DE102004037178A1 - Internal combustion engine has flange and/or coupling plate made from electrically non-conducting material with which flywheel and hence crankshaft are electrically isolated from machine, e.g. generator, to be driven - Google Patents

Internal combustion engine has flange and/or coupling plate made from electrically non-conducting material with which flywheel and hence crankshaft are electrically isolated from machine, e.g. generator, to be driven Download PDF

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Publication number
DE102004037178A1
DE102004037178A1 DE102004037178A DE102004037178A DE102004037178A1 DE 102004037178 A1 DE102004037178 A1 DE 102004037178A1 DE 102004037178 A DE102004037178 A DE 102004037178A DE 102004037178 A DE102004037178 A DE 102004037178A DE 102004037178 A1 DE102004037178 A1 DE 102004037178A1
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Germany
Prior art keywords
flange
internal combustion
combustion engine
flywheel
clutch disc
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Ceased
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DE102004037178A
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German (de)
Inventor
Martin Dipl.-Ing. Kaifler (FH)
Axel Dr.-Ing. Pöhls
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Rolls Royce Solutions GmbH
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MTU Friedrichshafen GmbH
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Priority to DE102004037178A priority Critical patent/DE102004037178A1/en
Publication of DE102004037178A1 publication Critical patent/DE102004037178A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/076—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The internal combustion engine has a flywheel (1) attached to the crankshaft and a coupling plate (4) fixed onto the flywheel via a flange (5), especially using attachment elements (2,3), for connecting a machine, especially a generator, driven by the engine. The flange and/or the coupling plate are made from an electrically non-conducting material with which the flywheel and hence the crankshaft are electrically isolated from the machine to be driven. An independent claim is also included for the following: (A) a flywheel (B) and n engine-generator unit.

Description

Die Erfindung betrifft eine Brennkraftmaschine mit einem an der Kurbelwelle derselben angebrachten Schwungrad und einer, insbesondere mittels Befestigungselementen, über einen Flansch an dem Schwungrad befestigten Kupplungsscheibe zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere einer Generatormaschine. Desweiteren betrifft die Erfindung ein Schwungrad für eine solche Brennkraftmaschine, sowie auch eine Motor-Generator-Einheit enthaltend eine solche Brennkraftmaschine.The The invention relates to an internal combustion engine with one on the crankshaft the same attached flywheel and one, in particular means Fasteners, over a flange attached to the flywheel clutch disc for Connection of a machine to be driven by the internal combustion engine, in particular a generator machine. Furthermore, the invention relates to a Flywheel for Such an internal combustion engine, as well as a motor-generator unit containing such an internal combustion engine.

Bei einer Motor-Generator-Einheit, bei der eine elektrische Generatormaschine über eine mit dem Schwungrad der Brennkraftmaschine verbundene Kupplungsscheibe angetrieben wird, besteht ein Problem darin, dass durch Induktion in der Welle der Generatormaschine erzeugte sogenannte Wellenspannungen an den Lagern der antreibenden Brennkraftmaschine, insbesondere an deren Kurbelwellenlagern Schäden durch Elektroerosion erzeugen können. Diese hat ihre Ursache in durch die anliegenden Wellenspannungen hervorgerufenen elektrischen Durchschlägen durch den im Lager vorhandenen dünnen Schmierfilm und führt zu einer Materialabtragung oder -verlagerung an den Lagerflächen. Frühzeitige massive Lagerschäden an der Brennkraftmaschine können die Folge sein. Ähnliche nachteilige Wirkungen können auch über den Abtrieb der Brennkraftmaschine eingetragene sonstige Spannungen wie Fremd- oder Kriechspannungen haben.at a motor-generator unit in which an electric generator machine via a Coupling disc connected to the flywheel of the internal combustion engine is driven, there is a problem in that by induction generated in the shaft of the generator machine so-called shaft voltages at the bearings of the driving internal combustion engine, in particular at their crankshaft bearings damage by electroerosion. This is caused by the applied shaft voltages produced electrical breakdowns through the existing in the camp thin lubricating film and leads to a material removal or relocation on the storage areas. early massive bearing damage on the internal combustion engine can to be the result. Similar adverse effects also over the output of the internal combustion engine registered other voltages such Have foreign or creep voltages.

