EP2504555A1 - Ventilvorrichtung für eine verbrennungskraftmaschine - Google Patents
Ventilvorrichtung für eine verbrennungskraftmaschineInfo
- Publication number
- EP2504555A1 EP2504555A1 EP10779756A EP10779756A EP2504555A1 EP 2504555 A1 EP2504555 A1 EP 2504555A1 EP 10779756 A EP10779756 A EP 10779756A EP 10779756 A EP10779756 A EP 10779756A EP 2504555 A1 EP2504555 A1 EP 2504555A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve device
- combustion engine
- internal combustion
- coupling element
- sensor
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/48—EGR valve position sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/74—Protection from damage, e.g. shielding means
Definitions
- the invention relates to a ventilating device for an internal combustion engine with a housing, in which a drive unit which generates a torque, a gear unit, a coupling element and a translationally movable adjusting element, which is fixedly connected to the coupling element, are arranged.
- valve devices are used for example as exhaust gas recirculation valves
- sensor systems for bearing feedback are usually arranged in these applications in the range of the gear unit to avoid too high a thermal load of the magnet or the sensor, as this often leads to a demagnetization of permanent magnets, which in turn inaccuracies in the result of the warehouse confirmation
- EP 1 126 156 A2 discloses an exhaust gas recirculation valve in which the position feedback is effected via a potentiometer.
- moving sliding contacts are arranged on the valve rod with the valve rod.
- EP 1 091 112 B1 discloses an exhaust gas recirculation valve with a contact-free Hall sensor.
- the exact arrangement of the sensor and the magnet are not apparent from this document.
- an adjusting device with a transmission is known, in which a Hall sensor is integrated, which cooperates with a arranged on a Abreteswelie magnet.
- the member to be detected would not be detected, so that errors occur through play between the individual gear ratios.
- a support member is arranged, on which a magnet is fixed, which cooperates with a non-contact sensor, which is secured in the housing.
- the coupling element and the carrier element are moved transiatorisch in the same way with the Verstelleiement, so that the movement of the magnet corresponds to the movement of the adjusting element.
- a thermal decoupling of the magnet is given by the optionally thermally highly loaded Verstelleiement.
- the sensor is arranged parallel to the direction of movement of the carrier element.
- the senor is mounted on the ends of a stamped grid by welding, the opposite ends of the stamped grid serve as connection pins for a connector.
- the sensor without the use of other components, such as a circuit board, mounted in the housing and electrically contacted.
- the stamped grid are encapsulated with, so that a release of the electrical contact is prevented.
- Other connectors and the like are completely eliminated, which in turn ensures a reliable electrical connection over the entire life.
- the stamped grid can advantageously have contact elements for attachment of the drive unit, whose opposite ends serve as connection pins for the connector.
- the entire stamped grid can be produced in one process step and the encapsulation of its position in the housing can be ensured.
- the contact stiffeners for the electric motor are generated without further assembly.
- electronic components to improve the electromagnetic compatibility are attached to the stamped grid, which can also be encapsulated with. So can be dispensed with further manufacturing steps here, while a reliable attachment is ensured.
- a heat-insulating element is arranged between the magnet and the adjusting element.
- a thermal decoupling of the heat-loaded Versmaschinelements takes place from the magnet, which significantly increases the life of the magnet and the accuracy of the measurements.
- a ceramic element serves as groisoiierendes element.
- Such an element is easy to fasten on the adjusting element and the Koppiungselement or, as already mentioned, in one piece with these produce. It is subject to good thermal insulation low wear and is thermally highly resilient.
- the carrier element is formed integrally with the Koppiungselement and the heat-insulating element and the magnet are integrated in the coupling element.
- Such an embodiment is particularly cost feasible.
- Ventüvorrauma is dargesteift in the figures and will be described nachfoigend the example of an exhaust gas recirculation valve. 1 shows a detail of a side view of the Ventüvoroplasty invention in a sectional view
- FIG. 2 shows a perspective view of a stamped grid with a sensor of the venting device from FIG. 1.
- the Ventüvortechnisch shown in Figure 1 shows a section of an exhaust gas recirculation valve.
