WO2013035880A1 - 高周波放射用プラグ - Google Patents
高周波放射用プラグ Download PDFInfo
- Publication number
- WO2013035880A1 WO2013035880A1 PCT/JP2012/073104 JP2012073104W WO2013035880A1 WO 2013035880 A1 WO2013035880 A1 WO 2013035880A1 JP 2012073104 W JP2012073104 W JP 2012073104W WO 2013035880 A1 WO2013035880 A1 WO 2013035880A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductor
- radiation
- casing
- plug
- antenna
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
- F02P23/045—Other physical ignition means, e.g. using laser rays using electromagnetic microwaves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/50—Sparking plugs having means for ionisation of gap
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/04—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits one of the spark electrodes being mounted on the engine working piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
- F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
- F02P9/007—Control of spark intensity, intensifying, lengthening, suppression by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/40—Sparking plugs structurally combined with other devices
- H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
- H05H1/461—Microwave discharges
- H05H1/463—Microwave discharges using antennas or applicators
Definitions
- the present invention relates to a high-frequency radiation plug in which a radiation antenna is provided at one end of a casing.
- Japanese Patent Laid-Open No. 58-213120 discloses a glow plug attached to a diesel engine as this type of high-frequency radiation plug.
- a glow plug described in Japanese Patent Application Laid-Open No. 58-213120 includes a tubular outer conductor, an inner conductor passing through the axis of the outer conductor, a resistance wire substantially integrally connected to the outer conductor and the inner conductor, respectively. And a dielectric filled between the outer conductor and the inner conductor.
- a screw to be attached to the cylinder head is formed on the outer peripheral portion of the outer conductor.
- the resistance wire protrudes into the combustion chamber and is formed on the loop antenna to perform microwave oscillation.
- the casing is used as the outer conductor of the transmission line. Therefore, when a current flows through an object to which the high frequency radiation plug is attached, the current may become high frequency noise radiated from the radiation antenna.
- the grounding conductor of the spark plug is electrically connected to the cylinder head of the internal combustion engine. Therefore, a current flows through the cylinder head with the spark discharge, and the current may become high-frequency noise radiated from the radiation antenna through the casing.
- the present invention has been made in view of such a point, and an object thereof is to suppress high-frequency noise radiated from a radiation antenna in a high-frequency radiation plug in which a radiation antenna is provided at one end of a casing.
- 1st invention is comprised with the transmission line which transmits electromagnetic waves, the radiation antenna for radiating the electromagnetic waves supplied via the said transmission line, and a cylindrical conductor, and the said radiation antenna is provided in one end
- a high-frequency radiation plug including a casing for accommodating the transmission line extending from the radiation antenna to the other end side, wherein a central conductor electrically connected to the radiation antenna is spaced apart from the central conductor in the casing.
- An outer conductor surrounding the central conductor is embedded in an insulator to form the transmission line, and the outer conductor is provided in a non-contact manner on the casing.
- the outer conductor of the transmission line is provided in contact with the casing.
- the outer conductor does not conduct to an object to which the high-frequency radiation plug is attached through a casing made of the conductor.
- the insulator of the transmission line includes a plate-like conductor having a larger area than the end surface of the outer conductor on the radiation antenna side, and the radiation antenna and the outer conductor. In between, the outer conductor and the casing are embedded in the center conductor without contact.
- the plate conductor is embedded between the radiation antenna and the outer conductor in the transmission line insulator.
- the plate-like conductor has a larger area than the end face of the outer conductor on the side of the radiation antenna, and promotes the radiation of electromagnetic waves in the radiation antenna.
- the plate-like conductor is embedded in the insulator so as not to contact the central conductor without conducting the outer conductor and the casing.
- the plate-like conductor is formed in a ring shape or a C-shape, and is embedded in the insulator so as to surround the center conductor.
- a ring-shaped or C-shaped plate-like conductor is embedded in the insulator so as to surround the central conductor.
