CN204633129U - Series gap multiple spot discharge spark plug - Google Patents
Series gap multiple spot discharge spark plug Download PDFInfo
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- CN204633129U CN204633129U CN201520203441.1U CN201520203441U CN204633129U CN 204633129 U CN204633129 U CN 204633129U CN 201520203441 U CN201520203441 U CN 201520203441U CN 204633129 U CN204633129 U CN 204633129U
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- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model is a kind of discharge spark plug, particularly a kind of series gap multiple spot discharge spark plug, for spark-ignition engine.Comprise wiring screw rod, described wiring screw rod is placed in insulator, described insulator is riveted in housing, described insulator tip inside is provided with central electrode, built-in damping resistance is provided with between described central electrode and wiring screw rod, the bottom of described insulator is provided with the ceramic multiple spot discharge igniting platform matched with insulator, cavity components is formed between described ceramic multiple spot discharge igniting platform and insulator, outer wall and the housing of described ceramic multiple spot discharge igniting platform upper end are fastened, and the bottom of described ceramic multiple spot discharge igniting platform is provided with igniter electrode assembly.When series gap multiple spot discharge spark plug improves igniting, the temperature and pressure of gaseous mixture, makes flammability improve, and firing duration shortens, and improves engine performance.
Description
Technical field
The utility model is a kind of discharge spark plug, particularly a kind of series gap multiple spot discharge spark plug, for spark-ignition engine.
Background technology
At present with gasoline, combustion gas, alcohols etc. are that the most spark plugs used in the spark-ignition engine of fuel generally comprise, insulator, housing seal packing ring, wiring nut etc., in insulator, central electrode is set, built-in damping resistance, is connected the positive pole as igniting with wiring screw rod through high intermediate temperature sealing, housing is welded with the lateral electrode of nickel alloy material, as earth polar after installing with engine, central electrode and lateral electrode are formed and hook shape arcing gap, work as engine igniting time, under the instruction of engine management system (ECU), control high-voltage ignition coil produce high voltage pulse electric energy, through high-voltage conducting wires to spark plug wiring screw rod (free-standing high voltage coil is directly added in high-voltage positive electrode in wiring screw rod), the gap of high voltage pulse between lateral electrode and central electrode produces high-voltage breakdown electric spark, and then the mist of initiating compression, the gaseous mixture expansion of detonation promotes piston makes engine do work.
From the automotive practical history of novel existing more than 120 year till now, the citation form of spark plug is without any change.Due to the restriction of spark plug configuration and the development restriction of traditional processing technology, up to the present, which kind of high-tech spark plug to comprise the spark plug of many lateral electrodes regardless of, a point of discharge can only be produced when real work to the gaseous mixture that ignites.All spark plug technology differences have just been done some and have been improved on firing tip material and on sparking tip structure, just extend working life order.Even if there is the so-called technical characterstic that can improve ignition performance, also just compares comparatively speaking with traditional ordinary electrode spark plug, there is no the difference of technological essence.Because spark plug can not produce any energy, the high-pressure energy of igniting is provided by the high-tension coil of conputer controlled, and so-called high-energy sparking plug is non-existent.Up to the present, automobile industry there is no any enterprises and individuals can provide one advanced in theory, practicable can separated by a distance interior while multi-point spark spark plug.
Due to the reason on center electrode structure in conventional ignition plug insulator, the core insulator stretching into cylinder firings is skirt section bump contact high-temperature combustion gas heat absorption, heat radiation is that in dependence insulator back segment, gasket seal is with the small size thermal contact conductance of housing, and the engine thus required for difference has the spark plug of different calorific value design.Just because of the restriction of this central electrode extended structure, what the heat dispersion of conventional ignition plug had become spark plug is difficult to technology barrier perfect further.The data of engine torque and horsepower test display can reflect that the Power output of any engine can decline to during certain rotating speed, and can not a linearity rise, both fuel oil increased, power dropping, its basic reason be exactly spark plug rejected heat to limiting value, cause engine pre-ignition and cause power dropping.Just because of central electrode and the lateral electrode ignition structure of conventional ignition plug, dynamic characteristic is non-linear is unsurmountable technology barrier.
