EP1780468B1 - Druckmessglüheinrichtung - Google Patents

Druckmessglüheinrichtung Download PDF

Info

Publication number
EP1780468B1
EP1780468B1 EP06021416A EP06021416A EP1780468B1 EP 1780468 B1 EP1780468 B1 EP 1780468B1 EP 06021416 A EP06021416 A EP 06021416A EP 06021416 A EP06021416 A EP 06021416A EP 1780468 B1 EP1780468 B1 EP 1780468B1
Authority
EP
European Patent Office
Prior art keywords
pressure
support tube
pressure sensor
heater element
plug body
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.)
Not-in-force
Application number
EP06021416A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1780468A3 (de
EP1780468A2 (de
Inventor
Bernd Last
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
Beru AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beru AG filed Critical Beru AG
Publication of EP1780468A2 publication Critical patent/EP1780468A2/de
Publication of EP1780468A3 publication Critical patent/EP1780468A3/de
Application granted granted Critical
Publication of EP1780468B1 publication Critical patent/EP1780468B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • 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 invention relates to a Druckmessglüh adopted, in particular a Druckmessglühkerze with an electric heating element and a pressure sensor to which a lying on the heating element pressure is transmitted.
  • the features of the preamble of claim 1 are made DE 103 46 330 A1 known.
  • a pressure measuring annealing device or a pressure measuring glow plug with a heating rod as shown DE 10346 330A1 is known, is used in self-igniting internal combustion engines and in addition to the usual annealing function has a pressure measurement function, via which, for example, the pressure prevailing in the cylinder of the internal combustion engine pressure can be determined.
  • the object underlying the invention is to sheep a Druckmessglüh adopted, especially for a Druckmessglühkerze, which has a simple structure and is associated accordingly with low costs.
  • the single FIGURE shows a sectional view of the combustion chamber side part of a Druckmessglühkerze with the embodiment of the invention DruckmessSWstabes.
  • the Druckmessglühkerzenteil shown in the drawing essentially comprises a heating element 1, 2, 3, 4, which is arranged in a plug body 5 so that it projects axially thereof from the combustion chamber side.
  • the plug body 5 is sealed by a sealing seat 8 to the cylinder head of the internal combustion engine.
  • the heating rod 1, 2, 3, 4 consists of a heating element 1, which is preferably formed of a ceramic material, and a heating element 1 outside and in the combustion chamber side part with a certain play surrounding support tube 2.
  • a pressure sensor 3, for example, a piezoelectric Element may be and generates an electrical signal responsive to a mechanical stress, is arranged with a certain play between the heating element 1 and the support tube 2 such that a combustion chamber side lying on the heating element pressure is transmitted to the pressure sensor 3.
  • the support tube 2 may be made of a metal material, i. an electrically conductive material, so that it contacts the heating element 1, which is electrically contacted on the one hand via an inner pole 6, on the other hand via an outer pole 7 and thereby ensures the current return at the outer pole 7.
  • the support tube 2 is axially stretchable, clamped with the heating element 1 in the axial direction and forms together with the pressure sensor 3, a power circuit responsive to external pressures, such as the combustion pressures inside the cylinder of the internal combustion engine.
  • the axial extensibility of the support tube 2 can be adapted to the particular needs of the measurement task, that provided on the support tube 2, one or more bellows-like deformations are. Due to the formation of these bellows-like deformations, the elasticity in the axial direction can be adjusted as desired.
  • a press-in sleeve 4 is provided on the connection side in the support tube 2 so that it closes the power circuit.
  • the support tube 2 is crimped on the press-in sleeve 4, wherein the press-in sleeve 4 serves as a stable element, which makes it possible to compress the entire assembly of heating element 1, support tube 2, press-fit 4 and pressure sensor 3 tight in the plug body 5. This can be done by pressing the heating element 1 into the press-fit sleeve 4 or by radial force in the region of the press-in sleeve 4.
  • the contacting of the heating element 1 is effected by means of suitable lines which are integrated in the press-fit sleeve 4 or via a contact between the heating element 1 and the press-in sleeve 4.
  • the support tube 2 is arranged under an axial bias directly on the heating element 1 and is the pressure sensor 3 in the space between the heating element 1 and the support tube. 2
  • the support tube 2 has several functions, namely the construction of a bias voltage on the heating element 1, the power transmission to the pressure sensor 3 by the aforementioned support tube 2 is relieved, the support of the heating element 1, the power transmission of heating element 1 and the seal in the plug body fifth
  • the heating element 1 runs axially continuously from the combustion chamber side to the connection side to the inner pole 6 located there, it is also possible that the heating element 1 ends on the combustion chamber side of the pressure sensor 3 and this not as in the illustrated Embodiment in the form of a ring but as a solid, for example, cuboid or solid cylindrical element formed is.
  • the electrical connection is achieved instead of via the inner pole 6 in the illustrated embodiment via an external power supply.
  • the pressure sensor 3 consists for example of a temperature-stable piezoelectric quartz element or of an element of a piezoelectric functional ceramic.
  • a linear pressure / charge conversion can be set, which can be converted via a suitable electronics in a conventional voltage signal as the sensor output signal. Due to the thermally exposed mounting position, it is preferable to provide a temperature compensation of the measurement signal in the electronics.
  • the heating rod has been described in a Druckmessglühkerze with a plug body 5
  • the heating element can be used in any Druckmessglüh observed having a corresponding support for the heating element.
  • the heating element in the connection-side region in particular in the region of the press-in sleeve 4 in the holder fixedly arranged, for example, is press-fitted. It is also possible to weld the heating element in such a holder, in which case the press-in sleeve 4 does not necessarily have to be provided.
  • the pressure sensor of deformations of the holder e.g. the cylinder head of an internal combustion engine, in which the heating element is arranged, is decoupled.
  • the pressure measuring device operates in the following way: Due to the axially strained arrangement of the support tube 2 on the heating element 1 is located on the pressure sensor 3, an axial bias. If the heating element is subjected to an external pressure, this adds to the already existing on the pressure sensor 3 bias in Form of an additional force. The resulting voltage signal is tapped and processed to a pressure applied to the heating element 1 reproducing pressure signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP06021416A 2005-10-28 2006-10-12 Druckmessglüheinrichtung Not-in-force EP1780468B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005051817A DE102005051817B4 (de) 2005-10-28 2005-10-28 Druckmessglüheinrichtung, insbesondere Druckmessglühkerze

