EP1238254A1 - Dispositif pour surveiller les processus de combustion se deroulant dans la chambre de combustion d'un moteur a combustion interne - Google Patents

Dispositif pour surveiller les processus de combustion se deroulant dans la chambre de combustion d'un moteur a combustion interne

Info

Publication number
EP1238254A1
EP1238254A1 EP00966016A EP00966016A EP1238254A1 EP 1238254 A1 EP1238254 A1 EP 1238254A1 EP 00966016 A EP00966016 A EP 00966016A EP 00966016 A EP00966016 A EP 00966016A EP 1238254 A1 EP1238254 A1 EP 1238254A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
housing
light
light guide
combustion
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Withdrawn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
EP00966016A
Other languages
German (de)
English (en)
Inventor
Michael Bargende
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.)
Fkfs Forschungsinstitut fur Kraftfahrwesen und Fahrzeugmotoren
Original Assignee
Fkfs Forschungsinstitut fur Kraftfahrwesen und Fahrzeugmotoren
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 Fkfs Forschungsinstitut fur Kraftfahrwesen und Fahrzeugmotoren filed Critical Fkfs Forschungsinstitut fur Kraftfahrwesen und Fahrzeugmotoren
Publication of EP1238254A1 publication Critical patent/EP1238254A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame

Definitions

  • the invention relates to a device of the type mentioned in the preamble of claim 1.
  • the light emitted by the flame in the combustion chamber is coupled out of the combustion chamber by means of light guides and fed to a light / voltage converter (photomultiplier, photodiode or CCD array).
  • the electrical voltage generated in these converters is proportional to the light intensity and can be converted into digital data that can be processed further using EDP technology using an AD converter.
  • These methods and devices therefore do not require any electrical auxiliary or supply voltages, or coupling in extraneous light (e.g. by laser light).
  • a device of the type mentioned in the preamble of claim 1 in the form of a spark plug for internal combustion engines in which a group of light guides is installed around the circumference of the spark plug housing To be able to analyze the ignition phase after the actual ignition and the early propagation phase of the flame.
  • this device only a partial area of the combustion chamber can be viewed, and a locally resolved observation of the flame propagation in engine combustion chambers is only possible to a limited extent even if several collecting bores provided in the spark plug only connect a few light guides of the group to one another.
  • a device known from DE-A1-198 23 594 in which a light guide integrated in a cylinder head gasket is provided, which establishes a connection between the combustion chamber and an evaluation unit.
  • the light guide opens into the combustion chamber via a translucent sealing element.
  • the invention has for its object to provide a device of the type mentioned that allows a locally resolved observation of the combustion processes without influencing the thermal or mechanical state of the combustion chamber and with a simple structure
  • the inventive design of the device allows a locally resolved observation of the flame propagation in engine combustion chambers without influencing the thermal or mechanical state of the combustion chamber and with a simple structure with a simple structure.
  • the device according to the invention can be used both in gasoline and in diesel engines.
  • Figure 1 is a plan view of the end of the measuring section of an embodiment the device
  • FIG. 2 shows a sectional view along the line A according to FIG. 1,
  • FIG. 3A shows a partial view of the housing according to FIG. 2, which shows the arrangement of the light guide and the light entry opening,
  • FIG. 3B shows a view corresponding to FIG. 3A of a modified embodiment
  • FIG. 3C shows a view corresponding to FIG. 3A of a further embodiment
  • FIG. 4A shows a perspective view of the end of an embodiment of the light guide on the combustion chamber side.
  • FIG. 4B shows a side view of the light guide according to FIG. 4A
  • FIG. 4C shows a front view of the light guide according to FIG. 4A
  • Figure 5 is a plan view of the end of an embodiment of the device in
  • FIG. 5A shows a partially cut away view of the embodiment according to FIG. 5,
  • FIG. 5B shows a view of a modified embodiment corresponding to part of FIG. 5A
  • Figure 6 is a plan view of the end of an embodiment of the device in
  • FIG. 6A shows a partially sectioned view of the embodiment according to FIG. 6, broken away;
  • FIG. 6B shows a view of a modified embodiment corresponding to part of FIG. 6A,
  • FIG. 7 shows an embodiment of an evaluation unit for a device according to one of FIGS. 1 to 6.
  • the embodiment of the device shown schematically in FIGS. 1 and 2 has, for example, a cylindrical housing or a holder 1 in which a number of bores, for example nine bores 3, are formed, in each of which a light guide 2 is arranged, the longitudinal axis of which is parallel to Longitudinal axis of the housing 1 runs.