Modern Engine technological development direction concentrates on the strict demand paying close attention to combustion powered economy and environment protection emission, people are to engine ignition Theory of Combustion and put into practice the research having carried out a large amount of, particularly in combustion mode, sparking mode, and relation each other and to engine power performance and oil consumption, the rule of discharge has carried out the research of new aspect.Spark-discharge ignition mechanism is divided into three processes: be high-voltage breakdown respectively, arc discharge and glow discharge three phases; As shown in the figure, the spark plug actual time that only work is extremely short, but conclusive effect is played to the burning of engine.
Utility model content
The utility model mainly solves the deficiencies in the prior art, compact conformation, there is provided a kind of multiple spot to ignite mist simultaneously, make the igniter that complete burning time shortens, do not change the series gap multiple spot discharge spark plug improving the most effective way of engine power performance under miscellaneous part prerequisite.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of series gap multiple spot discharge spark plug, comprise wiring screw rod, described wiring screw rod is placed in insulator, described insulator is riveted in housing, described insulator tip inside is provided with central electrode, built-in damping resistance is provided with between described central electrode and wiring screw rod, the bottom of described insulator is provided with the ceramic multiple spot discharge igniting platform matched with insulator, cavity components is formed between described ceramic multiple spot discharge igniting platform and insulator, outer wall and the housing of described ceramic multiple spot discharge igniting platform upper end are fastened, the bottom of described ceramic multiple spot discharge igniting platform is provided with igniter electrode assembly,
Described cavity components comprises positive extra-high voltage connection chamber body, the bottom of described insulator extends in ceramic multiple spot discharge igniting platform, described positive extra-high voltage connection chamber body is located between the bottom of insulator and ceramic multiple spot discharge igniting platform, insulator is extended in the bottom of described central electrode, the bottom of described positive extra-high voltage connection chamber body be provided with central electrode bottom matched positive pole high-field electrode line, described positive pole high-field electrode line is located in ceramic multiple spot discharge igniting platform;
Or, described positive extra-high voltage connection chamber body assembly comprises labyrinth type positive extra-high voltage connection chamber body and labyrinth type positive pole high-field electrode line, the bottom of described insulator extends in ceramic multiple spot discharge igniting platform, described labyrinth type positive extra-high voltage connection chamber body is located between the bottom of insulator and ceramic multiple spot discharge igniting platform, the centre bit of described labyrinth type positive extra-high voltage connection chamber body is provided with boss, described boss extends the bottom of insulator, described labyrinth type positive pole high-field electrode line is located at the centre bit of boss, matched bottom described labyrinth type positive pole high-field electrode line and central electrode, described labyrinth type positive pole high-field electrode line is located in ceramic multiple spot discharge igniting platform, described boss is integrated distribution with ceramic multiple spot discharge igniting platform,
Described igniter electrode assembly comprises with a grounding electrode with an anode electrode, described anode electrode is connected with positive pole high-field electrode line or labyrinth type positive pole high-field electrode line, form discharge igniting gap between grounding electrode and anode electrode, grounding electrode is connected respectively by built-in electrode line with anode electrode;
Or, described igniter electrode assembly comprises with an anode electrode I, at least one cross-over electrode and grounding electrode I, described anode electrode I is connected with positive pole high-field electrode line or labyrinth type positive pole high-field electrode line, anode electrode I is connected respectively by built-in electrode line I with cross-over electrode, forms discharge igniting gap I respectively between anode electrode I and cross-over electrode, between grounding electrode I and cross-over electrode;
Described grounding electrode touches with housing respectively mutually with grounding electrode I;
Described grounding electrode, anode electrode, anode electrode I, cross-over electrode and grounding electrode I are respectively the upright electrode of needle-like;
Described built-in electrode line and built-in electrode line I are placed in ceramic multiple spot discharge igniting platform.
As preferably, the middle-end cover of described housing exterior walls has external seal pad, gasket seal in being formed between described insulator and housing, described interior gasket seal is skewed distribution, form side between the outer wall of described ceramic multiple spot discharge igniting platform upper end and housing to dispel the heat contact-making surface, forming the end between described ceramic multiple spot discharge igniting platform and the bottom of housing dispels the heat contact-making surface, is provided with flexible sealing gasket between the top of described ceramic multiple spot discharge igniting platform and housing.
