EP1794501A1 - Bougie d'allumage comprenant un capteur de pression de chambre de combustion - Google Patents

Bougie d'allumage comprenant un capteur de pression de chambre de combustion

Info

Publication number
EP1794501A1
EP1794501A1 EP05766798A EP05766798A EP1794501A1 EP 1794501 A1 EP1794501 A1 EP 1794501A1 EP 05766798 A EP05766798 A EP 05766798A EP 05766798 A EP05766798 A EP 05766798A EP 1794501 A1 EP1794501 A1 EP 1794501A1
Authority
EP
European Patent Office
Prior art keywords
glow plug
heating element
combustion chamber
plug according
channel
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.)
Withdrawn
Application number
EP05766798A
Other languages
German (de)
English (en)
Inventor
Oliver Glock
Christoph Kern
Steffen Schott
Jan Bahlo
Pavlo Saltikov
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 EP1794501A1 publication Critical patent/EP1794501A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • F02P19/025—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 with means for determining glow plug temperature or glow plug resistance
    • 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 a fuel engine, consisting essentially of a plug housing and a glow plug arranged in the plug housing, as well as a channel for measuring the combustion chamber pressure.
  • Diesel engines require a heat source for good start-up and warm-up behavior at low temperatures, which preheat either the gas mixture, the intake air or the combustion chamber.
  • glow plugs are usually proposed. These consist of a candle housing and a protruding from the candle housing Glow pin that protrudes in the assembled state of the glow plug from the cylinder head into the combustion chamber of a fuel engine. In general, the glow plugs of the glow plugs protrude by 4 mm into the combustion chamber of the fuel engine and heat the diesel-air mixture. The reached
  • Annealing temperature and afterglow of the glow plug have a significant impact on the exhaust emissions and fuel consumption of the fuel engine.
  • the glow plugs can be metallic heating tubes or ceramic glow plugs.
  • Sensor-integrated concepts in which a pressure sensor is arranged on or in the glow plug, have the advantage that no additional borehole has to be provided in the fuel-fired engine. This advantage increases all the more more, since in modern fuel engines, the space for attaching additional sensors is very limited.
  • the combustion chamber pressure is forwarded by means of an air column to the engine chamber side arranged combustion chamber pressure sensor.
  • Transfer principle of the combustion chamber pressure based on a gas column can be sensitive to coking, as penetrating and accumulating particles can affect the measurement.
  • the channel with at least one heating element is heated, whereby a coking of the channel during operation of the glow plug avoided or lowered to a tolerable level and thus the function of the combustion chamber pressure sensor is secured.
  • a production-technically favorable solution can be achieved by the representation of the channel via a profiled socket.
  • the bush is composed of an inner ring and an outer ring. This offers the advantage that in the transition region of the rings in manufacturing technology favorable manner, the heating element can be inserted.
  • the channel can have a catalytic coating, whereby the burnup temperature of the coking is reduced and thereby the durability of the glow plug is increased with the combustion chamber pressure sensor.
  • the heating element is operated with a map control, which leads to an additional energy savings.
  • thermosensor it is advantageous to monitor the temperature of the heating element by a temperature sensor or by detecting the electrical resistance of the heating element. This will ensure that the temperature in the channel permanently or in phases above the combustion temperature of the soot. This adjustment of the temperature takes place via the interaction of temperature sensor and heater.
  • the socket contains a temperature sensor and at the same time is close to the combustion chamber, it is also possible to detect the temperature in the combustion chamber. This allows additional conclusions about the course of the combustion and can thus be used for the emission improvement.
