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公开(公告)号：EP2734753A1
公开(公告)日：2014-05-28
申请号：EP12737703.4
申请日：2012-05-30
摘要： The invention relates to an oil scraper ring, comprising a main body (2) having a radially outer running surface (3), a radially inner peripheral surface (6), and an upper (8) and a lower (7) flank, the ring having at least two running surface webs (4, 5), which, if necessary, are provided with a wear-resistant coating (15), the webs conically tapering at a predeterminable angle from the main body radially in the direction of the end (10) thereof facing a counter-running surface and forming limbs (11, 13), and the free end (10) of the running surface webs (4, 5) being configured at least partially obliquely extending from a region (O) on the oil chamber side in the direction of a region (8) on the combustion chamber side, wherein the respective transition regions are configured in a rounded manner, on the one side from the oblique region (12) of the running surface web (4, 5) to the limbs (11, 13) and on the other side from the limbs (11, 13) to the main body (2), wherein the oblique region (12) of the running surface web (4, 5) is in operative connection with a cylindrical portion (14) extending in the direction of the region (O) on the oil chamber side, the radius (R) of the scraper edge provided in the cylindrical portion (14) is 0.02 to 0.2 mm, and the flank angle is ≤ 18° and the width of the respective cylindrical portion (14) is
摘要翻译： 本发明涉及一种刮油环，该刮油环包括具有径向外运行表面（3），径向内周表面（6）以及上部（8）和下部（7）侧面的主体（2），所述 所述环具有至少两个运行表面接片（4,5），如果需要，所述表面接片（4,5）设置有耐磨涂层（15），所述接片在距所述主体的预定角度 （10）朝向反作用表面并形成分支（11,13），并且所述运行表面接片（4,5）的所述自由端（10）被构造为至少部分地从位于所述反作用表面上的区域（O） 在所述行驶面腹板（4）的所述倾斜区域（12）的所述一侧上，在所述燃烧室侧的区域（8）的方向上的所述油室侧，其中所述相应的过渡区域以倒圆的方式构造， 5）分支到肢体（11,13），另一侧从肢体（11,13）到主体（2），其中，倾斜的r 所述运行表面接片（4,5）的外缘（12）与沿所述油室侧的区域（O）的方向延伸的圆柱形部分（14）可操作地连接，所述刮刀边缘的半径（R） 设置在所述圆柱形部分（14）中的宽度为0.02至0.2mm，并且所述侧面角度≤18°且各个圆柱形部分（14）的宽度<0.15mm。
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82.发明公开
公开(公告)号：EP2240711A1
公开(公告)日：2010-10-20
申请号：EP08869990.5
申请日：2008-12-22
摘要： A piston ring (100) is disclosed that includes a radially extending upper surface (110), a radially extending lower surface (102), a radially innermost surface (114) extending between the upper surface and the lower surface, and a radially outermost surface (106) extending between the upper surface and the lower surface. The lower surface (102) includes a thermally sprayed coating (104), and both the radially outermost surface and the upper surface lack the coating. Accordingly, the thermally sprayed coating (104)may generally be applied solely to the lower radially extending surface (102) of the ring.