As preferably, the outer wall of described ceramic multiple spot discharge igniting platform lower end is provided with equally distributed creepage umbrella rib, and described ceramic multiple spot discharge igniting platform lower end is cylindric or taper,
As preferably, described cross-over electrode is arc-shaped distribution, spacing between described discharge igniting gap, the spacing in discharge igniting gap I are respectively 0.3-5.0mm, described built-in electrode line is integrated distribution with positive pole high-field electrode line or labyrinth type positive pole high-field electrode line, and described built-in electrode line I is integrated distribution with positive pole high-field electrode line or labyrinth type positive pole high-field electrode line.
As preferably, described cross-over electrode has two, and discharge igniting gap I is located between adjacent cross-over electrode.
Igniter electrode assembly and ceramic post sintering are integrally formed ceramic multiple spot discharge igniting platform, are the core contents of this patent.
For preventing high pressure from revealing, positive extra-high voltage connection chamber body can be set to the maze-type structure increasing creepage distance.
By shortening burning time, improving engine combustion speed, and then reaching energy-conservation, reduce the discharge of harmful substance, ensure igniting reliability and promote the engine technology Further aim such as power.
Engine combustion theory and practice is verified, in engine ignition moment, from the discharge mist that ignites need certain hour to complete detonation acting, in the mist space of compression, space is larger, the time that burning needs completely is longer, current technology is reduce cylinder diameter and is that the degree of advance of control engine ignition is to make to be in a certain desirable moment (general control is crossing the 10-15 degree of top dead-centre) that after top dead center crossed by engine piston complete burning time, fuel is done work completely, if the complete burning time of short engine mist can be inside contracted at controlled area charactert, just ignition advance angle can be reduced, fuel detonation is increased, moment that makes effectively to do work controls in ideal range.If under having multiple spot to produce the flame kernel situation of multiple limited distance in combustion chamber simultaneously, can reach and shorten complete burning time, increase the deflagrability of engine, thus the outburst dynamic property making the moment of engine controlled get a promotion.Thus, when other technologies develop into ultimate attainment, increase ignition point in cylinder, effective shortening complete burning time, improve the deflagrability of compressed mixed gas in cylinder, do not changing the burn rate improving engine in other part situations, one has revolutionary progress beyond doubt.
Be provided with igniter electrode assembly in pottery multiple spot discharge igniting platform, adopt co-fired ceramic technology to become to be integrated, the multipair ignitor of disposed standing upright, between electrode, serial communication forms electrion loop, and the gap between each pair of electrode can realize Multipoint synchronous discharge igniting.
The igniting platform area of the bottom of insulator is less, and in the igniting of platform end face, the flame that electrion produces multiple spot endorses into semi-cylindrical expansion; The ignition speed of initial flame core is obviously greater than the conventional ignition plug of single-point discharge type, and burning extent shortens, and complete burning time shortens; Both shortened the time producing maximum pressure in cylinder, this is the direct gain to engine power performance.
The multipair sparking electrode uprightly be arranged in parallel, creeping discharge mode between electrode, can puncture compression gaseous mixture at lower voltages, and reinforced high pressure punctures ignition and excites thermionic current participation combustion-supporting instantaneously.
Long apart from unobstructed discharging gap, contribute to the formation of flame core, not easily by cooling of electrode flame arrest; Improve initial ignition speed, improve and light rate.
This structure is conducive to eliminating carbon distribution factor, ensures the igniting reliability under different working condition.
Dispel the heat contact-making surface in dispel the heat contact-making surface and the end, side between pottery multiple spot discharge igniting platform and housing, employing welding connecting mode, has good conductive structure, more can ensure the sealing property of spark plug.
Calorific value concept is crossed in effective thermal design, highly versatile.
Micro-loss noble metal sparking electrode has the useful life of endless.
In extremely limited space, utilize the difference of spark plug cross dimensions, the ignitor of each one or more pairs of series connection is set at igniting end face, form at least two synchronous discharge gaps, realize multiple spot simultaneously (speed of electricity is far away higher than the burning rate of flame) igniting at engine high pressure time of ignition to ignite the mist of diverse location of range difference, make multi-point combustion core spread common factor rapidly, reach the object shortening engine total complete burning time.
