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1. 发明公开

EP2417643A1 PIEZOELEKTRISCHER AKTOR UND VERFAHREN ZUR HERSTELLUNG EINES PIEZOELEKTRISCHEN AKTORS 有权
标题翻译：压电作动器及其制造方法压电致动器
公开(公告)号：EP2417643A1
公开(公告)日：2012-02-15
申请号：EP10712366.3
申请日：2010-02-17
申请人： Robert Bosch GmbH
发明人： GRIESSL, Anja , ESCHENBACHER, Cosima , LINDNER, Friederike , HEJTMANN, Georg , HENNECK, Stefan , GUENTHER, Michael , SPREMO, Ivan
IPC分类号： H01L41/083 , H01L41/047 , H01L41/24
CPC分类号： H01L41/0471 , H01L41/0472 , H01L41/277 , H01L41/293 , H01L41/297
摘要： The invention relates to a piezoelectric actuator (2), particularly for fuel injection valves, having an actuator body (15). The actuator body (15) comprises a plurality of ceramic layers (16 to 22), and a plurality of electrode layers (23 to 28) arranged between the ceramic layers (16 to 22). A first ceramic layer (17) is formed by a first pre-sintered ceramic disk (41). Furthermore, a second ceramic layer (18) is formed by a second pre-sintered ceramic disk (41 "). The ceramic layer (17) formed by the first ceramic disk (41), and the ceramic layer (18) formed by the second ceramic disk (41 ") are interconnected by an electrode layer (24) provided between the ceramic layers (17, 18), wherein said electrode layer (24) is made of a metal paste (45).

2. 发明授权

EP2417346B1 PIEZOELEKTRISCHER AKTOR UND BRENNSTOFFEINSPRITZVENTIL 有权
公开(公告)号：EP2417346B1
公开(公告)日：2018-11-21
申请号：EP10704816.7
申请日：2010-02-17
申请人： Robert Bosch GmbH
发明人： ESCHENBACHER, Cosima , MEYER, Andre , SPREMO, Ivan
IPC分类号： F02M51/00 , F02M51/06 , F02M59/46 , F02M63/00 , H01L41/047 , H01L41/083
CPC分类号： F02M51/005 , F02M51/0603 , F02M63/0026 , F02M2200/24 , H01L41/0471 , H01L41/0472 , H01L41/0825 , H01L41/0833

3. 发明授权

EP2384259B1 HANDGEHALTENE ELEKTROWERKZEUGMASCHINE 有权
标题翻译：手持式电动工具机
公开(公告)号：EP2384259B1
公开(公告)日：2013-06-26
申请号：EP09795760.9
申请日：2009-12-17
申请人： Robert Bosch GmbH
发明人： ROSER, Jochen , DELFINI, Stefano , KOEDER, Thilo , PLATZER, Joachim , SPREMO, Ivan
IPC分类号： B24B1/04
CPC分类号： B24B1/04 , B24B23/00

4. 发明公开

EP2384259A1 HANDGEHALTENE ELEKTROWERKZEUGMASCHINE 有权
标题翻译：手持式电动工具机
公开(公告)号：EP2384259A1
公开(公告)日：2011-11-09
申请号：EP09795760.9
申请日：2009-12-17
申请人： Robert Bosch GmbH
发明人： ROSER, Jochen , DELFINI, Stefano , KOEDER, Thilo , PLATZER, Joachim , SPREMO, Ivan
IPC分类号： B24B1/04
CPC分类号： B24B1/04 , B24B23/00
摘要： The invention relates to a handheld electric machine tool (10) comprising - a housing (20) having a grip area (40), - a tool area (50) for a tool (60) that can be driven in a linear and/or oscillating manner, - an operating element (30) on the housing side for activation of the tool (60) and/or the electric machine tool (10) by the user, - a drive unit (80) arranged in the housing (20) for producing a working movement of the tool (60), - an electronic unit (200) arranged in the housing (20) for sending at least control and/or regulation signals to the drive unit (80), - an operating voltage unit (90) for providing an electrical DC voltage, wherein the drive unit (80) comprises at least one excitation actuator (100) having a volume of excitation-active material, which - is supplied electrically by the operating voltage unit (90) during operation, - is controlled or regulated by the electronic unit (200). It is proposed to design the electronic unit (200) to operate the at least one excitation actuator (100) at a resonance frequency (f_res).

5. 发明授权

EP2417643B1 PIEZOELEKTRISCHER AKTOR UND VERFAHREN ZUR HERSTELLUNG EINES PIEZOELEKTRISCHEN AKTORS 有权
标题翻译：压电作动器及其制造方法压电致动器
公开(公告)号：EP2417643B1
公开(公告)日：2014-11-19
申请号：EP10712366.3
申请日：2010-02-17
申请人： Robert Bosch GmbH
发明人： GRIESSL, Anja , ESCHENBACHER, Cosima , LINDNER, Friederike , HEJTMANN, Georg , HENNECK, Stefan , GUENTHER, Michael , SPREMO, Ivan
IPC分类号： H01L41/083 , H01L41/047 , H01L41/277
CPC分类号： H01L41/0471 , H01L41/0472 , H01L41/277 , H01L41/293 , H01L41/297

6. 发明公开

EP2417346A1 PIEZOELEKTRISCHER AKTOR UND BRENNSTOFFEINSPRITZVENTIL 审中-公开
标题翻译：压电致动器的燃料喷射阀
公开(公告)号：EP2417346A1
公开(公告)日：2012-02-15
申请号：EP10704816.7
申请日：2010-02-17
申请人： Robert Bosch GmbH
发明人： ESCHENBACHER, Cosima , MEYER, Andre , SPREMO, Ivan
IPC分类号： F02M51/00 , F02M51/06 , F02M59/46 , F02M63/00 , H01L41/047 , H01L41/083
CPC分类号： F02M51/005 , F02M51/0603 , F02M63/0026 , F02M2200/24 , H01L41/0471 , H01L41/0472 , H01L41/0825 , H01L41/0833
摘要： A piezoelectric actuator (2) which is used, in particular, as an actuator for fuel injection valves (1) has an actuator body (12) having a plurality of piezoelectric layers (17, 18) and a plurality of electrically conductive layers (19 to 22) arranged between the piezoelectric layers (17, 18). Sensor layers (19, 20) are formed by electrically conductive layers (19, 20) in a sensor region (23). Furthermore, electrically conductive layers (21, 22) which are provided in an active region (24) are in the form of electrode layers (21, 22). In the actuator body (12), the electrically conductive layers (21, 22) alternately extend to a first side (31) and to a second side (32) of the actuator body (12), wherein, at said sides (31, 32) the layers are alternately electrically connected to a first electrode connection (33) provided on the first side (31) and to a second electrode connection (34) provided on the second side (32). The first electrode connection (33) has a recess (39) in the region of the sensor layer (19). The sensor layer (19) is contacted by means of a sensor connection (37) which is arranged in the recess (39) in the first electrode connection (33) on the first side (31) of the actuator body (12). In a corresponding manner, the second electrode connection (34) has a recess (47) in the region of the sensor layer (20), wherein the sensor layer (20) is contacted by means of a sensor connection (45) which is arranged in the recess (47) in the second electrode connection (34) on the second side (32) of the actuator body (12). It is thus possible to contact the electrically conductive layers (19 to 22) in an advantageous manner.

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