- the outer conductor of the transmission line since the outer conductor of the transmission line is not in contact with the casing in the high-frequency radiation plug, the outer conductor does not conduct to the object to which the high-frequency radiation plug is attached via the casing. Therefore, even if a current flows through the object to which the high frequency radiation plug is attached, the current is not transmitted to the outer conductor via the casing. Therefore, it is suppressed that the electric current which flows into a target object turns into the high frequency noise radiated
- FIG. 1 is a longitudinal sectional view of an internal combustion engine according to an embodiment. It is a front view of the ceiling surface of the combustion chamber of the internal combustion engine which concerns on embodiment. It is a block diagram of the ignition device and electromagnetic wave radiation device concerning an embodiment. It is a longitudinal cross-sectional view of the plug for high frequency radiation which concerns on embodiment. It is a longitudinal cross-sectional view of the plug for high frequency radiation which concerns on the modification of embodiment. It is a longitudinal cross-sectional view of another form of the plug for high frequency radiation which concerns on the modification of embodiment.
- the present embodiment is an internal combustion engine 10 according to the present invention.
- the internal combustion engine 10 is a reciprocating type internal combustion engine in which a piston 23 reciprocates.
- the internal combustion engine 10 includes an internal combustion engine body 11, an ignition device 12, an electromagnetic wave emission device 13, and a control device 35. In the internal combustion engine 10, a combustion cycle in which the air-fuel mixture is ignited by the ignition device 12 and the air-fuel mixture is combusted is repeatedly performed.
- -Internal combustion engine body
- the internal combustion engine main body 11 includes a cylinder block 21, a cylinder head 22, and a piston 23 as shown in FIG.
- a plurality of cylinders 24 having a circular cross section are formed in the cylinder block 21.
- a piston 23 is provided in each cylinder 24 so as to reciprocate.
- the piston 23 is connected to the crankshaft via a connecting rod (not shown).
- the crankshaft is rotatably supported by the cylinder block 21.
- the cylinder head 22 is placed on the cylinder block 21 with the gasket 18 in between.
- the cylinder head 22, together with the cylinder 24, the piston 23, and the gasket 18, constitutes a partition member that partitions the combustion chamber 20 having a circular cross section.
- the diameter of the combustion chamber 20 is, for example, about half the wavelength of the microwave that the electromagnetic wave emission device 13 radiates to the combustion chamber 20.
- the cylinder head 22 is provided with one spark plug 40 that constitutes a part of the ignition device 12 for each cylinder 24.
- the tip exposed to the combustion chamber 20 is positioned at the center of the ceiling surface 51 of the combustion chamber 20 (the surface exposed to the combustion chamber 20 in the cylinder head 22).
- the outer periphery of the distal end portion of the spark plug 40 is circular as viewed from the axial direction.
- a center electrode 40 a and a ground electrode 40 b are provided at the tip of the spark plug 40.
- a discharge gap is formed between the tip of the center electrode 40a and the tip of the ground electrode 40b.
- An intake port 25 and an exhaust port 26 are formed in the cylinder head 22 for each cylinder 24.
- the intake port 25 is provided with an intake valve 27 that opens and closes an intake side opening 25a of the intake port 25, and an injector 29 that injects fuel.
- the exhaust port 26 is provided with an exhaust valve 28 for opening and closing the exhaust side opening 26 a of the exhaust port 26.
- each ignition device 12 is provided for each combustion chamber 20. As shown in FIG. 3, each ignition device 12 includes an ignition coil 14 that outputs a high voltage pulse, and an ignition plug 40 that is supplied with the high voltage pulse output from the ignition coil 14.
- the ignition coil 14 is connected to a DC power source (not shown).
- the ignition coil 14 boosts the voltage applied from the DC power supply, and outputs the boosted high voltage pulse to the center electrode 40 a of the spark plug 40.
- the spark plug 40 when a high voltage pulse is applied to the center electrode 40a, dielectric breakdown occurs in the discharge gap and spark discharge occurs. A discharge plasma is generated in the discharge path of the spark discharge. A negative voltage is applied to the center electrode 40a as a high voltage pulse.