- This has a drive unit 2 in the form of an electric motor and a transmission unit 4, which is driven via the drive unit 2 and whose movement is transmitted via a coupling element 6 to an adjustment element 8, which is the valve stem of the exhaust gas recirculation valve in the presentskysbeispiei.
- the drive unit 2, the gear unit 4 and the coupling element 6 and the adjusting element 8 are arranged in a common multi-part housing 10, which consists of a cup-shaped housing part 12 surrounding the drive unit 2, a housing part 14 accommodating the gear unit 4 and a cover part closing the housing part 14 16 exists.
- a first gear 20 of the gear unit 4 is arranged rotatably, by means of which the following gears are driven so that a desired reduction is achieved.
- a in the power flow of the gear unit 4 last gear 22 is designed as a gear segment, the axis of rotation 24 is fixed in the housing part 14.
- an axis 26 is additionally attached, concentrically around the axis of rotation 24 on a circular path at Actuation of the drive unit 2 is moved.
- a roller 28 is fixed, which runs in a slot 30 of the coupling element 6.
- the coupling element 6 is fixedly connected to the Versteiliement 8, which in turn is supported and guided in the housing 10 such that it can only perform a translational lifting movement. Accordingly, the circular movement of the roller 28 is converted by the coupling element 6 in a transiatorische movement of the adjustment element 8.
- a helical spring 32 is arranged around a side facing away from the adjustment 8 side of the gear 22, which serves as a return torsion spring and in case of failure of the drive unit 2 moves the valve in its closed position.
- a leg 34 of the spring 32 is secured to the gear 22 and a arranged at the other end of the spring 32, not visible in the figure leg attached to the housing part 14.
- a support member 36 is attached to the coupling element 6, which carries out the lifting movement of the adjusting element 8 with the coupling element 6.
- the support member 36 has a receptacle 38, in soft a permanent magnet 40 is arranged.
- the permanent magnet 40 communicates with a non-contact sensor 42, which is surrounded by the plastic of the housing part 14 and is arranged parallel to the axis of movement of the carrier element 36 next to it.
- the magnet 40 may be axially magnetized, for example, so that the sensor 42 detects the angle of movement of the magnetic field acting on it, which is a measure of the position of the adjusting element 8.
- a heat-insulating element 44 in the form of a ceramic element is arranged between the magnet 40 and the coupling element 6.
- This ceramic element 44 could also be arranged between the Koppiungseiement 6 and the support member 36, It is essential that the heat of the exhaust gas, which acts on the adjusting element 8, is shielded by the heat insulating member 44 relative to the magnet 40 so that this one significantly reduced is exposed to thermal stress.
- connection of the sensor 42 in the housing is clear.
- the sensor 42 is welded with its contact elements 46 directly to a stamped grid 48, which additionally has contact elements 50 for contacting the electric motor 2.
- the respective opposite ends of the stamped grid 48 which can also be seen in FIG. 1, serve as connection pins 52 for a connection plug for controlling the drive unit 2.
- This valve device is characterized by a high accuracy in the bearing feedback by exact non-changing positioning of the sensor to the magnet, by arranging the magnet on the element to be detected itself and by a thermal discharge of the magnet. This ensures correct position detection over a long service life.
- the structure is simple and the production or assembly has very few possible sources of error.
- the coupling element and the carrier element can also be produced in one piece, or the carrier element can receive the magnet as a ceramic insulating part.
- the insulating part could be arranged as a separate part between the coupling element and the carrier element.
