EP3113575B1 - Heizelement und glühkerze - Google Patents

Heizelement und glühkerze Download PDF

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Publication number
EP3113575B1
EP3113575B1 EP15754614.4A EP15754614A EP3113575B1 EP 3113575 B1 EP3113575 B1 EP 3113575B1 EP 15754614 A EP15754614 A EP 15754614A EP 3113575 B1 EP3113575 B1 EP 3113575B1
Authority
EP
European Patent Office
Prior art keywords
lead terminal
ceramic body
heater
metal cap
conductor layer
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.)
Active
Application number
EP15754614.4A
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English (en)
French (fr)
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EP3113575A4 (de
EP3113575A1 (de
Inventor
Norimitsu Hiura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
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Kyocera Corp
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Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Publication of EP3113575A1 publication Critical patent/EP3113575A1/de
Publication of EP3113575A4 publication Critical patent/EP3113575A4/de
Application granted granted Critical
Publication of EP3113575B1 publication Critical patent/EP3113575B1/de
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/027—Heaters specially adapted for glow plug igniters

Definitions

  • the present invention relates to heaters for use in, for example, combustion vehicle heating systems, kerosene fan heaters, glow plugs for automobile engines, various sensors such as oxygen sensors, or measurement devices.
  • the present invention also relates to glow plugs including the heaters.
  • a ceramic heater described in, for example, Patent Document 1 is an example of heaters for use in combustion vehicle heating systems, kerosene fan heaters, glow plugs for automobile engines, various sensors such as oxygen sensors, or measurement devices.
  • the ceramic heater described in Japanese Unexamined Utility Model Registration Application Publication No. 63-80456 (hereinafter referred to as Patent Document 1) includes a rod-shaped ceramic body in which a heating resistor is embedded, and a metal cap provided so as to cover a side surface of the ceramic body.
  • the metal cap is electrically connected to the heating resistor, and serves as an electrode.
  • the metal cap has a through hole at the center thereof. A lead terminal extends through the through hole, and the lead terminal is bonded to the metal cap in this state.
  • the lead terminal when electricity is supplied to the heating resistor through the lead terminal, the lead terminal may be heated to a high temperature due to an inrush current that flows through the lead terminal. Accordingly, the metal cap may also be heated to a high temperature by heat transmitted from the lead terminal. As a result, there is a possibility that the lead terminal will be pulled out of the metal cap due to thermal expansion of the metal cap. Accordingly, it is difficult to improve the long-term reliability of the ceramic heater in heat cycles.
  • JP 2002 257341 A discloses that a ceramic glow plug comprises a ceramic heater having a heating resistor on the forward end side and an electrode lead-out part being connected with the heating resistor. This document further discloses that the electrode lead-out part is exposed to the rear end face of the ceramic heater and a nail head pin forming an anode metal is brazed to the rear end face (cf. abstract) and that a cap is boned to the rear end face of the ceramic heater so as to cover the nail head pin (cf. paragraph [0023]).
  • JP S62 175523 A discloses that a glow plug comprises a ceramic heater having a metal conducting wire and a terminal cap (cf. figure 3 ).
  • JP S61 76824 A discloses a glow plug comprising a ceramic heater, a metal wire and a terminal cap (cf. figure 1 ) .
  • JP S60 114630 A discloses that a glow plug comprises a heater rod made of ceramic, a conducting wire and a terminal cap (cf. figure 4 ).
  • JP H04 43721 Y2 discloses that a glow plug comprises a ceramic sintered body, an external electrode taking out wire and an electrode clasp (cf. figure 3 ).
  • the present invention provides a heater according to claim 1 and a glow plug according to claim 5. Further embodiments of the present invention are described in the dependent claims.
  • Fig. 1 is a sectional view of the heater 10.
  • the heater 10 includes a ceramic body 1, a heating resistor 2 embedded in the ceramic body 1, and a metal cap 4 that covers one end of the ceramic body 1.
