CN202651617U - Pole layer type spark plug - Google Patents
Pole layer type spark plug Download PDFInfo
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- CN202651617U CN202651617U CN 201220272182 CN201220272182U CN202651617U CN 202651617 U CN202651617 U CN 202651617U CN 201220272182 CN201220272182 CN 201220272182 CN 201220272182 U CN201220272182 U CN 201220272182U CN 202651617 U CN202651617 U CN 202651617U
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Abstract
The utility model relates to a pole layer type spark plug and belongs to a petrol engine ignition device. An outer side of an end face of a metal casing (2) is provided with at least one layer of electrode bodies, an electrode body comprises two negative pole plates (7), negative pole columns (5) connected with the two negative pole plates (7), and positive pole plates (4) which are arranged in correspondence with the two negative pole plates (7), wherein the positive pole plates (4) are arranged on a central electrode (3), and discharge points (6) can be arranged on the positive pole plates (4), or the negative pole columns (5) or the two negative pole plates (7). As the number of the discharge points increases, an igniting effect becomes better. Space around the discharge points is large, so the fixed gas flows easily and is easy to combust; heat radiation condition is good; phenomena of ablation and corrosion do not easily occur; electrode loss amount is low; and service life of the spark plug is prolonged. The pole layer type spark plug has a simple structure, is convenient to mount and debug, has low manufacturing cost, is applicable to various petrol engines, and is especially applicable to usage of engines of multi-point igniting and lean combustion.
Description
Technical field
The utility model relates to a kind of engine ignitor, particularly relates to a kind of utmost point laminar spark plug.
Background technology
Chinese patent notification number: CN 201398014Y, the day for announcing: on February 3rd, 2010, utility model title " a kind of spark plug with the high-tension ignition plate ", comprise insulator, metal shell and central electrode, the upper end of central electrode is provided with the wiring nut, and stretch out outside the end face of metal shell the lower end of described central electrode, and being connected with the high-tension ignition plate in the bottom of central electrode, corresponding metal shell or cylinder body are provided with the discharge limit on the high-tension ignition plate.The discharge limit of described high-tension ignition plate simultaneously goes up corresponding metal shell or cylinder body is provided with insulating barrier.Be provided with air-vent on the plate face of described high-tension ignition plate.A plurality of discharge limits are arranged, can realize multi-point spark, the mist burning is even, and radiating condition is better, ablates and the corrosion phenomenon improvement, and prolong the useful life of spark plug.Simple in structure, Installation and Debugging are convenient, and cost of manufacture is lower, and the engine that is suitable for various petrol engines, particularly multi-point spark uses.But the discharge limit on this spark plug mesohigh igniting plate is towards the top of cylinder body, be unfavorable for simulation model for mixing gases flows, and the cylinder body top is positioned at the limit section of swirl gas, and mixed gas concentration is relatively low, requires igniting power higher, the fire karyomorphism becomes slow, the path of igniting is longer, and ignitor firing time is long, and the space of gas flow is less near the discharge limit, radiating condition is relatively poor, still easily produces and ablates and corrosion phenomenon.
Summary of the invention
The purpose of this utility model be little for existing spark plug discharge limit locational space, simulation model for mixing gases flows is poor, ignitor firing time is long, cause easily defective and the deficiency of the red-hot and carbon distribution phenomenon of central electrode, propose a kind of simple in structure, the igniting limit is many, be easy to simulation model for mixing gases flows and burning, the utmost point laminar spark plug of lighting a fire effective.Its cost of manufacture is lower, long service life, and ignition point is many, can satisfy the needs of multi-point spark and lean burn.
