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a spark plug

A technology of spark plugs and negative poles, applied in the field of spark plugs, to achieve the effects of reduced exhaust emissions, enhanced power, and reduced impact

Active Publication Date: 2017-05-03
刘全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spark plug will not cause the instantaneous pressure in the cavity to be greater than the maximum pressure set by the car computer system, and will not have an impact on the car computer system, thus affecting the normal driving of the car

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 4 , Figure 5 As shown, this embodiment shows a spark plug 200, including a spark plug shell 201, an insulator 202 and a central electrode 203;

[0037] The spark plug shell 201 is provided with a hollow cavity 204, the insulator 202 is fixed at the lower part of the hollow cavity 204, the central electrode 203 is covered in the insulator 202, and the top of the central electrode 203 extends through the insulator 202 and is exposed. In the hollow cavity 204 of the spark plug housing 201; the insulator 202 can be made of a material with high thermal conductivity, such as sintered alumina ceramic material;

[0038] Above the central electrode 203 is provided with a negative electrode ignition unit 205, the negative electrode ignition unit is cylindrical, and the inner wall of the hollow cavity 204 at the lower edge of the negative electrode ignition unit 205 is provided with a blocking device 206; the hollow cavity 204 The upper edge of the upper edge is nar...

Embodiment 2

[0041] see Figure 6 As shown, embodiment 1 is repeated, the difference is that: the wall of the hollow cavity 204 of the spark plug housing 201 is provided with an annular protrusion 209, and the annular protrusion 209 divides the hollow cavity 204 into a conductive first chamber 210 and the second chamber 211; the first chamber 210 and the second chamber 211 communicate through the channel 212 in the middle of the annular protrusion 209; the shortest distance from the central electrode 203 to the annular protrusion is 1 mm, and the central electrode to the negative electrode The shortest distance of the ignition unit is 2 millimeters; the setting of the above-mentioned distance makes the shortest distance from the central electrode to the top of the annular protrusion exceed 1 millimeter compared with the prior art, which increases the cut-off of the communication channel between the first chamber and the second chamber. Area; can effectively reduce the impact of the spark p...

Embodiment 3

[0044] join Figure 7 , Figure 8 As shown, repeat Example 2, the difference is that: the negative ignition unit 205 is provided with seven exhaust holes 208, which are evenly arranged on the negative ignition unit 205, and the area of ​​the exhaust holes 208 occupies 50% of the cross-sectional area of ​​the negative sparking unit 208; the shortest distance from the central electrode 203 to the negative sparking unit 205 is 1.1 mm, and the shortest distance from the central electrode 203 to the ring protrusion 209 is 2.1 mm.

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PUM

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Abstract

A spark plug (200) comprising an outer housing (201), an insulator (202) and a core electrode (203). A hollow cavity (204) is arranged inside the outer housing (201), the insulator (202) is fixed within the lower portion of said cavity (204), and the core electrode (203) is enclosed within said insulator (202); the upper portion of the core electrode (203) extends bare beyond the insulator (202) into the hollow cavity (204) inside the outer housing (201). A negative-electrode sparking unit (205) is arranged above the core electrode (203) and is fixed to the walls of the cavity (204) within the outer housing (201); gas exhaust holes (208) penetrate longitudinally through the negative-electrode sparking unit (205). The smallest distance between the core electrode (203) and the walls of the cavity (204) is greater than the smallest distance between the core electrode (203) and the negative-electrode sparking unit (205). The present spark plug effectively reduces the impact current spark plugs may cause upon vehicle computer systems due to rapid, whole combustion during the ignition cycle, while also achieving fuel economies, increased power and significant reductions in tail gas exhausts.

Description

technical field [0001] The invention relates to an internal combustion engine of an automobile, in particular to a spark plug. Background technique [0002] It is well known to use a spark plug to ignite the air and fuel mixture in the combustion chamber of a spark ignition engine. [0003] The performance of the spark plug can directly affect the performance of the engine; if the spark plug does not properly ignite the air and fuel mixture located in the combustion chamber, there will be at least partially unburned fuel, resulting in loss of power, reduced fuel efficiency and increased emissions of hydrocarbons. [0004] In order to solve the problem of incorrect ignition, Chinese patent 201180045087.9 discloses a spark plug (see figure 1 and figure 2 As shown), the use of the spark plug can significantly enhance the power of the car, the enhanced power is about 10%, can reduce the exhaust emission by nearly 50%, and can also realize the fuel saving of the spark plug by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T13/34
CPCH01T13/54
Inventor 奥利克桑德尔·伯曼科
Owner 刘全