Pottery multiple spot discharge igniting platform is made by high-performance aluminium oxide or silicon nitride ceramics, the core content of this patent is exactly arrange the high temperature resistant of multipair upright placement and the sparking electrode of mutually insulated in ceramic multiple spot discharge igniting platform, each electrode is communicated with by high-temperature alloy conductive lead wire, built-in electrode line and built-in electrode line I are respectively high-temperature alloy conductive lead wire, or employing printing brushing technique produces the conductive connecting line structure between electrode.Series connection high temperature alloy between sparking electrode, electrode goes between, use co-fired ceramic technology burn-back integral, thus efficiently solves the High-Voltage Insulation problem between structure, intensity, sealing, resistance to gentle electrode, ensure that the reliability of product work.Ignition platform is with arranging auxiliary seal step in housing, between lay flexible conduction heat sealable pad, for ignition platform mechanical type connected mode provides buffering and auxiliary seal, ignition platform and housing have larger heat-conducting area directly and housing close contact after installing sealing, greatly add the heat sinking function of ceramic ignition platform.The ground of the grounding electrode exposed extremely goes between and to be communicated with housing end face by welding or crimping, and forms the earth electrode of tandem high pressure ignition circuit.
Be upright parallel creeping discharge structure between the noble metal electrode of pottery multiple spot discharge igniting platform each pair of upper surface, discharging gap between each pair of ignitor elongates two to three times (according to different point of discharge setup parameters) of ordinary construction spark plug, the flame karyomorphism of longitudinal cross-section can be made to become semicircle column type rapid diffusion (conventional ignition plug is that single-point presses down diffusion by spherical powered extreme pressure), because be unidirectional open igniting, flame core ignite and be not subject in diffusion process spark plug configuration impact (and conventional ignition plug the flame karyogenesis initial stage be very easily subject to lateral electrode with the stop of central electrode and the impact of electrode temperature and structure, owing to being easily subject to the effect of electrode temperature flame arrest, the defect (duty ratio is high) of cold run can be produced in the ignition stage of Theory of Combustion.Porcelain ignition platform cylindrical has the insulation fusiform structure preventing electrode and the creepage increase creepage distance of housing, guarantees that electrion is limited between each pair of electrode and occurs.The tie point of central electrode is provided with labyrinth type isolation structure, prevents pulse firing high-pressure leakage.
This structure adopts surface breakdown discharge type to discharge ignition energy, and namely electric discharge is that insulator surface centrally between electrode and lateral electrode carries out, due to the central electrode of conventional ignition plug and the hook formation arcing distance of lateral electrode short, arcing poor performance.Because the size of ignition gap, by the restriction of supply voltage, is generally about 0.6 ~ 1.3mm.Shorter arcing distance makes initial spark " growth " be not required flame kernel fully, and electric spark heat is also more absorbed cooling by lateral electrode and central electrode, reduces the energy of electric spark, there is the hidden danger of cold run; If increasing ignition gap, then need to improve ignition voltage, due to spark plug configuration, voltage raising very easily causes internal breakdown or causes " catching fire ", and this is a pair unsurmountable contradiction of conventional ignition plug.Creeping discharge betides ceramic insulator surface between often pair of upright electrode and the interface of gaseous mixture, under the excitation of high voltage electric field, ceramic surface electric field generation distortion can increase local electric field strength, local is caused first to be discharged, impel further developing of electric discharge thus, until whole electrode gap punctures.This discharge mechanism makes to reduce many along gap, face than the puncture voltage of same width air gap.If under same breakdown voltage, longer than the arcing distance of air gap along gap, face.Longer arcing distance can improve the energy of spark greatly.Because sparkover is made up of very different 2 parts of energy density, i.e. capacitor discharge part and inductive discharge part.The former has high-energy-density, and voltage is high, can release in very short time; The latter's energy density is little, but works in the long period.Can find out that the energy of inductive part is 20 ~ 30 times of capacitive part from electric spark Energy distribution, fiery core be formed to circumference gaseous mixture and plays a major role.The inductive part duration, longer ignition success rate was better.Lengthen arcing distance will reduce " the flame arrest effect " of lateral electrode.Electric spark to burnout greasy dirt carbon deposit along insulator surface, avoids the bridging between electrode, also to avoid between insulator and housing, because attachment combustion deposit causes the phenomenon of current leakage, ensureing the igniting reliability under idling operation.
