DE102005025115A1 - Integrated combustion chamber pressure sensor - Google Patents
Integrated combustion chamber pressure sensor Download PDFInfo
- Publication number
- DE102005025115A1 DE102005025115A1 DE200510025115 DE102005025115A DE102005025115A1 DE 102005025115 A1 DE102005025115 A1 DE 102005025115A1 DE 200510025115 DE200510025115 DE 200510025115 DE 102005025115 A DE102005025115 A DE 102005025115A DE 102005025115 A1 DE102005025115 A1 DE 102005025115A1
- Authority
- DE
- Germany
- Prior art keywords
- combustion chamber
- sealing element
- pressure
- cavity
- engine
- 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.)
- Ceased
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 79
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 description 11
- 230000036316 preload Effects 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/222—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
- G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Die Erfindung bezieht sich auf eine Vorrichtung zur Erfassung des Druckes im Brennraum (60) einer Verbrennungskraftmaschine, in deren Zylinderkopf (10) mindestens ein Motoranbauteil (20) aufgenommen ist. Dieses ist mit einer Vorspannkraft (52) gegen ein in axiale Richtung verformbares Dichtelement (30) angestellt. Das Dichtelement (30) dichtet das in einer Bohrung (12, 14) aufgenommene Motoranbauteil (20) gegen die Brennraumgase ab. Mindestens ein Kraftsensor (34) ist in einen Hohlraum (46) des Dichtelements (30) integriert.The invention relates to a device for detecting the pressure in the combustion chamber (60) of an internal combustion engine, in whose cylinder head (10) at least one engine attachment (20) is received. This is employed with a biasing force (52) against a deformable in the axial direction sealing element (30). The sealing element (30) seals the engine attachment (20) received in a bore (12, 14) against the combustion chamber gases. At least one force sensor (34) is integrated in a cavity (46) of the sealing element (30).
Description
Die Erfindung bezieht sich auf einen integrierten Brennraumdrucksensor, welcher in eine Motoranbaukomponente einer Verbrennungskraftmaschine, wie z.B. in einen Injektor, eine Glühkerze oder eine Zündkerze integriert ist, gemäß des Oberbegriffes des Patentanspruches 1.The This invention relates to an integrated combustion chamber pressure sensor, which in an engine attachment component of an internal combustion engine, such as. in an injector, a glow plug or a spark plug is integrated, according to the preamble of claim 1.
Aus
Gemäß der Lösung aus
Gemäß
Vorteile der ErfindungAdvantages of invention
Aufgabe der vorliegenden Erfindung ist es, eine Messung des in einem Brennraum einer Verbrennungskraftmaschine herrschenden Druckes mit einem einfachen Sensor zu ermöglichen, der in bereits vorhandenes Bauteil integriert ist.task It is the object of the present invention to provide a measurement of in a combustion chamber an internal combustion engine prevailing pressure with a simple To enable sensor which is integrated in already existing component.