Aus der EP 0 534 925 A2 ist ein Kupplungsglied zum Einbau in eine Antriebsverbindung bekannt, das ein Rohrteil und wenigstens einen stirnseitig anschließenden Flanschteil umfasst, wobei Rohr- und Flanschteile aus faserverstärktem Kunststoff bestehen. Zum Zwecke einer Steigerung der Fähigkeit, axialen und/oder radialen Versatz in der Antriebsverbindung auszugleichen, bildet der Flanschteil zwischen einem radial äußeren Befestigungsbereich und einem radial inneren Übertragungsbereich einen Verformungsbereich, der im Axialschnitt gesehen eine radial auswärts abnehmende Wandstärke und/oder eine Wellenprofilierung aufweist.From the EP 0 534 925 A2 a coupling member for installation in a drive connection is known, comprising a pipe part and at least one end-side adjoining flange part, wherein pipe and flange parts are made of fiber-reinforced plastic. For the purpose of increasing the ability to compensate axial and / or radial offset in the drive connection, the flange between a radially outer mounting portion and a radially inner transmission region forms a deformation region having seen in axial section a radially outwardly decreasing wall thickness and / or a wave profiling.

Die Aufgabe der Erfindung ist es eine Brennkraftmaschine der eingangs genannten Art zu schaffen, welche vor Lagerverschleiß durch Elektroerosion geschützt ist.The The object of the invention is an internal combustion engine of the above to create said type, which before bearing wear by Electro-erosion protected is.

Diese Aufgabe wird durch eine Brennkraftmaschine mit den Merkmalen des Anspruchs 1 gelöst.These Task is by an internal combustion engine with the characteristics of Claim 1 solved.

Vorteilhafte Weiterbildungen der erfindungsgemäßen Brennkraftmaschine sind in den Unteransprüchen angegeben.advantageous Further developments of the internal combustion engine according to the invention are in the subclaims specified.

Weiterhin soll durch die Erfindung ein elektrisch isolierendes Schwungrad für eine Brennkraftmaschine der oben genannten Art angegeben werden, mit dem Lagerverschleiß an der Brennkraftmaschine durch Elektroerosion vermieden wird. Ein solches Schwungrad ist Gegenstand des Anspruchs 10.Farther intended by the invention an electrically insulating flywheel for one Internal combustion engine of the above type can be specified with the bearing wear the internal combustion engine is avoided by electroerosion. One such flywheel is the subject of claim 10.

Schließlich soll durch die Erfindung eine Motor-Generator-Einheit mit einer Brennkraftmaschine der oben genannten Art geschaffen werden, bei der Lagerverschleiß durch Elektroerosion vermieden wird. Eine solche Motor-Generator-Einheit ist Gegenstand des Anspruchs 11.Finally, should by the invention, a motor-generator unit with an internal combustion engine of above-mentioned type, in the bearing wear by Electro-erosion is avoided. Such a motor-generator unit is the subject of claim 11.

Durch die Erfindung wird eine Brennkraftmaschine mit einem an der Kurbelwelle derselben angebrachten Schwungrad und einer, insbesondere mittels Befestigungselementen, über einen Flansch an dem Schwungrad befestigten Kupplungsscheibe zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere Generatormaschine geschaffen. Erfindungsgemäß ist es vorgesehen, dass der Flansch und/oder die Kupplungsscheibe aus einem elektrisch nichtleitenden Material hergestellt sind, durch das das Schwungrad und damit die Kurbelwelle der Brennkraftmaschine von der anzutreibenden Maschine elektrisch isoliert sind. Hierdurch wird Elektroerosion an den Lagern der Brennkraftmaschine, insbesondere an deren Kurbelwellenlagern, zuverlässig vermieden.By The invention will be an internal combustion engine with one on the crankshaft the same attached flywheel and one, in particular means Fasteners, over a flange attached to the flywheel clutch disc for Connection of a machine to be driven by the internal combustion engine, in particular generator machine created. It is according to the invention provided that the flange and / or the clutch disc of a are made electrically non-conductive material through which the Flywheel and thus the crankshaft of the internal combustion engine of the machine to be driven are electrically isolated. hereby is electroerosion at the bearings of the internal combustion engine, in particular at the crankshaft bearings, reliably avoided.

