WO2000053899A1 - Moteur a combustion interne comportant au moins un systeme de soupapes de commande - Google Patents

Moteur a combustion interne comportant au moins un systeme de soupapes de commande Download PDF

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Publication number
WO2000053899A1
WO2000053899A1 PCT/EP2000/002019 EP0002019W WO0053899A1 WO 2000053899 A1 WO2000053899 A1 WO 2000053899A1 EP 0002019 W EP0002019 W EP 0002019W WO 0053899 A1 WO0053899 A1 WO 0053899A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
internal combustion
combustion engine
sheets
stator
Prior art date
Application number
PCT/EP2000/002019
Other languages
German (de)
English (en)
Inventor
Andreas GRÜNDL
Bernhard Hoffmann
Alfred Krappel
Original Assignee
Continental Isad Electronic Systems Gmbh & Co. Ohg
Bayerische Motoren Werke Aktiengesellschaft
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
Application filed by Continental Isad Electronic Systems Gmbh & Co. Ohg, Bayerische Motoren Werke Aktiengesellschaft filed Critical Continental Isad Electronic Systems Gmbh & Co. Ohg
Publication of WO2000053899A1 publication Critical patent/WO2000053899A1/fr

Links

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
    • 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
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2105—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids comprising two or more coils

Definitions

  • the present invention relates to an internal combustion engine with at least one control valve arrangement.
  • the invention relates to an internal combustion engine with at least one combustion cylinder which has at least one control valve arrangement with an electric linear motor as an actuator for a valve member, in which the reciprocating movement of the valve member is not effected and controlled by a camshaft.
  • Such an electrically operated control valve arrangement is known from DE 197 23 923 AI.
  • the valve arrangement has an electric linear motor with a stator and a rotor.
  • the rotor is coupled to and actuates a valve member.
  • the stand is constructed from sheet metal, the surface of which is oriented perpendicular to the direction of movement of the rotor.
  • the stand also has teeth facing the rotor, each of which has a closed lateral surface facing the rotor.
  • the invention teaches an internal combustion engine with at least one combustion cylinder, which has at least one control valve arrangement with an electric linear motor as an actuator for a valve member, with a stator, which is formed by at least two mutually coaxially spaced hollow cylindrical stacks of iron sheets, the sheets are oriented substantially transversely to the direction of movement of a rotor, and the stator has webs formed by the sheet metal stack and each have a winding oriented parallel to the metal sheets between two adjacent webs, the rotor being coupled to the valve member and at least two coaxially spaced from one another has surrounding hollow cylinders formed essentially from sheet iron, these and the hollow cylindrical stack of sheets of the stator at least partially surrounding one another, forming an air gap.
  • Valve element can be set exactly. It is therefore not necessary to apply considerable kinetic energy to the valve member so that it takes on its end position. This means that considerably less energy is required to actuate the valve member than in the arrangement known from the prior art. This also means significantly less noise and less wear.
  • the arrangement of the stator winding makes it possible to keep the vibrating forces acting on the winding low, so that vibrations of the winding or friction of the winding on the Sheets are low. This makes it possible to make do with minimal insulation material or lining material of the winding chamber between the webs. This also contributes to the compactness and reliability of the overall arrangement. In addition, this results in a high power density even in the case of small-sized embodiments, since the filling factor of the winding chamber (winding volume in the winding chamber between the webs in relation to the total volume of the winding chamber) is high.
  • the sheets preferably have at least one central recess which contains iron material for connecting the sheets.
  • This iron material can be formed by (packed) iron wires that run the sheets across them
  • the iron material can also be formed by iron particles which are pressed into the recesses in the metal sheets by means of synthetic resin or the like.
  • the invention enables the construction of an actuator in which the at least one winding contributes to the effective generation of force in the linear motor over its entire extent.
  • the winding has no end windings, as is the case with conventional motors.
  • the reason for this is that the winding is completely accommodated between the sheets of the stator in the winding chambers and the winding does not protrude beyond the teeth of the stator in either the axial or the radial direction.
  • the valve arrangement according to the invention thus has an actuator which, compared to a conventional motor, has considerably less copper (wire) for generating a comparable magnetic field.
  • the rotor as an asynchronous rotor
  • Synchronous rotor or be designed as a reluctance rotor.
  • the runner In order to design the runner as a hybrid runner, between the two (in the axial direction) adjacent packages made of sheet iron copper or aluminum tires. These tires are dimensioned and arranged so that they have approximately the same axial dimension as the coils of the stator, with which they are also aligned in the rest position.
  • Radially inner (in particular the innermost) and radially outer (in particular the outermost) sheets of the stator are preferably essentially U-shaped in cross-section, the free ends or edges of the U-shaped sheets facing a hollow cylinder of the rotor.