The purpose of this utility model is achieved in the following ways: a kind of utmost point laminar spark plug, comprise insulator, metal shell, central electrode and discharge tip, stretch out outside the end face of metal shell the lower end of central electrode, described central electrode stretches out the length of end face of metal shell greater than five millimeters, corresponding central electrode is provided with a negative terminal at least on the end face of described metal shell, one end of described negative terminal is fixed on the end face of metal shell, the surface of described negative terminal or central electrode is provided with two-layer discharge tip at least, discharge tip is by layer axially evenly distributing layer by layer along central electrode, the number of every one deck discharge tip is one, or the number of every one deck discharge tip is a plurality of and radially evenly distributes along central electrode, all leaves discharging gap between discharge tip and central electrode or the negative terminal.
The length that described central electrode stretches out the end face of metal shell is six millimeters to 15 millimeters.
The surface of described negative terminal or central electrode is provided with two-layer discharge tip at least, discharge tip near metal shell end face one side is the ground floor discharge tip, the number of the upper discharge tip of each layer equates or the number of each layer discharge tip increases progressively by the number of plies or the number of top discharge tip is more than the number of ground floor discharge tip, and the length of described negative terminal is stretched out the length of metal shell end face more than or equal to central electrode.
A kind of utmost point laminar spark plug, comprise insulator, metal shell, central electrode and discharge tip, stretch out outside the end face of metal shell the lower end of central electrode, described central electrode stretches out the length of end face of metal shell greater than five millimeters, the outside of described metal shell end face is provided with one deck electrode body at least, described electrode body comprises two negative plates, connect two negative plates negative terminal and with the positive plate of two corresponding settings of negative plate, described negative terminal is fixed on the end face of metal shell, described positive plate is arranged on the central electrode, correspondence is provided with discharge tip on described positive plate or the negative plate, all leaves discharging gap between discharge tip and negative plate or the positive plate.
Described electrode body is two layers, every one deck electrode body comprises two negative plates, be arranged at two positive plates between the negative plate and the negative terminal that is connected two negative plates, described negative terminal is fixed on the end face of metal shell, electrode body near metal shell end face one side is the ground floor electrode body, an end face that negative plate is metal shell of ground floor electrode body, it is negative plate on front one deck electrode body that a negative plate is arranged in two negative plates in the later layer electrode body, positive plate and negative plate axially are provided with on the relative position and put a tip, all leave discharging gap between discharge tip and negative plate or the positive plate.
Described electrode body is four layers, every one deck electrode body comprises two negative plates, respectively with two negative plate settings, two positive plates at grade and the negative terminal that is connected two negative plates, two negative plates of every one deck electrode body are fixed on the negative terminal, described negative terminal is fixed on the end face of metal shell, electrode body near metal shell end face one side is the ground floor electrode body, it is negative plate on front one deck electrode body that a negative plate is arranged in two negative plates in the later layer electrode body, be provided with on positive plate and the radially relative position of negative plate and put a tip, all leave discharging gap between discharge tip and negative plate or the positive plate.
The length that described central electrode stretches out the end face of metal shell is six millimeters to 15 millimeters.
Described negative plate is annular or polygon, or cantilever-shaped, and described positive plate is I-shaped or disc or polygon or cantilever-shaped.
Described electrode body has two layers at least, the number of the discharge tip on each layer electrode body equate or each layer electrode body on the number of discharge tip increase progressively by the number of plies or top electrode body on the number of discharge tip more than the number of the discharge tip on the ground floor electrode body, the length of described negative terminal is stretched out the length of metal shell end face more than or equal to central electrode.
Compared with prior art the utlity model has following obvious advantage:
1, discharge tip of the present utility model can be arranged on positive plate or negative plate or the negative terminal, increase the flexibility that discharge tip arranges, so that discharge tip quantity increases, can reduce the igniting power of each discharge tip, thereby reduce the export license amount, the useful life of extending plug.Near the space of the position of discharge tip is large in the electrode body, has improved the external environment condition of discharge tip igniting, is easy to simulation model for mixing gases flows and burning, and it is effective to light a fire, and radiating condition is better, is difficult for producing ablating and corrosion phenomenon.Form a fireball during electrode body burning, sufficient combustion is difficult for producing the carbon distribution phenomenon.