  • a conductor layer 3 is provided on the one end of the ceramic body 1.
  • the hatched area shows the region in which the conductor layer 3 is provided.
  • the ceramic body 1 is, for example, a rod-shaped component.
  • the ceramic body 1 includes a tapered portion 11 at the one end thereof.
  • the ceramic body 1 may be made of, for example, electrically insulating ceramics, such as oxide ceramics, nitride ceramics, or carbide ceramics. More specifically, alumina ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, etc., may be used.
  • the ceramic body 1 is preferably made of a silicon nitride ceramic. Silicon nitride ceramics are advantageous in that silicon nitride, which is the main component, is strong, tough, highly insulative, and highly resistant to heat.
  • the ceramic body 1 made of a silicon nitride ceramic may be obtained by, for example, mixing silicon nitride, which is the main component, with 5 to 15 mass% of a rare earth element oxide, such as Y 2 O 3 , Yb 2 O 3 , or Er 2 O 3 , which serves as a sintering additive, and 0.5 to 5 mass% of Al 2 O 3 ; forming the mixture into a predetermined shape; and performing hot-press firing at 1650°C to 1780°C.
  • the length of the ceramic body 1 is set to, for example, 20 to 50 mm, and the diameter of the ceramic body 1 is set to, for example, 2.5 to 5 mm.
  • the length of the ceramic body 1 is about 20 to 40 mm and the diameter of the ceramic body 1 is about 3 mm
  • the length of the tapered portion 11 may be set to about 1.5 mm
  • the diameter of the end surface of the tapered portion 11 may be set to about 1.5 mm.
  • the ceramic body 1 is made of a silicon nitride ceramic and the heating resistor 2 is made of molybdenum (Mo) or tungsten (W), MoSi 2 or WSi 2 , for example, is preferably mixed and dispersed in the ceramic body 1.
  • Mo molybdenum
  • W tungsten
  • MoSi 2 or WSi 2 for example, is preferably mixed and dispersed in the ceramic body 1.
  • the coefficient of thermal expansion of the silicon nitride ceramic which is the base material, can be set to a value close to the coefficient of thermal expansion of the heating resistor 2, and the durability of the heater 10 can be increased.
  • the heating resistor 2 is a resistor for generating heat, and generates heat when a current flows therethrough.
  • the heating resistor 2 is embedded in the ceramic body 1.
  • the heating resistor 2 is provided at the other end of the ceramic body 1.
  • the heating resistor 2 includes a heating portion 21, which is a portion that mainly generates heat, and lead portions 22 that are connected to the heating portion 21.
  • the heating portion 21 has a folded shape, such as a letter 'U' shape, and both ends thereof are separately connected to the respective lead portions 22.
  • the heating portion 21 having the folded shape generates a maximum amount of heat in a central region of the folded portion.
  • the distance from one end of the heating portion 21 to the other end of the heating resistor 2 in the length direction of the ceramic body 1 is set to, for example, 2 to 10 mm.
  • the lead portions 22 are components for electrically connecting the heating portion 21 to an external power supply. One end of each lead portion 22 extends to a surface of the ceramic body 1, and the other end is connected to an end portion of the heating portion 21. The lead portions 22 are separately connected to both ends of the heating portion 21. One of the lead portions 22 extends to an end surface of the ceramic body 1 at the one end thereof. In Fig. 2 , the location at which the lead portion 22 extends to the end surface is indicated by the broken line. The other lead portion 22 extends to an outer peripheral surface of the ceramic body 1 in a region near the one end thereof.
  • the heating resistor 2 may be made be made of a material having, for example, a carbide, nitride, or silicide of W, Mo, titanium (Ti) or the like as the main component.
  • the heating resistor 2 may contain the same material as the material of the ceramic body 1, so that the ceramic body 1 and the heating resistor 2 have close coefficients of thermal expansion.
  • the heating portion 21 has a high resistance, and generates a maximum amount of heat in a region around the folded portion.