Gemäß einer vorteilhaften Ausführungsform der Erfindung ist die Kupplungsscheibe durch eine Kunststoffscheibe, insbesondere eine faserverstärkte Kunststoffscheibe, gebildet.According to one advantageous embodiment of the Invention is the clutch disc through a plastic disc, in particular a fiber-reinforced Plastic disc, formed.

Gemäß einer anderen vorteilhaften Ausführungsform der Erfindung ist der Flansch, über den die Kupplungsscheibe an dem Schwungrad befestigt ist, aus einem nichtleitenden Material hergestellt, und die Befestigungselemente umfassen erste Befestigungselemente und zweite Befestigungselemente, wobei mittels der ersten Befestigungselemente eine Verbindung zwischen dem Schwungrad und dem Flansch hergestellt ist und mittels der zweiten Befestigungselemente eine Verbindung zwischen dem Flansch und der Kupplungsscheibe hergestellt ist, und die ersten und zweiten Befestigungselemente zum Zwecke einer elektrischen Isolation am Flansch gegeneinander versetzt, das heißt, voneinander beabstandet angeordnet sind.According to one another advantageous embodiment the invention is the flange, over the clutch disc is attached to the flywheel, from a made of non-conductive material, and the fasteners include first fasteners and second fasteners, wherein by means of the first fastening elements a connection between the flywheel and the flange is made and by means of the second Fasteners a connection between the flange and the Clutch disc is made, and the first and second fasteners offset from each other for the purpose of electrical insulation on the flange, this means, are arranged spaced from each other.

Gemäß einer Weiterbildung hiervon ist es vorgesehen, dass die ersten und zweiten Befestigungselemente der Richtung des Um fangs des Flanschs folgend gegeneinander versetzt angeordnet sind.According to a further development thereof, it is provided that the first and second fastening elements following the direction of the order of the flange of the flange offset from each other angeord are net.

Insbesondere kann es vorgesehen sein, dass die ersten und zweiten Befestigungselemente jeweils abwechselnd am Flansch angeordnet sind.Especially it can be provided that the first and second fastening elements respectively are alternately arranged on the flange.

Vorzugsweise sind die Befestigungselemente durch Befestigungsschrauben gebildet.Preferably the fastening elements are formed by fastening screws.

Gemäß einer vorteilhaften Ausführungsform der Erfindung sind in dem Flansch Gewindehülsen vorgesehen, in welche die Befestigungsschrauben eingeschraubt sind.According to one advantageous embodiment of the Invention are provided in the flange threaded sleeves, in which the fastening screws are screwed in.

Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung sind erste Gewindehülsen, in welche die die Verbindung zwischen dem Schwungrad und dem Flansch herstellenden ersten Befestigungsschrauben eingeschraubt sind, zumindest von der Kupplungsscheibe berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs angeordnet, und zweite Gewindehülsen, in welche die die Verbindung zwischen dem Flansch und der Kupplungsscheibe herstellenden zweiten Befestigungsschrauben eingeschraubt sind, sind zumindest von dem Schwungrad berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs angeordnet.According to one particularly advantageous embodiment The invention relates to first threaded sleeves, in which the connection between the flywheel and the flange producing the first mounting screws are screwed, at least free of contact with the clutch disc arranged in the electrically non-conductive material of the flange, and second threaded sleeves, in which the the connection between the flange and the clutch disc are screwed producing second fastening screws, are at least free from the flywheel in the electric arranged non-conductive material of the flange.

Vorzugsweise ist der Flansch aus Kunststoff, insbesondere aus faserverstärktem Kunststoff hergestellt.Preferably the flange is made of plastic, in particular of fiber-reinforced plastic produced.