2, central electrode of the present utility model stretches out the length of end face of metal shell greater than five millimeters, central electrode stretches out the length of the end face of metal shell to be decided according to the volume of engine cylinder combustion chamber, the number of plies of electrode body is decided according to the length that central electrode stretches out the end face of metal shell, the length of end face that central electrode stretches out metal shell is longer, the number of plies of electrode body is more, the discharge tip number at the center of close swirl gas is just more, and the igniting effect of spark plug is better.Can also be with the discharge tip concentrated setting on the utmost point laminar spark plug in the position near the swirl gas center, so that a plurality of discharge tip of utmost point laminar sparking-plug electrode body are towards the also close relatively high position of mixed gas concentration, the fire karyomorphism becomes fast, and fiery nuclear proliferation path is shorter, is easy to burning.Because the discharge tip quantity of utmost point laminar spark plug is many, Ignition Stability improves, gap between discharge tip and positive plate or negative terminal or negative plate or the central electrode can be less, and required ignition energy is less also, and the path of igniting is shorter, ignitor firing time is short, obviously reduce engine consumption, economy is strong, is particularly suitable for the needs of lean burn, also can reduce the discharge capacity of pernicious gas, be conducive to environmental protection.
3, the utility model is simple in structure, and Installation and Debugging are convenient, and cost of manufacture is lower, and the engine that is suitable for various petrol engines, particularly multi-point spark and lean burn uses.
Description of drawings
Fig. 1 is the schematic diagram of the utility model the first structure.
Fig. 2 is the schematic diagram of the utility model the second structure.
Fig. 3 is the schematic diagram of the third structure of the utility model.
Fig. 4 is the schematic diagram of the 4th kind of structure of the utility model.
Fig. 5 is the schematic diagram of the 5th kind of structure of the utility model.
Fig. 6 is the schematic diagram of the 6th kind of structure of the utility model.
Among the figure, insulator 1, metal shell 2, central electrode 3, positive plate 4, negative terminal 5, discharge tip 6, negative plate 7.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail:
The first solution, referring to Fig. 1, Fig. 2, a kind of utmost point laminar spark plug of the present utility model, comprise insulator 1, metal shell 2, central electrode 3 and discharge tip 6, stretch out outside the end face of metal shell 2 lower end of central electrode 3, described central electrode 3 stretches out the length of end face of metal shell 2 greater than five millimeters, corresponding central electrode 3 is provided with a negative terminal 5 at least on the end face of described metal shell 2, one end of described negative terminal 5 is fixed on the end face of metal shell 2, the surface of described negative terminal 5 or central electrode 3 is provided with two-layer discharge tip 6 at least, discharge tip 6 is by layer axially evenly distributing layer by layer along central electrode 3, the number of every one deck discharge tip 6 is one, or the number of every one deck discharge tip 6 is a plurality of and radially evenly distributes along central electrode 3, all leaves discharging gap between discharge tip 6 and central electrode 3 or the negative terminal 5.The length that described central electrode 3 stretches out the end face of metal shell 2 is six millimeters to 15 millimeters.The surface of described negative terminal 5 or central electrode 3 is provided with two-layer discharge tip 6 at least, discharge tip 6 near metal shell 2 end faces one side is ground floor discharge tip 6, the number of the upper discharge tip 6 of each layer equates or the number of each layer discharge tip 6 increases progressively by the number of plies or the number of top discharge tip 6 is more than the number of ground floor discharge tip 6, and the length of described negative terminal 5 is stretched out the length of metal shell 2 end faces more than or equal to central electrode 3.