  • the sheets of the stator and accordingly also the sheets of the rotor have a polygonal shape corresponding to one another. This allows the production of the sheet metal rings or a plurality of sheet metal ring sections which, when put together, result in a complete polygon cylinder, also from flat sheet metal material, which is bent accordingly.
  • At least two of the laminated sheets or sheet metal sections with a U-shaped cross section are oriented in the same direction.
  • the rotor is provided with a sensor
  • Path detection preferably coupled to a moving coil arrangement.
  • valve arrangement for an internal combustion engine, for example single or
  • the invention also relates to a linear motor which has one or more of the features of an electric linear motor, as has been described above.
  • valve arrangement with an electric linear motor as an actuator for a valve member of a valve-controlled internal combustion engine is schematically illustrated in longitudinal section.
  • valve arrangement shown in the drawing shows only the drive part and the valve member and the
  • Valve seat for the valve-controlled internal combustion engine.
  • the parts of the internal combustion engine that are not relevant for the understanding of the present invention are not further illustrated.
  • the internal combustion engine has a combustion cylinder (not shown), at the upper end of which at least one, as a rule, however, 2 to 5 (or 6) control valve arrangements with an electric linear motor 10 as an actuator for a valve member 12 are arranged.
  • the linear motor has a rotor 16 coupled to the valve member 12 via a rod 14 and a stator 18.
  • the stand 18 is formed by four hollow cylindrical sheet metal stacks 18a, 18b, 18c, 18d, which coaxially surround one another at a distance and whose sheets 20a, 20b, 20c, 20d are oriented essentially transversely to the direction of movement B of the rotor 16.
  • the sheet metal stacks 18a, 18b, 18c, 18d form webs or packs 22, each of which has a (closed) continuous polygon segment-shaped lateral surface.
  • two mutually adjacent iron sheet stacks 22 of one of the sheet metal stacks 18a, 18b, 18c, 18d of the stator 18 receive between them a winding 24 which is oriented parallel to the sheets 20a, 20b, 20c, 20d.
  • the radially innermost and radially outermost sheets 20a, 20d of the stand 18 are essentially U-shaped in cross section.
  • the free ends of the radially innermost U-shaped sheets 20a in the sheet stack 18a face the sheet stack 16a of the rotor 16 which is adjacent radially outward.
  • the free ends of the radially outermost U-shaped sheets 20d in the sheet stack 18d face the sheet stack 16c of the rotor 16 which is adjacent radially inward.
  • three of the U-shaped sheets 20a, 20d are oriented into one another in the same direction and accommodate one of the windings 24 in the polygon ring thus formed.
  • the individual webs 22 also have a correspondingly polygonal cylindrical surface.
  • the rotor 16 is formed by three hollow cylinders 16a, 16b, 16c, which coaxially surround one another at a distance, from iron sheet stacks, which surround the hollow-cylindrical stack 18a, 18b, 18c, 18d of the stator 18, in each case forming a polygon-cylindrical air gap between the rotor 16 and the stator 18 or interlock.
  • the type of connection of the individual windings 24 or their application of electrical current depends on the desired type of motor (single or multi-phase motor).
  • more than three hollow or stator hollow cylinders can also be provided to surround one another.
  • each of the sheets 20a of the inner stator laminate stack 18a has a recess 30 in which polymorphic iron material 38 or packed iron wires for magnetic connection of the sheets is contained.
  • each winding 24 is arranged over its entire extent between the webs 22 or laminated cores 18a, 18b, 18c, 18d without protruding winding heads being formed, it also contributes over its entire length to the effective generation of force in the actuator for the valve arrangement.
  • the rotor 16 is formed by hollow-cylindrical iron sheet stacks 16a, 16b, 16c, a copper or aluminum ring 34 being received after each row of sheets 21a, 21b, 21c.
  • the rotor 16 thus works as a hybrid rotor.
  • the rotor 16 is coupled to a sensor 36 for detecting the path of the rotor 16 in the direction of movement B.
  • the rotor 16 is supported against the housing 40 with a resonance spring arrangement 42.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un moteur à combustion interne comportant au moins un cylindre de combustion qui présente au moins un système de soupapes de commande avec un moteur linéaire (10) électrique comme actionneur pour un élément de soupape, un stator (18) constitué d'au moins deux piles de tôles feuilletées, sous forme cylindrique creuse, s'entourant mutuellement dans le sens coaxial, à distance l'une de l'autre. Les tôles sont orientées sensiblement transversalement au sens de mouvement (B) du rotor (16). Le stator présente des ailettes (22) formées par la pile de tôles et entre deux ailettes (22) adjacentes, ledit stator présente dans chaque cas un enroulement (24) orienté parallèlement aux tôles (20). Le rotor (16) est connecté à l'élément de soupape (12) et comporte au moins deux cylindres creux constitués principalement de tôle de fer, qui s'entourent mutuellement dans le sens coaxial, à distance l'un de l'autre. Ces cylindres creux et les piles de tôles feuilletées sous forme cylindrique creuse du stator (18) s'entourent mutuellement au moins en partie en interpénétration et forment ainsi un entrefer.
PCT/EP2000/002019 1999-03-08 2000-03-08 Moteur a combustion interne comportant au moins un systeme de soupapes de commande WO2000053899A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19910065A DE19910065C1 (de) 1999-03-08 1999-03-08 Verbrennungsmotor mit wenigstens einer Steuerventilanordnung
DE19910065.9 1999-03-08

