DE10023124C1 - Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing - Google Patents

Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing

Info

Publication number
DE10023124C1
DE10023124C1 DE2000123124 DE10023124A DE10023124C1 DE 10023124 C1 DE10023124 C1 DE 10023124C1 DE 2000123124 DE2000123124 DE 2000123124 DE 10023124 A DE10023124 A DE 10023124A DE 10023124 C1 DE10023124 C1 DE 10023124C1
Authority
DE
Germany
Prior art keywords
stator
crankshaft
rotor
starter system
starter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE2000123124
Other languages
German (de)
Inventor
Helmut Reiter
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.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE2000123124 priority Critical patent/DE10023124C1/en
Application granted granted Critical
Publication of DE10023124C1 publication Critical patent/DE10023124C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The starter system uses an electric starter motor with a stator (8) and a rotor (6), which can be switched for operation as a generator, its rotor coupled to the crankshaft (1) of the reciprocating piston machine. The rotor and the stator of the starter motor are fitted radially around at least one of the crankshaft bearings (2), e.g. the stator is attached to the crank housing and supports the crankshaft bearing shell (7).

Description

Die Erfindung betrifft eine Vorrichtung der im Oberbegriff des Patentanspruches 1 genannten Art.The invention relates to a device in the preamble of claim 1 Art.

Wie aus der EP 0 569 347 A2 bekannt ist, wurde bereits für eine elektrische Ma­ schine die Funktionen von Starter und Generator für eine Hubkolbenmaschine zu­ sammengefasst. Die zur elektrischen Maschine zugehörige und separat angeord­ nete Steuereinrichtung schaltet je nach Bedarf zwischen der Funktion als Stromver­ braucher (Starter) und Stromerzeuger (Generator) um. Der Stator der elektrischen Maschine ist ortsfest mit der Hubkolbenmaschine verbunden, auf der Kurbelwelle der Hubkolbenmaschine ist der Rotor angeordnet.As is known from EP 0 569 347 A2, an electrical Ma seem to the functions of starter and generator for a reciprocating piston machine summarized. The associated with the electrical machine and arranged separately Nete control device switches between the function as a power supply as required consumer (starter) and power generator (generator) around. The stator of the electrical The machine is permanently connected to the reciprocating machine, on the crankshaft The rotor is arranged in the reciprocating piston machine.

Nachteilig an dieser Lösungsvariante sind der für die elektrische Maschine benö­ tigte Bauraum im Motorraum und das zusätzliche Gewicht des Maschinengehäuses.A disadvantage of this solution variant are that required for the electrical machine space in the engine compartment and the additional weight of the machine housing.

Aufgabe ist es, eine Anordnung für eine elektrische Maschine mit der Doppelfunkti­ on Starter und Generator aufzuzeigen, die geringen Bauraum im Motorraum benö­ tigt und leicht ist.The task is to create an arrangement for an electrical machine with the double function on starter and generator to show the small space required in the engine compartment is light and easy.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. This object is achieved by the features of claim 1 solved.  

Bei dieser Konstruktion entfällt die Befestigung der elektrische Maschine außerhalb der Hubkolbenmaschine. Hieraus resultiert vorteilhaft der angestrebte Bauraumge­ winn im Motorraum. Um den Bauraum für die elektrische Maschine nicht innerhalb des Kurbelgehäuses zu verlieren, wird Material des Kurbelgehäuses im Lagerbe­ reich durch Bauelemente der elektrischen Maschine ersetzt.With this construction, there is no need to fasten the electrical machine outside the reciprocating machine. This advantageously results in the desired installation space winn in the engine compartment. To the space for the electrical machine is not within Losing the crankcase becomes material of the crankcase in the warehouse richly replaced by components of the electrical machine.

Die angestrebte Gewichtsersparnis resultiert aus dem Verzicht auf ein separates Maschinengehäuse für die elektrische Maschine. Durch die Anordnung des Rotors wird dieser oder die Kurbelwelle direkt, ohne Kraftübertragung über eine Schwung­ scheibe, angetrieben. Hierdurch kann die Schwungscheibe, da sie keine Antriebs­ kräfte übertragen muss, ebenfalls leichtgewichtiger ausgelegt werden.The desired weight saving results from the absence of a separate one Machine housing for the electrical machine. By arranging the rotor this or the crankshaft becomes direct, without power transmission via a swing disc, driven. This allows the flywheel to be no drive force must also be designed to be lighter.

