EP1179119B1 - Elektromechanischer stellantrieb - Google Patents
Elektromechanischer stellantrieb Download PDFInfo
- Publication number
- EP1179119B1 EP1179119B1 EP00934868A EP00934868A EP1179119B1 EP 1179119 B1 EP1179119 B1 EP 1179119B1 EP 00934868 A EP00934868 A EP 00934868A EP 00934868 A EP00934868 A EP 00934868A EP 1179119 B1 EP1179119 B1 EP 1179119B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- contact
- contact element
- plug connector
- electromagnet
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 9
- 239000002826 coolant Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
Definitions
- the invention relates to an electromechanical actuator, in particular for a gas exchange valve of an internal combustion engine, according to the preamble of claim 1.
- a well-known electromechanical actuator (DE 196 47 305 C1) has two electromagnets, each one Have coil, and an anchor that has a shaft and which is mechanically coupled with a spring.
- the anchor is between a first contact surface on the first electromagnet and a further contact surface on the second electromagnet movable.
- the actuator is in a cylinder head arranged an internal combustion engine.
- the shaft of the anchor is in the de-energized state of the coils of the electromagnets non-positive with a stem of a gas exchange valve coupled.
- the shaft of the gas exchange valve is one second spring coupled in opposite directions to the first spring acts, whereby the frictional connection between the shaft of the gas exchange valve and the shaft of the anchor is manufactured.
- Such electromechanical actuators are also from the US 4,777,915 and EP 0 796 981 A1 are known, these then additionally each have a connector with at least a contact element that is electrically conductive with the Coil of the electromagnet is connected.
- the actuator When installing the actuator in the cylinder head, the The shaft of the anchor plate is exactly aligned with the shaft of the Gas exchange valve are positioned. Furthermore, the first and the second spring is compressed during assembly, to bring the actuator into the mounting position. If the necessary force is not applied exactly, subject to bolts that are usually used for fixation of the actuator are used in the cylinder head, and an associated thread high tension and can thereby being damaged.
- the object of the invention is the known actuator to develop so that it is easy and reliable on one Carrier is mountable.
- Another object of the invention is specify a process that is reliable and simple Assembly of the actuator on the carrier guaranteed.
- An internal combustion engine (FIG. 1) comprises an actuator 1, which acts on a gas exchange valve 2 and which is arranged in a cylinder head 31 of the internal combustion engine.
- the gas exchange valve 2 is designed either as an outlet valve or as an inlet valve.
- the gas exchange valve 2 has a valve stem 21 and a plate 22.
- the actuator 1 has a housing 11 in which a first and a second electromagnet are arranged.
- the first electromagnet has a first core 12 which is provided with a first coil 13.
- the second electromagnet has a second core 14 which is provided with a second coil 15.
- An armature is provided, the armature plate in the housing 11 being movably arranged between a first contact surface 15a of the first electromagnet and a second contact surface 15b of the second electromagnet.
- the anchor plate 16 is thus movable between a closed position s maxS and an open position s maxO .
- the armature further comprises a shaft 17 which is guided through recesses in the first and second core 12, 14 and which can be mechanically coupled to the valve shaft 21 of the gas exchange valve 2.
- a first return means 18 a and a second return means 18 b which are preferably designed as springs, bias the anchor plate 16 into the predetermined rest position s 0 .
- the resetting means 18a, 18b are arranged on one side on the housing 11 of the actuator toward the gas exchange valve 2 in a recess in the cylinder head 31.
- the restoring means 18a, 18b are referred to below as springs.
- the first spring 18a is supported on the one hand on a spring plate, which in turn rests on the housing 11, and on the other hand on a further spring plate, which is positively connected to the armature shaft 17.
- the second spring 18b is supported on the one hand on a spring plate, which is supported on the cylinder head 31, and on the other hand on a further spring plate, which is positively connected to the valve stem 21 of the gas exchange valve.
- the armature shaft 17 and the valve shaft 21 are aligned, that is to say positioned coaxially to one another.
- the springs are preferably designed such that the second spring 18b is almost relaxed when the anchor plate 16 is in contact with the first contact surface 15a, and the first spring 18a is largely relaxed when the anchor plate is in contact with the second contact surface 15b.
- the distance between the first and second contact surfaces, that is to say between the closed position s maxS and the open position s maxO is, for example, eight millimeters.
