EP0244878A2 - Commande électromagnétique-hydraulique de soupapes des moteurs à combustion interne - Google Patents

Commande électromagnétique-hydraulique de soupapes des moteurs à combustion interne Download PDF

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Publication number
EP0244878A2
EP0244878A2 EP87107613A EP87107613A EP0244878A2 EP 0244878 A2 EP0244878 A2 EP 0244878A2 EP 87107613 A EP87107613 A EP 87107613A EP 87107613 A EP87107613 A EP 87107613A EP 0244878 A2 EP0244878 A2 EP 0244878A2
Authority
EP
European Patent Office
Prior art keywords
piston
electromagnet
valve
hydraulic cylinder
armature
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
Application number
EP87107613A
Other languages
German (de)
English (en)
Other versions
EP0244878A3 (en
EP0244878B1 (fr
Inventor
Gabriel Dipl.-Ing. Tittizer
Ewald Dipl.-Ing. Junghans
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.)
Interatom Internationale Atomreaktorbau GmbH
Original Assignee
Interatom Internationale Atomreaktorbau GmbH
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.)
Filing date
Publication date
Priority claimed from DE19853504639 external-priority patent/DE3504639A1/de
Application filed by Interatom Internationale Atomreaktorbau GmbH filed Critical Interatom Internationale Atomreaktorbau GmbH
Priority to AT87107613T priority Critical patent/ATE57989T1/de
Publication of EP0244878A2 publication Critical patent/EP0244878A2/fr
Publication of EP0244878A3 publication Critical patent/EP0244878A3/de
Application granted granted Critical
Publication of EP0244878B1 publication Critical patent/EP0244878B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/02—Systems with continuously-operating input and output apparatus
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • 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
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • the present application relates to a valve train for internal combustion engines, i. H. for four-stroke gasoline or diesel engines according to the preamble of claim 1.
  • Such machines have at least 2 valves per cylinder, which according to the currently preferred technique are pressed into their closed position by spring force and thereby brought into their open position in that a force which counteracts and exceeds the spring force is applied to the valve stem; this in such a way that cams are mounted on an auxiliary shaft driven by the crankshaft at half the speed, which apply the required force to the valve tappets via rocker arms.
  • Electromagnetic valve trains are already known from DE-A-33 11 250 and 30 24 109.
  • an attempt is made to close the valve, which is designed as an armature of an electromagnet, over the selected displacement path (which can be a few mm, for example, in a motor vehicle engine of 100 KW) by means of Excitement to move the former.
  • This requires relatively large electromagnets, which are not only expensive, but also often difficult to accommodate in the immediate vicinity of the engine block.
  • the object of the present invention is to enable a greater valve lift while basically adhering to the conventional design of the aforementioned motors and at the same time to eliminate parts which are susceptible to wear. This is intended to achieve a more favorable control behavior of the valves.
  • the hydraulic power transmission 1 can translate the movement of the first piston in that the second piston has a noticeably smaller cross section than the first piston.
  • the former then follows the movement imposed by the latter with a stroke that is enlarged in relation to the cross-sectional areas when the overall system is closed.
  • the movement of the pistons in their cylinders is largely wear-free due to the lack of transverse forces that stress the sliding surfaces.
  • the armature of the proposed first electromagnet only needs to be informed of a very small displacement path in the order of magnitude of 1 to 1.5 mm, for which relatively low electromagnetic forces are sufficient. This slight movement is then increased by the hydraulic ratio to the desired valve lift.
  • the return of the armature to its initial position when the electromagnet is de-energized can be effected in a conventional manner by the force of a return spring.
  • this return spring can be dispensed with in an embodiment of the invention according to claim 2, or its strength can be reduced to the extent which is sufficient to compensate for mechanical play if a special electromagnet is present for each movement device of the primary piston, which is mutually excited with the other.
  • the differential piston arrangement has the effect that a displacement of one piston, no matter in which direction, always results in a corresponding displacement of the other piston.
  • a pot magnet appears to be particularly suitable for use in the construction described, as proposed in claim 3.
  • the second piston and the valve stem with the molded valve plate can be made in one piece, which also further reduces the possibility of play in the transmission.
  • FIG. 1 An embodiment of the invention is shown in the drawing, namely in the longitudinal axial section.
  • the figure partially shows the combustion chamber 1 of a cylinder of an internal combustion engine, to which a fuel-air mixture is supplied via an intake duct 2; an outlet valve can be designed in basically the same way.
  • the intake duct 2 is closed off from the combustion chamber 1 by a valve disk 4, which forms a unit with a tappet 5.
  • the valve 4 is loaded in the direction of its closed position by a helical spring 6, which is supported on an abutment 7.
  • the first piston 12 is made in one piece with an armature 19.
  • the armature 19 is in contact with a first electromagnet 20 or a second electromagnet 21, depending on the alternating excitation to be carried out.
  • the air gap s to the electromagnet removed in each case is only about 1 to 1.5 mm in size, so that relatively weak and thus small electromagnets can be used. This is particularly the case when, as shown here, it is not necessary to work against a strong return spring, but rather a spring 6 which presses the valve plate 4 into its closed position only serves to compensate for play and can be dimensioned correspondingly weak.
  • the excitation of the electromagnets 20, 21 takes place alternately by a control unit 26, in which not only the respective, for. B. on a crankshaft 27 decreased speed of the machine, but also other operating values that are detected by sensors 28 not described here. In this way, the valve closing times that correspond most precisely to the respective operating state can be controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valve Device For Special Equipments (AREA)
EP87107613A 1985-02-11 1986-01-30 Commande électromagnétique-hydraulique de soupapes des moteurs à combustion interne Expired - Lifetime EP0244878B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87107613T ATE57989T1 (de) 1985-02-11 1986-01-30 Elektromagnetisch-hydraulischer ventiltrieb fuer verbrennungskraftmaschinen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3504639 1985-02-11
DE19853504639 DE3504639A1 (de) 1985-02-11 1985-02-11 Hydraulische steuerung fuer ventile von verbrennungskraftmaschinen
DE3534388 1985-09-26
DE3534388 1985-09-26

