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公开(公告)号：US08573112B2
公开(公告)日：2013-11-05
申请号：US12087848
申请日：2006-12-14
IPC分类号： F16J15/20
CPC分类号： F04B53/02 , F02M59/102 , F02M59/442 , F04B53/04 , F04B53/164
摘要： To cope with severe use conditions, a high-pressure fuel pump has a seal system (21) for separating/sealing fuel and lubricating oil, in an annular space between an axle reciprocating within the pump and a housing having the axle passing therethrough, wherein the seal system (21) consists of a combination of a fuel-side seal (31) for sealing fuel and lubricating-oil-side seal (41) for sealing lubricating oil, the fuel-side seal (31) is composed of a plastic-made seal ring (32) and a rubbery-elastomer-made O ring (33) for backup of the seal ring (32), the lubricating-oil-side seal (41) consists of a single body of single-lip-type oil seal (42) having a rubbery-elastomer-made seal lip (44) fitted to a metal ring (43) and arranged toward the lubricating oil side, and a distance between the fuel-side seal (31) and the lubricating-oil-side seal (41) is set to be larger than the reciprocating distance of the axle.
摘要翻译： 为了应对严重的使用条件，高压燃料泵具有用于在泵内往复运动的轴与通过其的轴的壳体之间的环形空间中分离/密封燃料和润滑油的密封系统（21），其中 密封系统（21）由用于密封燃料的燃料侧密封件（31）和用于密封润滑油的润滑油侧密封件（41）的组合构成，燃料侧密封件（31）由塑料 所述密封环（32）和用于支承所述密封环（32）的橡胶弹性体制造的O形环（33），所述润滑油侧密封件（41）由单体单唇型 油封（42），其具有安装在金属环（43）上且朝向润滑油侧配置的橡胶弹性体制成的密封唇（44），并且燃料侧密封件（31）和润滑油 侧面密封件（41）被设定为大于轴的往复距离。
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公开(公告)号：US07766339B2
公开(公告)日：2010-08-03
申请号：US11878052
申请日：2007-07-20
申请人： Kyohei Umetsu , Nobuyuki Eguchi
发明人： Kyohei Umetsu , Nobuyuki Eguchi
CPC分类号： F16J9/20 , F16J9/14 , F16J15/441 , F16J15/442
摘要： A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
摘要翻译： 用于密封两个构件之间的环形间隙的密封环，其可相对于彼此旋转。 密封环在滑动面侧的整个圆周上设置有一个凸起部分5，以面对环形凹槽71的侧壁面72.该凸起部5设置成在分开的部分2附近具有径向较小的宽度， 在离开分离部分2的位置处的径向更大的宽度，并且从较窄部分转移到较宽部分的凸起部分5的部分被设定为具有逐渐变化的宽度。
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公开(公告)号：US20060038355A1
公开(公告)日：2006-02-23
申请号：US10522385
申请日：2003-07-25
IPC分类号： B60T11/236
CPC分类号： F16J15/32 , F16J9/14 , F16J9/20 , F16J15/3272 , F16J15/441
摘要： A seal ring which maintains a stable sealing performance over a long term is provided. In a first seal portion 4, linear contact portions which come into linear contact with the sidewall surface of an annular groove on the unsealed fluid side are continuously extended over the whole circumference of the seal ring from one side of a separation portion 2 to the other side thereof, and the linear contact part provided at the convex part 21 of the separation portion 2, and the linear contact part provided at the concave part 24 of the separation portion 2 are located at a distance in the diametric direction of the seal ring.
