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公开(公告)号：EP2089944B1
公开(公告)日：2010-12-01
申请号：EP07787409.7
申请日：2007-07-12
申请人： Robert Bosch GmbH
发明人： KAISER, Thomas , RICARDO, Paulo
摘要： The present invention relates to a sparkplug with a central electrode (4) arranged within an insulator (3) and a housing (2), which surrounds at least regions of the insulator (3), characterized in that a conductive planar element (7) is arranged on the insulator (3), and electrical contact is made between said element and the housing (2).
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公开(公告)号：EP1875570A1
公开(公告)日：2008-01-09
申请号：EP06725175.1
申请日：2006-03-20
申请人： ROBERT BOSCH GMBH
发明人： MENKEN, Lars , CZERWINSKI, Klaus , KAISER, Thomas , FLAIG, Alexander , BOEHM, Jochen , RAGER, Jochen
IPC分类号： H01T13/39
CPC分类号： H01T13/39
摘要： The invention relates to an electrode (8, 9) for a spark plug, said electrode being formed from a base material (11) and at least one additive material (12) which is distributed in the base material (11) in a dispersed manner, is incorporated into the base material (11), and is a metal oxide, and characterised by a negative formation enthalpy which is higher than 800 kJ/mol O2. The base material (11) is an Au base material or an Rh base material or pure Au or Rh, and the additive material part (12) amounts to between 5 vol. % and 50 vol. %. Alternatively, Pt base materials or pure Pt are provided as the base material (11), and the additive material part (12) amounts to between 21 vol. % and 50 vol. % for average particle diameters (D50) of the additive material (12) between 5 µm and 20 µm, or the additive material (12) consists of at least one metal oxide from the group of rare-earth metal oxides and/or at least one metal oxide from the group containing Al2O3, Y2O3, Sc2O3, CaO, SrO, BaO, and/or at least one mixed oxide, such as spinel, consisting of at least one alkaline earth metal oxide, a rare-earth metal oxide, Al2O3, Y2O3 and/or Sc2O3, the additive material part (12) amounting to between 5 vol. % and 50 vol. %.
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3.发明公开
公开(公告)号：EP3977584A1
公开(公告)日：2022-04-06
申请号：EP20723106.9
申请日：2020-04-29
申请人： Robert Bosch GmbH
发明人： WEBER, Jochen , SCHNEIDER, Joerg , KOHN, Peter , KAISER, Thomas , ARNOLD, Sabine
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公开(公告)号：EP2050171A1
公开(公告)日：2009-04-22
申请号：EP07787701.7
申请日：2007-07-18
申请人： Robert Bosch GmbH
发明人： KERSTING, Hermann , KAISER, Thomas , SCHOLZ, Dirk
摘要： The present invention relates to a spark plug for an internal combustion engine, comprising an electrical connecting means (8) at a connection-side end (11), an end (10) on the combustion-chamber side and pointing towards a combustion chamber, an insulator (2) and a housing (3) with a thread (4) for attaching the spark plug to an engine component, with a first sealing area (20) and a second sealing area (21) being formed between the insulator (2) and the housing (3), with the first sealing area (20) being arranged closer to the connection-side end (11), and with the second sealing area (21) being arranged closer to the end (10) on the combustion-chamber side, with a tool engagement area (6) being arranged adjacent to an area (L1) of the spark plug which is located between the connection-side end (11) and the first sealing area (20) in order to transmit a torque to the spark plug in order to fit or to move the spark plug.
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公开(公告)号：EP2089944A1
公开(公告)日：2009-08-19
申请号：EP07787409.7
申请日：2007-07-12
申请人： Robert Bosch GmbH
发明人： KAISER, Thomas , RICARDO, Paulo
摘要： The present invention relates to a sparkplug with a central electrode (4) arranged within an insulator (3) and a housing (2), which surrounds at least regions of the insulator (3), characterized in that a conductive planar element (7) is arranged on the insulator (3), and electrical contact is made between said element and the housing (2).
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公开(公告)号：EP2050171B1
公开(公告)日：2012-03-28
申请号：EP07787701.7
申请日：2007-07-18
申请人： Robert Bosch GmbH
发明人： KERSTING, Hermann , KAISER, Thomas , SCHOLZ, Dirk
摘要： The present invention relates to a spark plug for an internal combustion engine, comprising an electrical connecting means (8) at a connection-side end (11), an end (10) on the combustion-chamber side and pointing towards a combustion chamber, an insulator (2) and a housing (3) with a thread (4) for attaching the spark plug to an engine component, with a first sealing area (20) and a second sealing area (21) being formed between the insulator (2) and the housing (3), with the first sealing area (20) being arranged closer to the connection-side end (11), and with the second sealing area (21) being arranged closer to the end (10) on the combustion-chamber side, with a tool engagement area (6) being arranged adjacent to an area (L1) of the spark plug which is located between the connection-side end (11) and the first sealing area (20) in order to transmit a torque to the spark plug in order to fit or to move the spark plug.
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