Erfindungsgemäß wird vorgeschlagen, einen Kraftsensor in ein Dichtelement eines Motoranbauteils, wie z.B. einer Zündkerze, einer Glühkerze oder eines Kraftstoffinjektors, zu integrieren, welches im eingebauten Zustand des Motoranbauteils durch dieses mit einer Vorspannkraft beaufschlagt ist. Vorteilhafterweise kann dieses Dichtelement elastisch ausgebildet werden und umschließt z.B. einen auf Piezo-Basis arbeitenden Drucksensor. Dadurch ist dieser von den im Brennraum einer Verbrennungskraftmaschine herrschenden Temperaturen abgeschirmt und misst die Kraftentlastung des durch die Brennraumdruckgase beaufschlagten Motoranbauteiles, wie z.B. einer Glühkerze oder eines Kraftstoffinjektors. Das Dichtelement ist zur Abdichtung eines Kraftstoffinjektors vorhanden und wird in vorteilhafter Weise zur Aufnahme des den Brennraumdruck erfassenden Kraftsensors ausgestaltet, so dass kein zusätzliches Bauteil erforderlich ist. Der vom z.B. ringförmig ausgebildeten Dichtelement im Wesentlichen umschlossene Kraftsensor kann durch einen Kabelkanal, der im Zylinderkopf ausgebildet werden kann oder über Leiterbahnen am Zylinderkopf oder aber über direkt am Dichtelement vorgesehene Signalleitungen kontaktiert werden und auf diese Weise mit einem Motorsteuergerät der Verbrennungskraftmaschine zur Übertragung des Brennraumdrucksignales an dieses verbunden werden.According to the invention, it is proposed a force sensor in a sealing element of a motor attachment, such as e.g. a spark plug, a glow plug or a fuel injector, which is built-in Condition of the engine attachment by this with a biasing force is charged. Advantageously, this sealing element elastic be formed and encloses e.g. a piezo-based pressure sensor. This is this of the ruling in the combustion chamber of an internal combustion engine Shielded temperatures and measures the power drain of the the combustion chamber pressure gases act on engine attachment, such as e.g. a glow plug or a fuel injector. The sealing element is for sealing a fuel injector is present and is advantageously configured for receiving the combustion chamber pressure sensing force sensor, so no extra Component is required. Der of e.g. ring-shaped sealing element essentially enclosed force sensor can be connected by a cable channel, which can be formed in the cylinder head or via conductor tracks on the cylinder head or over directly provided on the sealing element signal lines are contacted and in this way with an engine control unit of the internal combustion engine for transmission the combustion chamber pressure signal are connected to this.
Aufgrund der Vorspannkraft, mit dem das Motoranbauteil im montierten Zustand beaufschlagt ist, wirkt die Mantelfläche eines z.B. thorusförmig ausgebildeten Dichtelements sowohl in Bezug auf den Zylinderkopf als auch auf eine durch die Brennraumdruckgase beaufschlagte Stirnfläche des Motoranbauteils als Dichtfläche. Aufgrund der elastischen Ausgestaltung des Dichtelements sind je nach Einsatzzweck unterschiedliche Vorspannkräfte einstellbar. So sind z.B. aufgrund der höheren Verdichtung an selbstzündenden Verbrennungskraftmaschinen höhere Vorspannkräfte an Kraftstoffinjektoren bzw. Glühstiftkerzen erforderlich im Vergleich zu Vorspannkräften, die auf Zündkerzen an fremd gezündeten Verbrennungskraftmaschinen aufgebracht werden. Der in das Dichtelement für das Motoranbauteil integrierte Kraftsensor misst die Kraftentlastung, die auf das durch den Brennraumdruck beaufschlagte Motoranbauteil wirkt. Aus diesem Kraftsignal wird mit Hilfe der bekannten Fläche des brennraumdruckbeaufschlagten Motoranbauteils der Brennraumdruck im Motorsteuergerät berechnet.Due to the biasing force with which the engine attachment is acted upon in the mounted state, the lateral surface of a thorax-shaped sealing element acts both as a sealing surface with respect to the cylinder head and to an end face of the engine attachment acted upon by the combustion chamber pressure gases. Due to the elastic configuration of the sealing element are depending on Purpose different preload forces adjustable. For example, due to the higher compression of self-igniting internal combustion engines, higher preload forces on fuel injectors or glow plugs are required in comparison to preload forces that are applied to spark plugs on externally ignited internal combustion engines. The force sensor integrated into the sealing element for the engine attachment measures the force relief which acts on the engine attachment acted upon by the combustion chamber pressure. From this force signal, the combustion chamber pressure in the engine control unit is calculated with the aid of the known area of the engine compartment driven by the combustion chamber.
Zeichnungdrawing
Anhand der Zeichnung wird die Erfindung nachstehend eingehender beschrieben.Based In the drawings, the invention will be described below in more detail.