  • a pressure sensor can also be installed (not shown) in order to enable simultaneous measurement of the sector-resolved light emission and of the combustion chamber pressure.
  • the ring of light guides can also surround the center electrode of a spark plug or an injection nozzle arrangement.
  • the cylindrical housing 1 typically has a diameter of 10-12 mm and can be installed by means of a thread in a bore provided for this purpose in a cylinder head, the upper end in FIG. 2 forming a measuring section which extends into the combustion chamber.
  • the bore can e.g. the glow plug hole are suitable.
  • the bores 3 in the housing 1 each have an end section 3A on the combustion chamber side, which extends at an angle to the longitudinal axis of the housing 1 and thus of the light guide through an outer surface of the measuring section into the (not shown) combustion chamber.
  • the combustion light can be coupled into the light guide 2 through the end sections 3A of the bores, as shown in FIG. 3A.
  • further light guides advantageously in the form of quartz glass rods 4
  • the surface of these quartz glass rods 4 on the combustion chamber side can be ground concavely or convexly as a lens in order to adjust the viewing angle 9 (FIGS. 5 and 6) according to requirements.
  • these quartz glass rods 4 essentially end with the outer surface of the measuring section. According to FIG. 3C, however, they can also be designed with an overhang which is dimensioned such that the lens reaches the temperature at all operating points of the internal combustion engine at which contamination by "free burning” is reliably prevented. This can be supported by coating the lens with a catalytically active layer (e.g. platinum) which is only a few nm (nanometers) thick - and therefore optically transparent - and which reduces the necessary "free-burning temperature" on the lens surface. If the quartz glass rods 4 are installed with a protrusion, an opaque coating of the cylindrical part of the rods should be provided in order to prevent the incidence of light from the side.
  • a catalytically active layer e.g. platinum
  • the combustion light incident via the end sections 3A of the bores 3 or the quartz glass rods 4 arranged therein is coupled into the light guides 2 mounted in the bores 3, the likewise quartz glass rods are coupled in with a diameter which is preferably larger than the diameter of the end sections 3A or the quartz glass rods 4 is.
  • quartz glass rods 2 are in turn provided with an opaque coating 7 in their cylindrical part.
  • a window 6, parallel to the longitudinal axis of the quartz glass rod 2, is ground in for coupling in the light, and an oblique surface 5, mirrored on the rear, is ground in order to deflect the light (B).
  • the angle of the mirrored surface is dimensioned in accordance with the angle ⁇ (FIG. 3A) of the end section 3A.
  • the angle of the inclined surface 5 and the lens cut of the quartz glass rods 4 are designed so that the entire combustion chamber can be viewed as uniformly as possible with all the light guides 2, 4 installed in the housing 1.
  • the light emerging from the quartz glass rods 2 is coupled into flexible light guide 20 in the housing 1 (see FIG. 2) and thus led out of the combustion chamber for further processing in an evaluation unit shown in FIG.
  • the combustion light is fed to corresponding light / voltage converters 21 (photomultipliers or photodiodes) for measuring the total light and converted there into an electrical voltage proportional to the light intensity.
  • This electrical voltage is amplified in amplifiers 22 (DC voltage amplifiers with a bandwidth of at least 100 kHz) and channel-wise supplied to an EDP-supported measurement data processing system (not shown).
  • the light signal from the light guides 20 is preferably divided into several branches in an optical light splitter 25, so that characteristic wavelengths (e.g. radiation of OH: 310 nm) for the combustion processes can be measured by means of optical filters 26.
  • characteristic wavelengths e.g. radiation of OH: 310 nm
  • 1 is formed by the jacket of a spark plug, as shown in Figures 5, 5A and 5B.
  • the angle ⁇ of the light entry holes formed by the end sections 3A and the lens cut of the quartz glass rods are designed so that with the light guides
  • the end sections 3A of the bores 3 or the quartz glass rods 4 arranged therein are positioned so that they lie exactly in the direction of the injection jets 14 emanating from the nozzle bores 13 and are designed with respect to their angle ⁇ in such a way that they are present in the piston recess which is always present in direct-injection diesel engines "see".
  • the end sections 3A open in the peripheral region of the housing 1. However, depending on the desired observation region, it is also possible for these end sections to open into the end face of the housing on the combustion chamber side.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