Publications (3)

Publication Number Publication Date
EP1780468A2 EP1780468A2 (de) 2007-05-02
EP1780468A3 EP1780468A3 (de) 2007-07-25
EP1780468B1 true EP1780468B1 (de) 2011-04-27

Family

ID=37694273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021416A Not-in-force EP1780468B1 (de) 2005-10-28 2006-10-12 Druckmessglüheinrichtung

Country Status (6)

Country Link
US (1) US7829824B2 (ko)
EP (1) EP1780468B1 (ko)
JP (1) JP5230924B2 (ko)
KR (1) KR101302439B1 (ko)
AT (1) ATE507437T1 (ko)
DE (2) DE102005051817B4 (ko)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011097A1 (de) * 2004-03-06 2005-09-22 Robert Bosch Gmbh Vorrichtung zur Erfassung des Brennraumdrucks bei einer Brennkraftmaschine
DE102004045383A1 (de) * 2004-09-18 2006-03-23 Robert Bosch Gmbh Glühkerze mit Brennraumdrucksensor
JP5047770B2 (ja) * 2007-12-19 2012-10-10 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
DE102008009441B4 (de) * 2008-02-13 2011-08-25 Beru AG, 71636 Druckmessglühkerze
JP2009243710A (ja) * 2008-03-28 2009-10-22 Ngk Spark Plug Co Ltd グロープラグ
JP5161121B2 (ja) * 2008-03-28 2013-03-13 日本特殊陶業株式会社 グロープラグ
DE102008017110B3 (de) * 2008-04-02 2009-09-10 Beru Ag Druckmessglühkerze
DE102008020510B4 (de) * 2008-04-23 2010-02-11 Beru Ag Vorrichtung und Verfahren zur Ermittlung des Brennraumdruckes
US8217309B2 (en) * 2008-12-15 2012-07-10 Federal-Mogul Italy Srl. Glow plug with pressure sensing canister
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
DE102010037476B4 (de) * 2010-09-10 2012-04-26 Borgwarner Beru Systems Gmbh Druckmessgerät
EP2472181B1 (en) 2010-12-22 2014-09-10 HIDRIA AET Druzba za proizvodnjo vzignih sistemov in elektronike d.o.o. Glow plug with a load sensing sleeve surrounding the heating rod outside the combustion chamber
EP2469171A1 (en) 2010-12-22 2012-06-27 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
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
DE102011007586A1 (de) * 2011-04-18 2012-10-18 Robert Bosch Gmbh Abdichtung für eine Heizvorrichtung, insbesondere für eine Glühkerze
DE102011054511B4 (de) * 2011-07-05 2013-08-29 Borgwarner Beru Systems Gmbh Glühkerze
US8857249B2 (en) 2011-08-22 2014-10-14 BorgWarner BERU Systems, GmbH Dual diaphragm combustion pressure measuring device
JP5965179B2 (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
DE102013101177B4 (de) 2013-02-06 2016-08-04 Borgwarner Ludwigsburg Gmbh Brennraumdruckmessgerät
JP5575291B2 (ja) * 2013-03-21 2014-08-20 日本特殊陶業株式会社 グロープラグ
DE102016114929B4 (de) * 2016-08-11 2018-05-09 Borgwarner Ludwigsburg Gmbh Druckmessglühkerze
DE102018108427B3 (de) * 2018-04-10 2019-07-25 Borgwarner Ludwigsburg Gmbh Heizstab für eine Glühkerze sowie Verfahren zur Herstellung eines Heizstabs und Glühkerze