Es zeigt:It shows:
Wie
aus der Darstellung gemäß
Der
Darstellung gemäß
Die
Bohrung im Zylinderkopf
Das
Dichtelement
Im
montierten Zustand des Motoranbauteils
Der
Vollständigkeit
halber sei erwähnt,
dass das in
Der
Darstellung gemäß
Das
Dichtelement
Aufgrund
der thorusförmigen
Ausgestaltung des Dichtelements
- 1010
- Zylinderkopfcylinder head
- 1212
- erster Bohrungsabschnittfirst bore section
- 1414
- zweiter Bohrungsabschnittsecond bore section
- 1515
- Rundmutterround nut
- 1616
- Ringflächering surface
- 1717
- Dichtringseal
- 1818
- Hohlraumcavity
- 18.118.1
- äußerer Hohlraumouter cavity
- 18.218.2
- innerer Hohlrauminternal cavity
- 1919
- Spaltgap
- 2020
- Motoranbauteil (Zündkerze,Motor attachment (Spark plug,
- Kraftstoffinjektor, Glühstiftfuel injector, Glow plug
- kerze)candle)
- 2222
- Gehäusecasing
- 2323
- Außengewindeexternal thread
- 2424
- erste Dichtflächefirst sealing surface
- 2626
- zweite Dichtflächesecond sealing surface
- 2828
- Spaltgap
- 3030
- Dichtelementsealing element
- 30.130.1
- 1. Kontaktfläche1. contact area
- 30.230.2
- 2. KontaktflächeSecond contact area
- 3232
- Mantelfläche DichtelementLateral surface sealing element
- 3434
- Kraftsensorforce sensor
- 3636
- Strömungsrichtung Brennflow direction burning
- raumgasespace gases
- 3838
- Glühwendelfilament
- 3939
- Füllpulverfilling powder
- 4040
- Anschlussbolzenconnecting bolt
- 4242
- Symmetrieachseaxis of symmetry
- 4444
- Wanddickewall thickness
- 4646
- Ring-HohlraumRing cavity
- 4848
- HorizontalschlitzungHorizontalschlitzung
- 5050
- Signalleitungsignal line
- 5252
- Vorspannkraftpreload force
- 5454
- Entlastungskraft durch Brennrelief force by burning
- raumgasespace gases
- 5656
- Glührohrglow tube
- 5858
- Heizkörper bei GlühstiftkerzeRadiator at glow plug
- 6060
- Brennraumcombustion chamber
- 6262
- Stirnfläche HeizkörperFace radiator
- 6464
- Ringflächering surface
- 6666
- VitonringVitonring
- 6868
- brennraumdruckbeaufschlagterbrennraumdruckbeaufschlagter
-
Teil
der Ringfläche
64 Part of the ring surface64
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510025115 DE102005025115A1 (en) | 2005-06-01 | 2005-06-01 | Integrated combustion chamber pressure sensor |
PCT/EP2006/061387 WO2006128755A1 (en) | 2005-06-01 | 2006-04-06 | Integrated combustion chamber sensor |
EP06725609A EP1891412A1 (en) | 2005-06-01 | 2006-04-06 | Integrated combustion chamber sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510025115 DE102005025115A1 (en) | 2005-06-01 | 2005-06-01 | Integrated combustion chamber pressure sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005025115A1 true DE102005025115A1 (en) | 2006-12-07 |
Family
ID=36579548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510025115 Ceased DE102005025115A1 (en) | 2005-06-01 | 2005-06-01 | Integrated combustion chamber pressure sensor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1891412A1 (en) |
DE (1) | DE102005025115A1 (en) |
WO (1) | WO2006128755A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010070400A1 (en) * | 2008-12-15 | 2010-06-24 | Federal-Mogul Italy Srl | Glow plug with pressure sensing canister |
