公开(公告)号：WO0167571A2

公开(公告)日：2001-09-13

申请号：PCT/DE0100286

申请日：2001-01-25

Applicant: BOSCH GMBH ROBERT ,  KLETT DITTMAR ,  ULM HEINZ ,  SCHMITTINGER SIMON ,  TRACHTE DIETRICH ,  FISCHER JOCHEN

Inventor： KLETT DITTMAR ,  ULM HEINZ ,  SCHMITTINGER SIMON ,  TRACHTE DIETRICH ,  FISCHER JOCHEN

IPC: H01T13/20 ,  H01T13/39 ,  H01T21/02

CPC classification number: H01T13/39 ,  H01T21/02

Abstract: A spark plug for an internal combustion engine is disclosed, with a middle electrode, comprising an electrode base body (5), with a front face (51), facing towards the combustion chamber, to which a noble metal tip (8) is attached. A combustion chamber facing end section of the electrode base body (15) is in the form of a frustum. The noble metal tip (8) is also in the form of a frustum, whereby the diameter of the front face of the electrode base body (51), facing towards the combustion chamber, corresponds to the diameter of the front face of the noble metal tip (84), facing away from the combustion chamber. Furthermore, a method for the production of a middle electrode for a spark plug in an internal combustion engine is disclosed, whereby a noble metal tip (8) is fixed to an electrode base body (51), with the front face of the electrode base body (51), facing the combustion chamber, connected to the front face of the noble metal tip (84), facing away from the combustion chamber. Finally, the noble metal tip (8) and the combustion chamber end of the electrode base body (5) are machined into a cone in such a way that an external section (11), in the boundary region between the noble metal tip (8) and electrode base body (5) is removed, which, in terms of the microstructure and/or composition thereof, differs from that of an internal section (12) of the boundary region.

Abstract translation: 它包括一个火花塞用于具有具有主电极体（5）与在其上，提出了一种贵金属芯片（8）被附接，燃烧室端面朝向（51）的中心电极的内燃机。 电极基体（15）的燃烧室侧的端部是截头圆锥形。 贵金属芯片（8）也是截头圆锥形，其中所述电极基体（51）的朝向燃烧腔室的端面的直径从所述贵金属电极头（84）的端面对应于燃烧室的直径远程。 它进一步是制造中心电极为提出了一种内燃机的火花塞的方法，其中，在电极基体（5）的贵金属芯片（8）固定，其特征在于，所述电极的基体（51）与所述Edelmettallplättchens的brennraumabgewanten端面（84）的燃烧室侧的端面上连接 ， 接着，贵金属电极头（8）和电极基体（15）的燃烧室侧的端部在被加工成锥形加工成使得在过渡区域中的贵金属芯片（8）和电极基体（5）之间的外部分（11）被去除，在其微观结构和/ 或从该过渡区域的内部部分（12）的组合物不同。

公开(公告)号：WO1996007226A1

公开(公告)日：1996-03-07

申请号：PCT/DE1995001072

申请日：1995-08-16

Applicant: ROBERT BOSCH GMBH ,  BENEDIKT, Walter ,  HERDE, Hans-Dieter ,  VOGEL, Manfred ,  KLETT, Dittmar ,  HERDEN, Werner ,  POLLNER, Rudolf ,  TRACHTE, Dietrich ,  ADAMCZUK, Richard ,  NIEGEL, Andreas ,  MUELLER, Bernd ,  MUELLER, Roland

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/39

CPC classification number: H01T13/39

Abstract: The proposal is for harder-wearing spark plugs for an internal combustion engine. One feature concerns the burn-off resistor (13) of the plug which projects toward the spark path (20) of the plug in order that the current from the charge stored in the ignition capacitor is given off in a limited manner. A further modification relates to the diameter of the inner conductor (11, 16) which is reduced, thus making it possible to reduce the capacitance of the plug. A further modification concerns the electrode head (14) of the inner conductor (11, 16), where it is proposed to coat the electrode head (14) with a noble metal and to use a highly heat-conductive material for the electrode head (14) which acts as a heat buffer.