  • the resistance per unit length of the lead portions 22 is set to a value smaller than that of the heating portion 21 by, for example, making the content of the material of the ceramic body 1 in the lead portions 22 smaller than that in the heating portion 21, or making the cross section of the lead portions 22 larger than that of the heating portion 21.
  • the conductor layer 3 is a component for electrically connecting the heating resistor 2 to an external electrode.
  • the conductor layer 3 is provided on at least one end surface of the ceramic body 1. More specifically, the conductor layer 3 is provided on the outer peripheral surface and end surface of the tapered portion 11.
  • the conductor layer 3 is electrically connected to the heating resistor 2.
  • the conductor layer 3 includes a metallized layer and a plating layer stacked on the metallized layer.
  • the metallized layer may be, for example, a metallized layer containing silver, copper, or titanium, or a metallized layer containing gold, nickel, or palladium (Pd).
  • the plating layer may be, for example, a nickel boron plating layer, a gold plating layer, or a nickel plating layer.
  • the thickness of the metallized layer may be set to, for example, about 5 to 40 ⁇ m. The thickness of the plating layer is preferably greater than or equal to, for example, 1 ⁇ m.
  • the metal cap 4 is a meal component including a bottom portion 41 and a side portion 42.
  • the metal cap 4 may be made of, for example, a metal material such as a stainless steel or an iron-nickel-cobalt (Fe-Ni-Co) alloy. In particular, from the viewpoint of thermal expansion, an iron-nickel-cobalt (Fe-Ni-Co) alloy is preferably used.
  • the metal cap 4 is a component for strongly connecting the conductor layer 3 to the external electrode. As illustrated in Fig. 3 , the metal cap 4 is arranged so as to cover the one end of the ceramic body 1 and at least a portion of the conductor layer 3, and is electrically connected to the conductor layer 3.
  • the metal cap 4 has a shape corresponding to the tapered shape of the one end of the ceramic body 1. More specifically, the bottom portion 41 has the shape of a substantially circular plate having a through hole 7 in a central region thereof.
  • the side portion 42 is shaped such that the side portion 42 is substantially annular in cross section perpendicular to the axial direction of the ceramic body 1, and such that the side portion 42 expands as the distance from the bottom portion 41 increases.
  • the metal cap 4 is attached to the ceramic body 1 such that the bottom portion 41 faces the one end of the ceramic body 1 and the side portion 42 extends from the one end so as to cover a portion of the side surface of the tapered portion 11 over an annular region.
  • the side portion 42 has a slit 43.
  • the shape of the metal cap 4 can be changed in accordance with the shape of the ceramic body 1 as appropriate.
  • the heater 10 further includes a lead terminal 5 that extends through the through hole 7 and that is bonded to the metal cap 4.
  • the lead terminal 5 is a component for electrically connecting the conductor layer 3 to the external electrode.
  • the lead terminal 5 is made of, for example, a metal material such as nickel or a stainless steel.
  • the lead terminal 5 is a linear component, and an end portion 9 thereof, which is disposed in a gap between the bottom portion 41 of the metal cap 4 and the conductor layer 3 provided on the end surface of the ceramic body 1, is bonded to the metal cap 4. Accordingly, the metal cap 4 and the lead terminal 5 can be more strongly bonded together than when the lead terminal 5 is simply bonded to the outer surface of the bottom portion 41 of the metal cap 4.
  • the end portion 9 of the lead terminal 5, which is disposed in the gap includes a part that is outside the through hole 7 when viewed in a penetrating direction of the through hole 7. More specifically, the end portion 9 of the lead terminal, which is disposed in the gap between the metal cap 4 and the end surface of the ceramic body 1, extends over an area greater than the through hole 7. Therefore, even when there is a risk that the lead terminal 5 will be pulled out of the metal cap 4, such a risk can be reduced because the end portion 9 of the lead terminal 5 engages with the bottom portion 41 of the metal cap 4. As a result, the long-term reliability of the heater 10 in heat cycles can be improved.