Weiterhin wird durch die Erfindung ein Schwungrad für eine Brennkraftmaschine, welches eine, insbesondere mittels Befestigungselementen, über einen Flansch an dem Schwungrad befestigte Kupplungsscheibe zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere Genera tormaschine, aufweist, geschaffen, welches die vorher genannten Merkmale aufweist.Farther is a flywheel for an internal combustion engine by the invention, which one, in particular by means of fasteners, over a Flange attached to the flywheel clutch disc for connection a machine to be driven by the internal combustion engine, in particular Genera tormaschine, has, created, which the aforementioned Features.

Schließlich wird durch die Erfindung auch eine Motor-Generator- Einheit enthaltend eine Brennkraftmaschine mit einem an der Kurbelwelle derselben angebrachten Schwungrad und einer, insbesondere mittels Befestigungselementen, über einen Flansch an dem Schwungrad befestigten Kupplungsscheibe zum Anschluss einer von der Brennkraftmaschine anzutreibenden Generatormaschine geschaffen, welches die vorher genannten Merkmale aufweist.Finally will by the invention also a motor-generator unit containing an internal combustion engine with a flywheel attached to the crankshaft thereof and one, in particular by means of fasteners, over a Flange attached to the flywheel clutch disc for connection a generator machine to be driven by the internal combustion engine, which has the aforementioned features.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung beschrieben.in the The following will be an embodiment of Invention described with reference to the drawing.

Es zeigt:It shows:

1 eine perspektivische, teilweise geschnittene Ansicht eines Schwungrads für eine Brennkraftmaschine, welches eine mittels Befestigungselementen über einen Flansch an dem Schwungrad befestigte Kupplungsscheibe zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere einer Generatormaschine aufweist, gemäß einem Ausführungsbeispiel der Erfindung; 1 a perspective, partially sectioned view of a flywheel for an internal combustion engine, which has a fastened by means of fastening elements via a flange on the flywheel clutch disc for connection of an engine to be driven by the engine, in particular a generator machine, according to an embodiment of the invention;

2a) und b) jeweils einen vergrößerten Ausschnitt aus 1 zur Erläuterung von Details des in 1 gezeigten Schwungrads; 2a ) and b) each have an enlarged section 1 to explain details of in 1 shown flywheel;

3 eine teilweise Querschnittsdarstellung des in 1 gezeigten Schwungrads gemäß dem Ausführungsbeispiel der Erfindung; und 3 a partial cross-sectional view of the in 1 shown flywheel according to the embodiment of the invention; and

4 einen vergrößerten Ausschnitt aus 3 zum Zwecke einer nochmals besseren Darstellung. 4 an enlarged section 3 for the purpose of an even better presentation.

In 1 ist ein Schwungrad 1 für eine Brennkraftmaschine gezeigt, welches eine mittels Befestigungsschrauben 2, 3 über einen Flansch 5 an dem Schwungrad 1 befestigte Kupplungsscheibe 4 aufweist. Die Kupplungsscheibe 4 dient zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere einer elektrischen Generatormaschine, welche zusammen mit der Brennkraftmaschine eine Motor-Generator-Einheit bildet.In 1 is a flywheel 1 shown for an internal combustion engine, which by means of fastening screws 2 . 3 over a flange 5 on the flywheel 1 attached clutch disc 4 having. The clutch disc 4 serves to connect a machine to be driven by the internal combustion engine, in particular an electric generator machine, which forms a motor-generator unit together with the internal combustion engine.

Gemäß dem dargestellten Ausführungsbeispiel der Erfindung ist der Flansch 5 aus einem elektrisch nichtleitenden Material hergestellt, durch das das Schwungrad 1 und damit auch die Kurbelwelle der Brennkraftmaschine von der anzutreibenden Maschine elektrisch isoliert sind.According to the illustrated embodiment of the invention, the flange 5 made of an electrically non-conductive material, through which the flywheel 1 and thus also the crankshaft of the internal combustion engine are electrically isolated from the machine to be driven.