Abstract translation: 有提出了一个内燃发动机的火花塞，这是在其磨损方面的改善。 一个度量涉及的火花塞中，这是优选在的火花塞的火花间隙（20）的方向，以便能够提供该存储在火花塞电容电流受限充电的烧尽电阻器（13）。 另一种修饰涉及到内导体（11，16）的直径。 这被减小，从而火花塞的能力已经降低。 另一个变化涉及的内导体（11，16）的电极头（14）。 这里提出以涂覆具有贵金属层的电极头（14），并提供一个高导热材料作为电极头（14），其用作热缓冲器。

公开(公告)号：WO1995008207A1

公开(公告)日：1995-03-23

申请号：PCT/DE1994000982

申请日：1994-08-25

Applicant: ROBERT BOSCH GMBH ,  BENEDIKT, Walter ,  VOGEL, Manfred ,  KLETT, Dittmar ,  HERDEN, Werner

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/52

CPC classification number: H01T13/52

Abstract: A sparking plug (10), e.g. for an internal combustion engine, with at least one central electrode (11) (h.v. electrode) and at least one earth electrode (12), with an insulator (13) and a surface discharge section (14) between the central (11) and earth (12) electrodes is proposed. The surface discharge section (14) has island patterns of mutually insulated, electrically conductive materials (16) located on the surface region of the insulator (13) or on the surface region of an insulating material (17) of the sparking plug (10).

Abstract translation: 一种火花塞（10），例如用于内燃机，具有至少一个中心电极（11）（高压电极）和至少一个接地电极（12），具有绝缘火花塞绝缘体（13）和具有中心电极（11）之间的面放电路径（14）和接地电极 （12）被呈现。 表面放电间隙（14）具有相互绝缘的，导电性材料（16），其在火花塞绝缘体（13）或上的绝缘材料（17）的表面区域的表面区是所述火花塞（10）的岛状图案。

公开(公告)号：WO1994011934A1

公开(公告)日：1994-05-26

申请号：PCT/DE1993001072

申请日：1993-11-10

Applicant: ROBERT BOSCH GMBH ,  BENEDIKT, Walter ,  SCHAEFER, Hans ,  KLETT, Dittmar ,  JAEHNIG, Gregor

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/39

CPC classification number: H01T13/39

Abstract: Spark plugs, suitable in particular for internal combustion engines, are disclosed. The object of the invention is the attachment of highly erosion resistant spark insets (20/1) in at least one of the electrodes (20) that form the sparking distance. Such spark insets (20/1) are pin-shaped and are inserted with a longitudinal section (20/1') provided with raised parts (24) and/or depressions (25) into a frontal hole (23) of the electrode. In order to reliably secure these spark insets (20/1), the end section of the electrode (20) around the hole (23) is partially or totally deformed (by upsetting) in the radial direction. Ring-shaped grooves (20/1'), threads and axial and circumferential knurls may be provided to form said raised parts (24) or depressions (25). This reliable and economic manner of attaching spark plugs (20/1) to electrodes (20) requires no application of heat.

公开(公告)号：WO2008080696A1

公开(公告)日：2008-07-10

申请号：PCT/EP2007/062442

申请日：2007-11-16

Applicant: ROBERT BOSCH GMBH ,  KOMORI, Teruo ,  BADER, Ingo ,  REINSCH, Bernd ,  LOLAS, Georgios ,  KLETT, Dittmar ,  SAFFE, Christoph ,  THUENER, Lars

Inventor： KOMORI, Teruo ,  BADER, Ingo ,  REINSCH, Bernd ,  LOLAS, Georgios ,  KLETT, Dittmar ,  SAFFE, Christoph ,  THUENER, Lars