Publications (1)

Publication Number Publication Date
WO2000053899A1 true WO2000053899A1 (fr) 2000-09-14

Family

ID=7900057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/002019 WO2000053899A1 (fr) 1999-03-08 2000-03-08 Moteur a combustion interne comportant au moins un systeme de soupapes de commande

Country Status (2)

Country Link
DE (1) DE19910065C1 (fr)
WO (1) WO2000053899A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1536108A1 (fr) * 2003-11-24 2005-06-01 Siemens Aktiengesellschaft Dispositif linéaire d'entraínement de soupapes
DE102005017482B4 (de) * 2005-04-15 2007-05-03 Compact Dynamics Gmbh Gaswechselventilaktor für einen ventilgesteuerten Verbrennungsmotor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708317A (en) * 1984-12-15 1987-11-24 Diesel Kiki Co., Ltd. Electromagnetic actuator
JPH05248214A (ja) * 1992-03-06 1993-09-24 Isuzu Ceramics Kenkyusho:Kk エンジンのバルブ駆動装置
DE19723923A1 (de) 1997-06-06 1998-12-10 Gruendl & Hoffmann Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor
JPH11210432A (ja) * 1998-01-22 1999-08-03 Nippon Soken Inc 電磁式弁駆動装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708317A (en) * 1984-12-15 1987-11-24 Diesel Kiki Co., Ltd. Electromagnetic actuator
JPH05248214A (ja) * 1992-03-06 1993-09-24 Isuzu Ceramics Kenkyusho:Kk エンジンのバルブ駆動装置
DE19723923A1 (de) 1997-06-06 1998-12-10 Gruendl & Hoffmann Ventilanordnung für einen ventilgesteuerten Verbrennungsmotor
JPH11210432A (ja) * 1998-01-22 1999-08-03 Nippon Soken Inc 電磁式弁駆動装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 002 (M - 1536) 6 January 1994 (1994-01-06) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30) *

Also Published As

Publication number Publication date
DE19910065C1 (de) 2000-07-20

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