公开(公告)号：US07410042B2

公开(公告)日：2008-08-12

申请号：US11449109

申请日：2006-06-08

申请人： David C. Ochab ,  Brendan Brewer ,  Matthew J. Cowen ,  Kelly P. Heath ,  John M. Hasson, Jr.

发明人： David C. Ochab ,  Brendan Brewer ,  Matthew J. Cowen ,  Kelly P. Heath ,  John M. Hasson, Jr.

IPC分类号： F16H48/12 ,  F16D47/04

CPC分类号： F04B1/0404 ,  F04B9/02 ,  F04B49/06 ,  F04B53/00 ,  F04B2201/1241 ,  F16D25/08 ,  F16D27/112 ,  F16D28/00 ,  F16D41/088 ,  F16D43/284 ,  F16H48/12 ,  F16H48/16 ,  F16H48/18 ,  F16H48/19 ,  F16H48/22 ,  F16H48/30 ,  F16H48/32 ,  F16H48/34 ,  F16H2048/204 ,  F16H2048/346 ,  F16H2048/426 ,  F16H2200/2071 ,  Y10T74/19005

摘要： A pump includes a cam member and an armature plate received on an input shaft rotatably supported with a differential housing of a clutch. The pump also includes a cylinder rod slidingly received in a chamber of a master cylinder to pressurize a hydraulic fluid. The cam member includes a ring and a back plate. The ring has an outer, preferably symmetrical, surface with a variable radius defining a ramped portion for outwardly driving the cylinder rod when the cam member is rotated either forward or backward with respect to the differential housing. A coil generates an electromagnetic field when activated drawing the cam member towards the armature plate such that contact forces causes the cam member to rotate with the armature plate. A roller disc is rotatably supported at one end of the cylinder rod for rolling contact between the cylinder rod and the cam surface of the cam member ring.

摘要翻译： 泵包括凸轮构件和容纳在可旋转地支撑在离合器的差速器壳体上的输入轴上的衔铁板。 泵还包括滑动地容纳在主缸的腔室中以对液压流体加压的气缸杆。 凸轮构件包括环和背板。 环具有外部，优选对称的表面，其具有可变的半径，其限定了斜面部分，用于当凸轮构件相对于差速器壳体向前或向后旋转时向外驱动气缸杆。 当线圈激活时，线圈产生电磁场，朝向衔铁板拉动凸轮构件，使得接触力使凸轮构件与衔铁板一起旋转。 辊盘可旋转地支撑在气缸杆的一端，用于在气缸杆和凸轮构件环的凸轮表面之间进行滚动接触。