DE102007003562A1 - Cylinder pressure measuring device for e.g. diesel engine, has carrying sleeve attached to strain gauges, where elongation of sleeve and elongation of gauges produces elongation of tie rod, which is produced by cylinder pressure - Google Patents
Cylinder pressure measuring device for e.g. diesel engine, has carrying sleeve attached to strain gauges, where elongation of sleeve and elongation of gauges produces elongation of tie rod, which is produced by cylinder pressure Download PDFInfo
- Publication number
- DE102007003562A1 DE102007003562A1 DE102007003562A DE102007003562A DE102007003562A1 DE 102007003562 A1 DE102007003562 A1 DE 102007003562A1 DE 102007003562 A DE102007003562 A DE 102007003562A DE 102007003562 A DE102007003562 A DE 102007003562A DE 102007003562 A1 DE102007003562 A1 DE 102007003562A1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder pressure
- tie rod
- support sleeve
- measuring device
- elongation
- 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
Links
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
- G01L23/08—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
- G01L23/18—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 resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- 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
- G01M15/08—Testing internal-combustion engines by monitoring pressure in cylinders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Measuring Fluid Pressure (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Zylinderdruckmesseinrichtung für eine Brennkraftmaschine.The The invention relates to a cylinder pressure measuring device for an internal combustion engine.
Zur Gewährleistung eines optimalen Betriebs einer Brennkraftmaschine, wie z. B. eines Großdieselmotors oder auch Gasmotors, ist es erforderlich, den in Zylindern der Brennkraftmaschine herrschenden Zylinderdruck messtechnisch zu erfassen und z. B. zur Regelung des Zündverhaltens der Brennkraftmaschine zu verwenden. Hierzu ist es notwendig, den in den Zylindern einer Brennkraftmaschine herrschenden Zylinderdruck permanent zu erfassen.to warranty optimal operation of an internal combustion engine, such. B. a large diesel engine or gas engine, it is necessary to prevail in cylinders of the internal combustion engine To detect cylinder pressure metrologically and z. B. for the regulation of ignition behavior to use the internal combustion engine. For this it is necessary, the in the cylinders of an internal combustion engine prevailing cylinder pressure permanently detect.
Aus der Praxis bekannte Zylinderdruckmesseinrichtungen erfassen den Zylinderdruck von Zylindern einer Brennkraftmaschine direkt bzw. innerhalb eines Brennraums der Zylinder. Derartige brennraumbündige Zylinderdruckmesseinrichtungen unterliegen einer hohen thermischen und mechanischen Belastung. Weiterhin sind dieselben Schädigungseinflüssen durch Ablagerungen von Verbrennungsrückständen ausgesetzt. Dies führt dazu, dass die aus der Praxis bekannten, brennraumbündigen Zylinderdruckmesseinrichtungen lediglich eine geringe Standzeit aufweisen und daher nicht geeignet sind, permanent über eine relativ lange Betriebsdauer zuverlässig den Zylinderdruck zu erfassen. Es besteht daher Bedarf an einer Zylinderdruckmesseinrichtung, mit Hilfe derer permanent der in Zylindern einer Brennkraftmaschine herrschende Zylinderdruck gemessen werden kann, die jedoch mit relativ geringen Kosten realisiert werden kann, ohne dass konstruktive Veränderungen an der Brennkraftmaschine als solche erforderlich sind.Out practice known cylinder pressure measuring detect the Cylinder pressure of cylinders of an internal combustion engine directly or inside a combustion chamber of the cylinders. Such combustion chamber flush cylinder pressure measuring devices are subject to high thermal and mechanical stress. Furthermore, the same damage influences by Deposits of combustion residues exposed. this leads to to that known from practice, the combustion chamber flush cylinder pressure measuring devices have only a short service life and are therefore not suitable, permanently over Relatively long operating time to reliably detect the cylinder pressure. There is therefore a need for a cylinder pressure measuring device, with Help those permanently in the cylinders of an internal combustion engine prevailing cylinder pressure can be measured, however, with relatively low Cost can be realized without making any constructive changes are required as such at the internal combustion engine.
Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, eine neuartige Zylinderdruckmesseinrichtung zu schaffen.Of these, Based on the present invention, the problem is based to create a novel cylinder pressure measuring device.
