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公开(公告)号：US09333958B2
公开(公告)日：2016-05-10
申请号：US14422704
申请日：2012-08-23
摘要： A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.
摘要翻译： 一种气动制动辅助装置包括一个包括真空室的真空制动辅助单元和一个真空泵。 真空泵包括输入轴，泵送单元和磁流变离合器。 泵送单元包括泵转子和连接到真空室的吸入口。 磁流变离合器包括输入离合器本体，输出离合器本体，闭合离合器液体间隙，永久磁铁元件和气动控制电路。 永磁体在接合位置和脱离位置之间移动。 气动控制电路将永磁体移动到接合位置和脱离位置之间。 气动控制电路包括气动致动室，其包括活塞和被动预紧元件。 气动致动室连接到真空室。 当真空室中存在高压时，活塞将永磁体移动到接合位置。
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公开(公告)号：US20150251644A1
公开(公告)日：2015-09-10
申请号：US14422704
申请日：2012-08-23
摘要： A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.
摘要翻译： 一种气动制动辅助装置包括一个包括真空室的真空制动辅助单元和一个真空泵。 真空泵包括输入轴，泵送单元和磁流变离合器。 泵送单元包括泵转子和连接到真空室的吸入口。 磁流变离合器包括输入离合器本体，输出离合器本体，闭合离合器液体间隙，永久磁铁元件和气动控制电路。 永磁体在接合位置和脱离位置之间移动。 气动控制电路将永磁体移动到接合位置和脱离位置之间。 气动控制电路包括气动致动室，其包括活塞和被动预紧元件。 气动致动室连接到真空室。 当真空室中存在高压时，活塞将永磁体移动到接合位置。
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公开(公告)号：US08960397B2
公开(公告)日：2015-02-24
申请号：US13254147
申请日：2010-03-02
申请人： Jürgen Maas , Dirk Güth , Martin Aust
发明人： Jürgen Maas , Dirk Güth , Martin Aust
CPC分类号： F16D37/02 , F16D2037/002 , F16D2037/004
摘要： A device for transmission and/or generation of torque having a driveshaft and having a driven shaft acted upon by field-excited forces of a magnetorheological medium, the driveshaft terminates in a flange in a housing, at least one cylinder is arranged on the flange (7), and the cylinder extends over the driven shaft coaxially while forming a gap which is filled with the magnetorheological medium.
摘要翻译： 用于传动和/或产生具有驱动轴并具有从动轴的扭矩的装置通过磁流变介质的励磁力作用，所述驱动轴终止于壳体中的凸缘中，至少一个气缸设置在凸缘上 7），并且气缸同轴地在从动轴上延伸，同时形成填充有磁流变介质的间隙。
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公开(公告)号：US08893868B2
公开(公告)日：2014-11-25
申请号：US13032381
申请日：2011-02-22
申请人： Lawrence C. Kennedy
发明人： Lawrence C. Kennedy
CPC分类号： F16D37/02 , F16D2037/002
摘要： A viscous fluid clutch for use as a clutch for a cooling fan for a vehicle, the clutch includes an input shaft, a rotor assembly, a first housing portion, a second housing portion, a coil assembly, and a brush box. The rotor assembly is coupled to the input shaft. The first housing portion is coupled to the second housing portion and the second housing portion is rotatably disposed on the input shaft. The first and second housing portions define a fluid reservoir for receiving the rotor assembly and a viscous fluid, preferably of the magnetorheological type. The coil assembly is coupled to the first housing portion. The brush box is operably coupled to the coil assembly. When the coil assembly is energized by the brush box, a magnetic field is created that acts upon the magnetorheological fluid to vary the torque transfer of the input shaft to the housing and the fan connected thereto.