Nach Anspruch 2 kann in jedes Kurbelwellenlager der Hubkolbenmaschine eine elektrische Maschine eingebaut werden. Bei dem somit möglichen, modularen Auf­ bau ist es von Vorteil, dass für jeden Hubkolbenmaschinen-Typ, wie beispielsweise für Vier-, Sechs, Acht- oder 12-Zylindermotoren, je nach elektrischer Verschaltung, verschiedene Spannungen oder Stromstärken, die für den jeweiligen Typ beson­ ders geeignet sind, realisierbar sind.According to claim 2 can in each crankshaft bearing of the reciprocating machine electrical machine can be installed. With the possible modular opening construction, it is advantageous that for each type of reciprocating machine, such as for four, six, eight or 12 cylinder engines, depending on the electrical connection, different voltages or currents that are special for the respective type suitable, realizable.

Ferner kann die elektrische Maschine als Zusatzgenerator für einen bereits vorhan­ denen, bezüglich der elektrischen Leistung nicht vergrößerbaren Generator einge­ setzt werden.Furthermore, the electrical machine can already exist as an additional generator for one the generator, which cannot be enlarged with regard to the electrical power be set.

Gemäß Anspruch 4 rotiert der Rotor nicht direkt auf dem Statormaterial. Somit ist ein, für die Funktion der elektrischen Maschine benötigter, Luftspalt zwischen Rotor und Stator stets gewährleistet. Die Kurbelwellenlagerschale kann ein eigenes Bau­ teil, beispielsweise in Form von eingesetzten Lagerschalen sein. Alternativ bietet sich die auch die Beschichtung des Stators mit Lagerwerkstoff auf der dem Rotor zugewandten Seite an. Das kann beispielsweise durch Auftragsschweißen erfolgen.According to claim 4, the rotor does not rotate directly on the stator material. So is an air gap between the rotor required for the functioning of the electrical machine and stator always guaranteed. The crankshaft bearing shell can have its own construction part, for example in the form of inserted bearing shells. Alternatively offers the coating of the stator with bearing material on the rotor facing side. This can be done, for example, by cladding.

In Fig. 1 ist ein bevorzugtes Ausführungsbeispiel der Erfindung dargestellt.In Fig. 1, a preferred embodiment of the invention is shown.

Fig. 1 zeigt einen Längsschnitt durch ein nicht weiter dargestelltes Kurbelgehäuse einer Hubkolbenmaschine mit einer Kurbelwelle 1, die in einem Kurbelwellenlager 2, bestehend aus einem Lagerstuhl 3 und einem Lagerdeckel 4, verbaut ist. Der La­ gerstuhl 3 ist ein Teil des Kurbelgehäuses. In das Kurbelwellenlager 2 ist eine elektrische Maschine 5, hier ein Gleichstrommotor, integriert. Diese besteht aus einem Rotor 6, einem Strom leitenden Kurbelwellenlagerschale 7 aus Lagerwerkstoff und einem Stator 8. In dem Stator 8 sind Magnete 9, eine Bürste 10, sowie eine Druck­ spiralfeder 11 angeordnet. Fig. 1 shows a longitudinal section through a crankcase, not shown, of a reciprocating engine with a crankshaft 1 , which is installed in a crankshaft bearing 2 , consisting of a bearing block 3 and a bearing cover 4 . The La gerstuhl 3 is part of the crankcase. An electrical machine 5 , here a direct current motor, is integrated in the crankshaft bearing 2 . This consists of a rotor 6 , a current-conducting crankshaft bearing shell 7 made of bearing material and a stator 8 . In the stator 8 magnets 9 , a brush 10 , and a compression coil spring 11 are arranged.