- the actuator is also assigned a connector 51 in which Contact elements 53 are arranged, which are electrically conductive are connected to the coils 13, 15. Furthermore is on the cylinder head 31 a connector receptacle 52 is arranged. The plug 51 and the connector receptacle 52 will be discussed further below described with reference to Figures 2 and 3.
- the actuator 1 is with the cylinder head 31 of the internal combustion engine rigidly connected He is preferably by means of Bolt fixed in a thread of the cylinder head.
- On Intake channel 32 and a cylinder 33 with a piston 34 are provided in the internal combustion engine.
- the piston 34 is over a connecting rod is coupled to a crankshaft 36.
- a control device 4 is provided, which the signals from Detects sensors that are designed, for example, as one Position sensor 19 and / or a speed sensor 37 and / or a load detection sensor.
- the control device 4 controls depending from the signal from the sensors the first and second coils 13, 15 of the actuator.
- the plug 51 points towards the cylinder head 31 Opening in which the connector receptacle 52 is received is.
- the contact elements 53 are either a contact pin or also designed as a leadframe.
- the coolant is preferably designed as an engine oil.
- the connector 51 and the connector receptacle 52 are therefore designed that when inserted into the connector 51 connector receptacle 52 the area in which the contact elements 53 the resilient trained contact elements 55 contact sealing against the coolant are completed. This may include corresponding seals on the connector 51 or the connector receptacle 52 is provided. This ensures that there are no short circuits between the contact elements can come with adjacent contact elements.
- a recess 57 is provided in the plug 51, through a part of the Contact element 53 is passed.
- the recess 57 and the service contacts 58 are designed so that at least during the assembly of the actuator on the cylinder head 31 the service contact 58 by means of an assembly contact element 59 is electrically contactable.
- the actuator 1 is from above (see Figure 1) on the cylinder head 31st assembled.
- the service contact 58 is therefore arranged in such a way that he from the side of the plug 51 facing away from the cylinder head is accessible.
- the mounting contact element 59 With the contact element 53 contacted.
- the mounting contact element 59 is connected to an external one Power supply connected. After contacting the first coil 13 is then energized.
- Around the circuit To close the coil is preferably a second contact element connected with a service contact and will also contacted with a mounting contact element if the actuator not already connected to a ground connection on site is.
- the current through the first coil is specified that the magnetic force generated in the first electromagnet sufficient to place the anchor plate in contact with the first contact surface to bring and hold there.
- the actuator in the cylinder head is like this positioned that the stem 17 and the valve stem 21 align and fixed by bolts that are in one in the cylinder head 31 trained threads are screwed in.
- the contacting element 59 remains in constant contact with the Service contact so that the anchor plate 16 by the force generated by the first electromagnet is held with the first contact surface 15a.
- Service contact 58 is preferably oil-tight through the recess 57 of the plug 51 led. This ensures that it is prevented that oil during operation of the internal combustion engine Recess can pass through, which may lead to short circuits could lead between adjacent contact elements.
- the actuator is characterized by the fact that it is simple and can be mounted precisely in the cylinder head 31.
- the anyway existing electromagnet in the actuator used to apply the necessary force to the anchor plate to bring into contact with the first contact surface 15a and thus the free end of the shaft 17 on the side where the Spring 18a is arranged to retract so far that the actuator brought into its mounting position on the cylinder head 31 can be without the need to spring 18b compress.
- the springs 18a, 18b are preferably conical. They preferably taper towards the spring plates 18c, 18d, which each form-fit with the anchor shaft 17 or are connected to the shaft 21 of the gas exchange valve.
- the Conical design of the springs 18a, 18b has the advantage that compared to cylindrical springs, i.e. with even Winding diameter, have a lower mass. Furthermore, by using the conical springs Spring plates 18c, 18d can be made smaller. Through this Measures reduce the moving masses of the Actuator, so that the actuator with a higher efficiency can be operated.
- the conical formation of the Spring provides regardless of the presence of the mounting contact element is an independent invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
- Figur 1
- eine Anordnung des erfindungsgemäßen Stellantriebs in einer Brennkraftmaschine,
- Figur 2
- einen vergrößerten Ausschnitt des Stellantriebs gemäß Figur 2,
- Figur 3
- einen weiteren vergrößerten Ausschnitt des Stellantriebs gemäß Figur 1.