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP86101217.7 Division 1986-01-30

Publications (3)

Publication Number Publication Date
EP0244878A2 true EP0244878A2 (fr) 1987-11-11
EP0244878A3 EP0244878A3 (en) 1987-12-23
EP0244878B1 EP0244878B1 (fr) 1990-10-31

Family

ID=25829292

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87107613A Expired - Lifetime EP0244878B1 (fr) 1985-02-11 1986-01-30 Commande électromagnétique-hydraulique de soupapes des moteurs à combustion interne
EP86101217A Expired EP0191376B1 (fr) 1985-02-11 1986-01-30 Entraînement de soupape avec transmission hydraulique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP86101217A Expired EP0191376B1 (fr) 1985-02-11 1986-01-30 Entraînement de soupape avec transmission hydraulique

Country Status (4)

Country Link
EP (2) EP0244878B1 (fr)
JP (1) JPS61187505A (fr)
DE (2) DE3675387D1 (fr)
ES (1) ES8702577A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638484A1 (fr) * 1988-10-28 1990-05-04 Daimler Benz Ag Dispositif d'actionnement, operant hydrauliquement, pour une soupape de lancement, notamment dans un moteur a combustion interne
EP0405187A1 (fr) * 1989-06-27 1991-01-02 FEV Motorentechnik GmbH & Co. KG Dispositif électromagnétique de positionnement
DE4004876A1 (de) * 1990-02-16 1991-09-26 Ulrich Karrer Elektrisch betaetigte ventilsteuerung fuer periodisch betriebene ventile fuer kraftmaschinen
WO1992000460A1 (fr) * 1990-06-29 1992-01-09 Pi-Patente Gesellschaft Mit Beschränkter Haftung (Gmbh) Dispositif d'entrainement d'un outil anime d'un mouvement alternatif axial
DE19829857A1 (de) * 1998-07-05 2000-01-13 Bayerische Motoren Werke Ag Brennkraftmaschine mit einem pneumatischen und/oder hydraulischen Aktuator für ein Gaswechsel-Hubventil
EP1215369A3 (fr) * 2000-12-12 2003-01-29 Jenbacher Aktiengesellschaft Commande hydraulique variable pour soupape
DE102004057574A1 (de) * 2004-11-30 2006-06-08 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Variabler Ventiltrieb einer Brennkraftmaschine
WO2013000155A1 (fr) * 2011-06-30 2013-01-03 Lio Pang-Chian Dispositif de télécommande à transmission hydraulique