The length the longest that the central electrode 3 of existing spark plug stretches out the end face of metal shell 2 is five millimeters, and its discharge tip 6 is near the cylinder upper wall and be positioned at the lower position of mixed gas concentration, and the igniting difficulty is higher, and flame combustion is slow.The structure of the utility model spark plug and existing spark plug are basic identical, but difference is: the end face of metal shell 2 is provided with a negative terminal 5 at least, and an end of negative terminal 5 is fixed on the end face of metal shell 2, the surface of described negative terminal 5 or central electrode 3 is provided with two-layer discharge tip 6 at least, discharge tip 6 is towards central electrode 3 or negative terminal 5, namely when discharge tip 6 is arranged on central electrode 3 surperficial, put a tip 6 towards negative terminal 5, when discharge tip 6 was arranged on negative terminal 5 surperficial, discharge tip 6 was towards central electrode 3.Put a tip 6 and axially distribute layer by layer along central electrode 3 by layer, and between each layer discharge tip 6 spaced apart evenly, be easy to simulation model for mixing gases flows and burning, and radiating condition is better.The number of plies of discharge tip 6 is decided according to the length that central electrode 3 stretches out the end face of metal shell 2, central electrode 3 stretches out the length of end face of metal shell 2 greater than five millimeters, central electrode 3 stretches out the length of the end face of metal shell 2 and decides flexibly changing on the volume of cylinder chamber.The surface of negative terminal 5 or central electrode 3 is provided with two-layer discharge tip 6 at least in the utility model, discharge tip 6 near metal shell 2 end faces one side is ground floor discharge tip 6, when the number of the discharge tip 6 of every one deck increases progressively by the number of plies, for example the number of ground floor discharge tip 6 is two, the number of second layer discharge tip 6 is four, the number of the 3rd layer of discharge tip 6 is six, be incremented to successively last one deck, the number of plies that is discharge tip 6 is more, the number of discharge tip 6 is more, the number of the discharge tip 6 at the center of close swirl gas is also more, is conducive to rapid-ignition and conflagration.Can also be with the discharge tip concentrated setting on the utmost point laminar spark plug in the position near the swirl gas center, the number that is top discharge tip 6 is more than the number of ground floor discharge tip 6, for example when total number of plies of discharge tip 6 is three layers, the number of ground floor discharge tip 6 equals the number of second layer discharge tip 6, and the number of ground floor discharge tip 6 is less than the number of the 3rd layer of discharge tip 6, so that a plurality of discharge tip of utmost point laminar sparking-plug electrode body are towards the also close relatively high position of mixed gas concentration, it is effective to light a fire, the igniting difficulty is low, the fire karyomorphism becomes fast, fire nuclear proliferation path is shorter, is easy to burning.And compared with prior art, all leave discharging gap between discharge tip 6 and central electrode 3 or the negative terminal 5, but because mixed gas concentration is higher, be easy to light, discharging gap can be less, and required ignition energy is less also, the path of igniting is shorter, and ignitor firing time is short.
The second solution, referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of utmost point laminar spark plug of the present utility model, comprise insulator 1, metal shell 2, central electrode 3 and discharge tip 6, stretch out outside the end face of metal shell 2 lower end of central electrode 3, described central electrode 3 stretches out the length of end face of metal shell 2 greater than five millimeters, the outside of described metal shell 2 end faces is provided with one deck electrode body at least, described electrode body comprises two negative plates 7, connect two negative plates 7 negative terminal 5 and with the positive plate 4 of two negative plate 7 corresponding settings, described negative terminal 5 is fixed on the end face of metal shell 2, described positive plate 4 is arranged on the central electrode 3, correspondence is provided with discharge tip 6 on described positive plate 4 or the negative plate 7, all leaves discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4.
Described electrode body is two layers, every one deck electrode body comprises two negative plates 7, be arranged at two positive plates 4 between the negative plate 7 and the negative terminal 5 that is connected two negative plates 7, described negative terminal 5 is fixed on the end face of metal shell 2, electrode body near metal shell 2 end faces one side is the ground floor electrode body, an end face that negative plate 7 is metal shells 2 of ground floor electrode body, it is negative plate 7 on front one deck electrode body that a negative plate 7 is arranged in two negative plates 7 in the later layer electrode body, positive plate 4 and negative plate 7 axially is provided with on the relative positions and puts a tip 6, all leaves discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4.