Be proven, engine, under optimum igniting condition, generally only needs 0.2mJ ignition energy to get final product successful ignition, and to denseer and comparatively lean mixture, ignition energy also only needs 3mJ.Due to the inhomogeneities of gas in the jar and the existence of turbulent flow, in order to ensure that engine can be lighted a fire successfully under various operating mode, the actual ignition energy being applied to the ignition coil of engine is generally 30 ~ 50Mj.In 1, all energy fact proved that raising ignition energy also can not improve the efficiency of engine in abrupt release, just improve igniting reliability, the raising of engine kinetic energy is determined by the burn rate of mist, the efficiency of mixture combustion depends primarily on concentration, temperature, the pressure of gaseous mixture, and gaseous mixture flow-disturbing speed in cylinder, have nothing to do with ignition energy size, but have direct association with ignition location with the development speed of flame core, this structure utilizes modern
automotive ignition systemthe feature of high-energy ignition coil, more contribute to the uniform release of ignition ability, first arcing gap and the second arcing gap or third space can mean allocation ignition energies, make the energy of ignition coil surplus ensure ignition success rate, the ignition point of diverse location can improve the burn rate of engine really again.
Therefore, the series gap multiple spot discharge spark plug that the utility model provides, improves the temperature and pressure of gaseous mixture during igniting, flammability is improved, and complete firing duration shortens, and improves engine
power usefulness.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the polycrystalline substance schematic diagram of Fig. 1;
Fig. 3 is the location map of single-point creeping discharge ignitor in the utility model;
Fig. 4 is the location map of 2 creeping discharge ignitors in the utility model;
Fig. 5 is the location map of 3 creeping discharge ignitors in the utility model;
Fig. 6 is the structural representation of the utility model standard type;
Fig. 7 is the structural representation of the utility model riveted type;
Fig. 8 is the structural representation of the utility model quick heat radiating type.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6 and Fig. 7, a kind of series gap multiple spot discharge spark plug, comprise wiring screw rod 1, described wiring screw rod 1 is placed in insulator 2, described insulator 2 is riveted in housing 3, described insulator 2 taper inner is provided with central electrode 4, built-in damping resistance 5 is provided with between described central electrode 4 and wiring screw rod 1, the bottom of described insulator 2 is provided with the ceramic multiple spot discharge igniting platform 6 matched with insulator 2, cavity components is formed between described ceramic multiple spot discharge igniting platform 6 and insulator 2, outer wall and the housing 3 of described ceramic multiple spot discharge igniting platform 6 upper end are fastened, the bottom of described ceramic multiple spot discharge igniting platform 6 is provided with igniter electrode assembly,
Described cavity components comprises positive extra-high voltage connection chamber body 7, the bottom of described insulator 2 extends in ceramic multiple spot discharge igniting platform 6, described positive extra-high voltage connection chamber body 7 is located between the bottom of insulator 2 and ceramic multiple spot discharge igniting platform 6, insulator 2 is extended in the bottom of described central electrode 4, the bottom of described positive extra-high voltage connection chamber body 7 be provided with central electrode 4 bottom matched positive pole high-field electrode line 8, described positive pole high-field electrode line 8 is located in ceramic multiple spot discharge igniting platform 6;
Or, described positive extra-high voltage connection chamber body assembly comprises labyrinth type positive extra-high voltage connection chamber body 9 and labyrinth type positive pole high-field electrode line 10, the bottom of described insulator 2 extends in ceramic multiple spot discharge igniting platform 6, described labyrinth type positive extra-high voltage connection chamber body 7 is located between the bottom of insulator 2 and ceramic multiple spot discharge igniting platform 6, the centre bit of described labyrinth type positive extra-high voltage connection chamber body 9 is provided with boss 11, described boss 11 extends the bottom of insulator 2, described labyrinth type positive pole high-field electrode line 10 is located at the centre bit of boss 11, matched bottom described labyrinth type positive pole high-field electrode line 10 and central electrode 4, described labyrinth type positive pole high-field electrode line 10 is located in ceramic multiple spot discharge igniting platform 6, described boss 11 distributes in integrated with ceramic multiple spot discharge igniting platform 6,
Described igniter electrode assembly comprises with a grounding electrode 13 with an anode electrode 15, described anode electrode 15 is connected with positive pole high-field electrode line 8 or labyrinth type positive pole high-field electrode line 10, form discharge igniting gap 16 between grounding electrode 13 and anode electrode 15, grounding electrode 13 is connected respectively by built-in electrode line 17 with anode electrode 15;
Or, described igniter electrode assembly comprises with an anode electrode I 19, at least one cross-over electrode 20 and grounding electrode I 21, described anode electrode I 19 is connected with positive pole high-field electrode line 8 or labyrinth type positive pole high-field electrode line 10, anode electrode I 19 is connected respectively by built-in electrode line I 22 with cross-over electrode 20, forms discharge igniting gap I 23 respectively between anode electrode I 19 and cross-over electrode 20, between grounding electrode I 21 and cross-over electrode 20;
Described grounding electrode 13 touches with housing respectively mutually with grounding electrode I 21;
Described built-in electrode line 17 is placed in ceramic multiple spot discharge igniting platform 6 with built-in electrode line I 22.