Claims (4)
- Elektromechanischer Stellantrieb mit mindestens einem Elektromagneten, der eine Spule (13) hat, und einem Anker (16), der einen Schaft (17), aufweist und der mit mindestens einem Rückstellmittel (18a,18b) mechanisch gekoppelt ist und der zwischen einer ersten Anlagefläche (15a) an dem Elektromagneten und einer weiteren Anlagefläche (15b) beweglich ist, und mit einem Stecker (51), der mindestens ein Kontaktelement (53) hat, das elektrisch leitend mit der Spule (13) des Elektromagneten verbunden ist, dadurch gekennzeichnet, dass das mindestens eine Kontaktelement des Steckers (51) so angeordnet ist, daß es zumindest während der Montage des Stellantriebs auf einen Träger mittels eines Montagekontaktierelements (59) an dem Stecker (51) elektrisch und mechanisch kontaktierbar ist, auch wenn der Stecker (51) in eine Steckeraufnahme (52) eingebracht ist.
- Stellantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das Kontaktelement (53) einen als Servicekontakt (55) ausgebildeten Bereich hat, der durch eine Ausnehmung (57) des Steckers (51) geführt ist und der zumindest während der Montage des Stellantriebs auf den Träger mittels eines Montagekontaktierelements (59) elektrisch kontaktierbar ist.
- Stellantrieb nach Anspruch 2, dadurch gekennzeichnet, daß der Servicekontakt (55) öldicht durch die Ausnehmung (57) des Gehäuses des Steckers (51) geführt ist.
- Verfahren zur Montage eines Stellantriebs nach einem der vorstehenden Ansprüche auf einem Träger, dadurch gekennzeichnet, daß in der angegebenen Reihenfolgedas Kontaktelement (53) mit dam Montagekontaktierelement (59) kontaktiert wird,die Spule (13) des Elektromagneten derart bestromt wird, daß die Ankerplatte (16) in Anlage mit der ersten Anlagefläche (15a) kommt,der Stellantrieb auf dem Träger fixiert wird, unddie Kontaktierung zwischen dem Kontaktelement (53) und dem Montagekontaktierelement (59) wieder aufgehoben wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19922425A DE19922425C1 (de) | 1999-05-14 | 1999-05-14 | Elektromechanischer Stellantrieb und seine Montage z.B. als Gaswechselventil in den Zylinderkopf einer Brennkraftmaschine |
| DE19922425 | 1999-05-14 | ||
| PCT/DE2000/001033 WO2000070194A1 (de) | 1999-05-14 | 2000-04-04 | Elektromechanischer stellantrieb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1179119A1 EP1179119A1 (de) | 2002-02-13 |
| EP1179119B1 true EP1179119B1 (de) | 2003-09-17 |
Family
ID=7908180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00934868A Expired - Lifetime EP1179119B1 (de) | 1999-05-14 | 2000-04-04 | Elektromechanischer stellantrieb |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6803686B2 (de) |
| EP (1) | EP1179119B1 (de) |
| JP (1) | JP2002544757A (de) |
| DE (2) | DE19922425C1 (de) |
| WO (1) | WO2000070194A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10063471A1 (de) | 2000-12-19 | 2002-06-20 | Claas Industrietechnik Gmbh | Kontaktierungsvorrichtung und eine Magnetspule |
| JP3780886B2 (ja) * | 2001-09-07 | 2006-05-31 | トヨタ自動車株式会社 | 内燃機関のバルブ駆動装置 |
| US7059879B2 (en) * | 2004-05-20 | 2006-06-13 | Hubbell Incorporated | Electrical connector having a piston-contact element |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777915A (en) * | 1986-12-22 | 1988-10-18 | General Motors Corporation | Variable lift electromagnetic valve actuator system |
| DE4225329A1 (de) * | 1992-07-31 | 1993-02-18 | Dreyer Dietmar | Ventilansteuerungseinrichtung fuer den einsatz in verbrennungsmotoren |
| EP0796981A1 (de) * | 1996-03-23 | 1997-09-24 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Elektromagnetische Betätigungsvorrichtung für Brennkraftmaschinen-Hubventile |