Described electrode body is four layers, every one deck electrode body comprises two negative plates 7, with two negative plates 7 at grade two positive plates 4 and the negative terminal 5 that is connected two negative plates 7 are set respectively, two negative plates 7 of every one deck electrode body are fixed on the negative terminal 5, described negative terminal 5 is fixed on the end face of metal shell 2, electrode body near metal shell 2 end faces one side is the ground floor electrode body, it is negative plate 7 on front one deck electrode body that a negative plate 7 is arranged in two negative plates 7 in the later layer electrode body, be provided with on positive plate 4 and the radially relative position of negative plate 7 and put a tip 6, all leave discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4.
The length that described central electrode 3 stretches out the end face of metal shell 2 is six millimeters to 15 millimeters.
Described negative plate 7 is annular or polygon, or cantilever-shaped, and described positive plate 4 is I-shaped or disc or polygon or cantilever-shaped.
Described electrode body has two layers at least, the number of the discharge tip 6 on each layer electrode body equate or each layer electrode body on the number of discharge tip 6 increase progressively by the number of plies or top electrode body on the number of discharge tip 6 more than the number of the discharge tip 6 on the ground floor electrode body, the length of described negative terminal 5 is stretched out the length of metal shell 2 end faces more than or equal to central electrode 3.
The outside of described metal shell 2 end faces is provided with one deck electrode body at least, and described electrode body comprises two negative plates 7, connect two negative plates 7 negative terminal 5 and with the positive plate 4 of two negative plate 7 corresponding settings.There are two kinds of forms in electrode body: the first electrode body is referring to Fig. 3, shown in Figure 4ly comprise two negative plates 7, be arranged at two positive plates 4 between the negative plate 7 and the negative terminal 5 that is connected two negative plates 7, described negative terminal 5 is fixed on the end face of metal shell 2, electrode body near metal shell 2 end faces one side is the ground floor electrode body, an end face that negative plate 7 is metal shells 2 of ground floor electrode body, it is negative plate 7 on front one deck electrode body that a negative plate 7 is arranged in two negative plates 7 in the later layer electrode body, positive plate 4 and negative plate 7 axially is provided with on the relative positions and puts a tip 6, all leaves discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4; The second electrode body is referring to Fig. 5, shown in Figure 6ly comprise two negative plates 7, with two negative plates 7 at grade two positive plates 4 and the negative terminal 5 that is connected two negative plates 7 are set respectively, two negative plates 7 of every one deck electrode body are fixed on the negative terminal 5, described negative terminal 5 is fixed on the end face of metal shell 2, electrode body near metal shell 2 end faces one side is the ground floor electrode body, it is negative plate 7 on front one deck electrode body that a negative plate 7 is arranged in two negative plates 7 in the later layer electrode body, be provided with on positive plate 4 and the radially relative position of negative plate 7 and put a tip 6, all leave discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4.
When total number of plies of electrode body was three layers, the number of the discharge tip 6 on each layer electrode body can equate that for example the number of discharge tip 6 is five on every one deck electrode body; Perhaps the number of the discharge tip 6 on each layer electrode body increases progressively by the number of plies, for example the number of discharge tip 6 is three on the ground floor electrode body, the number of discharge tip 6 is six on the second layer electrode body, the number of the 3rd layer of discharge tip 6 is nine, the number of plies that is discharge tip 6 is more, the number of discharge tip 6 is more, and the number of the discharge tip 6 at the center of close swirl gas is also more, is conducive to rapid-ignition and conflagration; Perhaps the number of the discharge tip 6 on the top electrode body is more than the number of the discharge tip 6 on the ground floor electrode body, for example the number of discharge tip is four on the ground floor electrode body, the number of discharge tip 6 is four on the second layer electrode body, the number of discharge tip 6 is ten on the triple electrode body, so that a plurality of discharge tip of utmost point laminar sparking-plug electrode body are towards the also close relatively high position of mixed gas concentration, it is effective to light a fire, the igniting difficulty is low, the fire karyomorphism becomes fast, fire nuclear proliferation path is shorter, is easy to burning.