IPC: F01N3/023 ,  F01N3/28 ,  B01J35/00

CPC classification number: F01N3/2803 ,  B01D46/2418 ,  B01D2279/30 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/023 ,  F01N2250/02

Abstract: Es wird ein Filterelement für eine Brennkraftmaschine vorgeschlagen, bei dem die Filterwände mit einer katalytisch aktiven Beschichtung mindestens teilweise versehen werden. Dabei ist vorgesehen, dass die radial äußeren Bereiche (38) beziehungsweise die im Bereich der Erste Stirnfläche befindlichen Bereiche des Filterelements (44) eine gegenüber dem inneren Bereich (40) und/oder dem zweiten Bereich (46) des Filterelements (18) eine erhöhte katalytische Aktivität aufweisen.

Abstract translation: 它提出了一种过滤器元件，用于内燃发动机，其中，所述过滤器壁至少部分地设置有一个具有催化活性的涂层。 它提供的是，径向外部分（38）和位于所述第一端面上的区域相对于所述过滤器元件（18）的内部分（40）和/或所述第二区域（46）的过滤器元件（44）的面积增大的 具有催化活性。

公开(公告)号：WO2001067571A3

公开(公告)日：2001-09-13

申请号：PCT/DE2001/000286

申请日：2001-01-25

Applicant: ROBERT BOSCH GMBH ,  KLETT, Dittmar ,  ULM, Heinz ,  SCHMITTINGER, Simon ,  TRACHTE, Dietrich ,  FISCHER, Jochen

Inventor： KLETT, Dittmar ,  ULM, Heinz ,  SCHMITTINGER, Simon ,  TRACHTE, Dietrich ,  FISCHER, Jochen

IPC: H01T13/39

Abstract: Es wird eine Zündkerze für eine Brennkraftmaschine mit einer Mittelelektrode, die einen Elektrodengrundkörper (5) mit einer brennraumzugewandten Stirnfläche (51) aufweist, auf der ein Edelmetallplättchen (8) befestigt ist, vorgeschlagen. Ein brennraumseitiger Endabschnitt des Elektrodengrundkörpers (15) ist dabei kegelstumpfförmig ausgebildet. Das Edelmetallplättchen (8) ist ebenfalls kegelstumpfförmig ausgebildet, wobei der Durchmesser der brennraumzugewandten Stirnfläche des Elektrodengrundkörpers (51) dem Durchmesser der brennraumabgewandten Stirnfläche des Edelmetallplättchens (84) entspricht. Es wird weiterhin ein Verfahren zur Herstellung Mittelelektrode für eine Zündkerze einer Brennkraftmaschine vorgeschlagen, wobei auf einem Elektrodengrundkörper (5) ein Edelmetallplättchen (8) befestigt wird, wobei die brennraumseitige Stirnseite des Elektrodengrundkörpers (51) mit der brennraumabgewanten Stirnseite des Edelmettallplättchens (84) verbunden wird. Anschliessend wird das Edelmetallplättchen (8) und das brennraumseitige Ende des Elektrodengrundkörpers (15) derart konisch spanend bearbeitet, dass ein äusserer Abschnitt (11) im Übergangsbereich zwischen Edelmetallplättchen (8) und Elektrodengrundkörper (5) entfernt wird, der sich in seiner Mikrostruktur und/oder Zusammensetzung von der eines inneren Abschnitts (12) des Übergangsbereichs unterscheidet.