Der Rotor 6 ist ortsfest auf der Kurbelwelle 1 im Bereich des Kurbelwellenlagers 2 verbaut und rotiert gemeinsam mit der Kurbelwelle 1 in der Kurbelwellenlagerschale 7. Radial um die Kurbelwellenlagerschale 7 ist der Stator 8 angeordnet. In diesem befinden sich die Magnete 9, deren Anzahl an die Anforderungen an die elektrische Maschine 5 angepaßt ist. Zwischen zwei Magneten 9 befindet sich zur Stromab­ nahme die Bürste 10, eine Kohlebürste, die von der Druckspiralfeder 11 mit Vor­ spannung gegen den Rotor 6 gedrückt wird. Durch eine Bohrung 12 im Lagerstuhl 3 ist ein Kabel 13, welches mit der Bürste 10 leitend verbunden ist, eingebracht. Die weitere Verlegung des Kabels 13 im Kurbelgehäuse erfolgt durch Verklebung oder mechanischer Befestigung.The rotor 6 is installed on the crankshaft 1 in the area of the crankshaft bearing 2 and rotates together with the crankshaft 1 in the crankshaft bearing shell 7 . The stator 8 is arranged radially around the crankshaft bearing shell 7 . In this are the magnets 9 , the number of which is adapted to the requirements of the electrical machine 5 . Between two magnets 9 is the Stromab the brush 10 , a carbon brush, which is pressed by the coil spring 11 with voltage against the rotor 6 before. A cable 13 , which is conductively connected to the brush 10 , is introduced through a bore 12 in the bearing bracket 3 . The further laying of the cable 13 in the crankcase is done by gluing or mechanical fastening.

Grundsätzlich eignet sich jede Art elektrischer Maschine für den Einsatz als Starter oder Generator. Neben dem hier dargestellten Prinzip einer Gleichstrommaschine können als weitere Ausführungsvarianten der Erfindung Wechselstrom-, Dreh­ stromsynchron- und Drehstromasynchronmaschinen eingesetzt werden. Deren je­ weilige Funktionsweise ist beispielsweise im Fachkundebuch "Elektrotechnik", Ver­ lag EUROPA-Lehrmittel, Auflage 9, 1972, Kapitel 9, ausführlich beschrieben. In principle, any type of electrical machine is suitable for use as a starter or generator. In addition to the principle of a DC machine shown here, AC, three-phase synchronous and three-phase asynchronous machines can be used as further embodiment variants of the invention. Their respective functioning is described in detail, for example, in the specialist book "Electrical Engineering", Ver lag EUROPA-Lehrmittel, edition 9 , 1972 , chapter 9.

BezugszeichenlisteReference list

11

Kurbelwelle
crankshaft

22

Kurbelwellenlager
Crankshaft bearings

33rd

Lagerstuhl
Camp chair

44

Lagerdeckel
Bearing cap

55

elektrische Maschine
electrical machine

66

Rotor
rotor

77

Kurbelwellenlagerschale
Crankshaft bearing shell

88th

Stator
stator

99

Magnet
magnet

1010th

Bürste
brush

1111

Druckspiralfeder
Compression coil spring

1212th

Bohrung
drilling

1313

Kabel
electric wire

Claims (7)

1. Startersystem für eine Hubkolbenmaschine mit einer, in einem Kurbelgehäuse in Kurbelwellenlagern gelagerten Kurbelwelle und einer elektrischen Maschine mit einem Rotor und einem Stator, die über eine Steuereinrichtung auf Gene­ ratorbetrieb umschaltbar ist, wobei der Rotor der elektrischen Maschine mit der Kurbelwelle verbunden ist, dadurch gekennzeichnet, dass sich radial um mindestens ein Kurbelwellenla­ ger (2) der Rotor (6) und der Stator (8) erstrecken. 1. Starter system for a reciprocating piston machine with a crankshaft mounted in a crankcase in crankshaft bearings and an electrical machine with a rotor and a stator, which can be switched over to a generator control unit, the rotor of the electrical machine being connected to the crankshaft, thereby characterized in that the rotor ( 6 ) and the stator ( 8 ) extend radially around at least one crankshaft bearing ( 2 ). 2. Startersystem nach Anspruch 1, dadurch gekennzeichnet, dass der Stator (8) im Kurbelgehäuse im Bereich zumindest eines Kurbelwellenlagers (2) angeordnet ist.2. Starter system according to claim 1, characterized in that the stator ( 8 ) is arranged in the crankcase in the region of at least one crankshaft bearing ( 2 ). 3. Startersystem nach zumindest einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass der Stator (8) eine Kurbelwellenlagerschale (7) trägt und ortsfest an dem Kurbelgehäuse (2) angeordnet ist.3. Starter system according to at least one of the preceding claims, characterized in that the stator ( 8 ) carries a crankshaft bearing shell ( 7 ) and is arranged in a stationary manner on the crankcase ( 2 ). 4. Startersystem nach zumindest einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass die der Kurbelwelle (1) zugewandten Flächen des Stators (8) mit einem Lagerwerkstoff versehen sind.4. Starter system according to at least one of the aforementioned claims, characterized in that the surfaces of the stator ( 8 ) facing the crankshaft ( 1 ) are provided with a bearing material. 5. Startersystem nach zumindest einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass zumindest eine Bürste (10) in dem Stator (8) angeordnet ist.5. Starter system according to at least one of the preceding claims, characterized in that at least one brush ( 10 ) is arranged in the stator ( 8 ). 6. Startersystem nach zumindest einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass die Bürste (10) leitend mit dem Rotor (6) in Kontakt steht.6. Starter system according to at least one of the preceding claims, characterized in that the brush ( 10 ) is in contact with the rotor ( 6 ). 7. Startersystem nach zumindest einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass mindestens zwei Lagerdeckel (4) zu einem Bedplate zusammenfassbar sind.7. Starter system according to at least one of the preceding claims, characterized in that at least two bearing caps ( 4 ) can be combined to form a bedplate.
DE2000123124 2000-05-11 2000-05-11 Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing Expired - Fee Related DE10023124C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000123124 DE10023124C1 (en) 2000-05-11 2000-05-11 Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000123124 DE10023124C1 (en) 2000-05-11 2000-05-11 Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing

Publications (1)

Publication Number Publication Date
DE10023124C1 true DE10023124C1 (en) 2001-10-25

Family

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DE2000123124 Expired - Fee Related DE10023124C1 (en) 2000-05-11 2000-05-11 Starter system for reciprocating piston machine e.g. automobile engine, can be switched for operation as a generator, has starter motor with stator and rotor fitted radially around at least one crankshaft bearing

Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201601C1 (en) * 2002-01-16 2003-06-05 Audi Hungaria Motor Kft Internal combustion engine with crankshaft in crankcase, has starter/generator rotor formed on crankshaft in axial position of balance weight(s) or crank web, stator fixed relative to crankcase
AT510988A4 (en) * 2011-03-03 2012-08-15 Avl List Gmbh Internal combustion engine
DE102013219572A1 (en) 2013-09-27 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Starter generator for an internal combustion engine
DE102014201830A1 (en) 2014-02-03 2015-08-06 Bayerische Motoren Werke Aktiengesellschaft Starter generator for an internal combustion engine
DE102016217511A1 (en) 2016-09-14 2018-03-15 Continental Automotive Gmbh Combined electric and combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569347A2 (en) * 1992-05-05 1993-11-10 Franz Dipl.Ing.Dr. Laimböck Starter device for a motor vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569347A2 (en) * 1992-05-05 1993-11-10 Franz Dipl.Ing.Dr. Laimböck Starter device for a motor vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201601C1 (en) * 2002-01-16 2003-06-05 Audi Hungaria Motor Kft Internal combustion engine with crankshaft in crankcase, has starter/generator rotor formed on crankshaft in axial position of balance weight(s) or crank web, stator fixed relative to crankcase
WO2003061099A2 (en) 2002-01-16 2003-07-24 Audi Hungaria Motor Kft. Internal combustion engine with a crankshaft mounted in a crankcase with the starter/generator arranged on the crankshaft
WO2003061099A3 (en) * 2002-01-16 2003-12-24 Audi Hungaria Motor Kft Internal combustion engine with a crankshaft mounted in a crankcase with the starter/generator arranged on the crankshaft
AT510988A4 (en) * 2011-03-03 2012-08-15 Avl List Gmbh Internal combustion engine
AT510988B1 (en) * 2011-03-03 2012-08-15 Avl List Gmbh Internal combustion engine
DE102013219572A1 (en) 2013-09-27 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Starter generator for an internal combustion engine
DE102014201830A1 (en) 2014-02-03 2015-08-06 Bayerische Motoren Werke Aktiengesellschaft Starter generator for an internal combustion engine
DE102014201830B4 (en) * 2014-02-03 2021-07-01 Bayerische Motoren Werke Aktiengesellschaft Starter generator for an internal combustion engine
DE102016217511A1 (en) 2016-09-14 2018-03-15 Continental Automotive Gmbh Combined electric and combustion engine

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