发明名称 |
Actuator for a fuel injector of an internal combustion engine |
摘要 |
In order to increase the lifetime for a piezoactuator of a fuel injector and to make possible a reliable seal of the piezoactor especially for comparatively thin head plates as well a gas exchange passage running through an actuator housing ( 52, 54 ) is provided, where a sealing unit ( 2 ) placed on the head arrangement ( 16, 18 ) is provided for sealing the piezoactor ( 12 ) which features a carrier ( 28 ) on which a sealing material ( 30 ) is arranged which forms a seal around the piezo contact pins ( 14 ) and the head arrangement ( 16, 18 ) and on which a microporous gas exchanger ( 26 ) to create gas permeability of the sealing unit ( 24 ) is integrated such that any fluid which has penetrated through to the gas exchanger ( 26 ) can flow out of the gas exchanger ( 26 ) under the force of gravity.
|
申请公布号 |
US2006038030(A1) |
申请公布日期 |
2006.02.23 |
申请号 |
US20040961293 |
申请日期 |
2004.10.08 |
申请人 |
PLECHER KLAUS;UNRUH MARCUS |
发明人 |
PLECHER KLAUS;UNRUH MARCUS |
分类号 |
F02M47/02;B05B1/08;B05B3/04;F02M63/00 |
主分类号 |
F02M47/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|