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公开(公告)号：US11719349B2
公开(公告)日：2023-08-08
申请号：US17527563
申请日：2021-11-16
CPC分类号： F16K11/0716 , F16K27/041 , F25B41/31 , F25B41/32 , F25B41/35 , F16J9/00 , F16J9/064 , F25B2341/06
摘要： A valve assembly includes a valve body defining a cylindrical passage therein about an axis. An inlet port is defined in or near a first end of the valve body. First and second outlet ports are defined in the valve body extending radially outward from the cylindrical passage. A cylindrical valve spool having a central passage is positioned within, and sealingly engaged with, the cylindrical passage. The valve spool is moveable along the axis among: a first position wherein the inlet port is in fluid communication with the first outlet port but not the second outlet port, a second position wherein the inlet port is in fluid communication with the second outlet port but not the first outlet port, and an intermediate position between the first and second positions wherein the inlet port is in fluid communication with both of the first and second outlet ports.
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公开(公告)号：US11098674B2
公开(公告)日：2021-08-24
申请号：US16477232
申请日：2018-01-10
申请人： H.E.F.
摘要： Various implementations include a combustion engine piston, including a skirt in a counter-part and including a first contact area of the piston in the counter-part, a head which extends transverse to a central axis, and a ring carrier which comprises at least two lands and at least two grooves for receiving the rings, including a first land adjoining the head and a second land situated between the first land and the skirt, wherein the lands include at least one contact land having a diameter greater than a minimum diameter of the skirt to form a second contact area of the piston in the counter-part, and wherein at least one contact land comprises a friction-reducing surface coating, formed at least on a radial sector covering an angle of at least 30 degrees, and up to on a single sector covering an angle of 360 degrees.
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公开(公告)号：US10151269B2
公开(公告)日：2018-12-11
申请号：US15184434
申请日：2016-06-16
摘要： An integrally formed piston has a crown portion having an upper crown surface and an undercrown surface. A ring belt extends from the undercrown surface at a periphery thereof. The ring belt includes an uppermost ring land and at least one oil galley contoured to extend around at least two surfaces of the uppermost ring land. The oil galley has an opening at the undercrown surface for receiving a cooling fluid therein for cooling the uppermost ring land. A skirt extends from the undercrown surface and the ring belt and has a plurality of stiffening features arranged in a truss formation. At least one of the plurality of stiffening features has an I-beam cross-section and another of the plurality of stiffening features has a negative draft angle.
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公开(公告)号：US10036345B2
公开(公告)日：2018-07-31
申请号：US14384949
申请日：2013-03-05
发明人： Katsuhiro Tsuji , Akio Shinohara , Masaki Moronuki
摘要： A combination of a cylinder 62 of an internal combustion engine and a piston ring 40 for sliding an inner periphery of the cylinder, wherein at least a sliding face of the cylinder is composed of an aluminum alloy including 8 mass % to 22 mass % of Si and at least one or more particles selected from the group consisting of Si, Al2O3 and SiO2 particles each having a diameter of 3 μm or more, and at least an outer periphery of the piston ring is coated with a hard carbon coating 14 composed only of hydrogen and carbon.
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5.发明授权公开(公告)号：US09903473B2
公开(公告)日：2018-02-27
申请号：US15102470
申请日：2014-12-10
申请人： AREVA NP
发明人： Romain Thuillier
CPC分类号： F16J15/008 , F04D7/06 , F04D7/08 , F04D29/126 , F04D29/146 , F05B2240/57 , F16J15/164 , F16J15/3404
摘要： A method for carrying out emergent shaft sealing for a reactor coolant pump and a shaft sealing assembly is provided. The method comprises the steps that a passive stopping sealing member is arranged in a first sealing assembly and forms an opening under the normal operation condition, without affecting the first sealing assembly using a liquid film formed by fluid static pressure to prevent reactor coolant from leaking along a pump shaft; under the station blackout condition, after sensing high-temperature fluid flowing into the first sealing assembly, the passive stopping sealing member is closed and holds the pump shaft of the reactor coolant pump tightly, the gap between the first sealing assembly and the pump shaft of the reactor coolant pump is blocked, and therefore the reactor coolant is prevented from leaking along the pump shaft.
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6.发明申请公开(公告)号：US20170321623A1
公开(公告)日：2017-11-09
申请号：US15534498
申请日：2015-06-25
申请人： Ning Tao
发明人： Ning Tao , Shaoping Wang
摘要： The present invention discloses an energy-saving and emission-reducing multistage throttling expansion method for engine. In a crevice passage disposed between the combustion chamber and the crankcase, a multistage throttling is disposed for converting pressure energy of the high-pressure blow-by gas into kinetic energy and momentum, and a multistage expansion is disposed for expanding and dissipating the incoming kinetic energy and momentum of the high-velocity blow-by gas into heat, so that to realize the multistage throttling and expansion method, reduce the leaking of the unburned fuel-air mixture and the burned gas, the hydrocarbon emissions hidden in the intra-cylinder carbon deposition and exhaust gas emissions of the engine, and also improve the engine efficiency and the overall performance of the engine.
