-07-25
申请人： Nippon Piston Ring Co Ltd , Stt Kk , エスティーティー株式会社 , 日本ピストンリング株式会社
发明人： KARIYA TOMOTAKA , TAMEGAI ETSUO , ISHIKAWA YUZO , TSURUTA MAKOTO
IPC分类号： F02F5/00 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To provide a piston ring capable of effectively preventing an aluminum adhesion phenomenon to the piston ring.
SOLUTION: The piston ring includes a piston ring main body and a surface coating film formed on either one or both of upper and lower surfaces of the piston ring main body. The surface coating film has at least an outermost surface layer comprising heat-resistant resin and metal powder included in the heat-resistant resin and a base bottom layer formed nearest to the piston ring main body and comprising heat-resistant resin and metal powder included in the heat-resistant resin. The content of the metal powder included in the base bottom layer is set smaller than that of the metal powder included in the outermost surface layer.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够有效地防止活塞环的铝粘附现象的活塞环。解决方案：活塞环包括活塞环主体和形成在活塞环主体的上表面和下表面的一个或两个上的表面涂层膜。表面涂膜至少具有耐热树脂和包含在耐热树脂中的金属粉末的最外表面层和最靠近活塞环主体形成的基底层，并且包括耐热树脂和金属粉末耐热树脂。包含在基底层中的金属粉末的含量设定为小于包含在最外表面层中的金属粉末的含量。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008057478A Combination of cylinder liner and piston ring 有权
标题翻译：气缸内衬和活塞环的组合
公开(公告)号：JP2008057478A
公开(公告)日：2008-03-13
申请号：JP2006236974
申请日：2006-08-31
申请人： Nippon Piston Ring Co Ltd , 日本ピストンリング株式会社
发明人： HIRAISHI ITSUKI , OGAWA KATSUAKI , ISHIKAWA YUZO , HIRASE TSUKANE , SAMEJIMA KAZUHIRO
IPC分类号： F02F1/00 , C22C21/02 , C22C38/00 , C22C38/22 , C22C38/40 , F02F5/00 , F16J9/26 , F16J10/04
CPC分类号： F16J9/00
摘要： PROBLEM TO BE SOLVED: To implement weight reduction, reduced friction, and reduced abrasion, by providing combination of a cylinder liner and a piston ring.
SOLUTION: The cylinder liner 1 has a composition containing, by mass, 23.0 to 28.0 mass% Si, 0.80 to 2.0 mass% Mg, 3.0 to 4.5 mass% Cu, 0.25 mass% or less of Fe, 0.01 mass% or less of Ni, and the balance Al with inevitable impurities. In the surface roughness of the inner peripheral face, 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 are satisfied. On the other hand, the piston ring has a composition containing, 0.6 to 0.7 mas% Co, 12 to 14 mass% Cr, 0.2 to 0.4 mass% Mo, 1.0 mass% or less of Si, 1.0 mass% or less of Mn, and the balance Fe with inevitable impurities. Carbide of 5.0 μm or less in diameter is contained therein at a rate of 4 to 10% in area ratio. In the surface roughness of the outer peripheral sliding face, Rz=0.8 μm or less, and Rpk=0.15 μm or less are satisfied.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过提供缸套和活塞环的组合来实现减轻重量，减少摩擦和减少磨损。气缸套1具有以质量计含有23.0〜28.0质量％的Si，0.80〜2.0质量％的Mg，3.0〜4.5质量％的Cu，0.25质量％以下的Fe，0.01质量％或较少的Ni，余量为Al与不可避免的杂质。在内周面的表面粗糙度中，Rz = 0.5〜1.0μm，Rk = 0.2〜0.4μm，Rpk = 0.05〜0.1μm，Rvk = 0.08〜0.2μm。另一方面，活塞环的组成为：含有0.6〜0.7mas％的Co，12〜14质量％的Cr，0.2〜0.4质量％的Mo，1.0质量％以下的Si，1.0质量％以下的Mn，余量为Fe与不可避免的杂质。以其面积比为4〜10％的比例含有直径5.0μm以下的硬质合金。外周滑动面的表面粗糙度Rz =0.8μm以下，Rpk =0.15μm以下。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2011137383A Rotation-stop structure of two-piece oil ring 审中-公开
