DE102009027853A1 - Rotation-speed sensor for use in exhaust-gas turbocharger to detect speed in high temperature region, has component adjacent to magnetic field sensitive elements to protect elements from heating effect - Google Patents
Rotation-speed sensor for use in exhaust-gas turbocharger to detect speed in high temperature region, has component adjacent to magnetic field sensitive elements to protect elements from heating effect Download PDFInfo
- Publication number
- DE102009027853A1 DE102009027853A1 DE200910027853 DE102009027853A DE102009027853A1 DE 102009027853 A1 DE102009027853 A1 DE 102009027853A1 DE 200910027853 DE200910027853 DE 200910027853 DE 102009027853 A DE102009027853 A DE 102009027853A DE 102009027853 A1 DE102009027853 A1 DE 102009027853A1
- Authority
- DE
- Germany
- Prior art keywords
- speed sensor
- sleeve
- component
- sensor according
- magnetic field
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/02—Arrangement of sensing elements
- F01D17/06—Arrangement of sensing elements responsive to speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/02—Housings
- G01P1/026—Housings for speed measuring devices, e.g. pulse generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/502—Thermal properties
- F05D2300/5024—Heat conductivity
Abstract
Description
Die Erfindung betrifft einen Drehzahlsensor nach der im Oberbegriff von Anspruch 1 näher definierten Art.The The invention relates to a speed sensor according to the preamble Of claim 1 further defined type.
Gattungsgemäße Drehzahlsensoren werden zur Erfassung der Drehzahl im Bereich hoher Temperaturen verwendet.generic Speed sensors are used to detect the speed in the range high Temperatures used.
Insbesondere bei Abgasturboladern ist es notwendig, die exakte Drehzahl des Abgasturboladers zu kennen, um beispielsweise die Drehzahlbegrenzung zu aktivieren.Especially In exhaust gas turbochargers, it is necessary to know the exact speed of the exhaust gas turbocharger to know, for example, to activate the speed limit.
Die
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde einen Drehzahlsensor zu schaffen, welcher bei hohen Temperaturen einsetzbar ist. Insbesondere zur Verwendung in einem Abgasturbolader, um die Drehzahl direkt an der Schaufel zu detektieren.Of the The present invention is based on the object of a speed sensor to create which can be used at high temperatures. Especially for use in an exhaust gas turbocharger, to speed directly to detect the blade.
Die Aufgabe wird mit einem auch die kennzeichnenden Merkmale des Hauptanspruchs aufweisenden gattungsgemäßen Drehzahlsensor gelöst.The Task is with a also the characterizing features of the main claim having solved generic speed sensor.
Erfindungsgemäß weist der Drehzahlsensor ein raumfestes magnetfeldempfindliches Element auf, welches beispielsweise nach dem Wirbelstromprinzip ausgeführt sein kann und welches innerhalb einer Hülse angeordnet ist, wobei das magnetfeldempfindliche Element durch ein Bauteil aus hitzebeständigem gering wärmeleitfähigen Werkstoff vor der Wärmeeinwirkung geschützt wird.According to the invention the speed sensor has a space-fixed magnetic field-sensitive element, which, for example, carried out according to the eddy current principle may be and which is arranged within a sleeve is, wherein the magnetic field sensitive element by a component made of heat-resistant low thermal conductivity Material is protected from the action of heat.
Dabei kann das hitzebeständige wärmeleitfähige Bauteil aus einem Keramikwerkstoff oder einem hochtemperaturfesten Kunststoff bestehen.there Can be the heat-resistant thermally conductive Component of a ceramic material or a high temperature resistant Plastic exist.
Es besteht die Möglichkeit die Hülse topfförmig, somit mit Seitenwand und Boden auszuführen, wobei die gesamte Hülse aus dem hitzebeständigen gering wärmeleitfähigen Werkstoff besteht und das magnetfeldempfindliche Element innerhalb der Hülse benachbart zum Boden angeordnet ist.It there is the possibility of the sleeve cup-shaped, Thus to carry out with side wall and floor, whereby the entire Sleeve made of heat-resistant low thermal conductivity Material consists and the magnetic field sensitive element within the sleeve is disposed adjacent to the floor.