摘要翻译： 提供了长期保持稳定的密封性能的密封环。 在第一密封部分4中，与非密封流体侧的环形槽的侧壁表面线性接触的直线接触部分在密封环的整个圆周上从分离部分2的一侧连续延伸到另一侧 并且设置在分离部2的凸部21处的线状接触部和设置在分离部2的凹部24的线状接触部位于密封环的直径方向上的距离处。
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公开(公告)号：US20110037235A1
公开(公告)日：2011-02-17
申请号：US12937787
申请日：2009-04-10
申请人： Nobuyuki Eguchi
发明人： Nobuyuki Eguchi
IPC分类号： F16J15/16
CPC分类号： F16J15/3488 , F16J15/3272 , F16J15/441 , Y10T29/49863
摘要： Sandwiching of a foreign matter between a seal ring and a housing is suppressed, and abrasion of the housing and the seal ring is suppressed. The size of the diameter of a second seal portion 3 is set to be larger than the size d2 of the diameter of an inner peripheral face 81 so that the difference in diameter size between the second seal portion 3 and an inner peripheral face 81 of a housing 80 becomes 1.0 mm or less in a state before the ring body is provided in the annular gap.
摘要翻译： 抑制密封环与壳体之间的异物的夹杂，并且抑制壳体和密封环的磨损。 第二密封部3的直径尺寸被设定为大于内周面81的直径的尺寸d2，使得第二密封部3与第二密封部3的内周面81之间的直径尺寸的差异 壳体80在环状体设置在环状间隙之前的状态下变为1.0mm以下。
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公开(公告)号：US20090008883A1
公开(公告)日：2009-01-08
申请号：US12087848
申请日：2006-12-14
IPC分类号： F02F11/00
CPC分类号： F04B53/02 , F02M59/102 , F02M59/442 , F04B53/04 , F04B53/164
摘要： A high-pressure fuel pump with seal system that is usable under the conditions of “high speed”, “high pressure” and “fuel resistance”. There is provided a high-pressure fuel pump comprising an axle capable of reciprocating motion in the pump and seal system (21) for separating/sealing of fuel and lubricating oil as sealing objects in a circular space within a housing having the axle passing therethrough, wherein the seal system (21) consists of a combination of fuel-side seal (31) for sealing of fuel and lubricating-oil-side seal (41) for sealing of lubricating oil. The fuel-side seal (31) is composed of plastic-made seal ring (32) and rubbery-elastomer-made O ring (33) for backup of the seal ring (32). The lubricating-oil-side seal (41) consists of a single body of single-lip-type oil seal (42) wherein rubbery-elastomer-made seal lip (44) fitted to metal ring (43) is arranged so as to face the lubricating oil side. The spacing between the fuel-side seal (31) and the lubricating-oil-side seal (41) is set so as to be larger than the reciprocating motion distance of the axle.
摘要翻译： 具有密封系统的高压燃油泵，可在“高速”，“高压”，“耐燃”的条件下使用。 提供了一种高压燃料泵，其包括能够在泵和密封系统（21）中往复运动的轴，用于将燃料和润滑油作为密封物体分离/密封，所述密封物体在具有穿过其中的轴的壳体内的圆形空间中， 其特征在于，所述密封系统（21）由用于密封燃料的燃料侧密封件（31）和用于密封润滑油的润滑油侧密封件（41）的组合构成。 燃料侧密封件31由塑料制的密封环32和橡胶弹性体O形环33构成，用于支承密封圈32。 润滑油侧密封件（41）由单唇型油封（42）单体构成，其中装配有金属环（43）的橡胶弹性体制成的密封唇（44）被布置成面对 润滑油侧。 燃料侧密封件31和润滑油侧密封件41之间的间隔被设定为大于轴的往复运动距离。
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公开(公告)号：US20050116426A1
公开(公告)日：2005-06-02
申请号：US10507747
申请日：2003-03-12
IPC分类号： F16J9/14 , F16J15/32 , F16J15/447
CPC分类号： F16J15/3272 , F16J9/14
摘要： A seal ring for sealing an annular clearance between two members which are disposed for free rotations relative to each other. At a cut portion which is cut at a portion of the seal ring, there is formed a passage for allowing leakage when the cut end portions engage with each other. This passage is given a sectional shape of square or the like. This passage improves an abrasion resistance.
