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公开(公告)号：US09206907B2
公开(公告)日：2015-12-08
申请号：US14006432
申请日：2012-12-19
发明人： Junya Nagai , Mika Saito , Tomoya Shibano
CPC分类号： F16J15/3448 , F16J15/164 , F16J15/3272 , F16J15/441
摘要： Provided is a seal ring which has low-friction characteristics and low-leakage characteristics, reduces drive loss of the automatic transmission of an automobile, and contributes to improvement in fuel consumption of the automobile. The seal ring is attached to a shaft groove on the outer peripheral surface of a shaft. A plurality of recessed sections circumferentially spaced apart from each other with pillar sections interposed therebetween are formed at least on the inner peripheral side of a side surface of the seal ring in contact with the shaft groove. The circumferential opposite ends of each of the recessed sections are formed as squeezing portions formed of curved surfaces convex toward the pillar sections. The depth “h” of a deepest portion in which the axial width of the recessed section is the largest is set in the range of 2 to 17 where the axial width of the seal ring is 100.
摘要翻译： 提供了具有低摩擦特性和低泄漏特性的密封环，减少了汽车的自动变速器的驱动损失，有助于提高汽车的燃料消耗。 密封环安装在轴的外周面上的轴槽上。 至少在与轴槽接触的密封环的侧面的内周侧上形成有多个彼此周向间隔开并具有插入其间的柱部分的凹部。 每个凹部的周向相对端形成为由朝向柱部凸出的弯曲表面形成的挤压部。 凹部的轴向宽度最大的最深部的深度“h”设定在密封环的轴向宽度为100的2〜17的范围内。
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公开(公告)号：US10267421B2
公开(公告)日：2019-04-23
申请号：US15025496
申请日：2014-09-17
发明人： Naohisa Ohya , Junya Nagai
摘要： A seal ring includes a center axis, an outer peripheral surface, an inner peripheral surface, a side surface, and a groove. The center axis is a rotation center. The outer peripheral surface is an outward cylindrical surface whose center is positioned at the central axis. The inner peripheral surface is an inward cylindrical surface disposed between the center axis and the outer peripheral surface whose center is positioned at the central axis. The side surface connects the outer peripheral surface and the inner peripheral surface. The groove is formed in a dented groove from the side surface, extends along a radial direction spaced from the outer peripheral surface, has a first end connected to the inner peripheral surface and a second end at an opposite side of the first end, and returns oil entered from the first end to an inner peripheral surface side via the second end.
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公开(公告)号：US09506564B2
公开(公告)日：2016-11-29
申请号：US14234100
申请日：2012-12-19
发明人： Junya Nagai , Mika Saito , Tomoya Shibano
CPC分类号： F16J15/16 , F16J15/002 , F16J15/441
摘要： A plurality of concave portion to be spaced apart from each other in a circumferential direction through a pillar portion is formed in an inner circumferential side of a side surface of a seal ring mounted in a shaft groove formed in an outer circumferential surface of a shaft. The concave portion including a deepest portion, and two inclined portions, connects the inclined portion positioned at an opposite side in a rotational direction and the adjacent pillar portion with a curved surface having a shape convex, and further, makes a width in the circumferential direction of the inclined portion of the rotational direction side smaller than a width in the circumferential direction of the inclined portion of the opposite side in the rotational direction.
摘要翻译： 在安装在形成于轴的外周面的轴槽中的密封环的侧面的内周侧，形成有通过柱部在圆周方向上彼此间隔开的多个凹部。 包括最深部分的凹部和两个倾斜部分将位于旋转方向的相反侧的倾斜部分和相邻的柱部分以具有凸形的弯曲表面连接，并且还使圆周方向的宽度 其旋转方向侧的倾斜部分比旋转方向上相对侧的倾斜部分的圆周方向的宽度小。
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公开(公告)号：US20140319779A1
公开(公告)日：2014-10-30
申请号：US14234100
申请日：2012-12-19
发明人： Junya Nagai , Mika Saito , Tomoya Shibano
IPC分类号： F16J15/16
CPC分类号： F16J15/16 , F16J15/002 , F16J15/441
摘要： A plurality of concave portion to be spaced apart from each other in a circumferential direction through a pillar portion is formed in an inner circumferential side of a side surface of a seal ring mounted in a shaft groove formed in an outer circumferential surface of a shaft. The concave portion including a deepest portion, and two inclined portions, connects the inclined portion positioned at an opposite side in a rotational direction and the adjacent pillar portion with a curved surface having a shape convex, and further, makes a width in the circumferential direction of the inclined portion of the rotational direction side smaller than a width in the circumferential direction of the inclined portion of the opposite side in the rotational direction.
摘要翻译： 在安装在形成于轴的外周面的轴槽中的密封环的侧面的内周侧，形成有通过柱部在圆周方向上彼此间隔开的多个凹部。 包括最深部分的凹部和两个倾斜部分将位于旋转方向的相反侧的倾斜部分和相邻的柱部分连接成具有凸形的弯曲表面，并且还使得沿圆周方向的宽度 其旋转方向侧的倾斜部分比旋转方向上相对侧的倾斜部分的圆周方向的宽度小。
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