In einer weiteren Ausführungsform der Erfindung besteht die Möglichkeit die Hülse aus einem anderen Material, beispielsweise aus Aluminium, herzustellen und an einem Ende der Hülse ein hitzebeständiges gering wärmeleitfähiges Bauteil so mit der Hülse zu verbinden, dass die Hülse mit diesem Bauteil ein topfförmiges Element bildet, in welchem das magnetfeldempfindliche Element angeordnet ist. Das hitzebeständige gering wärmeleitfähige Bauteil kann in die Hülse eingepresst, eingeklebt oder in dieser formschlüssig gehalten sein.In a further embodiment of the invention is the Possibility of the sleeve of a different material, For example, made of aluminum, and at one end of the Sleeve a heat resistant low thermal conductivity Component so to connect with the sleeve that the sleeve forms a pot-shaped element with this component, in which the magnetic field sensitive element is arranged. The heat resistant low thermal conductivity component can in the sleeve Pressed, glued or held in this form-fitting be.
Der Sensor kann an seinem einen Ende flanschartig ausgeführt sein, um ihn beispielsweise im Turbolader befestigen zu können. Vorzugsweise wird der Sensor im Turbolader mit dem hitzebeständigen gering wärmeleitfähigen Bauteil unmittelbar benachbart zu den Leitschaufeln des Verdichterrades des Turboladers angeordnet, wobei unmittelbar benachbart zum hitzebeständigen gering wärmeleitfähigen Bauteil das magnetfeldempfindliche Element, beispielsweise der Ferrittkörper mit seinem Spulenkörper angeordnet ist.Of the Sensor can be made flanged at one end be able to attach it, for example, in the turbocharger. Preferably, the sensor in the turbocharger with the heat resistant becomes low thermally conductive component immediately adjacent arranged to the vanes of the compressor wheel of the turbocharger, being immediately adjacent to the heat resistant low thermally conductive component of the magnetic field sensitive Element, for example, the ferrite body with its bobbin is arranged.
In einer weiteren Ausgestaltungsform der Erfindung kann zur Drehrichtungserkennung und Signalplausibilisierung der Sensor mehrere Spulen auf einem zylindrischen oder auf einem geteilten Spulenkörper aufweisen.In Another embodiment of the invention can be used to detect the direction of rotation and signal plausibility of the sensor several coils on one cylindrical or on a split bobbin.
Der Sensor kann eine Auswerteelektronik aufweisen, deren Bauelemente beispielsweise auf einer Leiterplatte angebracht sein können, wobei die Auswerteelektronik etwas entfernt von dem magnetfeldempfindlichen Element angeordnet ist, um diese noch weiter vor der Wärmeeinwirkung zu schützen.Of the Sensor may have an evaluation, their components for example, can be mounted on a circuit board, the transmitter is a bit removed from the magnetic field sensitive Element is arranged to make this even further before the heat to protect.
In einer weiteren Ausgestaltungsform der Erfindung kann der gesamte Sensor mit einer Vergussmasse vergossen sein, welche den Sensor vor Umgebungseinflüssen schützt. Bei Verwendung einer weichen Vergussmasse werden die Bauteile zusätzlich vor Erschütterungen geschützt.In In another embodiment of the invention, the entire Sensor be potted with a potting compound, which is the sensor protects against environmental influences. Using a soft potting compound, the components in addition protected from shocks.