公开(公告)号：WO1997049153A1

公开(公告)日：1997-12-24

申请号：PCT/DE1997001025

申请日：1997-05-22

Applicant: ROBERT BOSCH GMBH ,  MUELLER, Roland ,  ADAMCZUK, Richard ,  HERDEN, Werner ,  VOGEL, Manfred ,  BENEDIKT, Walter ,  NIEGEL, Andreas ,  HERDE, Hans-Dieter ,  POLLNER, Rudolf ,  TRACHTE, Dietrich ,  MUELLER, Bernd ,  KLETT, Dittmar

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/39

CPC classification number: H01T13/39 ,  H01T13/40

Abstract: A spark plug has a tubular metallic housing, an insulator retained by the housing and an inner conductor arrangement embedded in the insulator and consisting of a connection bolt, an erosion resistance, a contact pin and a platinum central electrode. Four earth electrodes are secured to the housing, are bent towards the central electrode and project with their thickness over the insulator. The contact pin is coated and shortened in such a way that the erosion resistance projects as much as possible into the electrode gap. The platinum central electrode is shaped as a nail whose rear part has a smaller diameter than the front part which projects out of the insulator.

Abstract translation: 具有火花塞的管状金属外壳，其由所述壳体支撑的绝缘体，和一个嵌入绝缘体内导体装置，其中，所述内导体组件由一连接螺栓，烧除电阻器，接触销和铂中心电极的与所述固定壳体是在四个接地电极 被朝向中心电极向下弯曲并突出至其在绝缘体上的厚度，接触销被涂覆且长度缩短，使得所述烧化电阻尽可能远优选火花隙，并且其中，所述铂中心电极具有钉的形状，其后侧 比前部，其从绝缘体俯瞰更小的直径的一部分。

公开(公告)号：WO1993000731A1

公开(公告)日：1993-01-07

申请号：PCT/DE1992000496

申请日：1992-06-17

Applicant: ROBERT BOSCH GMBH ,  SCHÄFER, Hans ,  KLETT, Dittmar ,  KERSTING, Hermann ,  MÜLLER, Bernd ,  FISCHER, Jochen

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/40

CPC classification number: H01T13/40 ,  F02P9/002 ,  F02P13/00

Abstract: To prevent electrical leaks in the combustion chamber end of sparking plugs for fuel-air mixtures and hence to produce constantly high-powered sparks, a tripping diode cascade (29) is built into the longitudinal drilling (24) of the electrically insulating body (17) of a sparking plug (19). This tripping diode cascade (29) forms one component with the connector (30) of the sparking plug (10) and is surrounded by an electrically insulating shell (31) by means of which the longitudinal drilling (24) in the electrically insulating body (17) is filled. On the combustion chamber side the tripping diode cascade (29) is connected to be electrically conductive to a coupling pin (28), the combustion chamber side section of which penetrates into a prior art electrically conductive moulding (27) and is thus connected to the central electrode (25) of the sparking plug (10). The description relates to several easily fitted and reliable embodiments of the arrangement of a tripping diode cascade (29) in the electrically insulating body (17) of sparking plugs (10).

公开(公告)号：WO1992004754A1

公开(公告)日：1992-03-19

申请号：PCT/DE1991000640

申请日：1991-08-10

Applicant: ROBERT BOSCH GMBH ,  BENEDIKT, Walter ,  ZIEGLER, Bodo ,  WEYL, Helmut ,  KLETT, Dittmar ,  NOACK, Rainer

Inventor： ROBERT BOSCH GMBH

IPC: H01T13/20

CPC classification number: H01T21/02 ,  H01T13/20

Abstract: The proposal is for an electric spark-generating ignition device (10) designed especially for the ignition of gaseous fuels; it has a tubular metal housing (11) with securing means (12) on the outside. In the longitudinal drilling (18) of the housing (11) is fitted a tubular electrical insulator (27) with its section on the combustion chamber side sealed while its head (27/3) projects from the housing (11) on the connection side. The flange-like fixing (37) of the central electrode (34) passing through the central drilling (31) of the electrical insulator (27) is pressed on the combustion chamber side by a mechanically prestressed spring component (48) and is thus sealed in the central drilling of the electrical insulator (27). The spring component (48) is electrically insulated from the central electrode (34) and is supported on a component (20) secured to the housing (11). The central electrode (34) can form a single piece with the connecting piece (41) but both may be separate components and joined via an equalising spring (61) or an equalising spring (61') and an interference suppressor (70).