- the ignition device 12 may include a plasma expansion unit that supplies electric energy to the discharge plasma to expand the discharge plasma.
- a plasma expansion part expands a spark discharge by supplying high frequency (for example, microwave) energy to discharge plasma, for example. According to the plasma expansion part, it is possible to improve the stability of ignition with respect to a lean air-fuel mixture.
- the electromagnetic wave emission device 13 may be used as the plasma expansion unit.
- the electromagnetic wave radiation device 13 includes an electromagnetic wave generator 31, an electromagnetic wave switch 32, and a high frequency radiation plug 34.
- the electromagnetic wave radiation device 13 one electromagnetic wave generator 31 and one electromagnetic wave switch 32 are provided, and a high frequency radiation plug 34 is provided for each combustion chamber 20.
- the electromagnetic wave generator 31 When receiving the electromagnetic wave drive signal (pulse signal) from the control device 35, the electromagnetic wave generator 31 continuously outputs the microwave over the time of the pulse width of the electromagnetic wave drive signal.
- a semiconductor oscillator generates microwaves.
- another oscillator such as a magnetron may be used.
- the electromagnetic wave switch 32 includes one input terminal and a plurality of output terminals provided for each high-frequency radiation plug 34.
- the input terminal is electrically connected to the electromagnetic wave generator 31.
- Each output terminal is electrically connected to the input terminal of the corresponding high-frequency radiation plug 34.
- the electromagnetic wave switch 32 is controlled by the control device 35 and sequentially switches the supply destination of the microwaves output from the electromagnetic wave generator 31 between the plurality of high-frequency radiation plugs 34.
- the high-frequency radiation plug 34 is formed in a substantially cylindrical shape as a whole.
- the high-frequency radiation plug 34 includes a ceramic structure 36 in which a conductor is embedded in a ceramic 63 (electrical insulator), and a casing 37 that houses the ceramic structure 36.
- the ceramic structure 36 is formed in a cylindrical shape.
- the ceramic structure 36 includes a transmission unit 38 provided with a microwave transmission line 60 and a radiation unit 39 provided with the radiation antenna 16.
- the transmission unit 38 and the radiation unit 39 are integrated.
- the transmission part 38 occupies most.
- one end portion constitutes a radiating portion 39 and the remaining portion constitutes a transmission portion 38.
- a center conductor 61 and an outer conductor 62 constituting a microwave transmission line 60 are embedded in a ceramic 63.
- the center conductor 61 is a linear conductor.
- the center conductor 61 is provided on the axial center of the ceramic structure 36 over the entire length of the transmission portion 38.
- the outer conductor 62 is, for example, a rectangular cylindrical conductor.
- the outer conductor 62 surrounds the central conductor 61 with the ceramic 63 interposed therebetween.
- the outer conductor 62 is provided at a certain distance from the center conductor 61 over its entire length. Only one end of the outer conductor 62 is exposed at the end face of the ceramic structure 36.
- one end of the transmission unit 38 is a microwave input terminal. In the transmission unit 38, the microwave input from the input terminal is transmitted to the radiation unit 39 without leaking outside the outer conductor 62.
- the outer conductor 62 is configured by combining a conductor layer and a cylindrical conductor (via hole). Also good. In that case, the distance between the cylindrical conductors adjacent to each other in the microwave transmission direction is set in the outer conductor 62 so that the microwave does not leak outside the outer conductor 62.
- the radiation antenna 16 is embedded so as not to be exposed to the outer surface of the ceramic structure 36. That is, the entire surface of the radiation antenna 16 is covered with the ceramic 63.
- the radiation antenna 16 is a conductor formed in a spiral shape.
- the radiation antenna 16 is integrated with the central conductor 61 of the transmission unit 38 at the input end.
- the casing 37 is formed in a substantially cylindrical shape.
- the inner diameter of the casing 37 is uniform over the axial direction of the casing 37.