Durch den erfindungsgemäßen Sensor kann die Sensorspule sehr nahe am zu detektierenden Objekt angeordnet sein, wobei bei Verwendung eines Eisenkerns die Feldlinien der Sensorspule gezielt auf das zu detektierende Objekt ausgerichtet sind. Zusätzlich zum Schutz vor Wärme weist die Verwendung eines keramischen Werkstoffes oder hochtemperaturfesten Kunststoffs als Abdichtung die geringe Bedämpfung der Sensorspule auf.By the sensor according to the invention, the sensor coil be arranged very close to the object to be detected, wherein at Using an iron core, the field lines of the sensor coil targeted are aligned with the object to be detected. additionally To protect against heat, the use of a ceramic Material or high temperature resistant plastic as a seal the low damping of the sensor coil.
Weitere Merkmale sind der Figurenbeschreibung zu entnehmen.Further Features are shown in the description of the figures.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Sensorsensor
- 22
- Abgasturboladerturbocharger
- 33
- Schaufelshovel
- 44
- Auswerteelektronikevaluation
- 55
- hitzebeständiges Bauteilheat-resistant component
- 66
- Ferritkernferrite
- 77
- SpuleKitchen sink
- 88th
- Hülseshell
- 99
- flanschartiges Bauteilflange-like component
- 1010
- Bodenground
- 1111
- Flanschflange
- 1212
- Flanschflange
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - WO 2008/025754 A1 [0004] - WO 2008/025754 A1 [0004]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910027853 DE102009027853A1 (en) | 2009-07-21 | 2009-07-21 | Rotation-speed sensor for use in exhaust-gas turbocharger to detect speed in high temperature region, has component adjacent to magnetic field sensitive elements to protect elements from heating effect |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910027853 DE102009027853A1 (en) | 2009-07-21 | 2009-07-21 | Rotation-speed sensor for use in exhaust-gas turbocharger to detect speed in high temperature region, has component adjacent to magnetic field sensitive elements to protect elements from heating effect |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009027853A1 true DE102009027853A1 (en) | 2011-01-27 |
Family
ID=43383737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910027853 Withdrawn DE102009027853A1 (en) | 2009-07-21 | 2009-07-21 | Rotation-speed sensor for use in exhaust-gas turbocharger to detect speed in high temperature region, has component adjacent to magnetic field sensitive elements to protect elements from heating effect |
Country Status (1)
Country | Link |
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DE (1) | DE102009027853A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013102510A1 (en) * | 2012-01-04 | 2013-07-11 | Robert Bosch Gmbh | Sensor device for the contactless detection of a rotation property of a rotatable object |
WO2014082776A1 (en) * | 2012-11-29 | 2014-06-05 | Robert Bosch Gmbh | Electric contact arrangement for contacting a coil |
WO2014095107A1 (en) * | 2012-12-18 | 2014-06-26 | Robert Bosch Gmbh | Sensor device for detecting at least one rotational property of a rotating element |
WO2015027348A1 (en) | 2013-08-29 | 2015-03-05 | Jaquet Technology Group Ag | Sensor device for determining rotational speed of a rotatable object and turbocharger with such a sensor device |
EP2648001A4 (en) * | 2012-01-31 | 2015-07-29 | Applied Electronics Corp | Eddy current sensor and turbo charger rotation detecting device using same |
EP2881746A4 (en) * | 2012-08-02 | 2016-06-22 | Yanmar Co Ltd | Rotation speed detection device |
EP2500580A3 (en) * | 2011-03-18 | 2017-05-03 | Robert Bosch GmbH | Compressor wheel, device for detecting speed, production method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7316487U (en) * | 1973-10-18 | Euchner & Co | Touchless switch | |
US5021736A (en) * | 1989-09-19 | 1991-06-04 | Texas Instruments Incorporated | Speed/position sensor calibration method with angular adjustment of a magnetoresistive element |
