WO2012114721A1 - 燃焼圧力センサ付きグロープラグ - Google Patents
燃焼圧力センサ付きグロープラグ Download PDFInfo
- Publication number
- WO2012114721A1 WO2012114721A1 PCT/JP2012/001134 JP2012001134W WO2012114721A1 WO 2012114721 A1 WO2012114721 A1 WO 2012114721A1 JP 2012001134 W JP2012001134 W JP 2012001134W WO 2012114721 A1 WO2012114721 A1 WO 2012114721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glow plug
- pressure sensor
- metal shell
- combustion pressure
- cap
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/005—Plugs
-
- 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
-
- 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
- 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, and more particularly to a glow plug with a combustion pressure sensor.
- a glow plug is used as an auxiliary heat source.
- a male screw provided in a housing thereof is screwed into a female screw formed in a plug mounting hole of an engine head, and a tapered shape provided in a front end of the housing. This seal surface is brought into contact with a tapered seat surface formed in the plug mounting hole of the internal combustion engine, thereby ensuring airtightness from the combustion chamber.
- a new combustion method such as a premixed combustion method has been proposed, and accordingly, the combustion pressure of the internal combustion engine tends to increase. Therefore, it may be difficult for a conventional glow plug to ensure sufficient airtightness against a high combustion pressure.
- a glow plug having a pressure sensor for detecting the combustion pressure in an internal combustion engine it is necessary to incorporate a movable structure of the sensor and heater (a structure capable of relative displacement with respect to the housing) inside, so the thickness of the housing It is difficult to thicken. Therefore, considering the possibility of plastic deformation of the housing, it is difficult to improve the airtightness between the combustion chamber by simply increasing the fastening axial force of the glow plug.
- the engine head to which the glow plug is attached is often formed of aluminum having a high thermal expansion coefficient. For this reason, when the internal combustion engine reaches a high temperature, the engine head expands accordingly, and the axial force of the glow plug decreases.
- the problem to be solved by the present invention is to improve the airtightness between the combustion chamber and the glow plug with the combustion pressure sensor.
- the present invention has been made to solve at least a part of the problems described above, and can be realized as the following forms or application examples.
- a cylindrical metal shell extending in the axial direction, and a cylindrical shape provided at the tip of the metal shell, having a shorter length along the axial direction than the metal shell and reducing the diameter toward the tip A cap-shaped housing, a rear end portion disposed in the housing, a tip portion projecting from a tip end of the cap portion, and a rod-like heater portion movable along the axial direction, and the axial direction
- a glow plug with a combustion pressure sensor wherein the cap part is formed of a material having a higher tensile strength or proof stress than a material of the metal shell, and the metal shell is formed of the cap part.
- Than charge, having a combustion pressure sensor glow plug characterized in that it is formed by the thermal expansion coefficient is large material.
- Application Example 2 The glow plug with a combustion pressure sensor according to Application Example 1, wherein the cap portion includes a cylindrical cylindrical portion on a rear end side, and the thickness of the metal shell is set to the cylinder
- the present invention can be configured as a glow plug with a combustion pressure sensor as described above, a manufacturing method of a glow plug with a combustion pressure sensor, an internal combustion engine equipped with a glow plug with a combustion pressure sensor, and the like.
- the cap portion is formed of a material having a higher tensile strength or proof strength than the material of the metal shell, the cap portion where the stress during tightening concentrates. The rigidity can be increased.
- the metal shell having a length longer than that of the cap portion is formed of a material having a larger coefficient of thermal expansion than the material of the cap portion, the thermal expansion of the glow plug can follow the thermal expansion of the engine head. It becomes possible. As a result, even when the combustion pressure in the combustion chamber is high or the thermal expansion coefficient of the engine head is large, the airtightness between the combustion chamber and the glow plug is not increased without excessively increasing the initial tightening axial force. It becomes possible to ensure the sex.
- the thickness of the metal shell is thicker than the cylindrical portion provided on the rear end side of the cap portion, so that the rigidity of the metal shell having a lower tensile strength or proof strength than the cap portion is increased. Can do.
