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公开(公告)号：EP3321543A1
公开(公告)日：2018-05-16
申请号：EP16821021.9
申请日：2016-06-29
发明人： NATABE, Kazunori , HONJOU, Naoya
摘要： Provided is a piston ring for an internal combustion engine that enables size reduction of a chamfered edge without leading to the chipping, and sufficient size reduction of a flow passage of a blow-by gas in a piston ring gap, thus effectively restraining the blow-by gas from passing through the piston ring gap. A piston ring 1 with a piston ring gap 2 used for an internal combustion engine includes a chamfered edge 3 continuous to at least one of piston ring end faces at the piston ring gap 2 and an outer peripheral surface 1a of the piston ring 1. The chamfered edge 3 has a curved shape.
摘要翻译： 本发明提供一种内燃机用活塞环，其能够实现倒角的边缘的小型化而不会导致碎裂，并且能够充分抑制活塞环间隙中的漏气的流路的小型化， 通过气体穿过活塞环的间隙。 具有用于内燃机的活塞环间隙2的活塞环1包括与活塞环间隙2处的活塞环端面和活塞环1的外周表面1a中的至少一个连续的倒角边缘3。 倒角边缘3具有弯曲的形状。
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公开(公告)号：EP2859256A2
公开(公告)日：2015-04-15
申请号：EP13747503.4
申请日：2013-06-12
发明人： VALLACQUA, Giulio
摘要： The invention relates to a piston (100, 100'') for a fluidic actuator (101), having an axis (A) and comprising: a body (102) sliding axially in an associated hollow cylinder (103); at least one groove (104, 104'') obtained peripherally on the body (102) and extending around axis (A); at least one sealing element (110, 110', 110'') extending around axis (A) and housed in the groove (104, 104'') to exert, in use, a fluidic sealing action against the wall (109) of the associated cylinder (103); and at least one pushing element (111, 111'') extending around axis (A) and housed in the groove (104, 104'') between the body (102) and the sealing element (110, 110', 110'') to exert a radial elastic thrust on said sealing element (110, 110', 110'') towards the outside of the body (102); the sealing element (110, 110', 110'') has, on the side turned towards a bottom surface (108, 108'') of the groove (104, 104"), a recess (120, 120"), which defines a sliding seat for the pushing element (111, 111") and is delimited by two surface portions (116a, 116b; 116a", 116b") forming between them an angle of more than 90° and less than 180°.
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公开(公告)号：EP1533509A4
公开(公告)日：2008-02-27
申请号：EP02743671
申请日：2002-06-20
申请人： BANDO KIKO CO
发明人： BANDO SHIGERU
IPC分类号： F02F1/00 , F02B19/00 , F02B19/10 , F02B23/00 , F02B23/08 , F02F1/18 , F02F3/00 , F02F5/00 , F16J1/00 , F16J9/06
CPC分类号： F02F1/18 , F02B19/108 , F02B23/08 , F02B2019/002 , F02F3/00 , F16J1/001 , F16J9/061 , F16J9/063
摘要： A reciprocating engine (1), comprising a cylinder (2), a piston (3) reciprocatingly moving in X-direction inside the cylinder (2), a connecting rod (5) rotatably connected, at a small end part (4), to the piston (3) through a piston pin (4a), ring grooves (7, 8) disposed adjacently to each other in X- direction and formed in the side peripheral surface (6) of the piston (3), piston rings (9, 10) fitted into the ring grooves (7, 8), a dividing means (14) dividing an annular space (11) formed between the piston rings (9, 10) into a thrust side semi-annular space (12) and an anti-thrust side semi-annular space (13), and a communication means (16) allowing the space (12) to communicate with a combustion chamber (15) for burning air-fuel mixture therein.
摘要翻译： 1。一种往复式发动机，其特征在于，包括缸体，在缸体内沿X方向往复运动的活塞，在小端部可转动地连接的连杆， 通过活塞销（4a）与活塞（3）连接，在X方向上彼此相邻设置且形成在活塞（3）的侧周面（6）中的环形槽（7,8），活塞环 一个将形成在活塞环（9,10）之间的环形空间（11）分成一个推力侧的半环形空间（12）的分隔装置（14）;以及 一个止推侧半环形空间（13）和一个连通装置（16），该连通装置允许空间（12）与燃烧室（15）连通，以燃烧其中的空气燃料混合物。
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公开(公告)号：EP0937216B1
公开(公告)日：2003-04-09
申请号：EP97936679.6
申请日：1997-07-30
申请人： Helpap, Hans
发明人： Helpap, Hans
IPC分类号： F16J9/06
摘要： This invention concerns a packing seal which is intended particularly for reciprocating piston engines and which, for example, can be placed in the groove (31) around the circumference of a piston (22) of a reciprocating engine. The packing seal comprises a first segment ring (1) which has at least two sealing segments (3) with locking segments (4) positioned between them in alternating order. These locking segments (4) and sealing segments (3) taper in opposing directions radially towards the inside and outside respectively in wedge-shaped form. Furthermore, the packing seal comprises at least one additional or second segment ring (20) which also has at least two sealing segments (23) with locking segments (24) positioned alternately between them. The sealing segments (23) and locking segments (24) both taper radially towards the inside. The locking segments (24) extend over a larger arc than the sealing segments (23). The sealing segments (23) of this second segment ring (20) overlay the locking segments (24) of the axially adjacent first segment ring (1) cited above. This additional segment ring (20) of the packing seal (10') is made and designed in such a way that its sealing segments (23) supported by a compressive force derived from the working pressure are reliably pressed against the seat to be sealed without any additional assistance. To prevent the sealing arrangement of the packing seal (10') from coming apart during operation due to rocking motion, a security device (40) is provided which borders a slot present in axial direction between the packing seal (10') and the groove (31) and diminishes this slot, preferably in dependence on the working pressure. This security device (40) can simultaneously diminish the radially-directed working pressure on the packing seal in the groove base (33).