US5486758A (en) * | 1993-10-06 | 1996-01-23 | Kelsey-Hayes Company | Integral variable reluctance speed sensor |
DE19623236A1 (en) * | 1996-06-11 | 1997-12-18 | Horn E Dr Gmbh | Angular speed measurement method for turbocharger |
DE19646056A1 (en) * | 1996-11-07 | 1998-05-14 | Vogt Electronic Ag | Robust, high temp. tachometer sensor giving strong signal at low speed |
DE10345049B3 (en) * | 2003-09-26 | 2005-02-03 | Siemens Ag | Magnetic field sensor for measuring the revolutions of a rotating gearing arrangement comprises a housing and housing body formed as injection molded parts with a permanent magnet injected into the housing |
WO2008025754A1 (en) | 2006-08-30 | 2008-03-06 | Continental Automotive Gmbh | Waste gate actuator for an exhaust gas turbocharger |
-
2009
- 2009-07-21 DE DE200910027853 patent/DE102009027853A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7316487U (en) * | 1973-10-18 | Euchner & Co | Touchless switch | |
US5021736A (en) * | 1989-09-19 | 1991-06-04 | Texas Instruments Incorporated | Speed/position sensor calibration method with angular adjustment of a magnetoresistive element |
US5486758A (en) * | 1993-10-06 | 1996-01-23 | Kelsey-Hayes Company | Integral variable reluctance speed sensor |
DE19623236A1 (en) * | 1996-06-11 | 1997-12-18 | Horn E Dr Gmbh | Angular speed measurement method for turbocharger |
DE19646056A1 (en) * | 1996-11-07 | 1998-05-14 | Vogt Electronic Ag | Robust, high temp. tachometer sensor giving strong signal at low speed |
DE10345049B3 (en) * | 2003-09-26 | 2005-02-03 | Siemens Ag | Magnetic field sensor for measuring the revolutions of a rotating gearing arrangement comprises a housing and housing body formed as injection molded parts with a permanent magnet injected into the housing |
WO2008025754A1 (en) | 2006-08-30 | 2008-03-06 | Continental Automotive Gmbh | Waste gate actuator for an exhaust gas turbocharger |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2500580A3 (en) * | 2011-03-18 | 2017-05-03 | Robert Bosch GmbH | Compressor wheel, device for detecting speed, production method |
US9618529B2 (en) | 2012-01-04 | 2017-04-11 | Robert Bosch Gmbh | Sensor device for the contactless acquisition of a rotation characteristic of a rotatable object |
CN104126055A (en) * | 2012-01-04 | 2014-10-29 | 罗伯特·博世有限公司 | Sensor device for contactless detection of rotation property of rotatable object |
WO2013102510A1 (en) * | 2012-01-04 | 2013-07-11 | Robert Bosch Gmbh | Sensor device for the contactless detection of a rotation property of a rotatable object |
CN104126055B (en) * | 2012-01-04 | 2016-08-24 | 罗伯特·博世有限公司 | For contactlessly detecting the sensor device of the revolving property of rotatable object |
EP2648001A4 (en) * | 2012-01-31 | 2015-07-29 | Applied Electronics Corp | Eddy current sensor and turbo charger rotation detecting device using same |
EP2881746A4 (en) * | 2012-08-02 | 2016-06-22 | Yanmar Co Ltd | Rotation speed detection device |
US9431722B2 (en) | 2012-11-29 | 2016-08-30 | Robert Bosch Gmbh | Electrical contact system for contacting a coil |
WO2014082776A1 (en) * | 2012-11-29 | 2014-06-05 | Robert Bosch Gmbh | Electric contact arrangement for contacting a coil |
WO2014095107A1 (en) * | 2012-12-18 | 2014-06-26 | Robert Bosch Gmbh | Sensor device for detecting at least one rotational property of a rotating element |
CN105518467A (en) * | 2013-08-29 | 2016-04-20 | 杰凯特技术集团股份公司 | Sensor device for determining rotational speed of a rotatable object and turbocharger with such a sensor device |
WO2015027348A1 (en) | 2013-08-29 | 2015-03-05 | Jaquet Technology Group Ag | Sensor device for determining rotational speed of a rotatable object and turbocharger with such a sensor device |
US10379134B2 (en) | 2013-08-29 | 2019-08-13 | Jaquet Technology Group Ag | Sensor device for determining rotational speed of a rotatable object and turbocharger with such a sensor device |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |