公开(公告)号：US06394252B1

公开(公告)日：2002-05-28

申请号：US09691844

申请日：2000-10-18

申请人： Zdenek Cerny ,  Ryszard Ostrowski ,  Peter Depikolozvane ,  Norman Cerny

发明人： Zdenek Cerny ,  Ryszard Ostrowski ,  Peter Depikolozvane ,  Norman Cerny

IPC分类号： F16D27112

CPC分类号： F16D27/112 ,  F16D27/14 ,  Y10T29/4902

摘要： An electromagnetically actuated power transmitting assembly has a cup shaped pulley structure mounted for rotation about the input shaft of a power driven device. The pulley structure has an outer annular driven portion for engaging an endless flexible driving element such that engine driven movement of the driving element rotates the pulley structure. The outer annular portion has ferromagnetic material along at least an internal diametrical periphery thereof to allow magnetic flux to flow therethrough. A one-piece flux carrier/mounting structure is formed from ferromagnetic material and has a mounting portion fixedly mounted to the power driven device and an annular flux carrier portion nested within the cup shaped pulley structure to allow the pulley structure to rotate relative to the flux carrier and to allow magnetic flux to flow therebetween. An annular magnetic coil for inducing a field of magnetic flux is fixedly mounted in the carrier portion. A selectively movable clutch has a magnetically attractable disc portion and a biasing member biasing the disc portion to a disengaged position. The clutch is mounted such that energizing the coil induces a magnetic flux which overcomes the bias and selectively moves the disc portion from the disengaged position to an engaged position wherein the clutch couples the pulley structure and the input shaft for rotation. De-energizing the coil enables the biasing member to move the disc portion to the disengaged position de-coupling the pulley structure the input shaft to allow the pulley structure to rotate relative thereto.

摘要翻译： 电磁致动的动力传递组件具有安装成围绕动力驱动装置的输入轴旋转的杯形滑轮结构。 滑轮结构具有用于接合环形柔性驱动元件的外环形驱动部分，使得驱动元件的发动机驱动运动使滑轮结构旋转。 外环形部分沿着至少其内直径周边具有铁磁材料，以允许磁通流过其中。 一体式磁通载体/安装结构由铁磁材料形成，并且具有固定地安装到动力驱动装置的安装部分和嵌套在杯形滑轮结构内的环形磁体载体部分，以允许滑轮结构相对于磁通 并且允许磁通在其间流动。 用于感应磁通场的环形磁线圈固定地安装在载体部分中。 可选择性地移动的离合器具有磁性可吸引的盘部分和将盘部分偏压到脱离位置的偏置构件。 离合器被安装成使得线圈通电引起磁通量，其克服偏压并且选择性地将盘部分从分离位置移动到接合位置，其中离合器耦合滑轮结构和输入轴以进行旋转。 断开线圈使得偏置构件能够将盘部分移动到脱离位置，使滑轮结构与输入轴解耦，以允许滑轮结构相对于其旋转。