公开(公告)号：US06933661B2

公开(公告)日：2005-08-23

申请号：US10271454

申请日：2002-10-16

申请人： Charles E. Seeley ,  Todd G. Wetzel ,  Andrew J. Calver ,  Jeffrey B. Fortin ,  Keith B. Fosen

发明人： Charles E. Seeley ,  Todd G. Wetzel ,  Andrew J. Calver ,  Jeffrey B. Fortin ,  Keith B. Fosen

IPC分类号： H01L41/053 ,  H02N2/04 ,  H01L41/08

CPC分类号： H01L41/053

摘要： A piezoelectric actuator and a method of assembling and employing a piezoelectric actuator. This method comprises the steps of positioning an expandable piezoelectric material inside a case, and enclosing a vaporizable liquid in the case. The case is positioned in a high temperature environment; and the liquid vaporizes, in that high temperature environment, over a given period of time, to maintain the temperature of the piezoelectric material below a given value for said period of time. Preferably, the vaporizing liquid maintains the temperature of the piezoelectric material substantially constant over that period of time. Also, preferably the case is provided with a pressure responsive valve that opens and closes, in the high temperature environment, to expose the liquid to that environment and control the vaporization of the liquid to maintain the temperature of the piezoelectric material substantially constant over the period of time.

摘要翻译： 压电致动器以及组装和使用压电致动器的方法。 该方法包括将可膨胀压电材料定位在壳体内并将壳体中的可汽化液体包围的步骤。 该案件位于高温环境中; 并且在该高温环境中，液体在给定的时间内蒸发，以将压电材料的温度保持在给定值以下一段时间。 优选地，汽化液体在该时间段内保持压电材料的温度基本上恒定。 此外，优选地，在高温环境中优选地设置有打开和关闭的压力响应阀，以将液体暴露于该环境并且控制液体的蒸发以在压缩材料的温度保持基本上恒定的期间 的时间。