- the inner diameter of the casing 37 is approximately equal to the outer diameter of the ceramic structure 36.
- a ceramic structure 36 is fitted into the casing 37 so that the end face of the radiation part 39 is exposed at one end and the end face of the transmission part 38 is exposed at the other end. From one end of the casing 37, a part of the radiating portion 39 protrudes so that a part of the radiating antenna 16 is located outside the casing 37.
- the outer diameter of the casing 37 changes at one place in the axial direction of the casing 37.
- a step is formed on the outer peripheral surface of the casing 37 only at one location.
- the outer diameter on the distal end side where the radiation part 39 is exposed is smaller than the outer diameter on the proximal end side where the transmission part 38 is exposed.
- the high frequency radiation plug 34 is attached to the cylinder head 22 so that the radiation part 39 is exposed to the combustion chamber 20.
- the high frequency radiation plug 34 is screwed into the mounting hole of the cylinder head 22.
- the input terminal of the transmission part 38 is connected to the output terminal of the electromagnetic wave switch 32 via a coaxial cable (not shown).
- the microwave when a microwave is input from the input terminal of the transmission unit 38, the microwave passes through the inside of the outer conductor 62 of the transmission unit 38. The microwaves that have passed through the transmission unit 38 are radiated from the radiation antenna 16 to the combustion chamber 20.
- the outer conductor 62 is provided in a non-contact manner on the casing 37.
- the outer conductor 62 does not conduct through the metal casing 37 to the cylinder head 22 to which the high frequency radiation plug 34 is attached. Therefore, even if a spark current or the like flows through the cylinder head 22, the spark current or the like is not transmitted to the outer conductor 62 via the casing 37.
- a plurality of receiving antennas 52 that resonate with microwaves radiated from the radiation antenna 16 to the combustion chamber 20 are provided on the partition members that partition the combustion chamber 20.
- Each receiving antenna 52 is formed in an annular shape. As shown in FIG. 1, two receiving antennas 52 are provided on the top of the piston 23.
- Each receiving antenna 52 is electrically insulated from the piston 23 by an insulating layer 56 formed on the top surface of the piston 23, and is provided in an electrically floating state.
- the operation of the control device 35 will be described.
- the control device 35 performs a first operation for instructing the ignition device 12 to ignite the air-fuel mixture in one combustion cycle for each combustion chamber 20, and a microwave is applied to the electromagnetic wave emission device 13 after the ignition of the air-fuel mixture.
- a second operation for instructing radiation is performed.
- control device 35 performs the first operation at the ignition timing at which the piston 23 is positioned before the compression top dead center.
- the control device 35 outputs an ignition signal as the first operation.
- spark discharge occurs in the discharge gap of the spark plug 40 as described above.
- the air-fuel mixture is ignited by spark discharge.
- the flame spreads from the ignition position at the center of the combustion chamber 20 toward the wall surface of the cylinder 24.
- the control device 35 performs the second operation after the air-fuel mixture has ignited, for example, at the start timing of the second half period of flame propagation.
- the control device 35 outputs an electromagnetic wave drive signal as the second operation.
- the electromagnetic wave radiation device 13 When receiving the electromagnetic wave drive signal, the electromagnetic wave radiation device 13 radiates a microwave continuous wave (CW) from the radiation antenna 16 as described above. Microwaves are emitted over the second half of the flame propagation.
- the output timing and pulse width of the electromagnetic wave drive signal are set such that microwaves are radiated over a period in which the flame passes through the region where the two receiving antennas 52 are provided.
- each receiving antenna 52 the microwave resonates.
- a strong electric field region having a relatively strong electric field strength is formed in the combustion chamber 20 throughout the second half period of the flame propagation.
- the propagation speed of the flame is increased by receiving microwave energy when the flame passes through the strong electric field region.
