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公开(公告)号：US09797465B2
公开(公告)日：2017-10-24
申请号：US14442483
申请日：2014-03-10
发明人： Keiji Saito , Kazuhisa Nakamura , Takashi Teraoka
CPC分类号： F16F9/3214 , F16F9/19 , F16F9/535 , F16F2222/06 , F16F2224/045 , F16F2228/066
摘要： A piston of a magnetorheological fluid shock absorber is provided with a piston core having a small diameter portion mounted on an end portion of the piston rod, an enlarged diameter portion formed continuously in an axial direction with a diameter larger than the small diameter portion and forming a stepped portion, and a large diameter portion formed continuously in the axial direction with a diameter larger than the enlarged diameter portion and having a coil; a ring body surrounding the outer periphery of the piston core and forming a flow passage of the magnetorheological fluid between itself and the large diameter portion; a plate formed annularly and arranged on the outer periphery of the small diameter portion and mounted on one end of the ring body; and a stopper mounted on the small diameter portion and sandwiching the plate between the stopper and the stepped portion.
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公开(公告)号：US09441702B2
公开(公告)日：2016-09-13
申请号：US14406537
申请日：2013-07-23
发明人： Keiji Saito , Kazuhisa Nakamura
IPC分类号： F16F9/53
CPC分类号： F16F9/535
摘要： A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid includes a cylinder in which magnetorheological fluid is sealed, a piston which is slidably arranged in the cylinder, a first fluid chamber and a second fluid chamber which are partitioned by the piston, a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers, an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage, a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage, and a bypass branching portion which branches the bypass flow passage from the main flow passage.
摘要翻译： 一种使用磁流变流体的磁流变流体阻尼器，其粘度根据磁场的强度而变化，因为工作流体包括其中密封磁流变流体的气缸，可滑动地布置在气缸中的活塞，第一流体室和第二流体室 流体室，其由活塞分隔;主流路，其在活塞的相对端面上敞开，并且允许第一和第二流体室之间的连通;电磁线圈，其产生施加到磁流变流体流动的磁化场; 在主流路中形成有旁路流路，该旁通流路形成在比由主流路而由电磁线圈产生的磁化场较小的位置，以及从主流路分支旁路流路的旁路分支部。
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公开(公告)号：US09217486B2
公开(公告)日：2015-12-22
申请号：US14379173
申请日：2013-02-18
发明人： Keiji Saito , Kazuhisa Nakamura , Takashi Teraoka
摘要： A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a first plate which is arranged on the outer periphery of the piston rod and specifies the position of one end of the flux ring in an axial direction with respect to the piston core, a second plate which is arranged on the inner periphery of the other end of the flux ring, and a first snap ring which is fitted to the inner periphery of the flux ring and fixes the second plate.
摘要翻译： 磁流变液体缓冲器包括可滑动地布置在其中密封磁流变流体的气缸中的活塞。 活塞包括附接到活塞杆的端部并且在其外周上设置有线圈的活塞芯，包围活塞芯的外周并形成用于磁流变流体的流动通道的磁通环 在所述活塞芯和所述磁通环之间设置有第一板，所述第一板布置在所述活塞杆的外周上并指定所述磁通环的一端相对于所述活塞芯在轴向方向上的位置;第二板， 布置在磁通环的另一端的内周上，以及第一卡环，其配合到磁通环的内周并固定第二板。
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公开(公告)号：US20150021130A1
公开(公告)日：2015-01-22
申请号：US14379173
申请日：2013-02-18
发明人： Keiji Saito , Kazuhisa Nakamura , Takashi Teraoka
摘要： A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a first plate which is arranged on the outer periphery of the piston rod and specifies the position of one end of the flux ring in an axial direction with respect to the piston core, a second plate which is arranged on the inner periphery of the other end of the flux ring, and a first snap ring which is fitted to the inner periphery of the flux ring and fixes the second plate.
摘要翻译： 磁流变液体缓冲器包括可滑动地布置在其中密封磁流变流体的气缸中的活塞。 活塞包括附接到活塞杆的端部并且在其外周上设置有线圈的活塞芯，包围活塞芯的外周并形成用于磁流变流体的流动通道的磁通环 在所述活塞芯和所述磁通环之间设置有第一板，所述第一板布置在所述活塞杆的外周上并指定所述磁通环的一端相对于所述活塞芯在轴向方向上的位置;第二板， 布置在磁通环的另一端的内周上，以及第一卡环，其配合到磁通环的内周并固定第二板。
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公开(公告)号：US20150129378A1
公开(公告)日：2015-05-14
申请号：US14406537
申请日：2013-07-23
发明人： Keiji Saito , Kazuhisa Nakamura
IPC分类号： F16F9/53
CPC分类号： F16F9/535
摘要： A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid includes a cylinder in which magnetorheological fluid is sealed, a piston which is slidably arranged in the cylinder, a first fluid chamber and a second fluid chamber which are partitioned by the piston, a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers, an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage, a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage, and a bypass branching portion which branches the bypass flow passage from the main flow passage.
摘要翻译： 一种使用磁流变流体的磁流变流体阻尼器，其粘度根据磁场的强度而变化，因为工作流体包括其中密封磁流变流体的气缸，可滑动地布置在气缸中的活塞，第一流体室和第二流体室 流体室，其由活塞分隔;主流路，其在活塞的相对端面上敞开，并且允许第一和第二流体室之间的连通;电磁线圈，其产生施加到磁流变流体流动的磁化场; 在主流路中形成有旁路流路，该旁通流路形成在比由主流路而由电磁线圈产生的磁化场较小的位置，以及从主流路分支旁路流路的旁路分支部。
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公开(公告)号：US20150008081A1
公开(公告)日：2015-01-08
申请号：US14380185
申请日：2013-02-18
发明人： Keiji Saito , Kazuhisa Nakamura , Takashi Teraoka
CPC分类号： F16F9/535 , F16F9/3214
摘要： A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid whose viscosity changes by the action of a magnetic field is sealed. The piston includes a piston core which is attached to an end part of the piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a plate which is annularly formed, arranged on the outer periphery of the piston rod and attached to one end of the flux ring, and a stopper whose axial position is specified with respect to the piston rod and which sandwiches the plate between the piston core and the stopper.
摘要翻译： 磁流变液体缓冲器包括可滑动地布置在气缸中的活塞，其中通过磁场的作用粘度改变的磁流变流体被密封。 活塞包括附接到活塞杆的端部并且在其外周上设置有线圈的活塞芯，围绕活塞芯的外周并形成用于磁流变流体的流动通道的磁通环 在活塞芯和磁通环之间，形成有环状地设置在活塞杆的外周并且附接到磁通环的一端的板，以及相对于活塞杆规定的轴向位置的止动件， 其将板夹在活塞芯和止动器之间。
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