摘要翻译： 用于密封两个构件之间的环形间隙的密封环，其被设置成相对于彼此自由旋转。 在密封环的一部分被切割的切割部分处，形成有一个通道，用于当切割端部彼此接合时允许泄漏。 该通道具有正方形等的截面形状。 该通道改善了耐磨性。
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公开(公告)号：US20120032405A1
公开(公告)日：2012-02-09
申请号：US13195377
申请日：2011-08-01
申请人： Yasuki NISHIZAWA , Kei ITO , Nobuyuki EGUCHI , Katsuyoshi SAKUMA
发明人： Yasuki NISHIZAWA , Kei ITO , Nobuyuki EGUCHI , Katsuyoshi SAKUMA
IPC分类号： F16J15/16
CPC分类号： F16H55/56 , F16J15/3208
摘要： A sealing structure for a continuously variable transmission, which seals a clearance between a movable sheave and a cylinder. The continuously variable transmission may change a groove width of each pulley of the cylinder by moving a corresponding movable sheave though supply and discharge of a hydraulic pressure to and from the cylinder. The sealing structure includes an outer peripheral side seal member that is ring-shaped and disposed in a ring-shaped groove formed in one of the movable sheave and the cylinder; and an inner peripheral side seal member that is more elastic than the outer peripheral side seal member, ring-shaped, and disposed in a layered manner in the ring-shaped groove on an inner peripheral side with respect to the outer peripheral side seal member. A side of the outer peripheral side seal member where it contacts the inner peripheral side seal member is chamfered.
摘要翻译： 用于无级变速器的密封结构，其密封可动滑轮和气缸之间的间隙。 无级变速器可以通过相对于可动滑轮移动来改变气缸的每个滑轮的槽宽度，但是通过向气缸供给和排出液压。 密封结构包括环形的外周侧密封构件，其设置在形成在可动滑轮和气缸之一中的环形槽中; 以及内周侧密封构件，其比外周侧密封构件更加弹性，环状，并且相对于外周侧密封构件在内周侧的环状槽中分层配置。 外周侧密封构件的与内周侧密封构件接触的一侧被倒角。
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公开(公告)号：US07722051B2
公开(公告)日：2010-05-25
申请号：US12081359
申请日：2008-04-15
申请人： Kyohei Umetsu , Nobuyuki Eguchi
发明人： Kyohei Umetsu , Nobuyuki Eguchi
IPC分类号： F16J9/12
CPC分类号： F16J9/20 , F16J9/14 , F16J15/441 , F16J15/442
摘要： A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
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公开(公告)号：US20080277882A1
公开(公告)日：2008-11-13
申请号：US12081359
申请日：2008-04-15
申请人： Umetsu Kyohei , Nobuyuki Eguchi
发明人： Umetsu Kyohei , Nobuyuki Eguchi
IPC分类号： F16J15/16
CPC分类号： F16J9/20 , F16J9/14 , F16J15/441 , F16J15/442
摘要： A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
摘要翻译： 用于密封两个构件之间的环形间隙的密封环，其可相对于彼此旋转。 密封环在滑动面侧的整个圆周上设置有一个凸起部分5，以面对环形凹槽71的侧壁面72.该凸起部5设置成在分开的部分2附近具有径向较小的宽度， 在离开分离部分2的位置处的径向更大的宽度，并且从较窄部分转移到较宽部分的凸起部分5的部分被设定为具有逐渐变化的宽度。
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公开(公告)号：US20060055120A1
公开(公告)日：2006-03-16
申请号：US10515917
申请日：2004-05-29
申请人： Kyohei Umetsu , Nobuyuki Eguchi
发明人： Kyohei Umetsu , Nobuyuki Eguchi
IPC分类号： F16J9/12
CPC分类号： F16J9/20 , F16J9/14 , F16J15/441 , F16J15/442
摘要： A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
摘要翻译： 用于密封两个构件之间的环形间隙的密封环，其可相对于彼此旋转。 密封环在滑动面侧的整个圆周上设置有一个与环形槽71的侧壁面72相对的凹槽5。 该凸起5被设定为在分离部分2附近具有径向较小的宽度，并且在离开分离部分2的位置处具有径向较小宽度，并且浮雕5的该部分从较窄部分转移到较宽部分 部分被设置为具有逐渐变化的宽度。
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