- microwave plasma When the microwave energy is large, microwave plasma is generated in the strong electric field region. Active species (for example, OH radicals) are generated in the generation region of the microwave plasma. The propagation speed of the flame passing through the strong electric field region is increased by the active species. -Effect of the embodiment-
- the outer conductor 62 of the transmission line 60 is not in contact with the casing 37 in the high frequency radiation plug 34, the outer conductor 62 is attached to the cylinder head 22 to which the high frequency radiation plug 34 is attached via the casing 37. Not conducting. Therefore, even if a current flows through the cylinder head 22, the current is not transmitted to the outer conductor 62 via the casing 37. Therefore, the current flowing through the cylinder head 22 is prevented from becoming microwave noise radiated from the radiation antenna 16.
- the plate-like conductor 65 is embedded between the radiation antenna 16 and the outer conductor 62 in the ceramic structure 36.
- the plate-like conductor 65 has a larger area than the end face of the outer conductor 62 on the side of the radiation antenna 16, and is provided to improve the microwave radiation efficiency in the radiation antenna 16.
- the plate-like conductor 65 is formed in a ring shape or a C-shape, and is embedded in the ceramic 63 so as to surround the center conductor 61 with a space therebetween.
- the plate-like conductor 65 is not in contact with the center conductor 61.
- the plate conductor 65 is provided along the cross-sectional direction of the ceramic structure 36.
- the plate-like conductor 65 is in contact with only the outer conductor 62 of the outer conductor 62 and the casing 37 so as not to make the outer conductor 62 and the casing 37 conductive.
- the plate-like conductor 65 is in contact with the end face of the outer conductor 62 on the radiation antenna 16 side.
- the plate conductor 65 is electrically connected to the outer conductor 62.
- the plate-like conductor 65 may be in contact with only the casing 37 of the outer conductor 62 and the casing 37. Further, the plate-like conductor 65 may be in non-contact with both the outer conductor 62 and the casing 37. ⁇ Other Embodiments >>
- the embodiment may be configured as follows.
- the central conductor 61 is integrated with the radiating antenna 16, but the central conductor 61 may be capacitively coupled to the radiating antenna 16.
- a plurality of high-frequency radiation plugs 34 may be provided in the internal combustion engine body 11.
- the present invention is useful for a high-frequency radiation plug in which a radiation antenna is provided at one end of a casing.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
-内燃機関本体-
-点火装置-
-電磁波放射装置-
-制御装置の動作-
-実施形態の効果-
-実施形態の変形例-
《その他の実施形態》
11 内燃機関本体
16 放射アンテナ
34 高周波放射用プラグ
36 セラミック構造体
37 ケーシング
60 伝送線路
61 中心導体
62 外側導体
63 セラミック(絶縁体)
Claims (3)
- 電磁波を伝送する伝送線路と、
前記伝送線路を介して供給された電磁波を放射するための放射アンテナと、
筒状の導体により構成され、一端に前記放射アンテナが設けられると共に、該放射アンテナから他端側に延びる前記伝送線路を収容するケーシングとを備えた高周波放射用プラグであって、
前記ケーシング内では、前記放射アンテナに電気的に接続された中心導体と、間隔を隔てて前記中心導体を囲う外側導体とが絶縁体に埋設されて前記伝送線路を構成し、
前記外側導体は、前記ケーシングに非接触に設けられている
ことを特徴とする高周波放射用プラグ。 - 請求項1において、