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公开(公告)号：US09410625B2
公开(公告)日：2016-08-09
申请号：US14351393
申请日：2012-10-10
摘要： To provide a combined oil control ring with a function of preventing the separate rotation of side rails for a long period of time even under fretting fatigue, seating tabs of a spacer expander are provided with substantially longitudinal projections and recesses on their side-rail-pushing surfaces in a circumferential direction, the width m of a bottom surface being larger than the circumferential length m′ of the top surface in each projection, and a surface connecting the top surface to a recess surface having a bulging shape.
摘要翻译： 为了提供组合的油控制环，其具有即使在微动疲劳下也能长时间地防止侧轨的单独旋转的功能，间隔膨胀机的座接片在它们的侧轨推动上设置有大致纵向的突起和凹部 在圆周方向上的表面，底表面的宽度m大于每个突起中的顶表面的周长m'，以及将顶表面连接到具有凸出形状的凹陷表面的表面。
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公开(公告)号：US09404582B2
公开(公告)日：2016-08-02
申请号：US13833800
申请日：2013-03-15
发明人： Marko Wrage , Carlos Fangauf
CPC分类号： F16J15/3232 , B63H23/321 , F16J15/406 , F16N7/36
摘要： A seal arrangement for a ship's propeller shaft includes at least one oil-filled seal chamber bounded by seal rings around the shaft, as well as an oil reservoir tank, an oil supply line connecting the tank to the bottom portion of the seal chamber, an oil circulation pump interposed in the supply line between the tank and the seal chamber, and an oil return line communicating from the upper portion of the seal chamber back to the tank. Thereby, oil is continuously circulated through the seal chamber, and thereby flushes out any contaminant particles, air or water that might enter the seal chamber.
摘要翻译： 用于船舶传动轴的密封装置包括至少一个充满油的密封室，该密封室围绕轴围绕密封环，以及储油箱，将罐连接到密封室的底部的供油管， 油循环泵插入在罐和密封室之间的供应管线中，以及从密封室的上部返回到罐的回油管。 因此，油继续循环通过密封室，从而冲出可能进入密封室的任何污染物颗粒，空气或水。
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公开(公告)号：US09334959B2
公开(公告)日：2016-05-10
申请号：US14476925
申请日：2014-09-04
摘要： In an annular groove carried by one of a pair of reciprocally movable members, a piston ring is carried by the annular groove for sealing the reciprocally movable members for minimizing fluid leakage between the members. The piston ring is an annular member that includes an outer contact surface engagable with the sidewall, an opposed inner surface, an end gap that severs the annular member and that defines spaced-apart first and second ends of the annular member, and annular member tension-relieving notches formed in the inner surface of the annular member. The notches are spaced-apart along the length of the annular member between the first end and the second end, and each notch has a blunt notch tip for inhibiting crack propagation in the annular member from said blunt notch tip when the annular member is tensioned.
摘要翻译： 在由一对往复运动部件中的一个承载的环形槽中，活塞环由环形槽承载，用于密封可往复运动的部件，以最小化部件之间的流体泄漏。 活塞环是环形构件，其包括可与侧壁接合的外接触表面，相对的内表面，切断环形构件并限定环形构件的间隔开的第一和第二端的端部间隙以及环形构件张力 - 形成在环形构件的内表面中的切口。 切口在第一端和第二端之间沿着环形构件的长度间隔开，并且每个凹口具有钝的切口末端，用于当环形构件被张紧时抑制环形构件中的所述钝口槽尖的裂纹扩展。
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公开(公告)号：US09316319B2
公开(公告)日：2016-04-19
申请号：US12957160
申请日：2010-11-30
申请人： Lannie Laroy Dietle
发明人： Lannie Laroy Dietle
CPC分类号： F16J15/441
摘要： A dynamic sealing mechanism for a machine assembly that includes a seal housing of generally cylindrical form having opposed ends, the seal housing axially positioned between a pressure housing and a retaining member and laterally translatable relative to the pressure housing. The dynamic sealing mechanism includes a shaft located at least partially within the seal housing, the shaft having a sealing surface of generally cylindrical form, relatively movable with respect to the seal housing, and having at least one radial bearing positioned radially by the shaft and locating the radial position of the seal housing. At least three fluid pressure-generated forces act axially on the seal housing to produce a net fluid pressure-generated axial force that is negligible.
摘要翻译： 一种用于机器组件的动态密封机构，其包括具有相对端的大致圆柱形形式的密封壳体，所述密封壳体轴向地定位在压力壳体和保持构件之间并且相对于压力壳体可横向平移。 所述动态密封机构包括至少部分地位于所述密封壳体内的轴，所述轴具有大致圆柱形的密封表面，所述密封表面相对于所述密封壳体可相对移动，并且具有至少一个径向轴承， 密封外壳的径向位置。 至少三个流体压力产生的力轴向地作用在密封壳体上以产生可忽略的净流体压力产生的轴向力。
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