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1. 发明公开

EP3279524A1 SIDE RAIL 失效
标题翻译：侧轨
公开(公告)号：EP3279524A1
公开(公告)日：2018-02-07
申请号：EP16754954.2
申请日：2016-02-17
申请人： Kabushiki Kaisha Riken
发明人： SHIMIZU, Hiroshi , MURAYAMA, Katsumi
IPC分类号： F16J9/06 , F02F5/00 , F16J9/20 , F16J9/26
摘要： A side rail (1) in a sprit ring shape is to be mounted on a space expander (2) and to constitute, together with the space expander (2), a multi-piece oil ring (3) used in an internal combustion engine. The side rail (1) includes an outer peripheral surface (14) facing radially outward, an inner peripheral surface (13) facing radially inward, a first axial surface (11) facing one end of an axial direction, and a second axial surface (12) facing the other end of the axial direction and parallel to the first axial surface (11). A bevelled portion (30) is provided between the outer peripheral surface (14) and the second axial surface (12) and formed in a tapered surface having a diameter gradually decreasing from a position on the outer peripheral surface (14) at 0.05 mm or more from the first axial surface (11) toward the second axial surface (12).
摘要翻译：精磨环形的侧轨（1）将安装在空间膨胀机（2）上并且与空间膨胀机（2）一起构成用于内燃机的多件式油环（3）。侧轨1包括：径向外侧的外周面14，径向内侧的内周面13，面对轴向一端的第一轴向面11和轴向第二轴向面13 12）面向轴向的另一端且平行于第一轴向表面（11）。在外周面（14）和第二轴向面（12）之间设有斜面部（30），该斜面部（30）形成为从外周面（14）的位置起直径从0.05mm逐渐减小的锥面更多地从第一轴向表面（11）朝向第二轴向表面（12）。

2. 发明公开

EP3779244A1 SPACER EXPANDER AND OIL CONTROL RING INCLUDING SAME 有权
公开(公告)号：EP3779244A1
公开(公告)日：2021-02-17
申请号：EP19781732.3
申请日：2019-03-29
申请人： Kabushiki Kaisha Riken
发明人： SHIMIZU, Hiroshi , KOIZUMI, Satoshi , SUDOU, Kenichi , TOKUNAGA, Shigeru , TAKEZAWA, Yuichiro
IPC分类号： F16J9/06 , F02F5/00 , F16J9/26
摘要： An oil control ring according the present disclosure includes a pair of side rails, and a spacer expander disposed between the pair of side rails, in which the spacer expander includes a plurality of lug parts with which inner circumferential surfaces of the side rails are in contact, and a plurality of rail facing parts provided adjacent to the lug parts and facing side surfaces of the side rails, and all or at least a part of the plurality of lug parts satisfy a condition represented by a following inequality (1). W / H ≥ 1.5
In inequality (1), W indicates a width (unit: mm) of each of the lug parts at a position 0.05 mm away from a highest position of the lug part in a direction of each of the rail facing parts, and H indicates a height difference (unit: mm) between a highest position of a region on the rail facing part adjacent to the lug part and the highest position of the lug part.

3. 发明授权

EP3279524B1 SIDE RAIL 失效
公开(公告)号：EP3279524B1
公开(公告)日：2020-11-11
申请号：EP16754954.2
申请日：2016-02-17
申请人： Kabushiki Kaisha Riken
发明人： SHIMIZU, Hiroshi , MURAYAMA, Katsumi
IPC分类号： F16J9/06 , F02F5/00 , F16J9/20 , F16J9/26

4. 发明公开

EP3677764A1 SIDE RAIL 有权
公开(公告)号：EP3677764A1
公开(公告)日：2020-07-08
申请号：EP18865205.1
申请日：2018-09-25
申请人： Kabushiki Kaisha Riken
发明人： IWATA, Yasuhiro , SHIMIZU, Hiroshi , TAKEZAWA, Yuichiro
IPC分类号： F02F5/00 , F16J9/20
摘要： Provided is a side rail 1 having an outer peripheral surface 14 facing radially outward, an inner peripheral surface 13 facing radially inward, a first axial side surface 11 facing one side in an axial direction, and a second axial side surface 12 facing the other side in the axial direction and parallel to the first axial side surface 11, in which, a beveled portion 30 is provided between the outer peripheral surface 14 and the second axial side surface 12, the beveled portion 30 is formed in a tapered surface having a diameter gradually decreasing from a position on the outer peripheral surface 14 at 0.05 mm or more away from the first axial side surface toward the second axial side surface in the axial direction; a tapered surface 30a is provided between a first tapered surface portion 30a1 with an angle of 10° or more to the axial direction and a second tapered surface portion 30a2 provided between the first tapered surface portion 30a1 and the outer peripheral surface 14 and having a smaller angle of inclination to the axial direction than that of the first tapered surface portion.

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