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985932A (ja) * 1982-11-09 1984-05-18 Nippon Soken Inc 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
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
DE10205819A1 (de) 2002-02-13 2003-08-14 Bosch Gmbh Robert Vorrichtung zum Betrieb einer Brennkraftmaschine
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
DE10343521A1 (de) 2003-09-19 2005-04-21 Beru Ag Druckmessglühkerze für einen Dieselmotor
DE102004044727A1 (de) * 2003-09-19 2006-03-16 Beru Ag Druckmessglühkerze für einen Dieselmotor
DE10346330B4 (de) * 2003-10-06 2005-09-22 Beru Ag Druckmessglühkerze für einen Dieselmotor
FR2861836B1 (fr) 2003-10-29 2006-03-10 Siemens Vdo Automotive Bougie de prechauffage comprenant un capteur de pression et moteur ainsi equipe
JP2005180855A (ja) * 2003-12-22 2005-07-07 Bosch Automotive Systems Corp セラミックスヒータ型グロープラグ
US6948372B2 (en) * 2004-01-08 2005-09-27 Delphi Technologies, Inc. Method of connection to a spark plug pressure sensor
DE102004011098A1 (de) * 2004-03-06 2005-09-22 Robert Bosch Gmbh Vorrichtung zur Erfassung des Brennraumdrucks bei einer Brennkraftmaschine
DE102004011097A1 (de) * 2004-03-06 2005-09-22 Robert Bosch Gmbh Vorrichtung zur Erfassung des Brennraumdrucks bei einer Brennkraftmaschine
DE102004024341B3 (de) * 2004-05-17 2005-12-22 Beru Ag Druckmessglühkerze
JP2006300046A (ja) * 2004-08-05 2006-11-02 Ngk Spark Plug Co Ltd 燃焼圧検知機能付グロープラグ
DE102004047143A1 (de) 2004-09-29 2006-04-06 Robert Bosch Gmbh Piezoelektrischer Brennraum-Drucksensor mit einem Druckübertragungsstift
JP4316474B2 (ja) * 2004-11-02 2009-08-19 株式会社デンソー 燃焼室圧力検出装置
DE102004063749A1 (de) 2004-12-29 2006-07-13 Robert Bosch Gmbh Stahlmembran für Brennraumdrucksensoren
DE102005017802A1 (de) 2005-04-18 2006-10-19 Robert Bosch Gmbh Glühstiftkerze mit Brennraumdrucksensor und Dichtelement
US7214908B2 (en) * 2005-07-28 2007-05-08 Wlodarczyk Marek T Glow plug integrated pressure sensor with filter trap
JP4897467B2 (ja) * 2006-12-19 2012-03-14 日本特殊陶業株式会社 グロープラグおよびその製造方法
JP4386117B2 (ja) * 2007-08-30 2009-12-16 株式会社デンソー 燃焼圧センサ付きグロープラグ
JP5161121B2 (ja) * 2008-03-28 2013-03-13 日本特殊陶業株式会社 グロープラグ

Also Published As

Publication number Publication date
US20070095811A1 (en) 2007-05-03
DE102005051817B4 (de) 2008-06-05
DE102005051817A1 (de) 2007-05-03
EP1780468A3 (de) 2007-07-25
KR101302439B1 (ko) 2013-09-02
ATE507437T1 (de) 2011-05-15
EP1780468A2 (de) 2007-05-02
JP2007120939A (ja) 2007-05-17
DE502006009382D1 (de) 2011-06-09
KR20070045965A (ko) 2007-05-02
US7829824B2 (en) 2010-11-09
JP5230924B2 (ja) 2013-07-10

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