Alternativ oder zusätzlich kann auch die Kupplungsscheibe 4 aus einem elektrisch nichtleitenden Material hergestellt sein. Dabei kann die Kupplungsscheibe 4 durch eine Kunststoffscheibe, insbesondere eine faserverstärkte Kunststoffscheibe, gebildet sein.Alternatively or additionally, also the clutch disc 4 be made of an electrically non-conductive material. In this case, the clutch disc 4 be formed by a plastic disc, in particular a fiber-reinforced plastic disc.

Wie 1 und im Detail die 2a) und 2b) zeigen, umfassen die Befestigungsschrauben 2, 3 erste Befestigungsschrauben 2 und zweite Befestigungsschrauben 3. Mittels der ersten Befestigungsschrauben 2 ist einerseits, wie 2a) zeigt, eine Verbindung zwischen dem Schwungrad 1 und dem Flansch 5 hergestellt, und mittels der zweiten Befestigungsschrauben 3 ist andererseits, wie 2b) zeigt, eine Verbindung zwischen dem Flansch 5 und der Kupplungsscheibe 4 hergestellt. Die ersten und zweiten Befestigungsschrauben 2, 3 sind zum Zwecke einer elektrischen Isolation am Flansch 5 der Richtung des Umfangs desselben folgend gegeneinander versetzt, das heißt, voneinander beabstandet, und jeweils abwechselnd angeordnet.As 1 and in detail the 2a ) and 2 B ), the fastening screws comprise 2 . 3 first fixing screws 2 and second fixing screws 3 , By means of the first fixing screws 2 on the one hand, how 2a ) shows a connection between the flywheel 1 and the flange 5 made, and by means of the second fastening screws 3 on the other hand, is how 2 B ) shows a connection between the flange 5 and the clutch disc 4 produced. The first and second fixing screws 2 . 3 are for the purpose of electrical insulation on the flange 5 following the direction of the circumference of the same following offset from each other, that is, voneinan the spaced, and each arranged alternately.

Weiterhin sind in dem Flansch 5 Gewindehülsen 6, 7 vorgesehen, in welche die Befestigungsschrauben 2, 3 eingeschraubt sind.Furthermore, in the flange 5 threaded sleeves 6 . 7 provided, in which the fastening screws 2 . 3 are screwed in.

Von diesen Gewindehülsen 6, 7 sind erste Gewindehülsen 6, in welche die die Verbindung zwischen dem Schwungrad 1 und dem Flansch 5 herstellenden ersten Befestigungsschrauben 2 eingeschraubt sind, unter Einhaltung eines kleinen, elektrisch isolierenden Abstandes von der Kupplungsscheibe 4 berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs 5 angeordnet, wie dies in der Querschnittsdarstellung der 3 und im Detail in 4 zu sehen ist. Zweite Gewindehülsen 7, in welche die die Verbindung zwischen dem Flansch 5 und der Kupplungsscheibe 4 herstellenden zweiten Befestigungsschrauben 3 eingeschraubt sind, sind unter Einhaltung eines kleinen, elektrisch isolierenden Abstandes von dem Schwungrad 1 berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs 5 angeordnet, wie dies in der perspektivischen Darstellung von 1 und insbesondere von 2b) gezeigt ist.From these threaded sleeves 6 . 7 are first threaded sleeves 6 into which the connection between the flywheel 1 and the flange 5 producing first fixing screws 2 are screwed, while maintaining a small, electrically insulating distance from the clutch disc 4 non-contact in the electrically non-conductive material of the flange 5 arranged as shown in the cross-sectional view of 3 and in detail in 4 you can see. Second threaded sleeves 7 into which the connection between the flange 5 and the clutch disc 4 producing second fastening screws 3 are screwed, while maintaining a small, electrically insulating distance from the flywheel 1 non-contact in the electrically non-conductive material of the flange 5 arranged as shown in the perspective view of 1 and in particular of 2 B ) is shown.