Dieses Problem wird durch eine Zylinderdruckmesseinrichtung nach Anspruch 1 gelöst. Die erfindungsgemäße Zylinderdruckmesseinrichtung weist eine in axialer Richtung geteilte Traghülse auf, die über mindestens eine Befestigungseinrichtung an einem Zuganker des Zylinders derart befestigbar ist, dass die Traghülse den Zuganker teilweise umschließt, wobei der Traghülse mindestens ein Dehnungsmessstreifen zugeordnet ist, und wobei eine durch den zu messenden Zylinderdruck bewirkte Längenänderung des Zugankers eine Längenänderung der in axialer Richtung getrennten Traghülse und damit eine Längenänderung des oder jedes Dehnungsmessstreifens bewirkt.This Problem is solved by a cylinder pressure measuring device according to claim 1 solved. The cylinder pressure measuring device according to the invention has a split in the axial direction supporting sleeve, which over at least a fastening device on a tie rod of the cylinder such fastened is that the carrying sleeve partially enclosing the tie rod, the support sleeve at least one strain gauge is assigned, and wherein a through the cylinder pressure to be measured caused change in length of the tie rod a change in length the separate in the axial direction support sleeve and thus a change in length of the or each strain gauge causes.
Mit Hilfe der erfindungsgemäßen Zylinderdruckmesseinrichtung wird der in Zylindern einer Brennkraftmaschine herrschende Zylinderdruck indirekt bzw. außerhalb des Brennraums der Zylinder erfasst. Hierzu wird eine dem Zylinderdruck proportionale Dehnung eines Zugankers des hinsichtlich seines Zylinderdrucks zu überwachenden Zylinders herangezogen. Da die erfindungsgemäße Zylinderdruckmesseinrichtung keine direkte Verbindung zum Brennraum des zu überwachenden Zylinders aufweist, unterliegt dieselbe auch keinen hohen thermischen und mechanischen Belastungen. Des Weiteren ist die Funktion der erfindungsgemäßen Zylinderdruckmesseinrichtung nicht durch Ablagerungen von Verbrennungsrückständen beeinträchtigt. Darüber hinaus sind an der Brennkraftmaschine keine konstruktiven Veränderungen erforderlich. Die erfindungsgemäße Zylinderdruckmesseinrichtung kann an einer Brennkraftmaschine einfach montiert und demontiert werden. Die erfindungsgemäße Zylinderdruckmesseinrichtung zeichnet sich durch relativ geringe Kosten sowie hohe Standzeiten aus.With Help of the cylinder pressure measuring device according to the invention is the pressure prevailing in cylinders of an internal combustion engine cylinder pressure indirectly or outside the combustion chamber of the cylinder detected. For this purpose, a cylinder pressure proportional elongation of a tie rod of the in terms of its cylinder pressure to be monitored Cylinders pulled. As the cylinder pressure measuring device according to the invention has no direct connection to the combustion chamber of the cylinder to be monitored, The same is not subject to high thermal and mechanical Charges. Furthermore, the function of the cylinder pressure measuring device according to the invention not affected by deposits of combustion residues. Furthermore are on the engine no structural changes required. The cylinder pressure measuring device according to the invention can be easily mounted on an internal combustion engine and dismantled become. The cylinder pressure measuring device according to the invention is characterized by relatively low costs and long service life out.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:preferred Further developments of the invention will become apparent from the dependent claims and the following description. Embodiments of the invention without being limited to this to be closer to the drawing explained. Showing:
Die
erfindungsgemäße Zylinderdruckmesseinrichtung
verfügt über eine
Traghülse
Die
erfindungsgemäße Zylinderdruckmesseinrichtung
verfügt über zwei
Befestigungseinrichtungen, um die erfindungsgemäße Zylinderdruckmesseinrichtung
an einem Zuganker des Zylinders zu befestigen, und zwar derart,
dass die Traghülse
Jede
der Befestigungseinrichtungen umfasst einen U-förmigen Spannring
Durch
die Verwendung der Spannringe
Jeder
der Abschnitte
Der
Traghülse
Durch
Wahl eines geeigneten Werkstoffs für die Traghülse kann einer Reibkorrosionsgefahr
zwischen Traghülse
und Zuganker entgegengewirkt werden. Vorzugsweise ist die Traghülse
Vorzugsweise
umfasst die Zylinderdruckmesseinrichtung zwei Dehnungsmessstreifen,
die an sich diametral gegenüberliegenden
Positionen der Traghülse
angeordnet sind. Vorzugsweise ist jedem der beiden Abschnitte
Es ist möglich, bestehende Brennkraftmaschinen mit der erfindungsgemäßen Zylinderdruckmesseinrichtung nachzurüsten. Die Montage sowie Demontage der erfindungsgemäßen Zylinderdruckmesseinrichtung erfolgt am montierten Zuganker. Es sind keinerlei konstruktive Änderungen am Zuganker bzw. an der Brennkraftmaschine erforderlich.It is possible, existing internal combustion engine with the cylinder pressure measuring device according to the invention retrofit. The assembly and disassembly of the cylinder pressure measuring device according to the invention takes place on the installed tie rod. There are no constructive changes on the tie rod or on the internal combustion engine required.
