WO2009121331A2 - Druckmessglühkerze - Google Patents
Druckmessglühkerze Download PDFInfo
- Publication number
- WO2009121331A2 WO2009121331A2 PCT/DE2009/000401 DE2009000401W WO2009121331A2 WO 2009121331 A2 WO2009121331 A2 WO 2009121331A2 DE 2009000401 W DE2009000401 W DE 2009000401W WO 2009121331 A2 WO2009121331 A2 WO 2009121331A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glow plug
- plug according
- measuring element
- measuring
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
- F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
- F02P19/028—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs the glow plug being combined with or used as a sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
- G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
- F23Q2007/002—Glowing plugs for internal-combustion engines with sensing means
Definitions
- the invention relates to a glow plug, in particular for a self-igniting internal combustion engine.
- Such glow plugs are known for example from DE 10 346 295 A1.
- the measuring element sits outside of the cylinder head to protect it from the high temperatures of the combustion chamber.
- Such a design results in a long power transmission path that results in a low natural frequency and causes noise and phase shifts in the measurement result.
- the glow plug at least one plug body with at least one substantially rod-shaped radiator, which protrudes at one end of the plug body and at least one measuring element, wherein the heating element and the measuring element are integrally connected to each other comprises. It is advantageous that the heat transfer paths remain limited to a minimum.
- the plug body is designed substantially tubular. It is advantageous that the production is easier and thus costs can be saved.
- the plug body is configured at least in two parts and has at least one body upper part and at least one body lower part. The advantage here is the cheaper production.
- the plug body has at least one candle middle part.
- a central body part has the advantage that the heating element is connected at its, the combustion chamber opposite side materially connected to the measuring element at one end face, wherein the measuring element connected at its other end by a welding ring and its outer surface with the body upper part and the body center part can be.
- the ceramic heating element transmits the pressure directly to the measuring element, a bias voltage for holding together the force transmission elements is not necessary.
- the body lower part has a sealing cone. It is also advantageous if the radiator is essentially surrounded by a protective tube. This protective tube protects the radiator from possible damage.
- the glow plug has at least one sealing element.
- This sealing element has the advantage that the sensitive measuring elements are protected from the corrosive combustion chamber gases.
- a further advantageous embodiment provides that the sealing element has a small rigidity in the axial direction and a relatively high rigidity in the radial direction.
- This sealing element has the advantage that the foreign sources of error, for example the thermal expansion and the deformation of the cylinder head, with the soft in the axial direction sealing element are largely isolated, and the power transmission elements are largely supported by the rigid in the radial direction sealing element, so that the Resonant frequency is increased in the radial direction.
- the radiator and / or the protective tube and / or the sealing element are material and / or positively connected with each other. The advantage here is that both the KarminMap analyses and the sensitive measuring devices are protected from the combustion chamber gases.
- the sealing element and the protective tube are designed in one piece.
- the reduction of the protective tube and the sealing element to a single part has both manufacturing and cost advantages. Because a weld seam that can not be provided can not leak and a tight protective tube that acts as a sealing element protects the sensitive parts from the corrosive combustion chamber gases.
- the measuring element has at least one sensor for determining the pressure and / or at least one sensor for determining the temperature.
- the sensor for determining the temperature is arranged as the * measuring strip on the measuring element in a region which is largely spared by stresses or voltage changes, this temperature sensor can act as a reference value transmitter and contribute to the correction of the entire measurement result.
- the measuring element consists of a material which has a largely independent of the temperature piezoelectric effect in its operating temperature range, for example, quartz or GaPO. 4
- FIG. 3 Top view of the measuring element from FIG. 2
- the glow plug shown in Figure 1 has a body upper part 1, a body center part 2 and a Keramiksammlungstab 3 and a lower body part 4.
- a sealing cone 5 is arranged at the lower body part 4.
- the inner pole 11 is arranged, around which the measuring element 7 and the welding ring 6 are arranged around.
- FIG. 2 shows a section of the glow plug of FIG. 1.
- the glow plug has a body upper part 1, which is arranged above the body center part 2.
