EP1004755A2 - Méthode de fabrication d'un induit guidé par poussoir, pour actionneur de soupape de moteur à combustion interne - Google Patents

Méthode de fabrication d'un induit guidé par poussoir, pour actionneur de soupape de moteur à combustion interne Download PDF

Info

Publication number: EP1004755A2
Authority: EP; European Patent Office
Prior art keywords: manufacturing process; armature; pieces; tappet; plunger
Prior art date: 1998-11-25
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

Application number

EP99121415A

Other languages

German (de)

English (en)

Other versions

EP1004755B1 (fr

EP1004755A3 (fr

Inventor

Clemens Luchner

Wolfgang Dr. Hundt

Torsten Rech

Albert Hörl-Liegl

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Bayerische Motoren Werke AG

Original Assignee

Bayerische Motoren Werke AG

Priority date (The priority date 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 date listed.)

1998-11-25

Filing date

1999-10-27

Publication date

2000-05-31

1999-10-27 Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG

2000-05-31 Publication of EP1004755A2 publication Critical patent/EP1004755A2/fr

2001-05-09 Publication of EP1004755A3 publication Critical patent/EP1004755A3/fr

2004-09-01 Application granted granted Critical

2004-09-01 Publication of EP1004755B1 publication Critical patent/EP1004755B1/fr

2019-10-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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

Definitions

the invention relates to Manufacturing process for a plunger-guided armature of an actuator for globe valves an internal combustion engine, in which a plunger with a specially designed Anchor made of a soft magnetic iron material is connected to the drive.
a known drive-resistant connection of the armature to the shaft is, for example achieved by soldering as this is the schematic representation of the drawing the patent application 197 55 271 can be found.
connection method is disadvantageously complex and requires for example, due to the compliance of the soldering gap, a complex holding device for positioning anchor and shaft in relation to each other. It continues relatively high soldering temperature to make it from a soft magnetic iron material designed anchor loses its magnetic properties, which in an elaborate Heat process are to be restored. Loses in this heat process the plunger made of an iron material is one in terms of wear resistance unfavorable structural transformation. Finally, due to the relative long heat exposure the disadvantage of warping both components Oblique or by bending the components, where appropriate, another Post-processing of the anchor may be necessary.
the plunger is made of an iron material, which disadvantageously results in a relatively high mass or a large mass inertia results and also the plunger made of an iron material magnetic Interference fields caused.
the invention has for its object a manufacturing method for a reduced mass Show plunger-anchor unit.
the plunger consisting of one Ceramic material is manufactured with at least one guide section and with a circumferential groove axially spaced from the guide section for positioning is formed longitudinally tapered pieces, being positioned on the tappet Cone pieces arranged a finished machined anchor with a press fit and additionally at least with the tapered sections of the cone pieces or cohesively connected by electron beam welding.
the basic idea of the invention is the anchor on the cone pieces located on the shaft so that it presses on the conical surfaces designed for self-locking radial clamping of the cone pieces on the ceramic shaft is achieved is, which is advantageously so high that the total of spring and magnetic forces resulting operating forces are transmitted non-positively, the Circumferential groove only serves to position the cone pieces.
the anchor with the cone pieces serves to loosen the anchor counteract by the acting alternating forces.
the invention is in a further advantageous manner a lower weight Tappet-armature unit or a lower moving mass achieved, so that the spring forces of the spring-mass system can be reduced and so can the Magnetic surface of each actuator, which advantageously reduces weight and installation space are. Furthermore, with the manufacturing method according to the invention, there is minimal skewing reached between armature and plunger, the magnetic properties of the anchor are fully preserved and by the plunger made of a ceramic material magnetic interference fields are eliminated. After all, it is a reliable process Connection achieved at low manufacturing costs, especially if in another Embodiment of the invention of the plunger made of silicon nitride ceramic and machined to finished size is fed to the manufacturing process.
the invention is based on a plunger-anchor unit shown in the drawing explained.
the tappet-anchor unit is made of a tappet made of a ceramic material 2, which has at least one guide section 3.
The will continue Tappet 2 with a circumferential groove axially spaced from the guide sections 3 4 designed for positioning longitudinally tapered pieces 5.
This on the pestle 2 positioned cone pieces 5 serve to finish the finished anchor 1 to be arranged with a press fit. So that the anchor 1 is arranged on the plunger 2 Cone pieces 5 pressed so that the designed for self-locking Tapered surfaces a radial clamping of the cone pieces on the ceramic tappet 2 is reached, which is so high that the resulting from spring and magnetic forces Operating forces are transmitted non-positively, the circumferential groove 4 only serves to position the cone pieces 5.
the anchor 1 at least with the tapered sections 6 of the cone pieces 5 additionally either positively or cohesively by electron beam welding connected.
the securing of the armature 1 on the cone pieces 5 can thereby further be increased that the conical pieces 5 at both ends with the anchor 1 material or positive get connected.
the plunger 2 Silicon nitride ceramic is manufactured with the advantage that this plunger 2 to the finished size finished can be fed to the manufacturing process.
the anchor 1 used in the manufacturing process according to the invention is either from pure iron or from a nickel-iron compound (NiFe) or from a silicon-iron compound (SiFe) or made of a cobalt-iron compound (CoFe), the anchor 1 further finished in its shape and in terms of optimal magnetic properties are heat-treated in the manufacturing process according to the invention is fed.
NiFe nickel-iron compound
SiFe silicon-iron compound
CoFe cobalt-iron compound
the two ceramic cones 2 used cone pieces 5 as Extruded parts made from a deformable by upsetting / stamping or for electron beam welding suitable low-alloy carbon steel with C ⁇ 0.4% are made.
the anchor 1 becomes a safe, lowest possible heat input welded to the cone pieces 5 by means of an electron beam.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Magnetically Actuated Valves (AREA)
Valve-Gear Or Valve Arrangements (AREA)
Valve Device For Special Equipments (AREA)
Electromagnets (AREA)