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公开(公告)号：EP1936245A1
公开(公告)日：2008-06-25
申请号：EP07119888.1
申请日：2007-11-02
申请人： Wärtsilä Schweiz AG
发明人： Räss, Konrad
IPC分类号： F16J9/20
CPC分类号： F16J9/206
摘要： Die Erfindung betrifft einen Kolben (3) für einen Zweitakt-Gossdieselmotor, umfassend einen Ölsammelring (1) zur Bildung einer Kolbenringpackung (2) für einen Kolben (3) eines Zweitakt-Grossdieselmotors, welcher Kolben (3) im Einbauzustand entlang einer Zylinderwand (4) eines Zylinders (5) des Zweitakt-Grossdieselmotors hin- und her bewegbar angeordnet ist, und wobei die Kolbenringpackung (2) einen einem Brennraum (6) des Zylinders (5) am nächsten gelegenen ersten Kolbenring (7) mit einer ersten Lauffläche (701), sowie den Ölsammelring (1) mit einer Sammelringlauffläche (101) umfasst. Der erste Kolbenring (7) ist in einer ersten Kolbenringnut (702) und der Ölsammelring (1) in einer Sammelringnut (102) des Kolbens (3) derart angeordnet, dass im Betriebszustand die erste Lauffläche (701) des ersten Kolbenrings (7) und die Sammelringlauffläche (101) des Ölsammelrings (1) mit einer Zylinderlauffläche (401) der Zylinderwand (4) in reibendem Kontakt stehen. Erfindungsgemäss weist der Kolben (3) im Bereich der Sammelringnut (102) und / oder in der Sammelringnut (102) eine Schmierölöffnung auf, wobei der Kolben (3) derart ausgestaltet ist, dass durch die Schmierölöffnung aus dem Inneren des Kolbens (3) Schmieröl auf die Zylinderlauffläche aufbringbar ist.
摘要翻译： 活塞包括用于形成活塞环垫圈（2）的油报废环（1）。 活塞环垫圈具有在气缸（5）的燃烧室（6）中具有支承面（701）的活塞环（7），并且所述排油环具有累积环承载面（101）。 在累积的环槽（102）的区域设置润滑油开口。 活塞形成为使得来自润滑油开口的润滑油被施加到活塞的气缸承载面（401）上。
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公开(公告)号：EP1660792B1
公开(公告)日：2007-01-03
申请号：EP04762747.6
申请日：2004-09-02
申请人： MAHLE GMBH
摘要： The invention relates to an oil scraper ring for pistons of internal combustion engines, said oil scraper ring comprising a disc (1) that is provided with parallel flanks and a bearing surface (h) having an asymmetrical crowned form with a vertex line (3) extending over the periphery of the disc. A bracing spring (4) arranged in a ring groove (7) of the piston and comprising a spring groove side (6) opposing the piston head and a spring groove side (5) facing the piston head presses the disc (1) radially against the cylinder wall (8). The aim of the invention is to achieve an improved oil scraping action compared to that of prior art, while reducing the friction and the abrasion of the bearing surface. To this end, at least one of the spring groove sides (5, 6) extends at an angle (ss) in relation to the piston axis (10) in such a way that it is radially outwardly inclined to the bracing spring end oriented towards the cylinder, the bearing surface (h) of the disc (1) being embodied in such a way that it corresponds to an almost worn end contour in the started engine state, and, when the oil scraper ring (1) is mounted in the piston, the vertex line (3) of the bearing surface (h) is oriented in the direction of the ring groove side (6) opposing the piston head.
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公开(公告)号：EP0800627B1
公开(公告)日：2005-01-19
申请号：EP96936295.3
申请日：1996-10-09
发明人： EVANS, John, W.
IPC分类号： F16J9/06
摘要： A piston ring assembly includes a piston (12), and at least one piston ring (20) positioned within a piston groove (18). Stabilization and support of the piston (12) is provided by a support arrangement, including at least one support member (22) positioned radially between a back wall of the ring groove and the piston ring. The support arrangement desirably acts to accommodate transverse loads exerted upon the piston during normal operation, and can optionally be configured for enhanced sealing of gases.
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公开(公告)号：EP1413806A1
公开(公告)日：2004-04-28
申请号：EP02755692.7
申请日：2002-07-30
发明人： YOSHIDA, Hideki , SATO, Akira , HELLE, Rolf
CPC分类号： F16J9/206
摘要： In a corner portion (2) defined between an outer peripheral surface (4) and a lower-side surface (3) of a steel piston ring (1), a groove (5, 6) having either an approximately quadrangular shape with a length of one side of 0.05 to 0.4 mm or an approximately quarter circular shape having a radius of 0.05 to 0.4 mm is formed. A sharp edge (9) formed by the groove (5, 6) performs an oil scraping function and the groove (5, 6) works to reduce an oil pressure of a second land or a third land clearance between the cylinder bore and the piston.