- a Keramiksammlungstab 3 is arranged in particular in the region of the body center part 2 and the body part 4 such that it is inserted on the side facing away from the combustion chamber 12 in the measuring element 7 and non-positively and / or positively and / or materially connected to the inner pole 11.
- a sealing cone 5 is arranged at the lower body part 4.
- the inner pole 11 is arranged in such a way that around it, the measuring element 7 and the welding ring 6 are arranged substantially concentric.
- the measuring element 7 and the welding ring 6 are non-positively and / or positively and / or materially connected to each other.
- the welding ring 6 is non-positively and / or positively and / or materially connected to the body upper part 1 and / or connected to the body center part 2.
- a membrane is arranged, which merges into a protective tube 13 and is made in one piece.
- the membrane 10 is welded to the protective tube 13.
- the protective tube 13 encloses substantially the projecting into the combustion chamber 12 part of the heating element 3 and protects it and the interior of the body parts 1, 2, 4 in front of the combustion chamber gases.
- the annular or deformable tubular measuring element 7 is made of a material which is elastic up to values of 200 bar and 200 degrees Celsius and has a constant modulus of elasticity.
- the measuring element 7 is made of ceramic, for example. In one embodiment of the invention, the measuring element consists essentially of Z1O2. On the lateral surface of the measuring element 7 is a
- Deformation measuring element 8 is arranged.
- the deformation measuring element 8 comprises a strain gauge in order to determine the deformation of the measuring element 7, which allows conclusions about the state in the combustion chamber 12.
- the representation of the deformation element 7 is shown in FIG.
- the strain gauges 8, 9 change their electrical resistance at low deformations. They are used as strain sensors by sticking them with special glue on parts that deform minimally under load. The resulting deformation or strain of the strain gauge 8 leads to its change in resistance. DMS measurements are implemented, for example, by using bridge circuits, in particular the quarter, half and full bridges. DMSs are used in the embodiments wire, foil, semiconductor or rosette strain gauges.
- the deformation element 7 is arranged between the welding ring 6 and the ceramic heating element 3, wherein the strain gauge 9 is arranged for temperature compensation in a region of the deformation element 7, which is designed to be largely stress-free.
- Strain gauges can detect changes in shape in the form of strains or compressions on the surface of components.
- DMS allow the experimental determination of mechanical stresses and allow a statement about the stress of the material in its actual application.
- the strain gage 8 consists for example of a foil strain gage, wherein the gill plate consists of resistance wire, which is about 3 to 8 microns thick.
- the measuring grid film is laminated on a thin plastic carrier and etched and equipped with electrical connections.
- the DMS 8 has a second thin plastic film on its upper side. The second plastic film is firmly glued to the carrier to mechanically protect the measuring grid.
- a plurality of strain gages are arranged on a carrier in a defined geometry.
- the shape of the measuring grid depends on the application and is based on the specific applications.
- the length of the measuring grid is about 0.2 to 150 mm.
- the carrier foils of the DMS 8, 9 consist of acrylic resin, epoxy resin, phenolic resin or polyamide.
- piezoelectric, voltage-optic or capacitive strain gages are used. They are used in practice for special applications. Capacitive strain gages are used in the high temperature range above 1000 ° C.
- the strain gauges 8, 9 consist of metallic conductors or of semiconductors, which change their resistance when strained. If the strain gauge 8, 9 is stretched, its resistance increases. If a strain gauge is compressed, its resistance decreases. Semiconductors change their resistance about 50 to 80 times as much as metallic conductors.
- the resistance change observed under mechanical loading of the strain gauge 8, 9 is caused by the geometric deformation of the measuring grid and by the change in the specific resistance of the measuring grid material.
- Different strain gauge materials give different values for the sensitivity, the so-called k-factor, of the strain gauge.
- the material Constantan is chosen for standard strain gage applications despite the low k-factor. If a larger temperature range is required or the temperatures are to be measured below -150 0 C, NiCr is used as the measuring grid material.
