发明名称 |
METHOD FOR PRETREATING A PIEZOELECTRIC CERAMIC AND METHOD FOR ADJUSTING AN INJECTION VALVE |
摘要 |
<p>In a method for pretreating a piezoelectric ceramic ( 1 ) and a method for adjusting an injection valve ( 7 ), the piezoelectric ceramic ( 1 ) is exposed to environmental conditions, leading to a reduction of polarization and also a reduction of the length of the ceramic ( 1 ). The obtained length exhibits a greater long-term stability due to said adjusting phase. Consequently, the injection valve ( 7 ) can be re-adjusted before use. As a result, renewed adjustment thereof is required only after a long period in service.</p> |
申请公布号 |
EP1470595(B1) |
申请公布日期 |
2005.10.26 |
申请号 |
EP20030706272 |
申请日期 |
2003.01.30 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
VOIGT, ANDREAS;GOLLER, MATTHIAS;KOHN, STEFAN;REISINGER, WOLFGANG;ZUMSTRULL, CLAUS |
分类号 |
F02M47/02;F02M51/06;F02M59/46;F02M63/00;H01L41/257;(IPC1-7):H01L41/24 |
主分类号 |
F02M47/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|