标题翻译：两油环的旋转停止结构
公开(公告)号：JP2011137383A
公开(公告)日：2011-07-14
申请号：JP2009296018
申请日：2009-12-25
申请人： Nippon Piston Ring Co Ltd , 日本ピストンリング株式会社
发明人： KAMATA RYOSUKE , KAJIWARA MASATO , ISHIKAWA YUZO
IPC分类号： F02F3/00 , F02F5/00 , F16J9/06 , F16J9/24
摘要： PROBLEM TO BE SOLVED: To provide a rotation-stop structure of a two-piece oil ring, reducing aggressiveness and preventing an oil scraping function from reducing of an oil ring at a cylinder inner wall face, inhibiting increase of a manufacturing cost and excelling in ease of installation work. SOLUTION: The rotation-stop structure prevents the two-piece oil ring arranged in an oil ring groove of a piston from rotating relatively to the circumferential direction in the oil ring groove. The rotation-stop structure uses a structure for preventing the two-piece oil ring from rotating in the circumferential direction in the oil ring groove by providing a coil expander locking means on a piston side, which can lock a coil expander to the piston in a state that the two-piece oil ring is arranged in the oil ring groove. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种两件式油环的止转结构，降低了侵蚀性并且防止油刮削功能减小了缸体内壁面上的油环，从而抑制了制造成本的增加并且易于安装工作。解决方案：旋转停止结构防止布置在活塞的油环槽中的两件式油环相对于油环槽中的圆周方向旋转。旋转停止结构使用在活塞侧设置线圈膨胀机锁定机构来防止两片式油环在油环槽内沿圆周方向旋转的结构，该活塞侧可以将线圈膨胀机锁定在活塞上表示两片油环布置在油环槽中。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010084869A Method for manufacturing oil ring body 有权
标题翻译：制造油圈体的方法
公开(公告)号：JP2010084869A
公开(公告)日：2010-04-15
申请号：JP2008255771
申请日：2008-09-30
申请人： Nippon Piston Ring Co Ltd , 日本ピストンリング株式会社
发明人： KAMATA RYOSUKE , ISHIKAWA YUZO
IPC分类号： F16J9/06 , F02F5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an oil ring body improved in both oil seal function and frictional force reducing function.
SOLUTION: The method includes: an arrangement step of alternately arranging an oil ring body 2 and a ring-like spacer 11 having the same diameter as the oil ring body 2, and fixing them to a rotating shaft of a tool so that the outer circumference has substantially a circular shape as viewed from a cylinder axial direction while closely fitting a first rail and a second rail constituting the oil ring body 2 to the ring-like spacer 11; and a round-processing step of driving the rotating shaft onto which the oil ring body 2 and the spacer 11 are alternately aligned and fixed while pressing an abrasive member onto the outer circumference of the first rail and second rail constituting the oil ring body 2 and the spacer 11, and chamfering inner circumferential end portions of the contact areas of the outer circumferential sliding surface of the first rail and the second rail contacting with a cylinder liner inner wall surface.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在油封功能和摩擦力降低功能方面改进的油环体的制造方法。解决方案：该方法包括：交替地布置具有与油环体2相同直径的油环主体2和环形间隔件11，并将其固定到工具的旋转轴的布置步骤，使得从圆柱体轴向观察时，外周形状大致为圆形，同时将构成油环2的第一轨道和第二轨道紧密配合到环状间隔件11上; 以及在将研磨部件按压到构成油环主体2的第一轨道和第二轨道的外周上的情况下驱动旋转轴的旋转轴，其中油环体2和间隔件11交替对准并固定在其上，间隔件11和第一轨道的外周滑动面与第二轨道的接触区域的倒角内周端部与气缸套内壁面接触。版权所有（C）2010，JPO＆INPIT

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