摘要翻译： 在钢活塞环（1）的外周面（4）和下侧面（3）之间形成的角部（2）中，形成有具有长度大致四边形形状的槽（5,6） 形成0.05至0.4mm的一侧或大约四分之一圆形，半径为0.05至0.4mm。 由凹槽（5,6）形成的尖锐边缘（9）执行油刮擦功能，并且凹槽（5,6）起作用以降低第二台面或第三台面间隙的油压，所述第二台面或第三台面间隙在缸孔与活塞 。
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公开(公告)号：EP1184558A4
公开(公告)日：2003-07-23
申请号：EP00930969
申请日：2000-06-06
申请人： ZHU ZHIHONG , WANG BAODONG
发明人： ZHU ZHIHONG , WANG BAODONG
摘要： A piston ring assembly consists of an upper ring and a lower ring. Said upper ring and lower ring have a common axis, an outer toward common annular surface, and an inner toward common annular surface and mutual contact surfaces. Said two contact surfaces keep to contact with each other in a contact section which has radially an outer end and an inner end. Said two contact surfaces stretch radially oppositely from said outer end to form a first wedge space, the vertex of which being in the outer end, with said outer toward common annular surface. The vertex angle is about 10" - 1 DEG 30". The distance between said outer end and said outer toward common annular surface is greater than the distance between said inner end and said inner toward common annular surface. The present invention also includes a piston wherein said piston ring assembly is being used.
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公开(公告)号：EP1315924A1
公开(公告)日：2003-06-04
申请号：EP01955244.7
申请日：2001-07-11
申请人： Mahle GmbH
发明人： BRUNKE, Hans-Ulrich
IPC分类号： F16J9/20
摘要： The invention relates to a slot piston ring (1) for the pistons of internal combustion engines or compressors, having a peripheral recess (9) (a so-called scraper ring) that extends close to the slot (2) on the external periphery (3) of the piston facing away from the combustion chamber. The aim of the invention is to reduce oil consumption and the amount of leakage gas of such a piston. To this end, the recess is configured to extend from a zone (10) diametrically opposite the slot, starting with a maximum height (12) which gradually decreases to zero (13) in the direction of the slot or close to the slot.
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公开(公告)号：EP0940607A3
公开(公告)日：2000-05-03
申请号：EP99101941.5
申请日：1999-01-29
IPC分类号： F16J9/20
摘要： Die Erfindung betrifft einen Ölabstreifkolbenring 1 für Brennkraftmaschinen, bestehend aus einem flexiblen, einen U-förmigen Querschnitt aufweisenden Metallband, mit radial gerichteten, federnden Schenkeln 3, 3'. Im U-förmigen Raum ist ein Kunststoff-Montagering 5 angeordnet, der sich bei Betrieb der Brennkraftmaschine auflöst.
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90.发明公开Segment de piston, en particulier pour moteur à combustion interne 审中-公开Kolbenring，insbesonderefürBrennkraftmaschine
公开(公告)号：EP0927841A1
公开(公告)日：1999-07-07
申请号：EP99400005.7
申请日：1999-01-04
发明人： Fefeu, Michel Alain
IPC分类号： F16J9/20
摘要： Chaque bande 8 du segment comporte, à partir de sa portée 10 sur le cylindre 7, un chanfrein 11, un premier palier 13, une section d'épaisseur décroissante 15 et un second palier 16 d'épaisseur sensiblement inférieure à celle du premier palier.
Grâce à ces dispositions on augmente considérablement la durée de vie du segment, en retardant le moment de l'apparition d'une augmentation sensible de la consommation d'huile à la fin de la durée de vie du segment.摘要翻译： 活塞环（8）具有U形横截面，其内表面与邻近气缸壁（7）的倾斜表面（11）制成，之后是平坦台阶（13），第二斜面（15） ）与第一平面相反的方向倾斜，以及第二平坦台阶（16）。 在两个步骤区域中的每一个中的活塞环的厚度大致恒定，而在第一步骤的区域比第二步骤更厚。 该设计的变型可以具有第三斜面和与第一斜面至少相同厚度的第三步骤。
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