| EP0798459A2 (de) * | 1996-03-30 | 1997-10-01 | LUCAS INDUSTRIES public limited company | Einspritzdüse |
| EP0921280A1 (de) * | 1997-12-09 | 1999-06-09 | Siemens Automotive Corporation | Elektromagnetischer Betätiger mit Gehäuse aus gestanztem Stahl |
| EP0923090A1 (de) * | 1997-12-09 | 1999-06-16 | Siemens Automotive Corporation | Elektromagnetischer Betätiger mit lösbarem unterem Kragen zur Ausrichtung in der Zylinderbohrung |
| EP0924394A1 (de) * | 1997-12-17 | 1999-06-23 | TEMIC TELEFUNKEN microelectronic GmbH | Aktor zur elektromagnetischen Ventilsteuerung |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2481680A (en) * | 1946-06-07 | 1949-09-13 | Byron E Mills | Solenoid operated dice agitating game device |
| US3184622A (en) * | 1960-08-01 | 1965-05-18 | Edwards Company Inc | Bell striker assembly |
| US3130333A (en) * | 1961-05-17 | 1964-04-21 | Walbro Corp | Electric pump motor |
| US3670188A (en) * | 1971-07-16 | 1972-06-13 | Anton Voros Jr | Electromagnetic reciprocating motor |
| DE2400509A1 (de) * | 1974-01-07 | 1975-07-17 | Daut & Rietz Kg | Gabelfeder mit loetansatz |
| JPH0620009B2 (ja) | 1984-05-24 | 1994-03-16 | キヤノン株式会社 | コイルボビン |
| JPH04131734A (ja) * | 1990-09-25 | 1992-05-06 | Fuji Electric Co Ltd | 変圧器の自動試験接続装置 |
| DE19612397A1 (de) * | 1996-03-28 | 1997-10-02 | Bayerische Motoren Werke Ag | Stellvorrichtung zur relativen Winkelverstellung einer angetriebenen Welle, insbesondere Nockenwelle einer Brennkraftmaschine |
| DE19647305C1 (de) * | 1996-11-15 | 1998-02-05 | Daimler Benz Ag | Vorrichtung zur elektromagnetischen Betätigung eines Gaswechselventils |
| DE19756095C2 (de) * | 1997-12-17 | 2001-11-22 | Telefunken Microelectron | Vorrichtung zum Betrieb von Aktoren zur elektromagnetischen Ventilsteuerung bei Brennkraftmaschinen |
-
1999
- 1999-05-14 DE DE19922425A patent/DE19922425C1/de not_active Expired - Fee Related
-
2000
- 2000-04-04 DE DE50003733T patent/DE50003733D1/de not_active Expired - Fee Related
- 2000-04-04 JP JP2000618589A patent/JP2002544757A/ja not_active Withdrawn
- 2000-04-04 WO PCT/DE2000/001033 patent/WO2000070194A1/de not_active Ceased
- 2000-04-04 EP EP00934868A patent/EP1179119B1/de not_active Expired - Lifetime
-
2001
- 2001-11-14 US US09/992,996 patent/US6803686B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777915A (en) * | 1986-12-22 | 1988-10-18 | General Motors Corporation | Variable lift electromagnetic valve actuator system |
| DE4225329A1 (de) * | 1992-07-31 | 1993-02-18 | Dreyer Dietmar | Ventilansteuerungseinrichtung fuer den einsatz in verbrennungsmotoren |
| EP0796981A1 (de) * | 1996-03-23 | 1997-09-24 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Elektromagnetische Betätigungsvorrichtung für Brennkraftmaschinen-Hubventile |
| EP0798459A2 (de) * | 1996-03-30 | 1997-10-01 | LUCAS INDUSTRIES public limited company | Einspritzdüse |
| EP0921280A1 (de) * | 1997-12-09 | 1999-06-09 | Siemens Automotive Corporation | Elektromagnetischer Betätiger mit Gehäuse aus gestanztem Stahl |
| EP0923090A1 (de) * | 1997-12-09 | 1999-06-16 | Siemens Automotive Corporation | Elektromagnetischer Betätiger mit lösbarem unterem Kragen zur Ausrichtung in der Zylinderbohrung |
| EP0924394A1 (de) * | 1997-12-17 | 1999-06-23 | TEMIC TELEFUNKEN microelectronic GmbH | Aktor zur elektromagnetischen Ventilsteuerung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50003733D1 (de) | 2003-10-23 |
| US6803686B2 (en) | 2004-10-12 |
| DE19922425C1 (de) | 2000-10-19 |
| WO2000070194A1 (de) | 2000-11-23 |
| EP1179119A1 (de) | 2002-02-13 |
| US20020060503A1 (en) | 2002-05-23 |
| JP2002544757A (ja) | 2002-12-24 |
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