- 1010
- Traghülsecarrying sleeve
- 1111
- Axialrichtungaxially
- 1212
- Abschnittsection
- 1313
- Abschnittsection
- 1414
- EndeThe End
- 1515
- EndeThe End
- 1616
- Spannringclamping ring
- 1717
- Nutensteinsliding block
- 1818
- Klemmstückclamp
- 1919
- Spannplattechipboard
- 2020
- Vorsprunghead Start
Claims (5)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007003562A DE102007003562B4 (en) | 2007-01-24 | 2007-01-24 | Cylinder pressure measuring device |
FI20085035A FI121096B (en) | 2007-01-24 | 2008-01-16 | Cylinder pressure measuring device |
JP2008010911A JP2008180715A (en) | 2007-01-24 | 2008-01-21 | Cylinder pressure measuring device |
KR1020080006654A KR20080069911A (en) | 2007-01-24 | 2008-01-22 | Cylinder pressure measuring device |
CN2008100038376A CN101231205B (en) | 2007-01-24 | 2008-01-24 | Cylinder pressure measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007003562A DE102007003562B4 (en) | 2007-01-24 | 2007-01-24 | Cylinder pressure measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007003562A1 true DE102007003562A1 (en) | 2008-08-07 |
DE102007003562B4 DE102007003562B4 (en) | 2010-12-16 |
Family
ID=39004335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007003562A Expired - Fee Related DE102007003562B4 (en) | 2007-01-24 | 2007-01-24 | Cylinder pressure measuring device |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2008180715A (en) |
KR (1) | KR20080069911A (en) |
CN (1) | CN101231205B (en) |
DE (1) | DE102007003562B4 (en) |
FI (1) | FI121096B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200264057A1 (en) * | 2019-02-15 | 2020-08-20 | Ronald C. Clarke | External Tie-Rod Load Indicator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7500176B2 (en) * | 2019-10-16 | 2024-06-17 | ミネベアミツミ株式会社 | Strain sensor and strain measurement method |
CN111103143B (en) * | 2019-12-18 | 2021-11-02 | 西安航天动力研究所 | Thermal protection mounting structure of pressure measuring sensor in narrow space |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4206592A1 (en) * | 1992-03-03 | 1993-09-09 | Nowak Klaus | METHOD AND DEVICE FOR MEASURING THE POWER OF ENGINES |
DE19726830A1 (en) * | 1996-06-24 | 1998-04-16 | Cummins Engine Co Inc | Device and method for controlling and monitoring an internal combustion engine by detecting the cylinder head screw load |
DE10018265A1 (en) * | 2000-04-13 | 2001-11-08 | Ift Ingenieurgesellschaft Fuer | Measurement arrangement for internal combustion engine has gauges that convert cylinder pressure limited deformations of motor components to cylinder pressure proportional signals available for motor control |
DE19803470B4 (en) * | 1998-01-29 | 2004-07-15 | Siemens Ag | Method and device for determining the gas forces in the combustion chamber of an internal combustion engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4683757A (en) * | 1986-03-24 | 1987-08-04 | Motorola, Inc. | Axial pressure sensor |
JP2578963Y2 (en) * | 1993-04-23 | 1998-08-20 | 三菱重工業株式会社 | In-cylinder pressure measurement device for diesel engines |
JPH0882565A (en) * | 1994-09-13 | 1996-03-26 | Mitsubishi Heavy Ind Ltd | Measuring device for pressure within cylinder |
-
2007
- 2007-01-24 DE DE102007003562A patent/DE102007003562B4/en not_active Expired - Fee Related
-
2008
- 2008-01-16 FI FI20085035A patent/FI121096B/en not_active IP Right Cessation
- 2008-01-21 JP JP2008010911A patent/JP2008180715A/en active Pending
- 2008-01-22 KR KR1020080006654A patent/KR20080069911A/en not_active Application Discontinuation
- 2008-01-24 CN CN2008100038376A patent/CN101231205B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4206592A1 (en) * | 1992-03-03 | 1993-09-09 | Nowak Klaus | METHOD AND DEVICE FOR MEASURING THE POWER OF ENGINES |
