EP1500879A1 - Bougie à incandescence avec une détection intégrale de pression - Google Patents

Bougie à incandescence avec une détection intégrale de pression Download PDF

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Publication number
EP1500879A1
EP1500879A1 EP04014414A EP04014414A EP1500879A1 EP 1500879 A1 EP1500879 A1 EP 1500879A1 EP 04014414 A EP04014414 A EP 04014414A EP 04014414 A EP04014414 A EP 04014414A EP 1500879 A1 EP1500879 A1 EP 1500879A1
Authority
EP
European Patent Office
Prior art keywords
glow plug
combustion chamber
pressure
housing
glow
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.)
Granted
Application number
EP04014414A
Other languages
German (de)
English (en)
Other versions
EP1500879B1 (fr
Inventor
Thomas Moelkner
Andreas Reissner
Vera Wein
Rainer Bach
Armin Kussmaul
Steffen Carbon
Christoph Kern
Ralf Kaiser
Hans-Peter Didra
Andreas Gaiser
Markus Ledermann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1500879A1 publication Critical patent/EP1500879A1/fr
Application granted granted Critical
Publication of EP1500879B1 publication Critical patent/EP1500879B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 glow plug for arrangement in a combustion chamber of an internal combustion engine, consisting essentially from a arranged in a glow tube heating and control coil and a connected to the control coil connecting bolt, wherein the glow tube together with at least part of the connecting bolt surrounded by a housing and the glow plug an integrated pressure measuring device comprises.
  • the engines require a good start and warm-up behavior at low temperatures, a heat source, either the gas mixture, preheats the intake air or the combustion chamber.
  • a heat source either the gas mixture
  • glow plugs are used for this purpose. They protrude with their radiator in the combustion chamber of the internal combustion engine into it.
  • glow plugs are present in their Housing wall have a so-called pressure bore, which with a is coupled to the combustion chamber remote end disposed pressure transducer.
  • the pressure measurement itself is usually done via a pressure sensor, which mostly exploits the pressure sensitivity of piezoceramics.
  • the object of the invention is that provided for glow plugs Measurement of prevailing in a combustion chamber of an internal combustion engine Optimize printing and propose a cost-effective solution.
  • the solution to the problem is for the pressure measuring device to provide a pressure channel through at least one longitudinal groove on the inner wall of the housing in the combustion chamber near the area Housing is formed and up to a pressure transducer, the preferably arranged at the combustion chamber remote end of the glow plug is, extends.
  • the essential idea of the invention is that of a very costly long hole is omitted and with conventional Means a pressure line from the region of the combustion chamber near End of the housing to the end remote from the combustion chamber located pressure transducer is created.
  • One of the significant advantages of the invention is that due to the construction according to the invention, for the production of a Pressure channel is used, a very inexpensive and commercially available Pressure sensor can be used.
  • a particularly preferred embodiment provides that the Pressure channel from the combustion chamber near area of the glow plug in the housing and from there via a hole in the connecting bolt is led to the combustion chamber distant part of the glow plug, on the then installable via an adapter, the appropriate pressure transducer is.
  • a glow plug 1 according to the invention is shown. It consists of a radiator 2, which in turn consists of a glow tube 3, in which a filament 4 is embedded.
  • the Incandescent filament 4 consists of a heating coil 5 and a control coil 6, wherein the heating coil 5 with its free end with the glow tube. 4 and the control coil 6 with its other end with a connecting bolt 7 is connected.
  • the glow tube 3 is assigned to the combustion chamber near area 8. Of the Connecting bolt 7 extends into the combustion chamber remote area. 9 A part of the glow tube 3, which is assigned to the combustion chamber remote area 8 is, and a large part of the connecting bolt 7 are of surrounded by a housing 10.
  • This housing 10 serves to the entire To make glow plug 1 compact.
  • the housing 10 has its outside a thread 11, by means of which the glow plug 1 is mountable in the internal combustion engine.
  • the glow tube 3 in the Housing 10 pressed.
  • the housing 10 in the region of Press fit 12 between the glow tube 3 and housing 10 grooves 13, which extend in the longitudinal extent of the glow plug 1.
  • the connecting bolt 7 is formed in two parts, wherein the part of in the Direction glow tube 3 extends, formed as a solid material is and the part that with the holes (transverse bore 14 and longitudinal bore 15) is provided, is selected as a tube material.
  • a pressure sensor or pressure sensor 16 may advantageously a sensor can be provided, the pressure electromechanical, piezotechnical or optical in an electronically evaluable signal converts that via a signal line 17 to a measuring device is transmitted.
  • a Sealing element 18 is provided, which is designed such that this partly passes through the connecting bolt 7, but also the Supplying an electrical line 19 allows for the Heating the glow tube 3 is provided.
  • An insulating washer 20 prevents electrical contact arises in the direction of the pressure sensor 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
EP20040014414 2003-07-21 2004-06-19 Bougie à incandescence avec une détection intégrale de pression Expired - Lifetime EP1500879B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003132960 DE10332960A1 (de) 2003-07-21 2003-07-21 Glühstiftkerze mit integrierter Druckmessung
DE10332960 2003-07-21

Publications (2)

Publication Number Publication Date
EP1500879A1 true EP1500879A1 (fr) 2005-01-26
EP1500879B1 EP1500879B1 (fr) 2009-02-25

Family

ID=33482986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040014414 Expired - Lifetime EP1500879B1 (fr) 2003-07-21 2004-06-19 Bougie à incandescence avec une détection intégrale de pression

Country Status (2)

Country Link
EP (1) EP1500879B1 (fr)
DE (2) DE10332960A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017602A1 (fr) * 2006-08-09 2008-02-14 Siemens Aktiengesellschaft Procédé et dispositif de détermination d'une pression dans la chambre de combustion d'un moteur à combustion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025968A1 (de) * 2004-05-27 2005-12-15 Robert Bosch Gmbh Verkokungsschutz für eine Glühstiftkerze mit einem Glaskanal zur Druckmessung
DE102015205671A1 (de) 2015-03-30 2016-10-06 Robert Bosch Gmbh Brennraumdruckaufnehmer, Verbrennungskraftmaschine und Verfahren zur Messung eines Brennraumdrucks in einem Brennraum einer Verbrennungskraftmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134341A (ja) * 1983-01-21 1984-08-02 Nippon Soken Inc デイ−ゼルエンジンの噴射時期制御装置
DE4132842A1 (de) * 1991-10-02 1993-04-08 Beru Werk Ruprecht Gmbh Co A Gluehkerze mit sensorelement
WO1997009567A1 (fr) * 1995-09-05 1997-03-13 Unisia Jecs Corporation Detecteur de la pression interieure d'un cylindre de moteur diesel et son mode d'utilisation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134341A (ja) * 1983-01-21 1984-08-02 Nippon Soken Inc デイ−ゼルエンジンの噴射時期制御装置
DE4132842A1 (de) * 1991-10-02 1993-04-08 Beru Werk Ruprecht Gmbh Co A Gluehkerze mit sensorelement
WO1997009567A1 (fr) * 1995-09-05 1997-03-13 Unisia Jecs Corporation Detecteur de la pression interieure d'un cylindre de moteur diesel et son mode d'utilisation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0082, no. 62 (M - 341) 30 November 1984 (1984-11-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017602A1 (fr) * 2006-08-09 2008-02-14 Siemens Aktiengesellschaft Procédé et dispositif de détermination d'une pression dans la chambre de combustion d'un moteur à combustion

Also Published As

Publication number Publication date
DE502004009036D1 (de) 2009-04-09
EP1500879B1 (fr) 2009-02-25
DE10332960A1 (de) 2005-02-10

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