摘要翻译： 一种用作车辆冷却风扇的离合器的粘性流体离合器，该离合器包括输入轴，转子组件，第一壳体部分，第二壳体部分，线圈组件和刷盒。 转子组件联接到输入轴。 第一壳体部分联接到第二壳体部分，并且第二壳体部分可旋转地设置在输入轴上。 第一和第二壳体部分限定用于接收转子组件和粘性流体的流体储存器，优选为磁流变型。 线圈组件联接到第一壳体部分。 刷盒可操作地联接到线圈组件。 当线圈组件被电刷箱通电时，产生磁场，该磁场作用在磁流变流体上，以改变输入轴对壳体和与其连接的风扇的转矩传递。
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公开(公告)号：US20140326474A1
公开(公告)日：2014-11-06
申请号：US14356515
申请日：2012-10-17
IPC分类号： B25B21/02
CPC分类号： B25B21/02 , F16D5/00 , F16D37/02 , F16D2037/002
摘要： A hand-held power tool has a motor, a tool holder, and a percussion mechanism disposed between the motor and the tool holder in the drive train. The percussion mechanism includes a first shaft and a second shaft. A magnetically conductive ring gear is connected to the first shaft. An inner wall of the ring gear is eccentric to an axis of the second shaft. A magnetically conductive impeller is connected to the second shaft and is arranged to rotate within the ring gear. The impeller is spaced from the ring gear by a first air gap in a first position while being spaced from the ring gear by a second air gap in a second position, the first air gap being smaller than the second one. A magnet array is arranged coaxially to the second shaft. A magnetorheological fluid fills a cavity between the ring gear and the impeller.
摘要翻译： 手持式电动工具具有电动机，工具架和设置在电动机和传动系中的工具架之间的冲击机构。 冲击机构包括第一轴和第二轴。 导磁环齿轮连接到第一轴。 齿圈的内壁偏心于第二轴的轴线。 导磁叶轮连接到第二轴，并被布置成在齿圈内旋转。 叶轮与第一气隙在第一位置处与第一空气间隔开，同时与第二气隙在第二位置处与第二空气间隙隔开，第一气隙小于第二气隙。 磁体阵列与第二轴同轴设置。 磁流变流体填充环形齿轮和叶轮之间的空腔。
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公开(公告)号：US20120048670A1
公开(公告)日：2012-03-01
申请号：US13217507
申请日：2011-08-25
IPC分类号： F16D37/02
CPC分类号： F16D37/02 , F16D2037/002
摘要： A viscous fluid clutch for use as a clutch for a cooling fan for a vehicle, the clutch includes an input shaft, a rotor assembly, a first housing portion, a second housing portion, a coil assembly, and a brush box. The rotor assembly is coupled to the input shaft. The first housing portion is coupled to the second housing portion and the second housing portion is rotatably disposed on the input shaft. The first and second housing portions define a fluid reservoir for receiving the rotor assembly and a viscous fluid, preferably of the magnetorheological type. The coil assembly is coupled to the first housing portion. The brush box is operably coupled to the coil assembly. When the coil assembly is energized by the brush box, a magnetic field is created that acts upon the magnetorheological fluid to vary the torque transfer of the input shaft to the housing and the fan connected thereto.
摘要翻译： 一种用作车辆冷却风扇的离合器的粘性流体离合器，该离合器包括输入轴，转子组件，第一壳体部分，第二壳体部分，线圈组件和刷盒。 转子组件联接到输入轴。 第一壳体部分联接到第二壳体部分，并且第二壳体部分可旋转地设置在输入轴上。 第一和第二壳体部分限定用于接收转子组件和粘性流体的流体储存器，优选为磁流变型。 线圈组件联接到第一壳体部分。 刷盒可操作地联接到线圈组件。 当线圈组件被电刷箱通电时，产生磁场，该磁场作用在磁流变流体上以改变输入轴到外壳和与其连接的风扇的转矩传递。
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公开(公告)号：US08100238B2
公开(公告)日：2012-01-24
申请号：US12218484
申请日：2008-07-15
申请人： Herbert Steinwender
发明人： Herbert Steinwender
IPC分类号： F16D37/02
CPC分类号： F16D37/02 , F16D2037/002 , F16D2037/004
摘要： A magnetorheological clutch includes a primary part, a secondary part and a magnet for the generation of a magnetic field. The primary part and the secondary part are rotatable relative to one another around an axis of rotation of the clutch, with the primary part being rotationally fixedly connected to at least one disk. The disk is surrounded by coupling gaps in which a magnetorheological medium is arranged. The thickness of the at least one disk along the coupling gap has a value of approximately 0.4 mm to approximately 1 mm, with the at least one disk being formed along the coupling gaps without material interruptions.