  • the heating of the socket also causes a heat transfer to the housing of the glow plug, so that deposits between the glow plug and the cylinder head are avoided. This caking of the glow plug is avoided in the cylinder head and facilitates a possible disassembly of the glow plug during maintenance.
  • Figure 1 shows a schematic view of the glow plug according to the invention
  • Figure 2 is a partial view of the housing of this glow plug in section
  • Figure 3 is a partial view of a socket this glow plug
  • Figure 4 shows a cross section through the socket and the housing of the glow plug
  • Figure 5 an inner ring of the socket with sintered heater. Description of the embodiment
  • FIG. 1 shows a schematic illustration of a glow plug 11 which is only partially implemented, with a housing 13, a glow plug 17 and a combustion chamber pressure sensor 19 in section.
  • the glow plug 11 is inserted by means of an external thread 12 of a tubular housing 13 made of metal in a cylinder head 14 of an internal combustion engine, in particular a diesel engine shown only partially.
  • the cylinder head 14 defines a combustion chamber 16 of the internal combustion engine.
  • a glow plug 17 of the glow plug 11 In the combustion chamber 16 partially extends a glow plug 17 of the glow plug 11, which is fixed in the housing 13 with a sleeve 18 shown in FIG.
  • Behind the side facing away from the combustion chamber 16 of the bush 18, a combustion chamber pressure sensor 19 is arranged in the housing 13.
  • the combustion chamber pressure sensor 19 is connected via a channel 21, as shown in Figures 3, 4, with the combustion chamber 16, so that during operation of the internal combustion engine gases of the combustion chamber 16 can act on the combustion chamber pressure sensor 19.
  • the channel 21 extends approximately parallel to the glow plug 17 on an inner wall of the housing 13, so that the risk of deposits in the channel 21 is kept small from the outset.
  • the inner wall 24 of the housing 13 could also have a corresponding profiling and the bush 18 could be cylindrical and smooth on the outside, which, depending on the production facilities, could lead to cost advantages.
  • a heating element 26 with which a burn-off temperature of at least 500 0 C in the channel 21 can be produced.
  • the heating element 26 is sintered in the bush 18.
  • the bushing 18 according to FIG. 4 has an inner ring 27 and an outer ring 28 carrying the profiling.
  • the heating element 26 which is preferably formed as a Schuffleander 29 according to Figure 5, embedded and optionally, in an electrically conductive material of the sleeve 18, with respect to the two rings 27, 28 electrically insulated. Due to the design of the heating element 26 as Bankffleander 29 reaches a largely homogeneous heat radiation of the heating element 26th Alternatively, the heating meander 29 could also be laminated in thick film technology between two films. This shows a production alternative that can lead to cost advantages.
  • this may have a catalytic coating 31.
  • the heating element 26 can be operated permanently or cyclically. These two modes of operation can be static at a fixed temperature or dynamically after timed heating cycles. Thus, an adaptation to the mode of operation of a control device for the internal combustion engine is possible.
  • the heating element 26 could also be operated with a map control, so that, for example, the engine temperature or the current operating point of the internal combustion engine for the heating of the channel 21 can be taken into account.
  • Outer ring 28 of the sleeve 18 is sintered, are monitored.
  • this monitoring could also be done by controlling the electrical resistance of the heating element 26.
  • the heating element 26 is operated with pulsed current and the temperature measurement for monitoring the electrical resistance of the heating element 26 in the intervals between the heating phases, so that the temperature measurement is decoupled from the operation of the heating element 26 and accurate.
  • the pressure measurement of the combustion chamber pressure can be performed system-accurate, since the cross-sectional area of the channel 21 can not be clogged and thus remains constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Measuring Fluid Pressure (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