  • the end portion 9 of the lead terminal 5 extends over a disc-shaped region. Accordingly, the risk of occurrence of local stress concentration in the end portion 9 of the lead terminal 5 can be reduced. As a result, the durability of the lead terminal 5 can be increased.
  • the end portion 9 of the lead terminal 5 is apart from the metal cap 4, and a conductive bonding agent 8, with which the metal cap 4, the conductor layer 3, and the end portion 9 of the lead terminal 5 are bonded together, is in the gap. Since the conductive bonding agent 8 is provided, when an external force that pulls the lead terminal 5, that is, an external force that presses the end portion 9 of the lead terminal 5 against the metal cap 4, is applied to the lead terminal 5, the bonding agent 8 serves as a layer that absorbs the external force. Therefore, the risk that the lead terminal 5 will be damaged can be reduced.
  • the bonding agent 8 may be provided so as to spread over the space between the bottom portion 41 and the conductor layer 3 but not over the space between the side portion 42 and the conductor layer 3. In such a case, the thermal stress generated between the metal cap 4 and the ceramic body 1 can be reduced.
  • the through hole 7 may be filled with the bonding agent 8. In such a case, the lead terminal 5 and the metal cap 4 can be strongly bonded together.
  • the bonding agent 8 is preferably provided so as to not only fill the through hole 7 but also spread along the lead terminal 5 in a region outside the metal cap 4. In such a case, the lead terminal 5 and the metal cap 4 can be more strongly bonded together.
  • the conductive bonding agent 8 may be, for example, a brazing material. In Figs. 1 to 3 , the bonding agent 8 is omitted to simplify the drawings.
  • the end portion 9 of the lead terminal 5 is spaced from the conductor layer 3. Accordingly, even when the lead terminal 5 is heated to a high temperature due to the inrush current that flows while electricity is being supplied, the possibility that the stress will be generated between the lead terminal 5 and the conductor layer 3 can be reduced. As a result, the possibility that the conductor layer 3 will crack can be reduced.
  • the end portion 9 of the lead terminal 5 is preferably separated from the conductor layer 3 by, for example, about 0.05 to 0.2 mm.
  • the dimensions of the end portion 9 of the lead terminal 5 may be set, for example, as follows. For example, when the diameter of the ceramic body 1 is 3 mm, the inner diameter of the bottom portion 41 of the metal cap 4 is about 1.8 mm, the length of the side portion 42 of the metal cap 4 in the longitudinal direction of the ceramic body 1 is about 1.2 mm, the thickness of the bottom portion 41 and the side portion 42 is about 0.3 mm, and the diameter of the through hole 7 is about 0.1 to 0.7 mm, the diameter of the end portion 9 of the lead terminal 5 may be set to a value in the range of about 0.2 to 1.7 mm that is greater than the diameter of the through hole 7, and the thickness of the end portion 9 of the lead terminal 5 may be set to about 0.1 to 1 mm.
  • a glow plug 100 includes the above-described heater 10 and a cylindrical metal member 6 attached to a portion of the side surface of the heater 10 that is adjacent to the tapered portion 11.
  • the metal member 6 is a component for holding the ceramic body 1.
  • the metal member 6 is a cylindrical component, and is provided so as to surround the one end of the ceramic body 1. In other words, the ceramic body 1 is inserted in the metal member 6.
  • the metal member 6 is electrically connected to the other lead portion 22 that extends to the region near the one end of the ceramic body 1.
  • the metal member 6 is made of, for example, a stainless steel, an iron-nickel-cobalt (Fe-Ni-Co) alloy, or a nickel alloy.
  • the metal member 6 and the ceramic body 1 are bonded together with a brazing material.
  • the brazing material is provided so as to surround the end portion of the ceramic body 1.
  • the brazing material is provided in the form of a layer over the entire circumference of the end portion of the ceramic body 1. Accordingly, the metal member 6 and the ceramic body 1 are strongly bonded together.