The middle-end cover of described housing 3 outer wall has external seal pad 24, gasket seal 25 in being formed between described insulator 2 and housing 3, described interior gasket seal 25 is in skewed distribution, form side between the outer wall of described ceramic multiple spot discharge igniting platform 6 upper end and housing 3 to dispel the heat contact-making surface 26, forming the end between described ceramic multiple spot discharge igniting platform 6 and the bottom of housing 3 dispels the heat contact-making surface 27, is provided with flexible sealing gasket 28 between the top of described ceramic multiple spot discharge igniting platform 6 and housing 3.
The outer wall of described ceramic multiple spot discharge igniting platform 6 lower end is provided with equally distributed creepage umbrella rib (29), and described ceramic multiple spot discharge igniting platform 6 lower end is cylindric or taper,
The distribution in arc-shaped of described cross-over electrode 20, spacing between described discharge igniting gap 16, the spacing in discharge igniting gap I 23 are respectively 0.3-5.0mm, described built-in electrode line 17 distributes in integrated with positive pole high-field electrode line 8 or labyrinth type positive pole high-field electrode line 10, and described built-in electrode line I 22 distributes in integrated with positive pole high-field electrode line 8 or labyrinth type positive pole high-field electrode line 10.
Described cross-over electrode 20 has two, and discharge igniting gap I 23 is located between adjacent cross-over electrode 30.
Claims (5)
1. a series gap multiple spot discharge spark plug, it is characterized in that: comprise wiring screw rod (1), described wiring screw rod (1) is placed in insulator (2), described insulator (2) is riveted in housing (3), described insulator (2) taper inner is provided with central electrode (4), built-in damping resistance (5) is provided with between described central electrode (4) and wiring screw rod (1), the bottom of described insulator (2) is provided with the ceramic multiple spot discharge igniting platform (6) matched with insulator (2), cavity components is formed between described ceramic multiple spot discharge igniting platform (6) and insulator (2), outer wall and the housing (3) of described ceramic multiple spot discharge igniting platform (6) upper end are fastened, the bottom of described ceramic multiple spot discharge igniting platform (6) is provided with igniter electrode assembly,
Described cavity components comprises positive extra-high voltage connection chamber body (7), the bottom of described insulator (2) extends in ceramic multiple spot discharge igniting platform (6), described positive extra-high voltage connection chamber body (7) is located between the bottom of insulator (2) and ceramic multiple spot discharge igniting platform (6), insulator (2) is extended in the bottom of described central electrode (4), the bottom of described positive extra-high voltage connection chamber body (7) is provided with the positive pole high-field electrode line (8) matched with central electrode (4) bottom, described positive pole high-field electrode line (8) is located in ceramic multiple spot discharge igniting platform (6),
Or, described positive extra-high voltage connection chamber body assembly comprises labyrinth type positive extra-high voltage connection chamber body (9) and labyrinth type positive pole high-field electrode line (10), the bottom of described insulator (2) extends in ceramic multiple spot discharge igniting platform (6), described labyrinth type positive extra-high voltage connection chamber body (7) is located between the bottom of insulator (2) and ceramic multiple spot discharge igniting platform (6), the centre bit of described labyrinth type positive extra-high voltage connection chamber body (9) is provided with boss (11), described boss (11) extends the bottom of insulator (2), described labyrinth type positive pole high-field electrode line (10) is located at the centre bit of boss (11), described labyrinth type positive pole high-field electrode line (10) is matched with central electrode (4) bottom, described labyrinth type positive pole high-field electrode line (10) is located in ceramic multiple spot discharge igniting platform (6), described boss (11) distributes in integrated with ceramic multiple spot discharge igniting platform (6),
Described igniter electrode assembly comprises with a grounding electrode (13) with an anode electrode (15), described anode electrode (15) is connected with positive pole high-field electrode line (8) or labyrinth type positive pole high-field electrode line (10), form discharge igniting gap (16) between grounding electrode (13) and anode electrode (15), grounding electrode (13) is connected respectively by built-in electrode line (17) with anode electrode (15);
Or, described igniter electrode assembly comprises with an anode electrode I (19), at least one cross-over electrode (20) and grounding electrode I (21), described anode electrode I (19) is connected with positive pole high-field electrode line (8) or labyrinth type positive pole high-field electrode line (10), anode electrode I (19) is connected respectively by built-in electrode line I (22) with cross-over electrode (20), forms discharge igniting gap I (23) respectively between anode electrode I (19) and cross-over electrode (20), between grounding electrode I (21) and cross-over electrode (20);
Described grounding electrode (13) touches with housing respectively mutually with grounding electrode I (21);
Described built-in electrode line (17) and built-in electrode line I (22) are placed in ceramic multiple spot discharge igniting platform (6).
