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公开(公告)号：US06875141B2
公开(公告)日：2005-04-05
申请号：US10388004
申请日：2003-03-13
CPC分类号： F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： In a ratchet-type hydraulic tensioner for use with a timing chain of an internal combustion engine, two or more oil reservoirs gradually receive oil fed under pressure from an external source, and supply the oil through a hydraulic valve mechanism to a high pressure oil chamber formed by a plunger and a housing in which the plunger is slidable. Throttle holes, formed in partition walls separating the reservoirs, control the flow of oil from one reservoir to another. An excess oil discharge hole is optionally provided in one of the reservoirs. The invention prevents abnormal protrusion of the plunger, reduces chain noise and component damage due to wear, and rapidly re-establishes proper tension on engine start-up.
摘要翻译： 在与内燃机的正时链一起使用的棘轮型液压张紧器中，两个以上的储油器逐渐接收来自外部源的加压供油，并通过液压阀机构将油供给到高压油室 由柱塞和壳体形成，其中柱塞可滑动。 在分隔储存器的分隔壁中形成的节流孔控制油从一个储存器到另一个储存器的流动。 在其中一个储存器中可选地设置多余的排油孔。 本发明防止柱塞的异常突出，减少由于磨损引起的链条噪音和部件损坏，并且在发动机起动时快速重新建立适当的张力。
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公开(公告)号：US20080207365A1
公开(公告)日：2008-08-28
申请号：US11999230
申请日：2007-12-04
申请人： Tsutomu Namie , Toyonaga Saitoh
发明人： Tsutomu Namie , Toyonaga Saitoh
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859
摘要： In the check valve of a hydraulic tensioner, a bell-shaped retainer is provided with plural, branched, leg portions which resiliently grip the outer surface of a ball seat. Oil induction slots are formed between adjacent branched leg portions of the retainer to provide oil flow paths that are unimpeded by the plunger-biasing spring of the tensioner.
摘要翻译： 在液压张紧器的止回阀中，钟形保持器设置有弹性地夹持球座的外表面的多个分支的腿部。 在保持器的相邻分支腿部之间形成油感应槽，以提供不受张紧器的柱塞偏置弹簧阻碍的油流动路径。
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公开(公告)号：US07713155B2
公开(公告)日：2010-05-11
申请号：US11999230
申请日：2007-12-04
申请人： Tsutomu Namie , Toyonaga Saitoh
发明人： Tsutomu Namie , Toyonaga Saitoh
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859
摘要： In the check valve of a hydraulic tensioner, a bell-shaped retainer is provided with plural, branched, leg portions which resiliently grip the outer surface of a ball seat. Oil induction slots are formed between adjacent branched leg portions of the retainer to provide oil flow paths that are unimpeded by the plunger-biasing spring of the tensioner.
摘要翻译： 在液压张紧器的止回阀中，钟形保持器设置有弹性地夹持球座的外表面的多个分支的腿部。 在保持器的相邻分支腿部之间形成油感应槽，以提供不受张紧器的柱塞偏置弹簧阻碍的油流动路径。
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公开(公告)号：US20060089221A1
公开(公告)日：2006-04-27
申请号：US11214543
申请日：2005-08-30
IPC分类号： F16H7/22
CPC分类号： F01L1/02 , F01L1/053 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859
摘要： In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its exterior. These flat surfaces, in cooperation with the cylindrical inner wall of the plunger, form plural oil passages, each having a segment-shaped cross-section. The oil passages allow flow of oil past the plug to a discharge opening at the front end of the plunger, and the flow of oil is substantially unaffected by circumferential displacement of the oil passages on the periphery of the plug relative to the oil passages on the periphery of the relief valve seat.
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公开(公告)号：US06810907B2
公开(公告)日：2004-11-02
申请号：US10264193
申请日：2002-10-03
IPC分类号： F16H708
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0859 , Y10T137/218 , Y10T137/7852
摘要： In a hydraulic tensioner having a relief valve mechanism in which a spring-biased valve element is reciprocable in a bore, hitting sounds produced by collision of the relief valve element with a plug in the bore, and wear and breakage of the biasing spring, are prevented by providing an oil relief hole in a peripheral wall of the relief valve bore at a position where it is closed by the relief valve element when he relief valve element is moved by a rapid increase in oil pressure.
摘要翻译： 在具有安全阀机构的液压张紧器中，其中弹簧偏压阀元件可在孔中往复运动，撞击安全阀元件与孔中的塞子产生的声音以及偏置弹簧的磨损和破损 通过在安全阀元件通过油压的快速增加而移动时在安全阀元件关闭的位置处在安全阀孔的周壁中设置一个排油孔来防止。
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公开(公告)号：US07618339B2
公开(公告)日：2009-11-17
申请号：US11214543
申请日：2005-08-30
IPC分类号： F16H7/08
CPC分类号： F01L1/02 , F01L1/053 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859
摘要： In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its exterior. These flat surfaces, in cooperation with the cylindrical inner wall of the plunger, form plural oil passages, each having a segment-shaped cross-section. The oil passages allow flow of oil past the plug to a discharge opening at the front end of the plunger, and the flow of oil is substantially unaffected by circumferential displacement of the oil passages on the periphery of the plug relative to the oil passages on the periphery of the relief valve seat.