- the connecting member is disposed in the cylindrical portion of the cap portion having a larger inner diameter and thinner than the metal shell, the coupling member is connected rather than disposed in the metal shell.
- the area of the member can be increased.
- the movable range of the heater section can be increased, and the performance of the pressure sensor can be improved.
- FIG. 1 is an explanatory diagram showing a configuration of a glow plug 100 as an embodiment of the present invention.
- 1A shows the overall configuration of the glow plug 100
- FIG. 1B shows a partial cross-sectional configuration
- FIG. 2 is an enlarged cross-sectional view in the vicinity of a cap portion 120 described later.
- the lower side of the axis O of the glow plug 100 in FIGS. 1 and 2 is the front end side of the glow plug 100 and the upper side is the rear end side.
- a downward direction along the axis O of the glow plug 100 is defined as an axial direction OD.
- the glow plug 100 includes a housing 130 having a metal shell 110 and a cap portion 120, and a heater portion 150.
- the metal shell 110 is a substantially cylindrical metal member.
- the metallic shell 110 is made of a high thermal expansion metal.
- the high thermal expansion metal refers to a metal having a tensile strength of 600 MPa or less and a thermal expansion coefficient of 14 ppm / ° C. or more in a temperature range of ⁇ 40 to 150 ° C., for example, SUS304, which is an austenitic stainless steel. SUS303, SUS316, etc. can be used.
- the length L1 along the axial direction OD of the metal shell 110 is longer than the length L2 of the cap portion 120, and can be, for example, 40 mm or more.
- a tool engaging portion 112 with which a tool for attaching the glow plug 100 to the internal combustion engine is engaged is formed at the rear end portion of the metal shell 110. Further, a screw portion 114 formed with a screw groove (not shown) for fixing the glow plug 100 to the engine head is provided on the tip side of the tool engaging portion 112. A plurality of wirings 116 that are electrically connected to an integrated circuit 166 (described later) and a central shaft 170 (described later) in the housing 130 are inserted into the rear end portion of the tool engaging portion 112.
- a cap 120 which is an annular metal member, is disposed at the tip of the metallic shell 110. As shown in FIG. 2, a cylindrical portion 122 having a substantially constant outer diameter is formed on the rear end side of the cap portion 120, and a tapered portion 124 that decreases in diameter toward the front end is formed on the front end side. .
- the length L2 along the axial direction OD of the cap portion 120 is shorter than the length L1 of the metal shell 110, and may be, for example, 15 mm or less.
- the cap part 120 is formed of a high strength metal having a high tensile strength (or proof stress).
- the high strength metal means a metal having a coefficient of thermal expansion of less than 14 ppm / ° C.
- the thickness T1 of the cylindrical portion 122 of the cap portion 120 is thinner than the thickness T2 of the metallic shell 110 on the tip side of the screw portion 114, and the inner diameter B1 of the cylindrical portion 122 is the metallic shell. 110 is larger than the inner diameter B2.
- the thickness T1 can be, for example, 0.5 to 1.0 mm, and the thickness T2 can be 0.7 to 1.2 mm.
- the glow plug 100 When the glow plug 100 is attached to the internal combustion engine, the glow plug 100 contacts the seat surface 210 of the plug attachment hole 200 of the engine head at the outermost corner portion 126 of the cap portion 120. By the contact (line contact) of the corner portion 126 with the seating surface 210, airtightness from the combustion chamber to the outside is maintained.
- the heater unit 150 includes a sheath tube 152, a heating coil 154, and insulating powder 155.
- the sheath tube 152 is formed of stainless steel or the like excellent in heat resistance and corrosion resistance, and has a tip end closed in a hemispherical shape and a rear end opened in the metal shell 110 as shown in FIG.
- the heating coil 154 is a wire-wound resistor and is disposed inside the distal end side of the sheath tube 152.
- a middle shaft 170 that is a metal bar-like member is inserted into the heater unit 150, and the rear end of the heating coil 154 is fixed to the tip of the middle shaft 170. Electric power is supplied to the heating coil 154 from the outside through the wiring 116 and the central shaft 170.