前記伝送線路の前記絶縁体には、前記外側導体の前記放射アンテナ側の端面よりも面積が大きい板状導体が、前記放射アンテナと前記外側導体との間において、前記外側導体と前記ケーシングを導通させることなく前記中心導体に非接触に埋設されている
ことを特徴とする高周波放射用プラグ。 - 請求項2において、
前記板状導体は、リング状またはC字状に形成され、前記中心導体を囲うように前記絶縁体に埋設されている
ことを特徴とする高周波放射用プラグ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013532690A JP6082880B2 (ja) | 2011-09-11 | 2012-09-10 | 高周波放射用プラグ |
EP12829239.8A EP2754884A4 (en) | 2011-09-11 | 2012-09-10 | HIGH FREQUENCY RADIATION PLUG |
US14/343,471 US10056736B2 (en) | 2011-09-11 | 2012-09-10 | High-frequency radiation plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-197761 | 2011-09-11 | ||
JP2011197761 | 2011-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013035880A1 true WO2013035880A1 (ja) | 2013-03-14 |
Family
ID=47832314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/073104 WO2013035880A1 (ja) | 2011-09-11 | 2012-09-10 | 高周波放射用プラグ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10056736B2 (ja) |
EP (1) | EP2754884A4 (ja) |
JP (1) | JP6082880B2 (ja) |
WO (1) | WO2013035880A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109162854A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 一种双放电模式等离子体点火器的控制方法 |
CN109162852A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 具有多阳极结构的双放电模式等离子体点火器 |
CN109162853A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 一种双放电模式等离子体点火器 |
CN109340016A (zh) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | 一种具有双进气及偏心双阳极结构的等离子体点火器 |
CN109340014A (zh) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | 一种具有单燃料进口的双放电模式等离子体点火器工作方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6677865B2 (ja) * | 2014-08-12 | 2020-04-08 | イマジニアリング株式会社 | 点火装置 |
EP3225832A4 (en) * | 2014-11-24 | 2017-12-13 | Imagineering, Inc. | Ignition unit, ignition system, and internal combustion engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58213120A (ja) | 1982-06-04 | 1983-12-12 | Hitachi Ltd | グロ−プラグ |
JPH1075108A (ja) | 1996-08-30 | 1998-03-17 | Kyocera Corp | 誘電体導波管線路および配線基板 |
JP2009281188A (ja) * | 2008-05-20 | 2009-12-03 | Aet Inc | 火花放電点火方式とマイクロ波プラズマ点火方式を併用する点火装置 |
JP2010096109A (ja) * | 2008-10-17 | 2010-04-30 | Denso Corp | 点火装置 |
JP2012127286A (ja) * | 2010-12-16 | 2012-07-05 | Denso Corp | 高周波プラズマ点火装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2372429A (en) * | 1942-10-31 | 1945-03-27 | Rca Corp | Spark plug |
US3939816A (en) * | 1974-07-12 | 1976-02-24 | The United States Of America As Represented By The National Aeronautics And Space Administration Office Of General Counsel-Code Gp | Gas filled coaxial accelerator with compression coil |
JPS53118637A (en) * | 1977-03-24 | 1978-10-17 | Toyota Motor Corp | Ignition plug for inhibiting generation of electric wave noises |
US4774914A (en) * | 1985-09-24 | 1988-10-04 | Combustion Electromagnetics, Inc. | Electromagnetic ignition--an ignition system producing a large size and intense capacitive and inductive spark with an intense electromagnetic field feeding the spark |
US5076223A (en) * | 1990-03-30 | 1991-12-31 | Board Of Regents, The University Of Texas System | Miniature railgun engine ignitor |
GB9620318D0 (en) * | 1996-09-30 | 1996-11-13 | Bebich Matthew | New ignition system and related engine components |
US6414419B1 (en) * | 1999-12-29 | 2002-07-02 | Sei Y. Kim | Ignition spark plug |
