公开(公告)号：US4879056A

公开(公告)日：1989-11-07

申请号：US111938

申请日：1987-10-21

申请人： Frank E. Filisko ,  William F. Armstrong

发明人： Frank E. Filisko ,  William F. Armstrong

IPC分类号： B01J13/00 ,  C10M125/26 ,  C10M171/00 ,  F16D35/00

CPC分类号： C10M171/001 ,  C10M125/26 ,  C10M2201/103 ,  C10N2240/20 ,  C10N2240/201 ,  C10N2240/202 ,  C10N2240/203 ,  C10N2240/204 ,  C10N2240/205

摘要： An improved method of inducing a change in the dynamic torque transmission of an electrorheological fluid in response to an electric field at low current comprising the steps of: (a) selecting a nonconductive liquid phase (e.g. high dielectric hydrocarbon oil); (b) dispersing in the nonconductive liquid phase a particulate phase substantially free of adsorbed water (e.g. zeolite); and (c) subjecting the resulting electrorheological fluid to an electric potential in excess of about one kilovolt at a current density of less than about one-third microamp per square inch. Such a method achieves a rate of increase of dynamic transmission of torque per unit voltage, dM/dV, in excess of about 0.034 ft-lbs.times.10.sup.-3 /kV and a ratio of dynamic transmission of torque at an electric field strength of at least 2.4 kV to the dynamic transmission of torque at zero field strength, M/Mo, of at least about 2.

摘要翻译： 响应于低电流下的电场而引起电流变流体的动态转矩传递变化的改进方法包括以下步骤：（a）选择非导电液相（例如高介电烃油）; （b）在非导电液相中分散基本上不含吸附水（例如沸石）的颗粒状相; 和（c）以小于约三分之一微安/平方英寸的电流密度对所得的电流变流体进行超过约一千伏的电势。 这种方法实现了每单位电压（dM / dV）的动力传递的增加速率超过​​约0.034ft-lbs×10-3 / kV，并且电场强度下的扭矩的动态传递比至少为2.4 kV至零电场强度M / Mo处的扭矩的动态传递至少约为2。