La présente invention concerne une bougie d'allumage (11) comprenant: un capteur de pression de chambre de combustion (19) destiné à un moteur à combustion interne, comprenant principalement un boîtier (13) et un crayon de préchauffage (17) disposé dans le boîtier (13); et un canal (21) pour mesurer la pression dans la chambre de combustion. Un élément chauffant (26) qui est selon l'invention, relié au canal (21), empêche le capteur de pression de chambre de combustion (19) disposé à l'extrémité du canal (26), d'être exposé aux résidus de carbonisation ou de combustion. La bougie d'allumage (11) dotée du capteur de pression de chambre de combustion (19), est utilisée de préférence dans l'industrie automobile.
EP05766798A 2004-09-18 2005-07-18 Bougie d'allumage comprenant un capteur de pression de chambre de combustion Withdrawn EP1794501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004045383A DE102004045383A1 (de) 2004-09-18 2004-09-18 Glühkerze mit Brennraumdrucksensor
PCT/EP2005/053433 WO2006029923A1 (fr) 2004-09-18 2005-07-18 Bougie d'allumage comprenant un capteur de pression de chambre de combustion

Publications (1)

Publication Number Publication Date
EP1794501A1 true EP1794501A1 (fr) 2007-06-13

Family

ID=35004332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05766798A Withdrawn EP1794501A1 (fr) 2004-09-18 2005-07-18 Bougie d'allumage comprenant un capteur de pression de chambre de combustion

Country Status (5)

Country Link
US (1) US20080296281A1 (fr)
EP (1) EP1794501A1 (fr)
JP (1) JP4314303B2 (fr)
DE (1) DE102004045383A1 (fr)
WO (1) WO2006029923A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004063750A1 (de) * 2004-12-29 2006-07-13 Robert Bosch Gmbh Glühstiftkerze mit integriertem Brennraumdrucksensor
DE102007044967A1 (de) * 2007-09-19 2009-04-02 Beru Ag Glühkerze mit verkokungsoptimiertem Design, spezielle Ringspaltausbildung
DE102010011044B4 (de) * 2010-03-11 2012-12-27 Borgwarner Beru Systems Gmbh Verfahren zum Regeln einer Glühkerze
DE102013020998A1 (de) 2013-12-12 2014-07-31 Daimler Ag Brennraumdrucksensor zum Erfassen eines Drucks in einem Brennraum einer Verbrennungskraftmaschine
JP5964877B2 (ja) * 2014-03-25 2016-08-03 トヨタ自動車株式会社 筒内圧センサの制御装置
JP6370100B2 (ja) * 2014-05-16 2018-08-08 日本特殊陶業株式会社 燃焼圧検知センサ付きのグロープラグ
WO2016170874A1 (fr) * 2015-04-21 2016-10-27 ボッシュ株式会社 Bougie de préchauffage
DE102016226018A1 (de) 2016-12-22 2018-06-28 Robert Bosch Gmbh Glühkerze mit einem Brennraumdrucksensor für eine Brennkraftmaschine
DE102017216121A1 (de) * 2017-09-13 2019-03-14 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Verbrennungsmotors sowie Verbrennungsmotor
US11415060B2 (en) * 2018-09-12 2022-08-16 Pratt & Whitney Canada Corp. Igniter for gas turbine engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132842A1 (de) * 1991-10-02 1993-04-08 Beru Werk Ruprecht Gmbh Co A Gluehkerze mit sensorelement
JP3691649B2 (ja) * 1997-10-28 2005-09-07 日本特殊陶業株式会社 セラミックヒータ
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
FR2849911B1 (fr) * 2003-01-14 2005-03-04 Siemens Vdo Automotive Bougie pour moteur a combustion interne equipee d'un capteur de pression de chambre de combustion
FR2869391B1 (fr) * 2004-04-27 2006-07-14 Siemens Vdo Automotive Sas Bougie de prechauffage comportant un capteur de pression
DE102005051817B4 (de) * 2005-10-28 2008-06-05 Beru Ag Druckmessglüheinrichtung, insbesondere Druckmessglühkerze
AT503662B1 (de) * 2006-04-20 2007-12-15 Piezocryst Advanced Sensorics Glühkerze mit integriertem drucksensor
JP2008020176A (ja) * 2006-06-14 2008-01-31 Ngk Spark Plug Co Ltd センサ内蔵グロープラグ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006029923A1 *

Also Published As

Publication number Publication date
US20080296281A1 (en) 2008-12-04
JP2008513717A (ja) 2008-05-01
WO2006029923A1 (fr) 2006-03-23
DE102004045383A1 (de) 2006-03-23
JP4314303B2 (ja) 2009-08-12

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