摘要翻译： 在其柱塞内具有安全阀的液压张紧器中，通过在其外部锻造多个平坦表面来形成压配合到柱塞中的安全阀弹簧接收塞。 这些平坦表面与柱塞的圆柱形内壁协同地形成多个油通道，每个油通道具有段形横截面。 油通道允许油流过塞子到柱塞前端处的排放口，并且油的流动基本上不受插塞周边上的油通道相对于油路上的油通道的周向位移的影响 安全阀座周边。
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公开(公告)号：US07927242B2
公开(公告)日：2011-04-19
申请号：US12113263
申请日：2008-05-01
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859
摘要： In a hydraulic chain tensioner having a housing, a hollow plunger slidable in a plunger-accommodating hole in the housing, and a hollow sleeve extending into the plunger from a bottom of the plunger-accommodating hole, and a check valve mounted at the opposite end of the sleeve, a passage is provided on the outer surface of the sleeve to accelerate the balance of pressure between a first high pressure chamber between the check valve and the protruding end of the plunger and a second high pressure chamber between the inner end of the plunger and the bottom of the plunger-accommodating hole. In an alternative embodiment, balance is accelerated by communication between the second high pressure chamber and an oil reservoir inside the sleeve on the upstream side of the check valve.
摘要翻译： 在具有壳体的液压链张紧器中，可在该壳体中的柱塞容纳孔中滑动的中空柱塞和从柱塞容纳孔的底部延伸到柱塞中的中空套筒以及安装在相对端的止回阀 在套筒的外表面上设置通道，以加速止回阀和柱塞的突出端之间的第一高压室之间的压力平衡，以及第二高压室之间的压力平衡 柱塞和柱塞容纳孔的底部。 在替代实施例中，平衡通过第二高压室与止回阀上游侧的套筒内的储油器之间的连通来加速。
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公开(公告)号：US20080220918A1
公开(公告)日：2008-09-11
申请号：US12006397
申请日：2008-01-02
IPC分类号： F16H7/22
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859
摘要： The hollow plunger of a hydraulic tensioner for an engine timing chain protrudes from a tensioner housing in an oblique downward direction. An inner sleeve fixed to the housing slidably protrudes into the interior of the plunger, and has a ball check valve at its protruding end. Oil is supplied though the sleeve and the check valve to a high pressure oil chamber formed inside the plunger, and flows outward through a two-part leakage path formed by a gap between the sleeve and the interior of the plunger and a gap between the exterior of the plunger and an interior wall of a plunger-accommodating hole in the housing. Any air that enters the tensioner accumulates in a region surrounding the upper end of the sleeve, rather than in the high oil pressure chamber inside the plunger.
摘要翻译： 用于发动机正时链的液压张紧器的中空柱塞从张紧器壳体向斜下方突出。 固定在壳体上的内套筒可滑动地突出到柱塞的内部，并且在其突出端具有球止回阀。 油通过套筒和止回阀供应到形成在柱塞内部的高压油室，并且通过由套筒和柱塞内部之间的间隙形成的两部分泄漏路径向外流动，并且外部 以及所述壳体中的柱塞容纳孔的内壁。 进入张紧器的任何空气积聚在围绕套筒上端的区域中，而不是在柱塞内的高油压室中。
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公开(公告)号：US20080090685A1
公开(公告)日：2008-04-17
申请号：US11880999
申请日：2007-07-25
申请人： Tsutomu Namie , Hiroshi Hashimoto
发明人： Tsutomu Namie , Hiroshi Hashimoto
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0817 , F16H2007/0859
摘要： In a hydraulic tensioner comprising a tensioner body and a hollow plunger slidable in a plunger-receiving hole, a deairing check ball assembly comprises a check ball, a ball seat, a ball retainer and a check ball biasing spring arranged to bias the check ball away from the seat and toward a high pressure chamber formed by a plunger-receiving hole and the interior of the plunger. The deairing check ball assembly can be incorporated into the tensioner body or into the plunger.
摘要翻译： 在包括张紧器本体和可在柱塞接收孔中滑动的中空柱塞的液压张紧器中，脱气止回球组件包括止回球，球座，球保持器和布置成将止回球偏置的止回球偏置弹簧 从座椅到由柱塞接收孔和柱塞的内部形成的高压室。 脱气止回球组件可以结合到张紧器本体或柱塞中。
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公开(公告)号：US07351170B2
公开(公告)日：2008-04-01
申请号：US11032582
申请日：2005-01-10
申请人： Tsutomu Namie
发明人： Tsutomu Namie
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A hydraulic tensioner comprises a hollow plunger slidable in a plunger-accommodating hole in a housing, the plunger and housing forming a high pressure oil chamber. A check valve unit, which includes a check ball and a check ball retainer, allows oil to flow into the oil chamber, but prevents reverse flow. A plunger-biasing spring, disposed inside the high-pressure chamber includes a close-wound portion fitting over the retainer of the check valve unit, and a portion having spaced windings, which extends and compresses axially with protruding and retracting movement of the plunger. The outer diameter of the close-wound portion is greater than the outer diameter of the portion having spaced windings.
摘要翻译： 液压张紧器包括可在壳体中的柱塞容纳孔中滑动的中空柱塞，柱塞和壳体形成高压油室。 止回阀单元包括止回球和止回球保持器，允许油流入油室，但防止反向流动。 设置在高压室内部的柱塞偏置弹簧包括配合在止回阀单元的保持器上的紧密缠绕部分和具有间隔开的绕组的部分，其以柱塞的突出和缩回运动轴向延伸和压缩。 闭合缠绕部分的外径大于具有间隔绕组的部分的外径。
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