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1621816A3 (ru) * 1987-02-10 1991-01-15 Интератом Гмбх (Фирма) Гидравлическое устройство управлени клапанами двигател внутреннего сгорани
DE8717456U1 (de) * 1987-08-26 1988-12-29 INTERATOM GmbH, 5060 Bergisch Gladbach Rotationskolbenpumpe mit ungleichmäßiger Pumpleistung, insbesondere zur Ventilsteuerung von Verbrennungskraftmaschinen
DE19723924B4 (de) * 1997-06-06 2008-02-28 Hoffmann, Bernhard Elektrischer Linearmotor
DK176152B1 (da) * 2000-07-10 2006-10-16 Man B & W Diesel As Fremgangsmåde til aktivering af en udstödsventil til en forbrændingsmotor samt en sådan udstödsventil
DE102005017482B4 (de) 2005-04-15 2007-05-03 Compact Dynamics Gmbh Gaswechselventilaktor für einen ventilgesteuerten Verbrennungsmotor
DE102005017481B4 (de) 2005-04-15 2007-08-30 Compact Dynamics Gmbh Linearaktor
CN105822377B (zh) * 2016-05-04 2018-05-18 哈尔滨工程大学 电磁控制增压式配气系统
CN106958470A (zh) * 2017-05-23 2017-07-18 海南大学 电磁液压配气机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024109A1 (de) 1980-06-27 1982-01-21 Pischinger, Franz, Prof. Dipl.-Ing. Dr.Techn., 5100 Aachen Elektromagnetisch arbeitende stelleinrichtung
DE3311250A1 (de) 1983-03-28 1984-10-11 FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen Vorrichtung fuer elektromagnetisch arbeitende stelleinrichtungen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR471102A (fr) * 1913-10-02 1914-10-15 Ettore Bugatti Commande hydraulique de moteur avec piston de réglage formant compensateur
FR573596A (fr) * 1922-10-02 1924-06-26 Perfectionnements apportés à la commande de certains éléments, en mouvement périodique, de moteurs, notamment à celle d'éléments, tels que les soupapes, les organes d'injection et les dispositifs de graissage, dont le mouvement alterne avec des périodes de repos
DE467440C (de) * 1927-05-08 1928-10-25 Waggon Und Maschb Akt Ges Goer Druckfluessigkeitssteuerung fuer Ventile von Brennkraftmaschinen
FR932936A (fr) * 1946-07-31 1948-04-06 Perfectionnement aux commandes hydrauliques d'organes de moteurs et de machines diverses
FR941789A (fr) * 1947-01-16 1949-01-20 Dispositif de commande hydraulique de soupapes
US2635544A (en) * 1948-03-06 1953-04-21 Lossau Earl Hydraulic valve lifting mechanism
DE1002563B (de) * 1951-07-09 1957-02-14 Gerhard Schaller Hydraulischer Ventilantrieb fuer Brennkraftmaschinen
FR1380557A (fr) * 1963-10-02 1964-12-04 Glaenzer Spicer Sa Tourillon
DE2057639A1 (de) * 1969-12-05 1971-06-24 Inst Regelungstechnik Digitaler hydraulischer Stellantrieb
GB1591421A (en) * 1977-01-12 1981-06-24 Lucas Industries Ltd Valve operating mechanism
DE2907033A1 (de) * 1979-02-23 1980-09-04 Bosch Gmbh Robert Einrichtung zur betaetigung eines gaswechselventils bei brennkraftmaschinen
DE3046891A1 (de) * 1980-12-12 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnet
GB2122257B (en) * 1982-06-04 1986-04-16 Paul Julian Moloney Valve operating mechanism for internal combustion and like-valved engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024109A1 (de) 1980-06-27 1982-01-21 Pischinger, Franz, Prof. Dipl.-Ing. Dr.Techn., 5100 Aachen Elektromagnetisch arbeitende stelleinrichtung
DE3311250A1 (de) 1983-03-28 1984-10-11 FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen Vorrichtung fuer elektromagnetisch arbeitende stelleinrichtungen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638484A1 (fr) * 1988-10-28 1990-05-04 Daimler Benz Ag Dispositif d'actionnement, operant hydrauliquement, pour une soupape de lancement, notamment dans un moteur a combustion interne
EP0405187A1 (fr) * 1989-06-27 1991-01-02 FEV Motorentechnik GmbH & Co. KG Dispositif électromagnétique de positionnement
DE3920931A1 (de) * 1989-06-27 1991-01-03 Fev Motorentech Gmbh & Co Kg Elektromagnetisch arbeitende stelleinrichtung
DE4004876A1 (de) * 1990-02-16 1991-09-26 Ulrich Karrer Elektrisch betaetigte ventilsteuerung fuer periodisch betriebene ventile fuer kraftmaschinen
WO1992000460A1 (fr) * 1990-06-29 1992-01-09 Pi-Patente Gesellschaft Mit Beschränkter Haftung (Gmbh) Dispositif d'entrainement d'un outil anime d'un mouvement alternatif axial
US5337565A (en) * 1990-06-29 1994-08-16 Pi-Patent Gesellschaft Mit Beschraenkter Haftung (Gmbh) Device for driving a tool movable to and fro in axial direction
DE19829857A1 (de) * 1998-07-05 2000-01-13 Bayerische Motoren Werke Ag Brennkraftmaschine mit einem pneumatischen und/oder hydraulischen Aktuator für ein Gaswechsel-Hubventil
EP1215369A3 (fr) * 2000-12-12 2003-01-29 Jenbacher Aktiengesellschaft Commande hydraulique variable pour soupape
DE102004057574A1 (de) * 2004-11-30 2006-06-08 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Variabler Ventiltrieb einer Brennkraftmaschine
WO2013000155A1 (fr) * 2011-06-30 2013-01-03 Lio Pang-Chian Dispositif de télécommande à transmission hydraulique

Also Published As

Publication number Publication date
EP0191376A1 (fr) 1986-08-20
ES8702577A1 (es) 1986-12-16
DE3660265D1 (en) 1988-07-07
EP0244878A3 (en) 1987-12-23
ES551808A0 (es) 1986-12-16
EP0191376B1 (fr) 1988-06-01
DE3675387D1 (de) 1990-12-06
JPS61187505A (ja) 1986-08-21
EP0244878B1 (fr) 1990-10-31

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