Der Flansch 5 ist aus Kunststoff, insbesondere aus faserverstärktem Kunststoff hergestellt.The flange 5 is made of plastic, in particular of fiber-reinforced plastic.

11
Schwungradflywheel
22
Befestigungsschraubefixing screw
33
Befestigungsschraubefixing screw
44
Kupplungsscheibeclutch disc
55
Flanschflange
66
Gewindehülsethreaded sleeve
77
Gewindehülsethreaded sleeve

Claims (11)

Brennkraftmaschine mit einem an der Kurbelwelle derselben angebrachten Schwungrad (1) und einer, insbesondere mittels Befestigungselementen (2, 3), über einen Flansch (5) an dem Schwungrad (1) befestigten Kupplungsscheibe (4) zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere Generatormaschine, dadurch gekennzeichnet, dass der Flansch (5) und/oder die Kupplungsscheibe (4) aus einem elektrisch nichtleitenden Material hergestellt sind, durch das das Schwungrad (1) und damit die Kurbelwelle der Brennkraftmaschine von der anzutreibenden Maschine elektrisch isoliert sind.Internal combustion engine with a flywheel attached to the crankshaft ( 1 ) and one, in particular by means of fastening elements ( 2 . 3 ), via a flange ( 5 ) on the flywheel ( 1 ) attached clutch disc ( 4 ) for connecting a machine to be driven by the internal combustion engine, in particular a generator machine, characterized in that the flange ( 5 ) and / or the clutch disc ( 4 ) are made of an electrically non-conductive material through which the flywheel ( 1 ) and thus the crankshaft of the internal combustion engine are electrically isolated from the machine to be driven. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Kupplungsscheibe (4) durch eine Kunststoffscheibe, insbesondere eine faserverstärkte Kunststoffscheibe, gebildet ist.Internal combustion engine according to claim 1, characterized in that the clutch disc ( 4 ) is formed by a plastic disc, in particular a fiber-reinforced plastic disc. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Flansch (5), über den die Kupplungsscheibe (4) an dem Schwungrad (1) befestigt ist, aus einem nichtleitenden Material hergestellt ist, und dass die Befestigungselemente (2, 3) erste Befestigungselemente (2) und zweite Befestigungselemente (3) umfassen, wobei mittels der ersten Befesti gungselemente (2) eine Verbindung zwischen dem Schwungrad (1) und dem Flansch (5) hergestellt ist und mittels der zweiten Befestigungselemente (3) eine Verbindung zwischen dem Flansch (5) und der Kupplungsscheibe (4) hergestellt ist, und die ersten und zweiten Befestigungselemente (2, 3) zum Zwecke einer elektrischen Isolation am Flansch (5) gegeneinander versetzt angeordnet sind.Internal combustion engine according to claim 1, characterized in that the flange ( 5 ) over which the clutch disc ( 4 ) on the flywheel ( 1 ) is made of a non-conductive material, and that the fastening elements ( 2 . 3 ) first fastening elements ( 2 ) and second fastening elements ( 3 ), wherein by means of the first fastening supply elements ( 2 ) a connection between the flywheel ( 1 ) and the flange ( 5 ) and by means of the second fastening elements ( 3 ) a connection between the flange ( 5 ) and the clutch disc ( 4 ), and the first and second fastening elements ( 2 . 3 ) for the purpose of electrical insulation on the flange ( 5 ) are offset from each other. Brennkraftmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die ersten und zweiten Befestigungselemente (2, 3) der Richtung des Umfangs des Flanschs (5) folgend gegeneinander versetzt angeordnet sind.Internal combustion engine according to claim 3, characterized in that the first and second fastening elements ( 2 . 3 ) the direction of the circumference of the flange ( 5 ) are arranged offset from each other following. Brennkraftmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die ersten und zweiten Befestigungselemente (2, 3) jeweils abwechselnd am Flansch (5) angeordnet sind.Internal combustion engine according to claim 4, characterized in that the first and second fastening elements ( 2 . 3 ) alternately on the flange ( 5 ) are arranged. Brennkraftmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Befestigungselemente (2, 3) durch Befestigungsschrauben gebildet sind.Internal combustion engine according to one of claims 1 to 5, characterized in that the fastening elements ( 2 . 