EP99121415A 1998-11-25 1999-10-27 Méthode de fabrication d'un induit guidé par poussoir, pour actionneur de soupape de moteur à combustion interne Expired - Lifetime EP1004755B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19854377		1998-11-25
DE19854377A DE19854377A1 (de)	1998-11-25	1998-11-25	Herstellverfahren für einen stößelgeführten Anker eines Aktuators für Hubventile einer Brennkraftmaschine

Publications (3)

Publication Number	Publication Date
EP1004755A2 true EP1004755A2 (fr)	2000-05-31
EP1004755A3 EP1004755A3 (fr)	2001-05-09
EP1004755B1 EP1004755B1 (fr)	2004-09-01

Family

ID=7888974

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99121415A Expired - Lifetime EP1004755B1 (fr)	1998-11-25	1999-10-27	Méthode de fabrication d'un induit guidé par poussoir, pour actionneur de soupape de moteur à combustion interne

Country Status (2)

Country	Link
EP (1)	EP1004755B1 (fr)
DE (2)	DE19854377A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000077350A1 (fr) *	1999-06-10	2000-12-21	Bayerische Motoren Werke Aktiengesellschaft	Actionneur electromagnetique servant a actionner une soupape d'un moteur a combustion interne
EP1134363A1 (fr) *	1999-12-09	2001-09-19	Sumitomo Electric Industries, Ltd.	Actionneur de soupape électromagnétique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0960512A (ja) *	1995-08-25	1997-03-04	Honda Motor Co Ltd	内燃機関の動弁装置
EP0922520A1 (fr) *	1997-12-09	1999-06-16	Siemens Automotive Corporation	Méthode de brasage d'un matériau magnétique doux avec un matériau durci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2526651B2 (ja) *	1988-12-22	1996-08-21	いすゞ自動車株式会社	内燃機関
JP2772534B2 (ja) *	1989-02-20	1998-07-02	株式会社いすゞセラミックス研究所	電磁力バルブ駆動装置

1998
- 1998-11-25 DE DE19854377A patent/DE19854377A1/de not_active Withdrawn
1999
- 1999-10-27 EP EP99121415A patent/EP1004755B1/fr not_active Expired - Lifetime
- 1999-10-27 DE DE59910388T patent/DE59910388D1/de not_active Expired - Fee Related

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0960512A (ja) *	1995-08-25	1997-03-04	Honda Motor Co Ltd	内燃機関の動弁装置
EP0922520A1 (fr) *	1997-12-09	1999-06-16	Siemens Automotive Corporation	Méthode de brasage d'un matériau magnétique doux avec un matériau durci

