CN102299486A

CN102299486A - Multi-point spark plug

Info

Publication number: CN102299486A
Application number: CN2011101426493A
Authority: CN
Inventors: 郑霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2011-12-28

Abstract

The invention provides a multi-point spark plug, belonging to internal combustion engine components. The spark plug comprises an insulator, wherein the insulator is internally provided with a central electrode; one end of the central electrode is provided with a wiring nut, and the other end of the central electrode uncovers the insulator; a metal outer housing is wrapped on the outer part of the insulator; an L-shaped grounding electrode is led from the terminal part of the metal outer housing; the grounding electrode is opposite to a leading-out terminal of the central electrode, and the surface opposite to the central electrode, of the grounding electrode is densely provided with grounding points; and the surface opposite to the grounding electrode, of the central electrode is provided with central points. The electric discharging scale between electrodes can be expanded to a large extent by the multi-point spark plug, thus the combustion efficiency of an internal combustion engine is improved.

Description

Multi-stylus end spark plug

Affiliated technical field

The present invention relates to a kind of internal combustion engine component, especially a kind of insulator, metal shell, central electrode, grounding electrode of including, and rely on electric discharge phenomena between electrode to produce the spark plug of electric spark.

Background technology

For internal combustion engine, cylinder needs plug ignition when stroke does work, and fuel obtains higher combustion efficiency in the internal combustion engine in order to make, and needs the design of spark plug is proposed higher requirement.

Present sparking plug for internal combustion engine primary structure as shown in Figure 1, comprise insulator 3, be wrapped in the central electrode 1 in the insulator 3, these central electrode 1 one ends have wiring nut (not shown), the other end exposes insulator 3, be wrapped with metal shell 4 in described insulator 3 external packets, grounding electrode 2 is drawn in these metal shell 4 ends, this grounding electrode is relative with the exit of described central electrode 1, after adding high pressure between described central electrode 1 and the grounding electrode 2, gas wherein is with breakdown, thereby generation electric spark, under the structure of conventional ignition plug, the particular point that does not exist electric charge to gather between central electrode 1 and the grounding electrode is so that electric discharge phenomena can take place fairly largely, and only be to rely on two interelectrode high-strength voltages by force with the air breakdown of ignition place 12, this not only needs to provide high pressure to spark plug, and is difficult to make the extensive electric discharge phenomena of generation between electrode, thereby influences the combustion efficiency of cylinder fuel.

Summary of the invention

At the problems referred to above, the object of the present invention is to provide a kind of multi-stylus end spark plug, this multi-stylus end spark plug can enlarge interelectrode discharge scale largely, improves the combustion efficiency of internal combustion engine with this.

The technical scheme that technical solution problem of the present invention is provided is as follows: this multi-stylus end spark plug comprises insulator, be provided with central electrode in the described insulator, this central electrode one end has the wiring nut, the other end exposes insulator, be enclosed with metal shell in described insulator exterior, a grounding electrode that is the L type is drawn in this metal shell end, this grounding electrode is relative with the exit of central electrode, and described grounding electrode and described central electrode facing surfaces are densely covered with the ground connection tip, and described central electrode and described grounding electrode facing surfaces are provided with central tip.

Further, the end of described grounding electrode is rounded, and the most advanced and sophisticated line of centres around described central electrode and grounding electrode of described ground connection is evenly arranged.

Further, have a described central tip on the described central electrode, and this central tip is over against the center of described grounding electrode.

Beneficial effect of the present invention is: this multi-stylus end spark plug is when work, after product between described central electrode and the grounding electrode adds voltage, according to electric charge as can be known in the regularity of distribution on metallic conductor surface, a large amount of electric charges will distribute at the most advanced and sophisticated place of described central tip and ground connection, thereby make on the line at described central tip and each ground connection tip and form highfield, under the less situation of two inter-electrode voltages, between each described central tip and ground connection tip, can form extensive electric discharge phenomena, thereby improve the combustion efficiency of cylinder fuel.

Description of drawings

Fig. 1 be the ordinary internal combustion engine spark plug partly cut open schematic diagram.

Fig. 2 be this multi-stylus end spark plug an embodiment partly cut open schematic diagram.

Fig. 3 is the principle schematic of Fig. 2 embodiment.

Embodiment

The present invention is further described below in conjunction with drawings and Examples:

Fig. 2, embodiment illustrated in fig. 3 in, this multi-stylus end spark plug comprises insulator 3, be provided with central electrode 1 in the described insulator 3, these central electrode 1 one ends have the wiring nut, the other end exposes insulator 3, be wrapped with metal shell 4 in described insulator 3 external packets, a grounding electrode 2 that is the L type is drawn in these metal shell 4 ends, this grounding electrode 2 is relative with the exit of central electrode 1, and described grounding electrode 2 is densely covered with ground connection tip 21 with described central electrode 1 facing surfaces, and described central electrode 1 is provided with central tip 11 with described grounding electrode 2 facing surfaces.

Above-mentioned multi-stylus end spark plug, the end of described grounding electrode 2 is rounded, and the line of centres that described ground connection most advanced and sophisticated 21 centers on described central electrode 1 and grounding electrode 2 is evenly arranged.

Above-mentioned multi-stylus end spark plug have a described central tip 11 on the described central electrode 1, and this central tip 11 is over against the center of described grounding electrode 2.

More than two kinds of additional improved purposes all be to make two interelectrode electric sparks to have comparatively uniform shape.

Above-mentioned multi-stylus end spark plug is when work, after product between described central electrode 1 and the grounding electrode 2 adds voltage, according to electric charge as can be known in the regularity of distribution on metallic conductor surface, a large amount of electric charges will distribute at most advanced and sophisticated 21 places of described central tip 11 and ground connection, thereby make on the line at described central tip 11 and each ground connection tip 21 and form highfield, under the less situation of two inter-electrode voltages, between each described central tip 11 and ground connection tip 21, can form extensive electric discharge phenomena, thereby improve the combustion efficiency of cylinder fuel.

Claims

1. multi-stylus end spark plug, comprise insulator, be provided with central electrode in the described insulator, this central electrode one end has the wiring nut, the other end exposes insulator, be enclosed with metal shell in described insulator exterior, a grounding electrode that is the L type is drawn in this metal shell end, this grounding electrode is relative with the exit of central electrode, it is characterized in that: described grounding electrode and described central electrode facing surfaces are densely covered with the ground connection tip, and described central electrode and described grounding electrode facing surfaces are provided with central tip.

2. multi-stylus end spark plug according to claim 1, it is characterized in that: the end of described grounding electrode is rounded, and the most advanced and sophisticated line of centres around described central electrode and grounding electrode of described ground connection is evenly arranged.

3. multi-stylus end spark plug according to claim 1 is characterized in that: have a described central tip on the described central electrode, and this central tip is over against the center of described grounding electrode.