L'invention concerne un dispositif pour surveiller les processus de combustion se déroulant dans la chambre de combustion d'un moteur à combustion interne. Ce dispositif présente un carter (1) pouvant être intégré dans une paroi de la chambre de combustion et comprenant une section de mesure qui s'étend vers la chambre de combustion ainsi qu'un certain nombre d'orifices (3) s'étendant le long de l'axe longitudinal du carter, dans lesquels sont placés des guides d'ondes optiques (2). Une première extrémité de chaque guide d'ondes optiques, située dans une première extrémité de l'orifice, reçoit la lumière de l'intérieur de la chambre de combustion, et une deuxième extrémité de chaque guide d'ondes optiques est reliée à des unités d'évaluation optiques/électroniques. Les orifices présentent, à proximité du carter, une section terminale (3A) qui s'étend à partir du carter à travers une surface extérieure de la section de mesure, en formant un angle ( alpha ) par rapport à l'axe longitudinal du carter. La première extrémité du guide d'ondes optiques présente un orifice d'entrée de lumière orienté vers l'extrémité intérieure de la section terminale et une surface réfléchissante opposée audit orifice d'entrée de lumière, qui dévie la lumière incidente en direction de l'axe longitudinal du guide d'ondes optiques.
EP00966016A 1999-12-02 2000-09-14 Dispositif pour surveiller les processus de combustion se deroulant dans la chambre de combustion d'un moteur a combustion interne Withdrawn EP1238254A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19958122 1999-12-02
DE19958122 1999-12-02
PCT/EP2000/009003 WO2001040753A1 (fr) 1999-12-02 2000-09-14 Dispositif pour surveiller les processus de combustion se deroulant dans la chambre de combustion d'un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1238254A1 true EP1238254A1 (fr) 2002-09-11

Family

ID=7931188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00966016A Withdrawn EP1238254A1 (fr) 1999-12-02 2000-09-14 Dispositif pour surveiller les processus de combustion se deroulant dans la chambre de combustion d'un moteur a combustion interne

Country Status (4)

Country Link
US (1) US6882418B1 (fr)
EP (1) EP1238254A1 (fr)
JP (1) JP2003515736A (fr)
WO (1) WO2001040753A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018606B4 (de) * 2006-01-04 2008-05-08 Beru Ag Messglühkerze
AT503067B1 (de) * 2007-03-08 2008-08-15 Avl List Gmbh Zündkerze
WO2011040589A1 (fr) * 2009-09-30 2011-04-07 イマジニアリング株式会社 Bougie d'observation et système d'observation d'ignition
DE102012103628B4 (de) * 2012-04-25 2020-12-31 Avl Emission Test Systems Gmbh Vorrichtung zur Bestimmung der Konzentration zumindest eines Gases in einem Probengasstrom
JP2016138835A (ja) * 2015-01-28 2016-08-04 トヨタ自動車株式会社 内燃機関の筒内温度測定装置
DE112016006667T5 (de) * 2016-03-31 2018-12-20 Honda Motor Co., Ltd. Optische messsonde und damit versehene optische messvor-richtung