- the maximum extensibility of the strain gauge 8, 9 mainly depends on the extensibility of the measuring grid material. Further dependencies exist through the adhesive, through its extensibility and bond strength and the material of the carrier material. The values of the maximum extensibility at room temperature are approximately in the range of a few 1000 ⁇ m / m for semiconductor strain gauges up to 50000 ⁇ m / m for foil strain gauges.
- the nominal resistance of a strain gage is the resistance measured between the two terminals without straining the strain gage, eg 120, 350, 700 or 1000 ohms.
- the maximum voltage with which a DMS may be operated depends on its size and the material to which it has been glued. In this case, the power loss at the strain gauge resistor is dissipated via the strain gauge surface. With good heat-conducting materials about 5 to 10 volts are common values, with small strain gauges and poorly thermally conductive materials, for example, 0.5 volts are applied.
- the constant current method offers the possibility of using large cable lengths for the individual bridge circuits without the signal being corrupted.
- Both the carrier frequency and the DC voltage method the cable losses are compensated by electronic circuits.
- Carrier frequency and DC voltage differ mainly in the achievable signal bandwidth of the amplifier available on the market: At DC voltage are up to about 100 kHz, at the carrier frequency usually only a few 100 Hz to about 3 kHz are common. Another difference lies in their susceptibility to interference, which, however, also depends on the particular environment and application.
- the carrier frequency method is insensitive to thermoelectric voltages, common mode noise (electrical interference) and - if the interference frequencies are outside the carrier frequency plus / minus bandwidth - also against differential mode interference (magnetic interference).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Spark Plugs (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112009001312T DE112009001312A5 (de) | 2008-04-02 | 2009-03-30 | Druckmessglühkerze |
| CN200980112099.1A CN101983303B (zh) | 2008-04-02 | 2009-03-30 | 测压式电热塞 |
| RU2010143989/06A RU2504720C2 (ru) | 2008-04-02 | 2009-03-30 | Запальная свеча с возможностью измерения давления |
| US12/936,021 US8459104B2 (en) | 2008-04-02 | 2009-03-30 | Pressure measuring glow plug |
| JP2011502223A JP2011516810A (ja) | 2008-04-02 | 2009-03-30 | 圧力測定用グロープラグ |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008017110A DE102008017110B3 (de) | 2008-04-02 | 2008-04-02 | Druckmessglühkerze |
| DE102008017110.7 | 2008-04-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009121331A2 true WO2009121331A2 (de) | 2009-10-08 |
| WO2009121331A3 WO2009121331A3 (de) | 2010-09-30 |
Family
ID=40936583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2009/000401 Ceased WO2009121331A2 (de) | 2008-04-02 | 2009-03-30 | Druckmessglühkerze |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8459104B2 (de) |
| JP (1) | JP2011516810A (de) |
| KR (1) | KR20110000566A (de) |
| CN (1) | CN101983303B (de) |
| DE (2) | DE102008017110B3 (de) |
| RU (1) | RU2504720C2 (de) |
