WO2006108939A2 - Bougie de préchauffage à capteur de pression intégré et corps d'une telle bougie de préchauffage - Google Patents
Bougie de préchauffage à capteur de pression intégré et corps d'une telle bougie de préchauffage Download PDFInfo
- Publication number
- WO2006108939A2 WO2006108939A2 PCT/FR2006/000689 FR2006000689W WO2006108939A2 WO 2006108939 A2 WO2006108939 A2 WO 2006108939A2 FR 2006000689 W FR2006000689 W FR 2006000689W WO 2006108939 A2 WO2006108939 A2 WO 2006108939A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glow plug
- zone
- candle
- finger
- pressure sensor
- Prior art date
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
-
- 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
- G01L23/221—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 for detecting or indicating knocks in internal combustion engines
- G01L23/222—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 for detecting or indicating knocks in internal combustion engines using piezoelectric devices
-
- 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
- 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
-
- 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
- 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
- F23Q2007/002—Glowing plugs for internal-combustion engines with sensing means
Definitions
- the present invention relates to a glow plug with integrated pressure sensor and a body of such a glow plug.
- each cylinder comprises a glow plug which enables the inside of the corresponding combustion chamber to be heated, in particular when the engine is started.
- This glow plug is disposed in a threaded bore that passes through the engine head.
- This glow plug then comprises a threaded body adapted to be mounted in the corresponding bore of the cylinder head and a finger in which is housed a preheating electrode.
- the pressure sensor of such candles Preheating is also subject to external vibrations. Constraints in the head of the cylinder head can also come to disturb the measurements made by the pressure sensor of such a glow plug.
- Candles of the prior art thus have the disadvantage of requiring precise mechanical adjustment during assembly, which results in a high cost.
- parasitic forces disturb the measurement made by the pressure sensor.
- the object of the present invention is therefore to provide means making it possible to better measure the pressure prevailing inside a cylinder of an internal combustion engine without being influenced in particular by the deformations and stresses in the cylinder head, the forces due to expansion and temperature variations, etc. ....
- the pressure measurement must also be carried out in a hostile environment (high temperatures, high pressures, presence of particles, etc %) while being reliable.
- the invention proposes a glow plug comprising:
- tubular body having at one end at one of its ends a candle head and secondly a fixing zone having means enabling it to be fixed in a bore
- the present invention provides that the finger is attached to the candle body so as to be secured thereto in a connection zone, that the candle body has between its finger connection zone and its zone fixing in a bore a resiliently deformable portion such that said connecting zone is movable and can move longitudinally with respect to the attachment zone in a supposedly fixed bore, and that the pressure sensor is disposed between on the one hand an element secured to the connecting zone and on the other hand a fixed element of the candle.
- the elastically deformable part acts as a membrane which dissociates the body of the candle into two parts, a fixed part intended to be mounted in a head of the cylinder head and a movable part subjected to the pressure prevailing in a cylinder of the corresponding engine.
- This membrane can be deformed and the moving part moves longitudinally.
- This movement which is a function of the pressure, is then transmitted to the pressure sensor which can thus give an indication of the pressure exerted on the finger of the candle. Thanks to this new design, the measurement of the pressure sensor is no longer disturbed by parasitic vibrations or stress forces due for example to the tightening of the glow plug in the corresponding cylinder head.
- the movement of the membrane is not affected by the constraints in the head of the cylinder head or in the rest of the body of the candle.
- the elastically deformable portion is an annular zone extending in a plane transverse to the body of the candle. In this way, temperature variations, which cause expansion of the elastically deformable portion, do not influence the longitudinal movement of the movable portion of the glow plug.
- the elastically deformable portion may for example be obtained by thinning material.
- a compact embodiment of a glow plug according to the invention is an embodiment in which the tubular body has on its outer surface a sealing cone for sealing between the glow plug and a head of yoke, and in which the elastically deformable portion is close to said sealing cone.
- the mounting of the pressure sensor is such that this sensor is mounted between on the one hand a fixed support part with respect to the attachment zone and on the other hand a part integral with the finger, mobile with the linking area.
- the integral part of the aforementioned finger is for example a ring welded to the core. It could still be for example a nut screwed to the core, possibly held by a locknut.
- a piezoelectric sensor is particularly well suited to serve as a pressure sensor in a glow plug according to the invention.