  • the brazing material may be, for example, silver-copper (Ag-Cu) solder, Ag solder, or Cu solder containing 5 to 30 mass% of glass component.
  • the glow plug 100 includes the heater 10 in which the possibility that the lead terminal 5 will be pulled out is reduced, and therefore has an improved long-term reliability in heat cycles.
  • the lead terminal 5 may have various shapes depending on the use thereof. More specifically, as illustrated in Fig. 5 , the lead terminal 5 may have a shape obtained by bending a single lead wire. More specifically, the lead terminal 5 may be L-shaped such that the end portion 9 thereof extends in a direction that crosses the penetrating direction of the through hole 7. In the case where the lead terminal 5 is shaped as illustrated in Fig. 5 , when a stress that pulls the lead terminal 5 in the penetrating direction of the through hole 7 is applied, the lead terminal 5 may be deformed so as to absorb the stress.
  • the lead terminal 5 may be T-shaped such that the end portion 9 thereof extends in a direction that crosses the penetrating direction of the through hole 7. Also in this case, the possibility that the lead terminal 5 will be pulled out of the metal cap 4 can be reduced.
  • the end portion 9 of the lead terminal 5 may be X-shaped such that two linear parts thereof intersect.
  • the stress generated between the lead terminal 5 and the metal cap 4 can be distributed over a plurality of parts. Therefore, the possibility that the lead terminal 5 will be damaged can be reduced.
  • the surface area of the end portion 9 of the lead terminal 5 is smaller than that in the case where the end portion 9 of the lead terminal 5 is disc-shaped. As a result, the amount of heat generated by the heating resistor 2 and transmitted to the lead terminal 5 can be reduced.
  • the portion of the lead terminal 5 that extends in the axial direction and the disc-shaped end portion 9 may be formed either integrally, as illustrated in Fig. 1 , or separately. More specifically, as illustrated in Fig. 8 , the portion of the lead terminal 5 that extends in the axial direction may be formed in the shape of a nail, and the end portion 9 that extends over a region broader than a head 51 of the nail-shaped portion may be disposed between the through hole 7 and the head of the nail-shaped portion. In this case, when the lead terminal 5 is used in heat cycles, the possibility that the portion of the lead terminal 5 that extends in the axial direction and the end portion 9 will be separated from each other can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Claims (5)

  1. Eine Heizvorrichtung (10), aufweisend
    einen Keramikkörper (1) mit einer Stabform,
    einen Heizwiderstand (2), der in den Keramikkörper eingebettet ist,
    eine Leiterschicht (3) auf mindestens einer Endfläche des Keramikkörpers, die elektrisch mit dem Heizwiderstand (2) verbunden ist,
    eine Metallkappe (4), die an einem Endabschnitt des Keramikkörpers (1) an einer Stelle nahe bei der Endfläche angebracht ist, wobei die Metallkappe (4) mindestens einen Abschnitt der Leiterschicht (3) und der Endfläche mit einem Spalt dazwischen bedeckt und ein Durchgangsloch (7) aufweist, und
    einen Leitungsanschluss (5), der in das Durchgangsloch (7) eingesetzt und elektrisch mit der Leiterschicht (3) verbunden ist,
    wobei ein Endabschnitt (9) des im Spalt angeordneten Leitungsanschlusses (5) einen Abschnitt aufweist, der sich bei einer Betrachtung in einer Durchdringungsrichtung des Durchgangslochs (7) außerhalb des Durchgangslochs (7) befindet,
    wobei die Metallkappe (4) einen Bodenabschnitt (41) und einen Seitenabschnitt (42), aufweist,
    wobei die Heizvorrichtung dadurch gekennzeichnet ist, dass die Metallkappe (4)
    einen Schlitz (43) aufweist, der vom Seitenabschnitt (42) aus mit dem Durchgangsloch (7) verbunden ist.