2. series gap multiple spot discharge spark plug according to claim 1, it is characterized in that: the middle-end cover of described housing (3) outer wall has external seal pad (24), gasket seal (25) in being formed between described insulator (2) and housing (3), described interior gasket seal (25) is in skewed distribution, form side between the outer wall of described ceramic multiple spot discharge igniting platform (6) upper end and housing (3) to dispel the heat contact-making surface (26), forming the end between described ceramic multiple spot discharge igniting platform (6) and the bottom of housing (3) dispels the heat contact-making surface (27), flexible sealing gasket (28) is provided with between the top of described ceramic multiple spot discharge igniting platform (6) and housing (3).
3. series gap multiple spot discharge spark plug according to claim 1 and 2, it is characterized in that: the outer wall of described ceramic multiple spot discharge igniting platform (6) lower end is provided with equally distributed creepage umbrella rib (29), described ceramic multiple spot discharge igniting platform (6) lower end is cylindric or taper.
4. series gap multiple spot discharge spark plug according to claim 1 and 2, it is characterized in that: described cross-over electrode (20) distributes in arc-shaped, spacing between described discharge igniting gap (16), the spacing in discharge igniting gap I (23) is respectively 0.3-5.0mm, described built-in electrode line (17) distributes in integrated with positive pole high-field electrode line (8) or labyrinth type positive pole high-field electrode line (10), described built-in electrode line I (22) distributes in integrated with positive pole high-field electrode line (8) or labyrinth type positive pole high-field electrode line (10).
5. series gap multiple spot discharge spark plug according to claim 1 and 2, is characterized in that: described cross-over electrode (20) has two, and discharge igniting gap I (23) is located between adjacent cross-over electrode (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203441.1U CN204633129U (en) | 2015-04-07 | 2015-04-07 | Series gap multiple spot discharge spark plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203441.1U CN204633129U (en) | 2015-04-07 | 2015-04-07 | Series gap multiple spot discharge spark plug |
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| Publication Number | Publication Date |
|---|---|
| CN204633129U true CN204633129U (en) | 2015-09-09 |
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| CN201520203441.1U Expired - Fee Related CN204633129U (en) | 2015-04-07 | 2015-04-07 | Series gap multiple spot discharge spark plug |
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| CN (1) | CN204633129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752957A (en) * | 2015-04-07 | 2015-07-01 | 杭州普隆格科技有限公司 | Series clearance multi-point discharging sparking plug |
| CN111999428A (en) * | 2020-08-20 | 2020-11-27 | 清华大学 | Constant volume combustion bomb for measuring turbulent flame propagation speed of liquid fuel |
| CN115163310A (en) * | 2022-07-21 | 2022-10-11 | 华能国际电力股份有限公司 | Gas turbine ignition device with active control function |
-
2015
- 2015-04-07 CN CN201520203441.1U patent/CN204633129U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752957A (en) * | 2015-04-07 | 2015-07-01 | 杭州普隆格科技有限公司 | Series clearance multi-point discharging sparking plug |
| WO2016161817A1 (en) * | 2015-04-07 | 2016-10-13 | 杭州普隆格科技有限公司 | Series clearance multi-point discharging sparking plug |
| CN111999428A (en) * | 2020-08-20 | 2020-11-27 | 清华大学 | Constant volume combustion bomb for measuring turbulent flame propagation speed of liquid fuel |
| CN115163310A (en) * | 2022-07-21 | 2022-10-11 | 华能国际电力股份有限公司 | Gas turbine ignition device with active control function |
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Granted publication date: 20150909 Termination date: 20170407 |