- the sheath tube 152 is filled with insulating powder 155 such as magnesium oxide having heat resistance in a gap with the heating coil 154.
- a seal member 156 for sealing the insulating powder 155 in the sheath tube 152 is inserted between the opened rear end of the sheath tube 152 and the middle shaft 170.
- the sheath tube 152 is subjected to a swaging process, whereby the denseness of the insulating powder 155 filled therein is enhanced, and the heat conduction efficiency is improved.
- the heater unit 150 having such a configuration is arranged such that the rear end side is disposed in the metal shell 110 and the front end side is projected from the opening 125 of the cap unit 120 toward the axial direction OD.
- an annular pressure sensor 160 disposed on the rear end side of the heater unit 150, a sensor fixing member 132 for fixing the pressure sensor 160 in the housing 130, and an axis O of the heater unit 150
- the sensor fixing member 132 is a substantially cylindrical member formed of stainless steel or the like.
- the sensor fixing member 132 is disposed along the inner periphery of the metallic shell 110, and a flange-shaped flange portion 133 is formed at the tip thereof.
- the flange portion 133 is welded to the front end surface of the metal shell 110.
- the outer periphery of the pressure sensor 160 is welded to the rear end of the sensor fixing member 132.
- the pressure sensor 160 is fixed near the central portion in the housing 130 by the sensor fixing member 132.
- the transmission sleeve 134 is a substantially cylindrical member formed of stainless steel or the like.
- the transmission sleeve 134 is disposed between the sensor fixing member 132 and the heater unit 150.
- the distal end of the transmission sleeve 134 is welded to the outer periphery of the heater portion 150 in the vicinity of the position where the flange portion 133 of the sensor fixing member 132 is formed. Further, the rear end of the transmission sleeve 134 is welded to the inner peripheral portion of the annular pressure sensor 160.
- the load generated by the displacement along the axis O of the heater unit 150 or the displacement along the axis O of the heater unit 150 is transmitted to the inner peripheral portion of the pressure sensor 160 by the transmission sleeve 134.
- the connecting member 180 (see FIG. 2) is an annular member having elasticity formed of stainless steel, nickel alloy or the like.
- the connecting member 180 includes a flange-like flange portion 182 provided on the rear end side, a thin-film-like flat portion 183 provided on the front end side, and a cylindrical portion 184 that connects the flange portion 182 and the flat portion 183.
- the flange portion 182 has an upper surface (rear end side surface) welded to the flange portion 133 of the sensor fixing member 132, and a lower surface (front end side surface) welded to the rear end surface of the cap portion 120.
- the flat portion 183 has a folded portion 185 that is folded toward the distal end side at the inner peripheral portion thereof.
- the connecting member 180 is welded to the outer periphery of the heater unit 150 at the folded portion 185.
- the flat portion 183 of the connecting member 180 is disposed in the cylindrical portion 122 of the cap portion 120.
- the heater unit 150 is connected to the housing 130 by the connecting member 180, and displacement along the axis O is allowed by the elastic force of the connecting member 180.
- the connecting member 180 also serves to ensure airtightness from the combustion chamber into the metal shell 110 by connecting the heater portion 150 and the housing 130.
- the pressure sensor 160 (see FIG. 1) includes an annular metal diaphragm 162 having a central opening 170 through which the central shaft 170 passes, and a piezoresistive element 164 joined to the upper surface (rear end surface) of the metal diaphragm 162. And.
- the metal diaphragm 162 is made of, for example, stainless steel.
- An integrated circuit 166 provided at a predetermined position in the housing 130 is electrically connected to the piezoresistive element 164. As described above, the rear end of the transmission sleeve 134 connected to the heater unit 150 is joined to the inner periphery of the metal diaphragm 162.
- the transmission sleeve 134 transmits the load or the amount of displacement generated by the displacement to the metal diaphragm 162, thereby bending the metal diaphragm 162.
- the integrated circuit 166 detects the combustion pressure of the internal combustion engine by detecting the deformation of the metal diaphragm 162 using the piezoresistive element 164.
- the integrated circuit 166 outputs an electrical signal indicating the combustion pressure thus detected to an external ECU or the like through the wiring 116 inserted at the rear end of the metal shell 110.
- the cap portion 120 is formed of a high-strength metal having a higher tensile strength (or proof stress) in a temperature range of ⁇ 40 to 300 ° C. than the material of the metal shell 110. . For this reason, it is possible to increase the rigidity of the cap portion 120 in which stress when the glow plug 100 is tightened is concentrated.
- the metal shell 110 which is the main metal part having a longer length than the cap part 120, is made of a high thermal expansion metal having a higher coefficient of thermal expansion in the temperature range of ⁇ 40 to 150 ° C. than the material of the cap part 120. Is formed by.
- the cap portion 120 is preferably formed of a material having a tensile strength (or proof stress) in the temperature range of ⁇ 40 to 300 ° C. of 900 MPa or more. Thereby, the rigidity of the cap part 120 can be further increased.
- the thermal expansion coefficient of the metal shell 110 is preferably formed of a material having a magnitude of 2/3 or more of the thermal expansion coefficient of the material constituting the engine head. . Thereby, it becomes possible to ensure sufficient airtightness between the combustion chamber and the glow plug 100.
- the cap portion 120 is formed of a high-strength metal, the thickness T1 of the cylindrical portion 122 can be made thinner than the thickness T2 of the metal shell 110. Therefore, the inner diameter B1 of the cylindrical portion 122 can be made larger than the inner diameter B2 of the metal shell 110, and thereby the area of the flat portion 183 of the connecting member 180 can be increased. As a result, since the movable range along the axis O of the heater unit 150 can be increased, the performance (for example, the S / N ratio) of the pressure sensor 160 can be improved.
- the thickness T1 of the cylindrical portion 122 can be made thinner than the thickness T2 of the metallic shell 110.
- the thickness T2 of the metallic shell 110 can be made thicker than the thickness T1 of the cylindrical portion 122. That's what it means. Therefore, it is possible to increase the rigidity of the metal shell 110 formed of a high thermal expansion metal in order to follow the thermal expansion of the engine head. Therefore, even when steel having the characteristics of high thermal expansion and high strength (high tensile strength or large proof stress) cannot be used, the metal shell 110 and the cap portion 120 have different characteristics as in this embodiment. By comprising with a material, it can suppress that the intensity
- the present invention is not limited to such an embodiment, and various configurations can be adopted without departing from the spirit of the present invention.
- the thickness T1 of the cap part 120 may be larger than the thickness T2 of the metal shell 110.
- the flat portion 183 of the connecting member 180 can be provided in the metal shell 110.
- the following various aspects can be adopted.
- the heater unit 150 is configured by embedding the heat generating coil 154 in the sheath tube 152, but other configurations are possible.
- the heater unit 150 may be configured as a ceramic heater in which a conductive ceramic is embedded in an insulating ceramic.
- the pressure sensor 160 is configured by the annular metal diaphragm 162 and the piezoresistive element 164.
- the configuration of the pressure sensor 160 is not limited to this, and a known pressure sensor employed in a glow plug with a combustion pressure sensor can be appropriately applied.
- the housing 130 and the heater unit 150 are connected by the connecting member 180 having the thin film-like flat part 183.
- the housing 130 and the heater unit 150 may be coupled by a bellows (bellows) -shaped member.
- the heater unit 150 and the pressure sensor 160 are connected via the transmission sleeve 134. However, the rear end portion of the heater unit 150 is directly connected to the pressure sensor 160. Also good.
- power is supplied to the heater unit 150 through the middle shaft 170.
- the middle shaft 170 may be omitted, and power may be directly supplied from the wiring 116 to the heater unit 150.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Resistance Heating (AREA)
Abstract
Description
110…主体金具
112…工具係合部
114…ネジ部
116…配線
120…キャップ部
122…円筒部
124…テーパ部
125…開口部
126…角部
130…ハウジング
132…センサ固定部材
133…フランジ部
134…伝達スリーブ
150…ヒータ部
152…シース管
154…発熱コイル
155…絶縁粉末
156…シール部材
160…圧力センサ
161…開口部
162…金属ダイアフラム
164…ピエゾ抵抗素子
166…集積回路
170…中軸
180…連結部材
182…フランジ部
183…平面部
184…円筒部
185…折り返し部
200…プラグ取り付け孔
210…座面
Claims (3)
- 軸線方向に延びる筒状の主体金具と、前記主体金具の先端に設けられ、前記主体金具よりも前記軸線方向に沿った長さが短く、先端に向けて縮径する筒状のキャップ部と、
を有するハウジングと、
後端部が前記ハウジング内に配置され、先端部が前記キャップ部の先端から突出し、前記軸線方向に沿って移動可能な棒状のヒータ部と、
前記軸線方向に沿った前記ヒータ部の移動を可能としつつ、前記ヒータ部と前記ハウジングとを繋ぐ連結部材と、
前記ヒータ部を介して伝達される荷重に応じて、燃焼圧の検出を行う圧力センサと、を備える燃焼圧力センサ付きグロープラグであって、
前記キャップ部は、前記主体金具の材料よりも、引張強度または耐力が大きい材料により形成されており、
前記主体金具は、前記キャップ部の材料よりも、熱膨張率が大きい材料により形成されていることを特徴とする燃焼圧力センサ付きグロープラグ。 - 請求項1に記載の燃焼圧力センサ付きグロープラグであって、
前記キャップ部は、後端側に、円筒状の円筒部を備えており、
前記主体金具の厚みは、前記円筒部の厚みよりも厚いことを特徴とする燃焼圧力センサ付きグロープラグ。 - 請求項2に記載の燃焼圧力センサ付きグロープラグであって、
前記円筒部の内径は、前記主体金具の内径よりも大きく、
前記連結部材が、前記円筒部内に配置されていることを特徴とする燃焼圧力センサ付きグロープラグ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157008434A KR101579048B1 (ko) | 2011-02-25 | 2012-02-21 | 연소 압력센서 장착 글로 플러그 |
EP12748841.9A EP2679901B1 (en) | 2011-02-25 | 2012-02-21 | Glow plug with combustion pressure sensor |
JP2012525569A JP5363653B2 (ja) | 2011-02-25 | 2012-02-21 | 燃焼圧力センサ付きグロープラグ |
KR1020137024477A KR20130115385A (ko) | 2011-02-25 | 2012-02-21 | 연소 압력센서 장착 글로 플러그 |
US13/979,240 US20130291820A1 (en) | 2011-02-25 | 2012-02-21 | Glow plug with combustion pressure sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-039114 | 2011-02-25 | ||
JP2011039114 | 2011-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012114721A1 true WO2012114721A1 (ja) | 2012-08-30 |
Family
ID=46720515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/001134 WO2012114721A1 (ja) | 2011-02-25 | 2012-02-21 | 燃焼圧力センサ付きグロープラグ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130291820A1 (ja) |
EP (1) | EP2679901B1 (ja) |
JP (1) | JP5363653B2 (ja) |
KR (2) | KR101579048B1 (ja) |
WO (1) | WO2012114721A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014206354A (ja) * | 2013-04-16 | 2014-10-30 | 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 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5411363B2 (ja) * | 2011-02-25 | 2014-02-12 | 日本特殊陶業株式会社 | 燃焼圧検知センサ付きグロープラグ |
JP6151067B2 (ja) * | 2012-06-28 | 2017-06-21 | 日本特殊陶業株式会社 | 圧力センサ付きグロープラグ |
CN111075629A (zh) * | 2019-12-30 | 2020-04-28 | 安徽安鑫货叉有限公司 | 一种用于货叉自动预热点火机构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002276942A (ja) | 2001-03-16 | 2002-09-25 | Ngk Spark Plug Co Ltd | セラミックグロープラグ及びそのシリンダヘッドへの取付け構造 |
JP2004205148A (ja) | 2002-12-26 | 2004-07-22 | Ngk Spark Plug Co Ltd | グロープラグ及びグロープラグの取付け構造 |
JP2007177782A (ja) * | 2005-11-30 | 2007-07-12 | Ngk Spark Plug Co Ltd | 燃焼圧力センサ付きグロープラグ |
JP2009520941A (ja) * | 2005-12-23 | 2009-05-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | シース形グロープラグ |