3 ) are formed by fastening screws. Brennkraftmaschine nach Anspruch 4 oder 5 in Verbindung mit Anspruch 6, dadurch gekennzeichnet, dass in dem Flansch (5) Gewindehülsen (6, 7) vorgesehen sind, in welche die Befestigungsschrauben (2, 3) eingeschraubt sind.Internal combustion engine according to claim 4 or 5 in conjunction with claim 6, characterized in that in the flange ( 5 ) Threaded sleeves ( 6 . 7 ) are provided, in which the fastening screws ( 2 . 3 ) are screwed. Brennkraftmaschine nach Anspruch 7, dadurch gekennzeichnet, dass erste Gewindehülsen (6), in welche die die Verbindung zwischen dem Schwungrad (1) und dem Flansch (5) herstellenden ersten Befestigungsschrauben (2) eingeschraubt sind, zumindest von der Kupplungsscheibe (4) berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs (5) angeordnet sind, und dass zweite Gewindehülsen (7), in welche die die Verbindung zwischen dem Flansch (5) und der Kupplungsscheibe (4) herstellenden zweiten Befestigungsschrauben (3) eingeschraubt sind, zumindest von dem Schwungrad (1) berührungsfrei in dem elektrisch nichtleitenden Material des Flanschs (5) angeordnet sind.Internal combustion engine according to claim 7, characterized in that first threaded sleeves ( 6 ), in which the connection between the flywheel ( 1 ) and the flange ( 5 ) producing first fixing screws ( 2 ) are screwed, at least from the clutch disc ( 4 ) non-contact in the electrically non-conductive material of the flange ( 5 ) are arranged, and that second threaded sleeves ( 7 ), in which the connection between the flange ( 5 ) and the clutch disc ( 4 ) producing second fastening screws ( 3 ) are screwed in, at least from the flywheel ( 1 ) non-contact in the electrically non-conductive material of the flange ( 5 ) are arranged. Brennkraftmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Flansch (5) aus Kunststoff, insbesondere aus faserverstärktem Kunststoff hergestellt ist.Internal combustion engine according to one of claims 1 to 8, characterized in that the flange ( 5 ) made of plastic, in particular made of fiber-reinforced plastic. Schwungrad für eine Brennkraftmaschine, welches eine, insbesondere mittels Befestigungselementen (2, 3), über einen Flansch (5) an dem Schwungrad (1) befestigte Kupplungsscheibe (4) zum Anschluss einer von der Brennkraftmaschine anzutreibenden Maschine, insbesondere Generatormaschine, aufweist, mit den kennzeichnenden Merkmalen eines der Ansprüche 1 bis 9.Flywheel for an internal combustion engine, which, in particular by means of Befestigungsele menten ( 2 . 3 ), via a flange ( 5 ) on the flywheel ( 1 ) attached clutch disc ( 4 ) for connecting a machine to be driven by the internal combustion engine, in particular a generator machine, having the characterizing features of one of claims 1 to 9. Motor-Generator-Einheit enthaltend eine Brennkraftmaschine mit einem an der Kurbelwelle derselben angebrachten Schwungrad (1) und einer, insbesondere mittels Befestigungselementen (2, 3), über einen Flansch (5) an dem Schwungrad (1) befestigten Kupplungsscheibe (4) zum Anschluss einer von der Brennkraftmaschine anzutreibenden Generatormaschine, mit den kennzeichnenden Merkmalen eines der Ansprüche 1 bis 9.Motor-generator unit comprising an internal combustion engine with a flywheel attached to the crankshaft thereof ( 1 ) and one, in particular by means of fastening elements ( 2 . 3 ), via a flange ( 5 ) on the flywheel ( 1 ) attached clutch disc ( 4 ) for connecting a generator machine to be driven by the internal combustion engine, with the characterizing features of one of claims 1 to 9.
DE102004037178A 2004-07-30 2004-07-30 Internal combustion engine has flange and/or coupling plate made from electrically non-conducting material with which flywheel and hence crankshaft are electrically isolated from machine, e.g. generator, to be driven Ceased DE102004037178A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102009002953A1 (en) 2009-05-08 2011-02-10 Mtu Friedrichshafen Gmbh Flywheel, internal combustion engine with flywheel and system of an internal combustion engine and a machine to be driven, use of the system
RU2523512C2 (en) * 2009-11-20 2014-07-20 Закрытое Акционерное Общество "Комбарко" Sectional flywheel and method of its production
CN111779794A (en) * 2020-03-20 2020-10-16 上海航天控制技术研究所 Flywheel impact vibration damper under large impact environment