TWI343673B (en) * | 2006-09-11 | 2011-06-11 | Hon Hai Prec Ind Co Ltd | Complex antenna |
KR101335974B1 (ko) * | 2006-09-20 | 2013-12-04 | 이마지니어링 가부시키가이샤 | 점화장치, 내연기관, 점화 플러그, 플라즈마장치, 배기가스 분해장치, 오존 발생·멸균·소독장치 및 소취장치 |
JP5396602B2 (ja) * | 2007-07-12 | 2014-01-22 | イマジニアリング株式会社 | 点火プラグ及び分析装置 |
US8887683B2 (en) * | 2008-01-31 | 2014-11-18 | Plasma Igniter LLC | Compact electromagnetic plasma ignition device |
JP5113106B2 (ja) * | 2008-03-07 | 2013-01-09 | 日本特殊陶業株式会社 | プラズマジェット点火プラグの製造方法 |
JP4948515B2 (ja) * | 2008-12-26 | 2012-06-06 | 日本特殊陶業株式会社 | プラズマジェット点火プラグ |
JP2011034953A (ja) * | 2009-02-26 | 2011-02-17 | Ngk Insulators Ltd | プラズマイグナイター及び内燃機関の点火装置 |
JP5423417B2 (ja) * | 2010-01-20 | 2014-02-19 | 株式会社デンソー | 高周波プラズマ点火装置 |
JP2013231355A (ja) * | 2010-03-26 | 2013-11-14 | Hiromitsu Ando | 着火制御装置 |
JP5422007B2 (ja) * | 2011-02-16 | 2014-02-19 | 日本特殊陶業株式会社 | プラズマジェット点火プラグ及び点火システム |
-
2012
- 2012-09-10 JP JP2013532690A patent/JP6082880B2/ja not_active Expired - Fee Related
- 2012-09-10 WO PCT/JP2012/073104 patent/WO2013035880A1/ja active Application Filing
- 2012-09-10 EP EP12829239.8A patent/EP2754884A4/en not_active Withdrawn
- 2012-09-10 US US14/343,471 patent/US10056736B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58213120A (ja) | 1982-06-04 | 1983-12-12 | Hitachi Ltd | グロ−プラグ |
JPH1075108A (ja) | 1996-08-30 | 1998-03-17 | Kyocera Corp | 誘電体導波管線路および配線基板 |
JP2009281188A (ja) * | 2008-05-20 | 2009-12-03 | Aet Inc | 火花放電点火方式とマイクロ波プラズマ点火方式を併用する点火装置 |
JP2010096109A (ja) * | 2008-10-17 | 2010-04-30 | Denso Corp | 点火装置 |
JP2012127286A (ja) * | 2010-12-16 | 2012-07-05 | Denso Corp | 高周波プラズマ点火装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2754884A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109162854A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 一种双放电模式等离子体点火器的控制方法 |
CN109162852A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 具有多阳极结构的双放电模式等离子体点火器 |
CN109162853A (zh) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | 一种双放电模式等离子体点火器 |
CN109340016A (zh) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | 一种具有双进气及偏心双阳极结构的等离子体点火器 |
CN109340014A (zh) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | 一种具有单燃料进口的双放电模式等离子体点火器工作方法 |
CN109162854B (zh) * | 2018-10-26 | 2021-05-04 | 大连民族大学 | 一种双放电模式等离子体点火器的控制方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2754884A4 (en) | 2016-06-15 |
US20140232264A1 (en) | 2014-08-21 |
EP2754884A1 (en) | 2014-07-16 |
JPWO2013035880A1 (ja) | 2015-03-23 |
US10056736B2 (en) | 2018-08-21 |
JP6082880B2 (ja) | 2017-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6082880B2 (ja) | 高周波放射用プラグ | |
JP6229121B2 (ja) | 内燃機関 | |
JP6040362B2 (ja) | 内燃機関 | |
US9599089B2 (en) | Internal combustion engine and plasma generation provision | |
JP6191030B2 (ja) | プラズマ生成装置、及び内燃機関 | |
JP5957726B2 (ja) | 点火プラグ、及び内燃機関 | |
JP6179004B2 (ja) | 電磁波放射装置 | |
JP6023966B2 (ja) | 内燃機関 | |
JP6145759B2 (ja) | アンテナ構造、高周波放射用プラグ、及び内燃機関 | |
JP6086443B2 (ja) | 内燃機関 | |
JP6145760B2 (ja) | 高周波放射用プラグ及び内燃機関 | |
JP5994062B2 (ja) | アンテナ構造体、高周波放射用プラグ、内燃機関 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12829239 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013532690 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012829239 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14343471 Country of ref document: US |