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703825A (en) * 1968-10-02 1972-11-28 Merlo Angelo L Combustion microwave diagnostic system
GB1483612A (en) * 1974-07-05 1977-08-24 Lumenition Ltd Detection of combustion in internal combustion engines
US4393687A (en) * 1980-01-18 1983-07-19 Robert Bosch Gmbh Sensor arrangement
AT379870B (de) * 1981-01-08 1986-03-10 List Hans Einrichtung zur beobachtung des verbrennungsablaufes im brennraum einer brennkraftmaschine
EP0071557B1 (fr) * 1981-07-23 1989-05-24 Ail Corporation Méthode et appareil pour produire un signal de début de combustion pour un moteur à allumage par compression
JPS5882039A (ja) * 1981-11-11 1983-05-17 Hitachi Ltd 内燃機関用空気燃料比制御装置
JPS59215928A (ja) * 1983-05-24 1984-12-05 Toyota Motor Corp デイ−ゼルエンジンの燃料噴射量制御方法
US4562821A (en) * 1984-05-11 1986-01-07 Toyota Jidosha Kabushiki Kaisha System for controlling the amount of recirculated exhaust gas for a diesel engine
US4665740A (en) * 1984-08-22 1987-05-19 Nippondenso Co., Ltd. Combustion process sensor
GB8601842D0 (en) * 1986-01-25 1986-02-26 Lucas Ind Plc Sensing device
JPH0684939B2 (ja) * 1986-08-13 1994-10-26 株式会社日立製作所 空燃比検出式燃焼センサ
GB8622723D0 (en) * 1986-09-20 1986-10-29 Lucas Ind Plc Engine sensors
GB8705905D0 (en) * 1987-03-12 1987-04-15 Lucas Ind Plc Combustion monitoring
ATE94348T1 (de) 1989-01-27 1993-10-15 Nestle Sa Herstellung von schnellkochreis.
JP2709159B2 (ja) 1989-02-27 1998-02-04 オリンパス光学工業株式会社 内視鏡装置
DE4006273A1 (de) 1990-02-28 1991-09-26 Forsch Kraftfahrwesen Und Fahr Verfahren und vorrichtung zur ermittlung des verlaufs des innendrucks eines zylinders einer kolbenmaschine
US5103789A (en) * 1990-04-11 1992-04-14 Barrack Technology Limited Method and apparatus for measuring and controlling combustion phasing in an internal combustion engine
US5219227A (en) * 1990-08-13 1993-06-15 Barrack Technology Limited Method and apparatus for determining burned gas temperature, trapped mass and NOx emissions in an internal combustion engine
US5283852A (en) * 1992-08-07 1994-02-01 The Texas A & M University System Apparatus and method for embedding optical fibers in metal
AT400769B (de) * 1992-10-16 1996-03-25 Avl Verbrennungskraft Messtech Messeinrichtung zum erfassen von verbrennungsvorgängen
US5421195A (en) * 1993-07-01 1995-06-06 Wlodarczyk; Marek T. Fiber optic microbend sensor for engine knock and misfire detection
US5390546A (en) * 1993-07-01 1995-02-21 Wlodarczyk; Marek T. Fiber optic diaphragm sensors for engine knock and misfire detection
US5421652A (en) * 1993-12-21 1995-06-06 General Electric Company Pyrometer adapter
US5922948A (en) * 1995-01-09 1999-07-13 Colorado Seminary Dba University Of Denver Thermal imaging system for internal combustion engines
US5763888A (en) * 1995-01-30 1998-06-09 Ametek Aerospace Products, Inc. High temperature gas stream optical flame sensor and method for fabricating same
AT403323B (de) * 1995-08-24 1998-01-26 Jenbacher Energiesysteme Ag Verfahren und einrichtung zum ermitteln eines klopfintensitätssignals eines verbrennungsmotors
US5659133A (en) * 1996-04-22 1997-08-19 Astropower, Inc. High-temperature optical combustion chamber sensor
US6622549B1 (en) * 1997-02-06 2003-09-23 Marek T. Wlodarczyk Fuel injectors with integral fiber optic pressure sensors and associated compensation and status monitoring devices
DE19710654C2 (de) 1997-03-14 2003-03-20 Iav Gmbh Optische Sonde zum Erfassen der Strahlung von Verbrennungsvorgängen, vorzugsweise in Brennräumen von Verbrennungsmotoren
US5961314A (en) * 1997-05-06 1999-10-05 Rosemount Aerospace Inc. Apparatus for detecting flame conditions in combustion systems
AT2114U1 (de) 1997-05-28 1998-04-27 Avl List Gmbh Einrichtung zur optischen erfassung von klopferscheinungen während der verbrennung bei brennkraftmaschinen
AT2228U1 (de) 1997-07-09 1998-06-25 Avl List Gmbh Zündkerze für brennkraftmaschinen
DE19846356A1 (de) * 1998-10-08 2000-04-13 Bosch Gmbh Robert Vorrichtung zur Überwachung des Verbrennungsvorgangs in Verbrennungsmotoren
US6642718B2 (en) * 2001-09-26 2003-11-04 Siemens Westinghouse Power Corporation Ignition system monitoring assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0140753A1 *

Also Published As

Publication number Publication date
JP2003515736A (ja) 2003-05-07
US6882418B1 (en) 2005-04-19
WO2001040753A1 (fr) 2001-06-07

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