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公开(公告)号：EP0937216A1
公开(公告)日：1999-08-25
申请号：EP97936679.0
申请日：1997-07-30
申请人： Helpap, Hans
发明人： Helpap, Hans
IPC分类号： F16J9
摘要： This invention concerns a packing seal which is intended particularly for reciprocating piston engines and which, for example, can be placed in the groove (31) around the circumference of a piston (22) of a reciprocating engine. The packing seal comprises a first segment ring (1) which has at least two sealing segments (3) with locking segments (4) positioned between them in alternating order. These locking segments (4) and sealing segments (3) taper in opposing directions radially towards the inside and outside respectively in wedge-shaped form. Furthermore, the packing seal comprises at least one additional or second segment ring (20) which also has at least two sealing segments (23) with locking segments (24) positioned alternately between them. The sealing segments (23) and locking segments (24) both taper radially towards the inside. The locking segments (24) extend over a larger arc than the sealing segments (23). The sealing segments (23) of this second segment ring (20) overlay the locking segments (24) of the axially adjacent first segment ring (1) cited above. This additional segment ring (20) of the packing seal (10') is made and designed in such a way that its sealing segments (23) supported by a compressive force derived from the working pressure are reliably pressed against the seat to be sealed without any additional assistance. To prevent the sealing arrangement of the packing seal (10') from coming apart during operation due to rocking motion, a security device (40) is provided which borders a slot present in axial direction between the packing seal (10') and the groove (31) and diminishes this slot, preferably in dependence on the working pressure. This security device (40) can simultaneously diminish the radially-directed working pressure on the packing seal in the groove base (33).
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公开(公告)号：EP0007659A1
公开(公告)日：1980-02-06
申请号：EP79200370.9
申请日：1979-07-06
申请人： KARL SCHMIDT GMBH
摘要： Bei einem Tauchkolben (1) für Kolbenmaschinen mit einem Verdichtungsring und Ölabstreifring (9,10,11) wird zum Zwecke der Erzielung eines möglichst niedrigen Ölverbrauchs bei noch ausreichender Schmierung und möglichst geringem Leckgasdurchlaß als Verdichtungsring ein Rechteckring (4) mit Innenfase (5), mit balliger Lauffläche und mit gebrochenen Laufflächenkanten verwendet. Der Ölabstreifring hat eine Höhe von 1,5 bis 3,0 mm. Die Höhe des Ringsteges (12) zwischen den beiden Ringnuten (2,3) beträgt wenigstens 5 % des Kolbendurchmessers. Das Kaltspiel zwischen dem Ringsteg (12) und dem Zylinder ist kleiner als 0,35 %des Kolbendurchmessers.
摘要翻译： 在用于具有压缩环和油刮环（9,10,11）的活塞机的柱塞活塞（1）中，为了在保持足够的润滑和尽可能减少气体量的情况下实现尽可能低的油耗 作为压缩环，使用具有内斜面（5）的矩形环（4），具有弧形轴承表面和分离的轴承表面边缘。 刮油环的高度为1.5〜3.0mm。 两个环形槽（2,3）之间的环形腹板（12）的高度至少为活塞直径的5％。 环形腹板（12）和气缸之间的冷冲击小于活塞直径的0.35％。
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7.发明公开
公开(公告)号：EP3134665A1
公开(公告)日：2017-03-01
申请号：EP15769025.6
申请日：2015-03-25
申请人： Westport Power Inc.
摘要： A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.
摘要翻译： 公开了一种活塞密封组件，其包括密封件和支撑密封件的密封件加载器。 活塞密封组件包括一个部件，其被设计成将密封加强器定位在活塞槽内的固定的轴向位置。 在一个实施例中，密封加力器具有开口环的形状，其中至少一个侧面成形为将激发器定位在活塞槽内的固定位置。 在其它实施例中，活塞密封组件包括间隔件，该间隔件位于活塞槽内的密封加力器的旁边，并被设计成将密封加强器定位在固定的轴向位置。 活塞密封组件可以包括密封件，该密封件具有在密封件激活器和活塞槽壁之间突出的部分，使得其将密封件加载器定位在活塞槽内的固定的轴向位置。
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公开(公告)号：EP1118805B1
公开(公告)日：2005-10-26
申请号：EP01300096.3
申请日：2001-01-05
发明人： Ishida, Masao
IPC分类号： F16J9/20
CPC分类号： F16J9/063
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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：EP0396775B1
公开(公告)日：1995-12-13
申请号：EP89911893.9
申请日：1989-10-26
摘要： A sealing apparatus for use in sealing a clearance between a cylinder (38) and a piston (50) without using a lubricating oil. An annular groove (66) is formed in the outer circumferential surface of the piston (50). First and second seal members (68, 70) formed out of a resin material are fitted annularly in an axially piled two-stage in this annular groove (66). A third seal member (72) is fitted annularly on the inner side of these first and second seal members (68, 70). On the inner side of the third seal member (72), a non-endless expander ring (74) adapted to press the first and second seal members (68, 70) against the inner circumferential surface of the cylinder (38) via the third seal member (72) is provided. The first, second and thrid seal members (68, 70, 72) are fitted in the groove (66) so that the clearances between both ends of these seal members are staggered from one another in the circumferential directions thereof and not aligned with one another, and, therefore, the three seal members (68, 70, 72) are arranged in the groove (66) as if a single endless ring were fitted therein.
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