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07, 31. Juli 1997 (1997-07-31) & JP 09 060512 A (HONDA MOTOR CO LTD), 4. März 1997 (1997-03-04) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000077350A1 (fr) *	1999-06-10	2000-12-21	Bayerische Motoren Werke Aktiengesellschaft	Actionneur electromagnetique servant a actionner une soupape d'un moteur a combustion interne
US6477995B2 (en)	1999-06-10	2002-11-12	Siemens Aktiengesellschaft	Electromagnetic actuator for actuating a lifting valve of an internal combustion engine
EP1134363A1 (fr) *	1999-12-09	2001-09-19	Sumitomo Electric Industries, Ltd.	Actionneur de soupape électromagnétique
US6566990B2 (en)	1999-12-09	2003-05-20	Itami Works Of Sumitomo Electric Industries, Ltd.	Electromagnetic actuator and valve-open-close mechanism

Also Published As

Publication number	Publication date
EP1004755B1 (fr)	2004-09-01
DE59910388D1 (de)	2004-10-07
DE19854377A1 (de)	2000-05-31
EP1004755A3 (fr)	2001-05-09

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EP2191107B1 (fr)	2014-07-16	Dispositif de réglage électromagnétique
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EP2724354B1 (fr)	2014-09-24	Dispositif de positionnement électromagnétique et dispositif de réglage d'arbre à cames
EP2587495B1 (fr)	2014-12-10	Dispositif de réglage électromagnétique
DE202011001412U1 (de)	2012-04-17	Elektromagnetische Stellvorrichtung sowie Nockenwellenverstellvorrichtung
EP1264968B1 (fr)	2006-04-26	Appareil pour actionner une soupape à levé variable dans un moteur à combustion interne
EP1924795A1 (fr)	2008-05-28	Soupape de distribution hydraulique
EP1004755B1 (fr)	2004-09-01	Méthode de fabrication d'un induit guidé par poussoir, pour actionneur de soupape de moteur à combustion interne
DE102007022266A1 (de)	2008-11-20	Anordnung eines variablen Ventiltriebs
EP1030961A1 (fr)	2000-08-30	Dispositif pour actionner une soupape de changement des gaz au moyen d'un actionneur electromagnetique
DE102009060028A1 (de)	2011-06-22	Magnetventil
DE102007021855A1 (de)	2008-11-13	Kipphebel einer Brennkraftmaschine
DE19723782C2 (de)	2001-02-01	Elektromagnetischer Aktuator zur Betätigung eines Gaswechselventils
DE19723520A1 (de)	1998-12-10	Verfahren zum lagerichtigen Fixieren einer Ankerplatte einer elektromagnetischen Ventilsteuerung, sowie elektromagnetische Ventilsteuerung
WO2018184975A1 (fr)	2018-10-11	Dispositif de réglage électromagnétique, en particulier pour faire varier le calage d'arbres à cames d'un moteur à combustion interne
DE202013105776U1 (de)	2015-03-19	Elektromagnetventil sowie Elektromagnetventil-Sortiment
DE102004006335A1 (de)	2005-08-25	Verfahren zum Verbinden eines ersten Werkstücks mit einem zweiten Werkstück
WO2004005678A1 (fr)	2004-01-15	Electrovanne hydraulique, notamment vanne proportionnelle, servant a commander un dispositif de reglage d'angle de rotation d'un arbre a cames par rapport a un vilebrequin d'un moteur a combustion interne
EP2649281B1 (fr)	2015-05-06	Ensemble d'arbre a cames et son procede de fabrication
DE19814322A1 (de)	1999-10-07	Verfahren zum Justieren von Aktoren zur elektromagnetischen Ventilsteuerung
DE19854378A1 (de)	2000-05-31	Herstellverfahren für einen stößelgeführten Anker eines Hubventil-Aktuators einer Brennkraftmaschine
DE102008038290A1 (de)	2010-02-25	Verfahren, Vorrichtung und Setzvorrichtung zum maschinellen Einbringen von Ventilkeilen bei Ventilen, insbesondere von Verbrennungsmotoren
WO2005012773A1 (fr)	2005-02-10	Unite structurale pour un ensemble soupape de commande supplementaire d'un conduit d'admission d'un moteur a combustion interne a piston
EP1479880A2 (fr)	2004-11-24	Commande de soupapes avec électro-aimants et aimants permanents

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