DE19726830A1 (en) * | 1996-06-24 | 1998-04-16 | Cummins Engine Co Inc | Device and method for controlling and monitoring an internal combustion engine by detecting the cylinder head screw load |
DE19803470B4 (en) * | 1998-01-29 | 2004-07-15 | Siemens Ag | Method and device for determining the gas forces in the combustion chamber of an internal combustion engine |
DE10018265A1 (en) * | 2000-04-13 | 2001-11-08 | Ift Ingenieurgesellschaft Fuer | Measurement arrangement for internal combustion engine has gauges that convert cylinder pressure limited deformations of motor components to cylinder pressure proportional signals available for motor control |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200264057A1 (en) * | 2019-02-15 | 2020-08-20 | Ronald C. Clarke | External Tie-Rod Load Indicator |
US11536618B2 (en) * | 2019-02-15 | 2022-12-27 | Valley Forge & Bolt Mfg. Co. | External tie-rod load indicator |
Also Published As
Publication number | Publication date |
---|---|
JP2008180715A (en) | 2008-08-07 |
KR20080069911A (en) | 2008-07-29 |
FI20085035A0 (en) | 2008-01-16 |
FI20085035A (en) | 2008-07-25 |
CN101231205A (en) | 2008-07-30 |
CN101231205B (en) | 2011-01-26 |
DE102007003562B4 (en) | 2010-12-16 |
FI121096B (en) | 2010-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006027710B4 (en) | Method and device for the indirect measurement of engine cylinder pressure | |
EP0504676B1 (en) | Sensor for strain measurement | |
DE2658481A1 (en) | PIPE FLANGE CONNECTION | |
DE102007003562B4 (en) | Cylinder pressure measuring device | |
DE102018111435A1 (en) | Reciprocating engine with variable compression ratio | |
DE3640511C2 (en) | ||
DE112018006299T5 (en) | NUT LOCKING DEVICE AND A COMBINED ROLLER | |
EP1882170A1 (en) | Pencil type glow plug with combustion chamber pressure sensor | |
DE2544506A1 (en) | MEMBRANE ARRANGEMENT FOR PRESSURE TRANSDUCER | |
EP1860415A2 (en) | Bending ring force transducer | |
DE102008040386A1 (en) | Spark plug for position-oriented installation | |
DE102007003377B4 (en) | Cylinder pressure measuring device | |
DE102010039266A1 (en) | Arrangement for fastening of secondary element e.g. lid, at primary element i.e. housing, of gear box of motor car, has attachment screw running through receiving part, where outer contour of attachment screw is adapted to diameter of hole | |
EP1076174A2 (en) | Single cylinder high pressure pump | |
DE3419633C2 (en) | Tension and shear-proof screw socket connection for pipes | |
DE1124729B (en) | Device for measuring the forces between components | |
AT505049B1 (en) | INTERNAL COMBUSTION ENGINE WITH A CYLINDER HEAD | |
DE102011086005A1 (en) | Fuel injector, method for mounting a fuel injector and clamping device for mounting a fuel injector | |
DE102009025486B4 (en) | Pressure sensor, use of the pressure sensor and manufacturing method for the pressure sensor | |
DE102016208168A1 (en) | Injector for metering a fluid | |
DE9113098U1 (en) | Tensile force measuring device | |
DE102019204823A1 (en) | Method for diagnosing exhaust gas sensors | |
EP0715159A2 (en) | Pressure sensor for liquid or gas medium | |
DE2654787C3 (en) | Device for pretensioning the bolts of large internal combustion engines | |
WO2024056432A1 (en) | Screw, screw connection, and vehicle coupling comprising such a screw connection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8181 | Inventor (new situation) |
Inventor name: HAENSSLER, SEBASTIAN, 68239 MANNHEIM, DE Inventor name: SCHOLZ, SIEGFRIED, 86399 BOBINGEN, DE |
|
8127 | New person/name/address of the applicant |
Owner name: MAN DIESEL & TURBO SE, 86153 AUGSBURG, DE |
|
8364 | No opposition during term of opposition | ||
R020 | Patent grant now final |
Effective date: 20110316 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110802 |