JP2009243710A (ja) * | 2008-03-28 | 2009-10-22 | Ngk Spark Plug Co Ltd | グロープラグ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1637806B1 (de) * | 2004-09-15 | 2012-02-01 | Beru AG | Druckmessglühkerze für einen Dieselmotor |
JP5161121B2 (ja) * | 2008-03-28 | 2013-03-13 | 日本特殊陶業株式会社 | グロープラグ |
WO2010134320A1 (ja) * | 2009-05-18 | 2010-11-25 | シチズンファインテックミヨタ株式会社 | 燃焼圧センサ及び燃焼圧センサ付グロープラグ |
-
2012
- 2012-02-21 US US13/979,240 patent/US20130291820A1/en not_active Abandoned
- 2012-02-21 EP EP12748841.9A patent/EP2679901B1/en not_active Not-in-force
- 2012-02-21 KR KR1020157008434A patent/KR101579048B1/ko active IP Right Grant
- 2012-02-21 WO PCT/JP2012/001134 patent/WO2012114721A1/ja active Application Filing
- 2012-02-21 JP JP2012525569A patent/JP5363653B2/ja not_active Expired - Fee Related
- 2012-02-21 KR KR1020137024477A patent/KR20130115385A/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002276942A (ja) | 2001-03-16 | 2002-09-25 | Ngk Spark Plug Co Ltd | セラミックグロープラグ及びそのシリンダヘッドへの取付け構造 |
JP2004205148A (ja) | 2002-12-26 | 2004-07-22 | Ngk Spark Plug Co Ltd | グロープラグ及びグロープラグの取付け構造 |
JP2007177782A (ja) * | 2005-11-30 | 2007-07-12 | Ngk Spark Plug Co Ltd | 燃焼圧力センサ付きグロープラグ |
JP2009520941A (ja) * | 2005-12-23 | 2009-05-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | シース形グロープラグ |
JP2009243710A (ja) * | 2008-03-28 | 2009-10-22 | Ngk Spark Plug Co Ltd | グロープラグ |
Non-Patent Citations (1)
Title |
---|
See also references of EP2679901A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014206354A (ja) * | 2013-04-16 | 2014-10-30 | 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 |
Also Published As
Publication number | Publication date |
---|---|
KR20130115385A (ko) | 2013-10-21 |
JP5363653B2 (ja) | 2013-12-11 |
JPWO2012114721A1 (ja) | 2014-07-07 |
EP2679901B1 (en) | 2018-11-28 |
US20130291820A1 (en) | 2013-11-07 |
KR101579048B1 (ko) | 2015-12-21 |
EP2679901A1 (en) | 2014-01-01 |
EP2679901A4 (en) | 2018-03-21 |
KR20150044967A (ko) | 2015-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5838033B2 (ja) | 燃焼圧力センサ付きグロープラグ | |
JP2008002809A (ja) | 燃焼圧センサー | |
US8319153B2 (en) | Glow plug with metallic heater probe | |
US9891138B2 (en) | Pressure sensor | |
JP5363653B2 (ja) | 燃焼圧力センサ付きグロープラグ | |
JP5723461B2 (ja) | 圧力センサ付きグロープラグ | |
JP5901882B2 (ja) | 燃焼圧力センサ付きグロープラグ | |
JP5921957B2 (ja) | 圧力センサ付きグロープラグ及びその製造方法 | |
JP6096527B2 (ja) | グロープラグ | |
JP2007078330A (ja) | 燃焼圧センサ付きグロープラグ | |
US10048153B2 (en) | Pressure sensor including variable member having rear end connected to housing at a predetermined axial position | |
JP6166093B2 (ja) | 圧力センサ付きグロープラグ | |
JP2007085577A (ja) | 燃焼圧センサ付きグロープラグ | |
US20160177909A1 (en) | Glow plug with pressure sensor | |
JP2007085578A (ja) | 燃焼圧センサ付きグロープラグ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2012525569 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12748841 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012748841 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13979240 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20137024477 Country of ref document: KR Kind code of ref document: A |