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US1182905A (en) * 1914-12-08 1916-05-16 William P B Hamilton Flexible shaft-coupling.
DE1910252A1 (en) * 1969-02-28 1970-11-19 Franz Schabmueller Elektromoto Attachment of a component to be electrically isolated from a carrier
US4407602A (en) * 1982-01-29 1983-10-04 General Electric Company Insulated coupling
JPH01108415A (en) * 1987-10-19 1989-04-25 Mitsubishi Electric Corp Electric insulation vacuum joint
EP0534927B1 (en) * 1991-09-24 1995-12-06 DR. ING. GEISLINGER & CO. SCHWINGUNGSTECHNIK GESELLSCHAFT m.b.H. Coupling element made of fiber-reinforced plastic
DE19937545A1 (en) * 1998-08-21 2000-02-24 Luk Lamellen & Kupplungsbau Drive cord or its component, especially for motor vehicle with combustion engine and/or gearing, having electric machine with rotor which can be disengaged by at least one clutch
EP1289099A2 (en) * 2001-08-25 2003-03-05 Lucas Aerospace Power Equipment Corporation Starter/generator to turbine insulated coupling
WO2003081064A1 (en) * 2002-03-26 2003-10-02 Zf Sachs Ag Device for coupling a housing arrangement of a coupling device to a rotor arrangement of an electric machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1182905A (en) * 1914-12-08 1916-05-16 William P B Hamilton Flexible shaft-coupling.
DE1910252A1 (en) * 1969-02-28 1970-11-19 Franz Schabmueller Elektromoto Attachment of a component to be electrically isolated from a carrier
US4407602A (en) * 1982-01-29 1983-10-04 General Electric Company Insulated coupling
JPH01108415A (en) * 1987-10-19 1989-04-25 Mitsubishi Electric Corp Electric insulation vacuum joint
EP0534927B1 (en) * 1991-09-24 1995-12-06 DR. ING. GEISLINGER & CO. SCHWINGUNGSTECHNIK GESELLSCHAFT m.b.H. Coupling element made of fiber-reinforced plastic
DE19937545A1 (en) * 1998-08-21 2000-02-24 Luk Lamellen & Kupplungsbau Drive cord or its component, especially for motor vehicle with combustion engine and/or gearing, having electric machine with rotor which can be disengaged by at least one clutch
EP1289099A2 (en) * 2001-08-25 2003-03-05 Lucas Aerospace Power Equipment Corporation Starter/generator to turbine insulated coupling
WO2003081064A1 (en) * 2002-03-26 2003-10-02 Zf Sachs Ag Device for coupling a housing arrangement of a coupling device to a rotor arrangement of an electric machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002953A1 (en) 2009-05-08 2011-02-10 Mtu Friedrichshafen Gmbh Flywheel, internal combustion engine with flywheel and system of an internal combustion engine and a machine to be driven, use of the system
US8857291B2 (en) 2009-05-08 2014-10-14 Mtu Friedrichshafen Gmbh Flywheel, internal combustion engine with flywheel and system comprising an internal combustion engine and a machine driven thereby
RU2523512C2 (en) * 2009-11-20 2014-07-20 Закрытое Акционерное Общество "Комбарко" Sectional flywheel and method of its production
CN111779794A (en) * 2020-03-20 2020-10-16 上海航天控制技术研究所 Flywheel impact vibration damper under large impact environment

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