摘要翻译： 磁流变离合器包括用于产生磁场的主要部分，次要部分和磁体。 主要部分和次要部分可围绕离合器的旋转轴线相对于彼此旋转，其中主要部分旋转地固定地连接到至少一个盘。 磁盘被布置有磁流变介质的耦合间隙包围。 沿着联接间隙的至少一个盘的厚度具有约0.4mm至约1mm的值，其中至少一个盘沿着联接间隙形成，而没有材料中断。
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公开(公告)号：US20110278123A1
公开(公告)日：2011-11-17
申请号：US13052738
申请日：2011-03-21
申请人： Lawrence C. KENNEDY
发明人： Lawrence C. KENNEDY
CPC分类号： F16D37/02 , F16D2037/002
摘要： A viscous fluid clutch for use as a clutch for a cooling fan for a vehicle , the clutch includes an input shaft, a rotor assembly, a first housing portion, a second housing portion, a coil assembly, and a brush box. The rotor assembly is coupled to the input shaft. The first housing portion is coupled to the second housing portion and the second housing portion is rotatably disposed on the input shaft. The first and second housing portions define a fluid reservoir for receiving the rotor assembly and a viscous fluid, preferably of the magnetorheological type. The coil assembly is coupled to the first housing portion. The brush box is operably coupled to the coil assembly. When the coil assembly is energized by the brush box, a magnetic field is created that acts upon the magnetorheological fluid to vary the torque transfer of the input shaft to the housing and the fan connected thereto.
摘要翻译： 一种用作车辆冷却风扇的离合器的粘性流体离合器，该离合器包括输入轴，转子组件，第一壳体部分，第二壳体部分，线圈组件和刷盒。 转子组件联接到输入轴。 第一壳体部分联接到第二壳体部分，并且第二壳体部分可旋转地设置在输入轴上。 第一和第二壳体部分限定用于接收转子组件和粘性流体的流体储存器，优选为磁流变型。 线圈组件联接到第一壳体部分。 刷盒可操作地联接到线圈组件。 当线圈组件被电刷箱通电时，产生磁场，该磁场作用在磁流变流体上以改变输入轴到外壳和与其连接的风扇的转矩传递。
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公开(公告)号：US20110278122A1
公开(公告)日：2011-11-17
申请号：US13032381
申请日：2011-02-22
申请人： Lawrence C. KENNEDY
发明人： Lawrence C. KENNEDY
CPC分类号： F16D37/02 , F16D2037/002
摘要： A viscous fluid clutch for use as a clutch for a cooling fan for a vehicle, the clutch includes an input shaft, a rotor assembly, a first housing portion, a second housing portion, a coil assembly, and a brush box. The rotor assembly is coupled to the input shaft. The first housing portion is coupled to the second housing portion and the second housing portion is rotatably disposed on the input shaft. The first and second housing portions define a fluid reservoir for receiving the rotor assembly and a viscous fluid, preferably of the magnetorheological type. The coil assembly is coupled to the first housing portion. The brush box is operably coupled to the coil assembly. When the coil assembly is energized by the brush box, a magnetic field is created that acts upon the magnetorheological fluid to vary the torque transfer of the input shaft to the housing and the fan connected thereto.
摘要翻译： 一种用作车辆冷却风扇的离合器的粘性流体离合器，该离合器包括输入轴，转子组件，第一壳体部分，第二壳体部分，线圈组件和刷盒。 转子组件联接到输入轴。 第一壳体部分联接到第二壳体部分，并且第二壳体部分可旋转地设置在输入轴上。 第一和第二壳体部分限定用于接收转子组件和粘性流体的流体储存器，优选为磁流变型。 线圈组件联接到第一壳体部分。 刷盒可操作地联接到线圈组件。 当线圈组件被电刷箱通电时，产生磁场，该磁场作用在磁流变流体上，以改变输入轴对壳体和与其连接的风扇的转矩传递。
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公开(公告)号：US20030226731A1
公开(公告)日：2003-12-11
申请号：US10401320
申请日：2003-03-27
发明人： Dale A. Stretch , Wade A. Smith
IPC分类号： F16D037/02
CPC分类号： F16D37/02 , F16D2037/002
摘要： A multiple working surface magnetic particle device for transferring torque between two rotatable members is disclosed. The magnetic particle device includes relatively rotatable members defining a gap therebetween containing a magnetically reactive medium. The magnetically reactive medium stiffens in the presence of a magnetic field interlocking the rotatable members. The multiple working surface design allows for a reduction in the size and weight of the magnetic field source resulting in a more compact, lighter weight magnetic particle device.
摘要翻译： 公开了一种用于在两个可旋转构件之间传递扭矩的多重工作表面磁性颗粒装置。 磁性颗粒装置包括相对旋转的构件，其限定了包含磁反应介质的间隙。 磁性反应介质在存在与可旋转构件互锁的磁场的情况下变硬。 多重工作表面设计允许减小磁场源的尺寸和重量，从而导致更紧凑，重量更轻的磁性颗粒装置。
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