Described negative plate 7 is annular or polygon, or cantilever-shaped, and described positive plate 4 is I-shaped or disc or polygon or cantilever-shaped, or other shapes.Described negative terminal 5 can only have one, also can have a plurality of.Positive plate 4 and negative plate 7 change of shape are various, satisfy the discharge tip 6 and negative plate 7 corresponding getting final product that are arranged on the positive plate 4, and perhaps satisfy the discharge tip 6 and positive plate 4 corresponding getting final product that is arranged on the negative plate 7.
Utmost point laminar spark plug shown in Figure 3 is provided with two-layer electrode body, every one deck electrode body comprises two negative plates 7, be arranged at two positive plates 4 between the negative plate 7 and the negative terminal 5 that is connected two negative plates 7, one end of described negative terminal 5 is vertically fixed on the end face of metal shell 2, be fixed with another negative plate 7 on the other end of negative terminal 5, described positive plate 4 is arranged on the end face central electrode 3 outward that stretches out metal shell 2, close metal shell 2 end faces one side is the ground floor electrode body, an end face that negative plate 7 is metal shells 2 of ground floor electrode body, it is negative plate 7 on the ground floor electrode body that a negative plate 7 is arranged in two negative plates 7 of second layer electrode body, be to have a negative plate to have in the two-layer adjacent electrode body, positive plate 4 and negative plate 7 axially is provided with on the relative positions and puts a tip 6, all leave discharging gap between discharge tip 6 and negative plate 7 or the positive plate 4, discharge tip 6 is that wedge angle is away from cone or wedge angle body or the needle body of the body surface that is provided with discharge tip, discharge tip 6 can have a plurality of, they can be arranged on the middle part of positive plate, also can be arranged on the position corresponding with negative terminal 5.All leave discharging gap between discharge tip 6 and the negative plate 7, be easy to circulation and the burning of mist, and radiating condition is better, be difficult for producing and ablate and corrosion phenomenon.
Claims (9)
1. utmost point laminar spark plug, comprise insulator (1), metal shell (2), central electrode (3) and discharge tip (6), stretch out outside the end face of metal shell (2) lower end of central electrode (3), it is characterized in that: described central electrode (3) stretches out the length of end face of metal shell (2) greater than five millimeters, corresponding central electrode (3) is provided with a negative terminal (5) at least on the end face of described metal shell (2), one end of described negative terminal (5) is fixed on the end face of metal shell (2), the surface of described negative terminal (5) or central electrode (3) is provided with two-layer discharge tip (6) at least, discharge tip (6) is by layer axially evenly distributing layer by layer along central electrode (3), the number of every one deck discharge tip (6) is one, or the number of every one deck discharge tip (6) is a plurality of and radially evenly distributes along central electrode (3), all leaves discharging gap between discharge tip (6) and central electrode (3) or the negative terminal (5).
2. a kind of utmost point laminar spark plug according to claim 1, it is characterized in that: the length that described central electrode (3) stretches out the end face of metal shell (2) is six millimeters to 15 millimeters.
3. a kind of utmost point laminar spark plug according to claim 1, it is characterized in that: the surface of described negative terminal (5) or central electrode (3) is provided with two-layer discharge tip (6) at least, discharge tip (6) near metal shell (2) end face one side is ground floor discharge tip (6), the number of the upper discharge tip (6) of each layer equates or the number of each layer discharge tip (6) increases progressively by the number of plies or the number of top discharge tip (6) is more than the number of ground floor discharge tip (6), and the length of described negative terminal (5) is stretched out the length of metal shell (2) end face more than or equal to central electrode (3).