| WO (1) | WO2009121331A2 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130269642A1 (en) * | 2010-12-22 | 2013-10-17 | Hidria Aet Druzba Za Proizvodnjo Vzignih Sistemov In Elektronike D.O.O. | Glow plug with a plug body formed of multiple tubes end to end |
| CN103388835A (zh) * | 2013-07-12 | 2013-11-13 | 刘俊伟 | 燃气灶点火器的外壳及燃气灶点火器及燃气灶点火器的装配工艺 |
| KR20190104265A (ko) | 2019-07-19 | 2019-09-09 | 우진공업주식회사 | 디젤 엔진용 글로우 플러그의 금구 및 그 제조 방법 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020510B4 (de) * | 2008-04-23 | 2010-02-11 | Beru Ag | Vorrichtung und Verfahren zur Ermittlung des Brennraumdruckes |
| DE102009050911B4 (de) * | 2009-10-26 | 2014-06-12 | Borgwarner Beru Systems Gmbh | Zylinderdrucksensor |
| EP2679904B1 (de) * | 2011-02-25 | 2018-07-25 | NGK Spark Plug Co., Ltd. | Zündkerze mit verbrennungsdrucksensor |
| JP5854638B2 (ja) * | 2011-05-19 | 2016-02-09 | 株式会社ミクニ | グロープラグ |
| DE102011054511B4 (de) | 2011-07-05 | 2013-08-29 | Borgwarner Beru Systems Gmbh | Glühkerze |
| JP5853837B2 (ja) * | 2012-04-13 | 2016-02-09 | 株式会社豊田中央研究所 | 圧力センサ |
| DE102012209237A1 (de) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Druckmessglühkerze |
| JP6181962B2 (ja) * | 2013-04-16 | 2017-08-16 | 日本特殊陶業株式会社 | 燃焼圧センサ付きグロープラグの製造方法 |
| KR20140142934A (ko) | 2013-06-05 | 2014-12-15 | 우진공업주식회사 | 디젤 엔진용 글로우 플러그의 금구 및 그 제조 방법 |
| DE102016114929B4 (de) * | 2016-08-11 | 2018-05-09 | Borgwarner Ludwigsburg Gmbh | Druckmessglühkerze |
| CN114777155A (zh) * | 2022-05-25 | 2022-07-22 | 重庆利迈科技有限公司 | 四线可测温电加热及点火装置 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312120A (en) * | 1980-05-22 | 1982-01-26 | Bendix Autolite Corporation | Glow plug manufacture |
| DE4236656A1 (de) * | 1992-10-30 | 1994-05-05 | Bosch Gmbh Robert | Rohrförmiges Metallgehäuse für Zündkerzen, Glühkerzen und Sensoren |
| DE19506950C2 (de) * | 1995-02-28 | 1998-07-23 | Bosch Gmbh Robert | Glühstiftkerze für Dieselmotoren |
| CN2309432Y (zh) * | 1996-10-16 | 1999-03-03 | 机械工业部上海内燃机研究所 | 陶瓷电热塞 |
| RU13687U1 (ru) * | 2000-01-05 | 2000-05-10 | Автономная некоммерческая научно-образовательная организация ДВГТУ "Научно-технический и внедренческий центр "Модернизация котельной техники" | Запальное устройство |
| AT5949U1 (de) * | 2002-01-25 | 2003-01-27 | Avl List Gmbh | Druckmesssonde zur messung des druckes im brennraum einer brennkraftmaschine |
| JP3900059B2 (ja) * | 2002-10-07 | 2007-04-04 | 株式会社デンソー | 燃焼センサ付きグロープラグおよび燃焼圧センサ付きグロープラグの取付構造ならびに取付方法 |
| DE10343521A1 (de) * | 2003-09-19 | 2005-04-21 | Beru Ag | Druckmessglühkerze für einen Dieselmotor |
| DE102004011098A1 (de) * | 2004-03-06 | 2005-09-22 | Robert Bosch Gmbh | Vorrichtung zur Erfassung des Brennraumdrucks bei einer Brennkraftmaschine |
| DE102004012364A1 (de) * | 2004-03-13 | 2005-09-29 | Robert Bosch Gmbh | Keramische Glühstiftkerze mit in Glühstift integriertem Drucksensor |
| DE102004012673A1 (de) * | 2004-03-16 | 2005-10-06 | Robert Bosch Gmbh | Glühstiftkerze mit elastisch gelagertem Glühstift |
| JP4487853B2 (ja) * | 2004-05-26 | 2010-06-23 | 株式会社豊田中央研究所 | グロープラグ |
| US7351935B2 (en) * | 2004-06-25 | 2008-04-01 | Ngk Spark Plug Co., Ltd. | Method for producing a ceramic heater, ceramic heater produced by the production method, and glow plug comprising the ceramic heater |