- the shape of the gear or of the elements by which the rotational movement is converted into a translatory motion is not limitative of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009054311.2A DE102009054311B4 (de) | 2009-11-24 | 2009-11-24 | Ventilvorrichtung für eine Verbrennungskraftmaschine |
| PCT/EP2010/067201 WO2011064096A1 (de) | 2009-11-24 | 2010-11-10 | Ventilvorrichtung für eine verbrennungskraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2504555A1 true EP2504555A1 (de) | 2012-10-03 |
| EP2504555B1 EP2504555B1 (de) | 2015-01-07 |
Family
ID=43533372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10779756.5A Active EP2504555B1 (de) | 2009-11-24 | 2010-11-10 | Ventilvorrichtung für eine verbrennungskraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2504555B1 (de) |
| DE (1) | DE102009054311B4 (de) |
| WO (1) | WO2011064096A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011054082B3 (de) * | 2011-09-30 | 2012-12-13 | Pierburg Gmbh | Stellvorrichtung |
| WO2017029126A1 (de) * | 2015-08-18 | 2017-02-23 | Mahle International Gmbh | Ventiltrieb einer abgasführenden einrichtung |
| DE102016116981A1 (de) | 2016-09-09 | 2018-03-15 | Kendrion (Villingen) Gmbh | Elektromagnetische Verstellvorrichtung, insbesondere zur Nockenwellenverstellung |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2768258B2 (ja) * | 1994-01-31 | 1998-06-25 | 株式会社カワデン | 電動バルブ |
| DE19831140B4 (de) * | 1998-07-11 | 2009-08-20 | Pierburg Gmbh | Abgasrückführventil |
| DE19848081A1 (de) * | 1998-09-01 | 2000-03-02 | Mannesmann Vdo Ag | Antriebseinrichtung mit einem Stellantrieb |
| DE20002719U1 (de) * | 2000-02-15 | 2000-05-04 | Ab Elektronik Gmbh, 59368 Werne | Drehwinkelsensor |
| DE29916221U1 (de) * | 1999-09-15 | 1999-12-30 | Ab Elektronik Gmbh, 59368 Werne | Kurbelwellengeber |
| ES2214998T3 (es) * | 1999-10-05 | 2004-10-01 | Pierburg Gmbh | Unidad de valvula, tramo de canal de aspiracion de aire de combustion, asi como unidad de reciclaje de gases de escape para motores de combustion interna. |
| US6382195B1 (en) * | 2000-02-18 | 2002-05-07 | Borgwarner Inc. | Exhaust gas recirculation system for an internal combustion engine having an integrated valve position sensor |
| US6435169B1 (en) | 2000-03-17 | 2002-08-20 | Borgwarner Inc. | Integrated motor and controller for turbochargers, EGR valves and the like |
| DE10065144B4 (de) * | 2000-12-23 | 2004-11-25 | Conti Temic Microelectronic Gmbh | Aktor mit einem ein Stellglied drehenden elektromagnetischen Antrieb |
| DE10201141B4 (de) * | 2002-01-15 | 2009-10-15 | Pierburg Gmbh | Stellgetriebe mit Einrichtungen zur Feststellung der Abweichung von einer vorgegebenen Ausgangsstellung |
| DE10228689B4 (de) * | 2002-06-27 | 2016-03-17 | Conti Temic Microelectronic Gmbh | Verfahren zur Herstellung einer Baugruppe |
| GB0320335D0 (en) | 2003-08-29 | 2003-10-01 | Cooper Standard Automotive Uk | Valve |
| DE10344218B4 (de) * | 2003-09-22 | 2014-10-23 | Mahle Filtersysteme Gmbh | Abgasrückführungsventil |
| EP1862769A3 (de) * | 2006-06-01 | 2008-07-23 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Sensormodul und Verfahren zu dessen Herstellung |
| DE102006041562B4 (de) * | 2006-09-05 | 2025-08-21 | Pierburg Gmbh | Stellvorrichtung für eine Verbrennungskraftmaschine |
| DE102008049251B4 (de) * | 2008-09-26 | 2021-01-21 | Pierburg Gmbh | Stellvorrichtung zur Umwandlung einer rotatorischen Bewegung in eine lineare Bewegung |
-
2009
- 2009-11-24 DE DE102009054311.2A patent/DE102009054311B4/de not_active Withdrawn - After Issue
-
2010
- 2010-11-10 WO PCT/EP2010/067201 patent/WO2011064096A1/de not_active Ceased
- 2010-11-10 EP EP10779756.5A patent/EP2504555B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011064096A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2504555B1 (de) | 2015-01-07 |
| WO2011064096A1 (de) | 2011-06-03 |
| DE102009054311A1 (de) | 2011-06-09 |
| DE102009054311B4 (de) | 2015-03-26 |
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