- the pressure sensor is preferably arranged in the tubular body at the level of the zone fixing the candle in a bore. The sensor can then be very close to the cylinder, which is favorable to achieve a good measure of pressure.
- the present invention also relates to a glow plug body having on one hand at one of its ends a spark plug head and secondly a fastening zone having means for fixing it in a bore, characterized in that it has between its zone of connection with the finger and its zone of attachment in a bore an elastically deformable portion such that said connection zone is movable and can move longitudinally with respect to the fixing zone in a supposedly fixed bore .
- the elastically deformable portion is preferably an annular zone extending in a plane transverse to the body of the candle.
- the present invention relates to an internal combustion engine, in particular diesel type engine, which comprises a glow plug as described above.
- FIG. 1 is an external view of a candle according to the invention.
- FIG. 2 is a longitudinal sectional view of the lower part of the pressure sensor of FIG. 1, and
- Figure 3 is a detailed view of a membrane of a glow plug according to the invention and its pressure sensor.
- FIGS. 1 and 2 show a glow plug comprising, in a manner known to those skilled in the art, a body 2, a finger 4, a core 6 and a pressure sensor 8.
- the body 2 is tubular in shape and has several circular cylindrical segments.
- the candle body At a first end, referred to as the candle head 10, the candle body has a gripping zone with an outer surface of hexagonal cross-section. This gripping zone is used for the assembly and disassembly of the glow plug by screwing / unscrewing.
- a threaded zone 12 adjacent to the candle head 10, is provided.
- a corresponding tapping is provided in a cylinder head of an engine to cooperate with the threaded zone 12.
- the candle body 2 bears the finger
- This finger is intended to take place in a combustion chamber of the corresponding engine.
- This finger 4 forms the heating element of the glow plug.
- the finger 4 is a ceramic finger.
- This type of finger is known to those skilled in the art and is not described in more detail here. It allows to have a heating element of reduced size.
- This finger 4 is supplied with electric current by the core 6 which passes through the entire body 2 of the candle.
- a connection (not shown) is provided to allow the core 6 to be connected to a source of electrical power.
- the end of the candle body 2, opposite the candle head, carries the finger 4. This end is a circular cylindrical section whose inner diameter is adapted to the outside diameter of the finger 4.
- the attachment of the finger 4 to the end 16 of the body 2 candle is made for example by soldering.
- Brazing can be carried out over the entire height of the end 16 whose diameter is adapted to the diameter of the finger 4.
- the soldering makes it possible to make the finger 4 integral with the end 16 of the candle body 2.
- Other techniques could be used here to secure the finger 4 to the end 16 of the body 2.
- the lower part of the body 2 of candle comprising the end 16 is made of a suitable material .
- This material preferably has a coefficient of expansion close to that of the ceramic used for producing the finger 4.
- the body 2 candle can be an assembly of several parts. In FIG. 3, it can be seen that the body 2 represented has a junction plane corresponding to the assembly of two pieces welded to each other to form the body 2.
- the end 16 of the candle body 2 forms a connecting zone between the candle body 2 and the finger 4.
- This connecting zone is connected to the rest of the candle body 2 by a portion of the elastically deformable body, this elastic portion being hereafter called membrane 18.
- the coupling 16 end to the rest of the body 2 of candle is made, through the membrane 18, to level of the sealing cone 14.
- the membrane 18 is in the form of an annular washer disposed in a plane perpendicular to the axis of the body 2 candle.
- the thickness of the membrane (measured longitudinally) is for example of the order of 0.3 mm. This thickness is less than the thickness of the wall of the body 2. The latter thickness may be for example between 0.5 mm and 1 mm.
- the width of this membrane 18 is of the order of 0.5 mm. In this numerical example, this means that the difference between the outer radius of the membrane 18 and the inner radius thereof is 0.5 mm.
- the outer edge of large diameter of the membrane 18 is connected to the sealing cone 14.
- the portion of the body 2 candle located between the sealing cone 14 and the threaded zone 12 is a rigid zone.
- This zone is mounted in the corresponding bolt head and is assumed to be fixed.
- the membrane 18 flexes and the finger 4, as well as the end 16 of the body 2, move longitudinally. There is thus on one side of the diaphragm 18 a supposed fixed area of the candle body 2 and on the other hand a movable area.
- the membrane 18 thus makes a decoupling between these two zones.
- pressure is exerted inside the corresponding cylinder, this pressure exerts on the finger 4 a force tending to return it into the body 2 of candle.
- the measurement of this pressure is performed by the pressure sensor 8. It is a piezoelectric sensor.
- the pressure sensor 8 is mounted between on the one hand a fixed part, integral with the immobile part of the candle body 2, and on the other hand a movable part, integral with the finger 4.
- the fixed part is called thereafter interface 20. It is a tubular element of circular cylindrical shape. Its shape and its dimensions are adapted to be able to be housed inside the tubular body 2 and on the other hand to allow the passage to the core 6.
- This interface 20 takes place in the body 2 of candle just at The piece is thus very close to the finger 4.
- a seat 22 is provided in the inner surface of the body 2 of candle to receive the interface 20.
- the pressure sensor 8 takes place on the interface 20, that is to say say on the side of the candle head 10.
- an electrically insulating element 24 is disposed between the interface 20 and the piezoelectric sensor 8.
- This sensor comprises a piezoelectric element 26 arranged between two contact elements 28 of material electricity conductor.
- Each of these contact elements 28 is provided with a connection grid (generally known by the English name "lead frame") overmolded in the form of a portion of a cylinder.
- connection grids are not shown in the drawings. Here we can also provide more conventional connection tabs.
- the pressure sensor 8 is the moving part mentioned above.
- This is a ring 30.
- the latter is electrically isolated from the pressure sensor 8 also via an electrically insulating element 24.
- the ring 30 is welded to the core 6, for example by laser welding .
- the pressure sensor is arranged to be very close to the combustion chamber. It is very close to the finger 4. In this way, the mounting of the sensor is simplified. The measurement made by this sensor is all the more precise.
- the pressure sensor is located inside the head of the cylinder head. Compared to the glow plug, it is located at the attachment zone (between the sealing cone 14 and the threaded zone 12) in which is formed the connection between the glow plug and the head of the cylinder head.
- the pressure sensor 8 of the glow plug described above is insensitive to the stresses in the head of the cylinder head. These various constraints do not therefore influence the measurement made by this sensor.
- the pressure sensor is also isolated from particles and other impurities in the corresponding combustion chamber.
- the connection between the end 16 and the finger 4 is perfectly sealed and therefore prevents migration of particles to the pressure sensor.
- the membrane 18 is preferably placed in a plane transverse to the body 2 of the candle.
- the moving set, including the finger 4 can then move up and down (it is assumed here the candle in the vertical position, the head of the candle is at the top) depending on the pressure in the corresponding cylinder and exerted on the finger 4. This displacement of the membrane is transmitted to the piezoelectric element 26 via the core 6 of the candle.
- the interface 20 is very close to the finger 4. However, an interval exists between these two parts. This interval is sufficient not to hinder the movements of the finger 4. An interval is then provided between the finger 4 and the interface 20 much greater than the amplitude of the movement of the finger 4.
- the pressure measurement performed is independent of the temperature.
- the membrane 18 an alloy whose elasticity does not vary in the temperature ranges to which the membrane is subjected.
- the piezoelectric element 26 is chosen so that its sensitivity is independent of the temperature.
- the piezoelectric element 26 is for example in the form of a single crystal.
- polycrystals having a high Curie temperature for example greater than 500 ° C.
- the present invention is not limited to the embodiment described above and the variants mentioned. It also relates to all embodiments within the reach of the skilled person.
- the pressure sensor is located very close to the finger forming the heating element of the glow plug. It would not be outside the scope of the invention by moving the pressure sensor away from this finger.
- the pressure sensor described is a piezoelectric sensor mounted in prestressing. Another embodiment, where the piezoelectric element works for example in compression, is also conceivable.
- the membrane described is preferably obtained by thinning material. However, if the wall of the body of the candle is relatively thin, a zone of elastic deformation, allowing longitudinal movement, can be obtained without thinning. An appropriate form of the body of the candle makes it possible to obtain this membrane.
- the position of the elastically deformable membrane may be different from that described above.
- the preferred embodiment described allows a compact construction of the glow plug. In some cases, a less compact design may be considered.
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- 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 (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800119739A CN101166960B (zh) | 2005-04-12 | 2006-03-30 | 集成压力传感器式预热火花塞及这类预热火花塞的主体 |
JP2008505922A JP5339898B2 (ja) | 2005-04-12 | 2006-03-30 | 一体化された圧力センサを備えたグロープラグ及びグロープラグのボディ |
KR1020077026080A KR101321494B1 (ko) | 2005-04-12 | 2006-03-30 | 일체형 압력 센서를 갖는 글로 플러그 및 그 본체 |
US11/918,365 US8505511B2 (en) | 2005-04-12 | 2006-03-30 | Glow plug with integrated pressure sensor and body thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0503607A FR2884299B1 (fr) | 2005-04-12 | 2005-04-12 | Bougie de prechauffage a capteur de pression integre et corps d'une telle bougie de prechauffage |
FR0503607 | 2005-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006108939A2 true WO2006108939A2 (fr) | 2006-10-19 |
WO2006108939A3 WO2006108939A3 (fr) | 2007-05-03 |
Family
ID=34955104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/000689 WO2006108939A2 (fr) | 2005-04-12 | 2006-03-30 | Bougie de préchauffage à capteur de pression intégré et corps d'une telle bougie de préchauffage |
Country Status (6)
Country | Link |
---|---|
US (1) | US8505511B2 (fr) |
JP (1) | JP5339898B2 (fr) |
KR (1) | KR101321494B1 (fr) |
CN (1) | CN101166960B (fr) |
FR (1) | FR2884299B1 (fr) |
WO (1) | WO2006108939A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008068101A1 (fr) | 2006-12-05 | 2008-06-12 | Robert Bosch Gmbh | Dispositif de mesure de pression |
DE102006016566B4 (de) * | 2005-09-22 | 2008-06-12 | Beru Ag | Zusammengesetzter Leiter, insbesondere für Glühkerzen für Dieselmotoren |
US8217309B2 (en) | 2008-12-15 | 2012-07-10 | Federal-Mogul Italy Srl. | Glow plug with pressure sensing canister |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2935797B1 (fr) | 2008-09-08 | 2010-10-22 | Continental Automotive France | Dispositif integrant un capteur de pression pour la mesure de pressions au sein d'un moteur a combustion interne |
FR2935796B1 (fr) * | 2008-09-08 | 2010-10-22 | Continental Automotive France | Dispositif integrant un capteur de pression pour la mesure de pressions au sein d'un moteur a combustion interne ainsi qu'un corps d'un tel dispositif |
JP5339950B2 (ja) * | 2009-02-16 | 2013-11-13 | 株式会社ミクニ | 燃焼圧センサ付きグロープラグ |
FR2949537B1 (fr) | 2009-09-01 | 2012-11-16 | Continental Automotive France | Bougie de prechauffage integrant un capteur de force et deux membranes |
US8516895B2 (en) * | 2009-10-08 | 2013-08-27 | GM Global Technology Operations LLC | In-cylinder pressure sensor diagnostic systems and methods |
FR2955172B1 (fr) | 2010-01-12 | 2012-05-11 | Continental Automotive France | Bougie de prechauffage a doigt metallique |
EP2472181B1 (fr) * | 2010-12-22 | 2014-09-10 | HIDRIA AET Druzba za proizvodnjo vzignih sistemov in elektronike d.o.o. | Bougie de préchauffage à manchon capteur d'efforts entourant le doigt chauffant hors chambre de combustion |
EP2469170B1 (fr) | 2010-12-22 | 2017-01-25 | HIDRIA AET Druzba za proizvodnjo vzignih sistemov in elektronike d.o.o. | Bougie de préchauffage à manchon capteur d'efforts relié au corps de bougie par une liaison élastiquement déformable |
EP2469169B1 (fr) | 2010-12-22 | 2017-08-16 | HIDRIA AET Druzba za proizvodnjo vzignih sistemov in elektronike d.o.o. | Bougie de préchauffage à manchon de réception du doigt chauffant doté d'un retroussement distal |
JP5838033B2 (ja) | 2011-02-25 | 2015-12-24 | 日本特殊陶業株式会社 | 燃焼圧力センサ付きグロープラグ |
DE102011088468A1 (de) * | 2011-12-14 | 2013-06-20 | Robert Bosch Gmbh | Druckmessglühkerze |
JP5965181B2 (ja) * | 2012-03-29 | 2016-08-03 | 日本特殊陶業株式会社 | グロープラグ及びその製造方法 |
DE102012209237A1 (de) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Druckmessglühkerze |
KR102711381B1 (ko) | 2022-09-27 | 2024-09-27 | (주)케이블루 | 센서용 점화플러그의 연마장치 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS62731A (ja) * | 1985-06-27 | 1987-01-06 | Jidosha Kiki Co Ltd | デイ−ゼルエンジン用グロ−プラグ |
JP3177819B2 (ja) * | 1995-09-05 | 2001-06-18 | 株式会社ユニシアジェックス | 内燃機関の筒内圧力検出装置 |
JP3911930B2 (ja) * | 1999-10-28 | 2007-05-09 | 株式会社デンソー | 燃焼圧センサ付きグロープラグ |
JP4300663B2 (ja) * | 1999-12-24 | 2009-07-22 | 株式会社デンソー | 燃焼圧センサ構造体 |
JP3885515B2 (ja) * | 2001-04-26 | 2007-02-21 | 株式会社デンソー | 燃焼圧センサ付きグロープラグ |
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 |
JP2004278934A (ja) * | 2003-03-17 | 2004-10-07 | Ngk Spark Plug Co Ltd | 燃焼圧検知機能付きグロープラグ |
EP1477740B1 (fr) * | 2003-04-07 | 2013-12-25 | Ngk Spark Plug Co., Ltd | Dispositif de chauffage |
DE10343521A1 (de) * | 2003-09-19 | 2005-04-21 | Beru Ag | Druckmessglühkerze für einen Dieselmotor |
DE102004012673A1 (de) * | 2004-03-16 | 2005-10-06 | Robert Bosch Gmbh | Glühstiftkerze mit elastisch gelagertem Glühstift |
FR2869393B1 (fr) * | 2004-04-27 | 2006-07-14 | Siemens Vdo Automotive Sas | Dispositif pour agir sur un capteur de pression monte sur une bougie de prechauffage |
FR2869390B1 (fr) * | 2004-04-27 | 2006-07-14 | Siemens Vdo Automotive Sas | Corps d'une bougie de prechauffage comprenant un capteur de pression |
JP2007309916A (ja) * | 2006-04-20 | 2007-11-29 | Denso Corp | 燃焼圧センサ |
JP2008002809A (ja) * | 2006-06-20 | 2008-01-10 | Denso Corp | 燃焼圧センサー |
-
2005
- 2005-04-12 FR FR0503607A patent/FR2884299B1/fr not_active Expired - Fee Related
-
2006
- 2006-03-30 JP JP2008505922A patent/JP5339898B2/ja not_active Expired - Fee Related
- 2006-03-30 KR KR1020077026080A patent/KR101321494B1/ko active Active
- 2006-03-30 WO PCT/FR2006/000689 patent/WO2006108939A2/fr active Application Filing
- 2006-03-30 CN CN2006800119739A patent/CN101166960B/zh not_active Expired - Fee Related
- 2006-03-30 US US11/918,365 patent/US8505511B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016566B4 (de) * | 2005-09-22 | 2008-06-12 | Beru Ag | Zusammengesetzter Leiter, insbesondere für Glühkerzen für Dieselmotoren |
WO2008068101A1 (fr) | 2006-12-05 | 2008-06-12 | Robert Bosch Gmbh | Dispositif de mesure de pression |
US7954382B2 (en) | 2006-12-05 | 2011-06-07 | Robert Bosch Gmbh | Pressure-measuring device |
US8217309B2 (en) | 2008-12-15 | 2012-07-10 | Federal-Mogul Italy Srl. | Glow plug with pressure sensing canister |
Also Published As
Publication number | Publication date |
---|---|
US20090056663A1 (en) | 2009-03-05 |
US8505511B2 (en) | 2013-08-13 |
FR2884299A1 (fr) | 2006-10-13 |
KR20080005545A (ko) | 2008-01-14 |
CN101166960A (zh) | 2008-04-23 |
JP5339898B2 (ja) | 2013-11-13 |
FR2884299B1 (fr) | 2007-06-29 |
CN101166960B (zh) | 2012-07-04 |
KR101321494B1 (ko) | 2013-10-22 |
JP2008536085A (ja) | 2008-09-04 |
WO2006108939A3 (fr) | 2007-05-03 |
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