| US7115836B2 (en) * | 2004-06-29 | 2006-10-03 | Ngk Spark Plug Co., Ltd. | Glow plug |
| CN1734076A (zh) * | 2004-08-05 | 2006-02-15 | 日本特殊陶业株式会社 | 具有燃烧压力探测功能的电热塞 |
| PL1792155T3 (pl) * | 2004-09-22 | 2012-09-28 | Kistler Holding Ag | Czujnik ciśnienia |
| DE102004063749A1 (de) * | 2004-12-29 | 2006-07-13 | Robert Bosch Gmbh | Stahlmembran für Brennraumdrucksensoren |
| DE102004063750A1 (de) * | 2004-12-29 | 2006-07-13 | Robert Bosch Gmbh | Glühstiftkerze mit integriertem Brennraumdrucksensor |
| FR2884298B1 (fr) * | 2005-04-12 | 2007-08-10 | Siemens Vdo Automotive Sas | Bougie de prechauffage a capteur de pression integre |
| DE102005026074A1 (de) * | 2005-06-07 | 2006-12-14 | Robert Bosch Gmbh | Glühstiftkerze mit einem integrierten Brennraumdrucksensor |
| DE102005051817B4 (de) * | 2005-10-28 | 2008-06-05 | Beru Ag | Druckmessglüheinrichtung, insbesondere Druckmessglühkerze |
| DE102006008351A1 (de) * | 2006-02-21 | 2007-08-23 | Robert Bosch Gmbh | Druckmesseinrichtung |
| AT503662B1 (de) * | 2006-04-20 | 2007-12-15 | Piezocryst Advanced Sensorics | Glühkerze mit integriertem drucksensor |
| JP2008020176A (ja) * | 2006-06-14 | 2008-01-31 | Ngk Spark Plug Co Ltd | センサ内蔵グロープラグ |
| DE102006041124B4 (de) * | 2006-09-01 | 2008-06-26 | Beru Ag | Glühkerze mit eingebautem Drucksensor |
| DE102006057627A1 (de) * | 2006-12-05 | 2008-06-12 | Robert Bosch Gmbh | Druckmesseinrichtung |
| US8074502B2 (en) * | 2007-11-26 | 2011-12-13 | Kistler Holding, Ag | Part for measuring forces or pressures, and sensor comprising such a part |
-
2008
- 2008-04-02 DE DE102008017110A patent/DE102008017110B3/de not_active Expired - Fee Related
-
2009
- 2009-03-30 JP JP2011502223A patent/JP2011516810A/ja not_active Ceased
- 2009-03-30 CN CN200980112099.1A patent/CN101983303B/zh not_active Expired - Fee Related
- 2009-03-30 KR KR1020107023890A patent/KR20110000566A/ko not_active Ceased
- 2009-03-30 US US12/936,021 patent/US8459104B2/en not_active Expired - Fee Related
- 2009-03-30 DE DE112009001312T patent/DE112009001312A5/de not_active Withdrawn
- 2009-03-30 WO PCT/DE2009/000401 patent/WO2009121331A2/de not_active Ceased
- 2009-03-30 RU RU2010143989/06A patent/RU2504720C2/ru not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130269642A1 (en) * | 2010-12-22 | 2013-10-17 | Hidria Aet Druzba Za Proizvodnjo Vzignih Sistemov In Elektronike D.O.O. | Glow plug with a plug body formed of multiple tubes end to end |
| CN103388835A (zh) * | 2013-07-12 | 2013-11-13 | 刘俊伟 | 燃气灶点火器的外壳及燃气灶点火器及燃气灶点火器的装配工艺 |
| CN103388835B (zh) * | 2013-07-12 | 2015-06-10 | 刘俊伟 | 燃气灶点火器的外壳及燃气灶点火器及燃气灶点火器的装配工艺 |
| KR20190104265A (ko) | 2019-07-19 | 2019-09-09 | 우진공업주식회사 | 디젤 엔진용 글로우 플러그의 금구 및 그 제조 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110146392A1 (en) | 2011-06-23 |
| DE102008017110B3 (de) | 2009-09-10 |
| RU2504720C2 (ru) | 2014-01-20 |
| US8459104B2 (en) | 2013-06-11 |
| CN101983303A (zh) | 2011-03-02 |
| JP2011516810A (ja) | 2011-05-26 |
| DE112009001312A5 (de) | 2011-03-03 |
| KR20110000566A (ko) | 2011-01-03 |
| RU2010143989A (ru) | 2012-05-10 |
| WO2009121331A3 (de) | 2010-09-30 |
| CN101983303B (zh) | 2013-01-02 |
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