  2. Die Heizvorrichtung (10) gemäß Anspruch 1, wobei der Endabschnitt (9) des Leitungsanschlusses (5) scheibenförmig ist.
  3. Die Heizvorrichtung (10) gemäß Anspruch 1 oder 2, wobei der Endabschnitt (9) des Leitungsanschlusses (5) von der Metallkappe (4) getrennt ist, und ein leitfähiges Verbindungsmittel (8), das die Metallkappe (4), die Leiterschicht (3) und den Endabschnitt (9) des Leitungsanschlusses (5) miteinander verbindet, in dem Spalt angeordnet ist.
  4. Die Heizvorrichtung (10) gemäß irgendeinem der Ansprüche 1 bis 3, wobei der Endabschnitt (9) des Leitungsanschlusses (5) von der Leiterschicht (3) getrennt ist.
  5. Eine Glühkerze (100), aufweisend:
    die Heizvorrichtung (10) gemäß irgendeinem der Ansprüche 1 bis 4 und
    ein zylinderförmiges Metallelement (6), das an dem Keramikkörper (1) angebracht ist, wobei das zylinderförmige Metallelement (6) eine Seitenfläche des Keramikkörpers (1) an einer Stelle nahe bei der Endfläche bedeckt.
EP15754614.4A 2014-02-26 2015-02-25 Heizelement und glühkerze Active EP3113575B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014035719 2014-02-26
PCT/JP2015/055334 WO2015129722A1 (ja) 2014-02-26 2015-02-25 ヒータおよびグロープラグ

Publications (3)

Publication Number Publication Date
EP3113575A1 EP3113575A1 (de) 2017-01-04
EP3113575A4 EP3113575A4 (de) 2017-10-11
EP3113575B1 true EP3113575B1 (de) 2019-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15754614.4A Active EP3113575B1 (de) 2014-02-26 2015-02-25 Heizelement und glühkerze

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EP (1) EP3113575B1 (de)
JP (1) JP6204566B2 (de)
WO (1) WO2015129722A1 (de)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114630A (ja) * 1983-11-28 1985-06-21 Jidosha Kiki Co Ltd デイ−ゼルエンジン用グロ−プラグの製造方法
JPS60216126A (ja) * 1984-04-12 1985-10-29 Ngk Spark Plug Co Ltd 二線式セラミツクグロ−プラグ
JPS6176824A (ja) * 1984-09-19 1986-04-19 Jidosha Kiki Co Ltd デイ−ゼルエンジン用グロ−プラグの製造方法
JPH0443721Y2 (de) * 1985-04-17 1992-10-15
JPS62175523A (ja) * 1986-01-27 1987-08-01 Jidosha Kiki Co Ltd デイ−ゼルエンジン用グロ−プラグ
JPS6391432A (ja) * 1986-10-03 1988-04-22 Jidosha Kiki Co Ltd デイ−ゼルエンジン用グロ−プラグの製造方法
JPH037734Y2 (de) * 1986-11-10 1991-02-26
JPH07167434A (ja) * 1993-12-15 1995-07-04 Nippondenso Co Ltd グロープラグ
JP2002257341A (ja) * 2001-02-26 2002-09-11 Kyocera Corp セラミックグロープラグ
JP2005315447A (ja) * 2004-04-27 2005-11-10 Kyocera Corp セラミックヒーターおよびグロープラグ
KR101195918B1 (ko) * 2008-01-29 2012-10-30 쿄세라 코포레이션 세라믹 히터 및 글로우 플러그
DE102009048643B4 (de) * 2009-09-30 2013-11-28 Borgwarner Beru Systems Gmbh Glühkerze und Verfahren zum Verbinden eines Stifts aus einer Funktionskeramik mit einer Metallhülse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP6204566B2 (ja) 2017-09-27
WO2015129722A1 (ja) 2015-09-03
JPWO2015129722A1 (ja) 2017-03-30
EP3113575A4 (de) 2017-10-11
EP3113575A1 (de) 2017-01-04

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