AT510718B1 (en) * | 2011-03-18 | 2012-06-15 | Piezocryst Advanced Sensorics | ISOLATOR FOR A SPARK PLUG WITH SENSOR FUNCTION, AND SPARK PLUG WITH SENSOR FUNCTION |
DE102014216583A1 (en) | 2014-08-21 | 2016-02-25 | Robert Bosch Gmbh | Method for controlling an internal combustion engine and sensor for measuring a combustion chamber pressure |
BE1022261B1 (en) * | 2013-08-12 | 2016-03-07 | Kempchen Dichtungstechnik Gmbh | DICHTUNGSRING, DICHTUNGSANORDNUNG SOWIE VERFAHREN ZUR MOUNTING EINES DICHTUNGSRINGS |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5965181B2 (en) * | 2012-03-29 | 2016-08-03 | 日本特殊陶業株式会社 | Glow plug and manufacturing method thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4169388A (en) * | 1978-12-13 | 1979-10-02 | The Bendix Corporation | Integrated spark plug-combustion pressure sensor |
DE2917406A1 (en) * | 1979-04-28 | 1980-11-06 | Bosch Gmbh Robert | Carbon powder IC engine knock detector - has resistive path in head gasket, bolt and washer, or electrode mounted on head, with insulator |
JPS6454685A (en) * | 1987-08-25 | 1989-03-02 | Ngk Spark Plug Co | Spark plug with pressure sensor |
DE4207495A1 (en) * | 1992-03-10 | 1993-09-16 | Fev Motorentech Gmbh & Co Kg | Arrangement for detecting abnormal combustion knocking or misfiring in IC engines - contains expansion measurement element mounted on seal flange between cylinder head and block |
AT402116B (en) * | 1994-12-19 | 1997-02-25 | Avl Verbrennungskraft Messtech | SPARK PLUG WITH A FORCE MEASUREMENT ELEMENT FOR MEASURING THE PRESSURE AT THE SPARK PLUG |
JP4300663B2 (en) * | 1999-12-24 | 2009-07-22 | 株式会社デンソー | Combustion pressure sensor structure |
-
2005
- 2005-06-01 DE DE200510025115 patent/DE102005025115A1/en not_active Ceased
-
2006
- 2006-04-06 WO PCT/EP2006/061387 patent/WO2006128755A1/en active Application Filing
- 2006-04-06 EP EP06725609A patent/EP1891412A1/en not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010070400A1 (en) * | 2008-12-15 | 2010-06-24 | Federal-Mogul Italy Srl | Glow plug with pressure sensing canister |
CN102282422A (en) * | 2008-12-15 | 2011-12-14 | 费德罗-莫格尔意大利科学研究院 | Glow plug with pressure sensing canister |
US8217309B2 (en) | 2008-12-15 | 2012-07-10 | Federal-Mogul Italy Srl. | Glow plug with pressure sensing canister |
AT510718B1 (en) * | 2011-03-18 | 2012-06-15 | Piezocryst Advanced Sensorics | ISOLATOR FOR A SPARK PLUG WITH SENSOR FUNCTION, AND SPARK PLUG WITH SENSOR FUNCTION |
AT510718A4 (en) * | 2011-03-18 | 2012-06-15 | Piezocryst Advanced Sensorics | ISOLATOR FOR A SPARK PLUG WITH SENSOR FUNCTION, AND SPARK PLUG WITH SENSOR FUNCTION |
BE1022261B1 (en) * | 2013-08-12 | 2016-03-07 | Kempchen Dichtungstechnik Gmbh | DICHTUNGSRING, DICHTUNGSANORDNUNG SOWIE VERFAHREN ZUR MOUNTING EINES DICHTUNGSRINGS |
DE102014216583A1 (en) | 2014-08-21 | 2016-02-25 | Robert Bosch Gmbh | Method for controlling an internal combustion engine and sensor for measuring a combustion chamber pressure |
Also Published As
Publication number | Publication date |
---|---|
WO2006128755A1 (en) | 2006-12-07 |
EP1891412A1 (en) | 2008-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20120224 |
|
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |