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Spark plug electrode, spark plug and method for manufacturing spark plug electrode

A technology of spark plugs and electrodes, applied in spark plug manufacturing, spark plugs, circuits, etc., can solve problems such as material loss, and achieve the effects of improving corrosion resistance and erosion resistance, improving connectivity, and high corrosion and erosion stability.

Active Publication Date: 2020-08-14
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this conventional spark plug electrode is that when the spark plug electrode is connected to the spark plug assembly, usually by a welding process, the material of the exposed, apparently heat-conducting electrode core is lost and transferred to the spark plug electrode or to be connected to the spark plug electrode. area around the spark plug

Method used

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  • Spark plug electrode, spark plug and method for manufacturing spark plug electrode
  • Spark plug electrode, spark plug and method for manufacturing spark plug electrode
  • Spark plug electrode, spark plug and method for manufacturing spark plug electrode

Examples

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Embodiment Construction

[0023] The invention will be described in detail with the aid of embodiments. Only the main aspects of the invention are shown in the drawings. All other aspects have been left out for clarity. Furthermore, the same reference numerals denote the same components.

[0024] as by figure 1 It can be seen that the spark plug 1 according to one embodiment comprises a ground electrode 2 and a center electrode 3 . The insulator 4 is arranged such that the intermediate electrode 3 protrudes slightly from the insulator 4 in a known manner. The insulator 4 itself is partially surrounded by a housing 5 . Reference numeral 6 denotes an electrical connection nut. An electrically conductive connection is provided by an electrical connection nut 6 via a connection screw 7 and a connection element 8 made of conductive glass to the intermediate electrode 3 is provided.

[0025] According to the invention, at least one of the electrodes is now specially designed. to this end, figure 2 O...

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Abstract

The invention relates to a spark plug electrode (2) with an electrode foot (10) and an electrode tip (9). The spark plug electrode includes an electrode core (11) and an electrode cover (11) surrounding the electrode core (11). 12) and a connection area (13) for connecting the spark plug electrode (2) to an assembly of another spark plug, wherein the connection area (13) is arranged on the electrode foot (10), and wherein , the material (17) of the connection area (13) and the material (14) of the electrode housing (12) are different.

Description

technical field [0001] The invention relates to a spark plug electrode and a spark plug with improved connectability of the spark plug electrode to components of the spark plug with a permanently stable connection of the spark plug electrode. Furthermore, the invention also relates to a method for producing a spark plug electrode. Background technique [0002] In order to improve the thermal conductivity and thus also the heat resistance of the spark plug electrode, the spark plug electrode comprises an electrode core with high thermal conductivity and an electrode casing surrounding the electrode core, wherein the electrode core is placed in the The electrode feet are exposed (freiliegen). The material of the electrode housing is selected for high corrosion and erosion resistance. The disadvantage of this conventional spark plug electrode is that when the spark plug electrode is connected to the spark plug assembly, usually by a welding process, the material of the expose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T13/16H01T13/39H01T21/02H01T13/32
CPCH01T13/16H01T13/32H01T13/39H01T21/02
Inventor M.弗莱施豪尔M.罗艾克莱恩A.施拉姆G.彼得森
Owner ROBERT BOSCH GMBH
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