发明申请
US20070113536A1 Piezo actuator comprising means for compensating thermal length modifications and fuel injection valve comprising a piezo actuator
失效
压电致动器包括用于补偿热长度修改的装置和包括压电致动器的燃料喷射阀
- 专利标题： Piezo actuator comprising means for compensating thermal length modifications and fuel injection valve comprising a piezo actuator
- 专利标题（中）： 压电致动器包括用于补偿热长度修改的装置和包括压电致动器的燃料喷射阀
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申请号： US10597102申请日： 2005-01-11
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公开(公告)号： US20070113536A1公开(公告)日： 2007-05-24
- 发明人: Jurgen Dick , Heinz Lixl , Martin Simmet
- 申请人： Jurgen Dick , Heinz Lixl , Martin Simmet
- 优先权： DE102004001679.8 20040112
- 国际申请： PCT/EP05/50092 WO 20050111
- 主分类号： C06B43/00
- IPC分类号： C06B43/00
摘要：
In an actuator unit, the piezo actuator (1) is located inside a tubular spring (3) under pre-stress. To compensate the thermal length modifications of the piezo actuator (1) in relation to the actuator housing (4, 3, 6, 5), the compensation element is configured as an aluminium compensation cylinder (2) that is situated in an extension tube (6). The piezo actuator (1) and the compensation cylinder (2) are mounted in series and conjointly pre-stressed by means of the tubular spring (3) that is extended in relation to the actuator housing by the extension tube (6).
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