公开(公告)号：US06710305B2

公开(公告)日：2004-03-23

申请号：US10169170

申请日：2002-10-17

申请人： Gert Lindemann ,  Wilfried Aichele ,  Andreas Reissner ,  Friedericke Lindner ,  Christof Rau ,  Guenter Knoll

发明人： Gert Lindemann ,  Wilfried Aichele ,  Andreas Reissner ,  Friedericke Lindner ,  Christof Rau ,  Guenter Knoll

IPC分类号： F23Q722

CPC分类号： F23Q7/001

摘要： A sheath heater in a sheathed-type glow plug for diesel engines is described, having at least one generally internal insulation layer and at least one generally external conductive layer, both layers making up a ceramic composite structure. The sheath heater has a generally uniform overall cross-section, generally over its entire length, and, in the area of a tip of the sheath heater, the proportion of the insulation layer in the overall cross-section increases, whereas the proportion of the conductive layer in the overall cross-section decreases.

摘要翻译： 描述了用于柴油发动机的护套式电热塞中的护套加热器，其具有至少一个大体上内部的绝缘层和至少一个大体上的外部导电层，两个层构成陶瓷复合结构。 护套加热器通常在其整个长度上具有大致均匀的整个横截面，并且在护套加热器的尖端区域中，绝缘层在整个横截面中的比例增加，而 整个横截面的导电层减小。