4. utmost point laminar spark plug, comprise insulator (1), metal shell (2), central electrode (3) and discharge tip (6), stretch out outside the end face of metal shell (2) lower end of central electrode (3), it is characterized in that: described central electrode (3) stretches out the length of end face of metal shell (2) greater than five millimeters, the outside of described metal shell (2) end face is provided with one deck electrode body at least, described electrode body comprises two negative plates (7), connect two negative plates (7) negative terminal (5) and with the positive plate (4) of the corresponding setting of two negative plates (7), described negative terminal (5) is fixed on the end face of metal shell (2), described positive plate (4) is arranged on the central electrode (3), the upper correspondence of described positive plate (4) or negative plate (7) is provided with discharge tip (6), all leaves discharging gap between discharge tip (6) and negative plate (7) or the positive plate (4).
5. a kind of utmost point laminar spark plug according to claim 4, it is characterized in that: described electrode body is two layers, every one deck electrode body comprises two negative plates (7), be arranged at positive plate (4) and the negative terminal (5) that is connected two negative plates (7) between two negative plates (7), described negative terminal (5) is fixed on the end face of metal shell (2), electrode body near metal shell (2) end face one side is the ground floor electrode body, a negative plate (7) of ground floor electrode body is the end face of metal shell (2), it is negative plate (7) on front one deck electrode body that a negative plate (7) is arranged in two negative plates (7) in the later layer electrode body, positive plate (4) and negative plate (7) axially are provided with on the relative position and put a tip (6), all leave discharging gap between discharge tip (6) and negative plate (7) or the positive plate (4).
6. a kind of utmost point laminar spark plug according to claim 4, it is characterized in that: described electrode body is four layers, every one deck electrode body comprises two negative plates (7), respectively with two negative plates (7) setting, two positive plates (4) and the negative terminal (5) that is connected two negative plates (7) at grade, two negative plates (7) of every one deck electrode body are fixed on the negative terminal (5), described negative terminal (5) is fixed on the end face of metal shell (2), electrode body near metal shell (2) end face one side is the ground floor electrode body, it is negative plate (7) on front one deck electrode body that a negative plate (7) is arranged in two negative plates (7) in the later layer electrode body, be provided with on positive plate (4) position radially relative with negative plate (7) and put a tip (6), all leave discharging gap between discharge tip (6) and negative plate (7) or the positive plate (4).
7. a kind of utmost point laminar spark plug according to claim 4, it is characterized in that: the length that described central electrode (3) stretches out the end face of metal shell (2) is six millimeters to 15 millimeters.
8. according to claim 4 or 5 or 6 described a kind of utmost point laminar spark plugs, it is characterized in that: described negative plate (7) is annular or polygon, or cantilever-shaped, and described positive plate (4) is I-shaped or disc or polygon or cantilever-shaped.
9. according to claim 4 or 5 or 6 described a kind of utmost point laminar spark plugs, it is characterized in that: described electrode body has two layers at least, the number of the discharge tip on each layer electrode body (6) equate or each layer electrode body on the number of discharge tip (6) increase progressively by the number of plies or top electrode body on the number of discharge tip (6) more than the number of the discharge tip on the ground floor electrode body (6), the length of described negative terminal (5) is stretched out the length of metal shell (2) end face more than or equal to central electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272182 CN202651617U (en) | 2012-06-11 | 2012-06-11 | Pole layer type spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272182 CN202651617U (en) | 2012-06-11 | 2012-06-11 | Pole layer type spark plug |
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| Publication Number | Publication Date |
|---|---|
| CN202651617U true CN202651617U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272182 Expired - Fee Related CN202651617U (en) | 2012-06-11 | 2012-06-11 | Pole layer type spark plug |
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| CN (1) | CN202651617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105981243A (en) * | 2014-02-26 | 2016-09-28 | 通用汽车环球科技运作有限责任公司 | Plasma ignition device |
-
2012
- 2012-06-11 CN CN 201220272182 patent/CN202651617U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105981243A (en) * | 2014-02-26 | 2016-09-28 | 通用汽车环球科技运作有限责任公司 | Plasma ignition device |
| US9951743B2 (en) | 2014-02-26 | 2018-04-24 | GM Global Technology Operations LLC | Plasma ignition device |
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