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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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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：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：US20110152022A1
公开(公告)日：2011-06-23
申请号：US12963188
申请日：2010-12-08
IPC分类号： F16H7/08
CPC分类号： F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0842
摘要： A tensioner unit comprises a tensioner body, a gasket in overlapping relationship to the tensioner body whereby the gasket can be sandwiched between the tensioner body and a mounting surface to which the tensioner body is to be secured, and a threaded mounting bolt inserted through a mounting hole in the tensioner body for securing the tensioner body to the mounting surface. A bolt hole is provided in the gasket, and the mounting bolt also extends through the bolt hole. The gasket grips the bolt and holds the mounting bolt, the gasket, and the tensioner body, in fixed relationship to one another, and maintains the gasket in a predetermined aligned relationship with the tensioner body when the gasket is in overlapping relationship with the tensioner body during mounting of the tensioner body on the mounting surface.
摘要翻译： 张紧器单元包括张紧器本体，与张紧器主体重叠的垫片，由此垫圈可以夹在张紧器本体与要被固定的张紧器本体的安装表面之间，以及穿过安装件的螺纹安装螺栓 张紧器主体中的孔，用于将张紧器本体固定到安装表面。 螺栓孔设置在垫圈中，安装螺栓也延伸穿过螺栓孔。 垫圈夹紧螺栓并将固定螺栓，垫圈和张紧器本体彼此固定，并且当垫圈与张紧器体重叠时，将垫圈与张紧器本体保持预定的对齐关系 在张紧器本体安装在安装表面上。
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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：US20080318718A1
公开(公告)日：2008-12-25
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：US20080261737A1
公开(公告)日：2008-10-23
申请号：US11998517
申请日：2007-11-30
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0853 , F16H2007/0859
摘要： A check valve unit in a hydraulic tensioner comprises a check ball, a steel ball guide having an inner wall allowing a limited range of longitudinal movement of the ball but restricting its lateral movement, a steel retainer attached to the high pressure oil chamber side of the ball guide, and a steel ball seat attached to the oil supply side of the ball guide. Bulged portions formed on an outer surface of the ball guide are press-fit into the plunger-accommodating hole of the tensioner.
摘要翻译： 液压张紧器中的单向阀单元包括止回球，具有允许球的纵向运动的有限范围但限制其横向运动的内壁的钢球导向件，附接到所述球的所述高压油室侧的钢保持器 球导向件，以及附着在球导向件的供油侧的钢球座。 形成在球导向件的外表面上的膨胀部分压配合到张紧器的柱塞容纳孔中。
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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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