DE1476095A1 - Internal combustion engine - Google Patents

Internal combustion engine

Info

Publication number
DE1476095A1
DE1476095A1 DE19651476095 DE1476095A DE1476095A1 DE 1476095 A1 DE1476095 A1 DE 1476095A1 DE 19651476095 DE19651476095 DE 19651476095 DE 1476095 A DE1476095 A DE 1476095A DE 1476095 A1 DE1476095 A1 DE 1476095A1
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engine
auxiliary units
hub
pulley
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.)
Pending
Application number
DE19651476095
Other languages
German (de)
Inventor
Leopold Jaentschke
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of DE1476095A1 publication Critical patent/DE1476095A1/en
Pending legal-status Critical Current

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/022—Chain drive
    • 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
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06—Endless member is a belt
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/08—Endless member is a chain
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

• ,1 M 62•, 1 M 62

PatentanmeldungPatent application

Firma Dr.Ing.H.c. F. Porsche KG Stuttgart-Zuffenhausen, Spitalwaldstr. 2Company Dr.Ing.H.c. F. Porsche KG Stuttgart-Zuffenhausen, Spitalwaldstr. 2

Brennkraftmas chine·Internal combustion engine

.. . Die Erfindung betrifft eine Brennkraftmaschine mit mindestens einer die Ventile steuernden Nockenwelle, die von der Kurbelwelle über ein Zugorgangetriebe angetrieben wird, das in einem in sich geschlossenen Gehäuse untergebracht ist, welches gleichzeitig Hilfsaggregate der Brennkraftmaschine trägt.... The invention relates to an internal combustion engine with at least one camshaft controlling the valves, which is driven by the crankshaft via a traction mechanism is, which is housed in a self-contained housing, which at the same time auxiliary units the internal combustion engine carries.

Bei Brennkraftmaschinen dieser Art ist es bereits bekannt, die Hilfsaggregate der Brennkraftmaschine an der Außenseite des das Zugorgangetriebe aufnehmenden Gehäuses in Verlängerung der Nocken- oder Kurbelwelle anzuordnen und unmittelbar von diesen aus anzutreiben. Hierbei ist ein genaues Fluchten der Hilfsaggregate mit den sie antreibenden 'Wellen notwendig, so daß eine umständliche und in der Herstellung aufwendige Zentrierung des Zugorgangehäuses gegenüber dem Kurbelgehäuse erforderlich ist. Da die Drehzahl der Nocken- bzw. Kurbelwelle meist nicht mit der Arbeitsdrehzahl der betreffenden Nebenaggregaten übereinstimmt, sind außerdem noch Zwischenuntersetzungen notwendig, die die Anlage ebenfalls komplizieren und verteuern·In internal combustion engines of this type, it is already known, the auxiliary units of the internal combustion engine on the To arrange the outside of the housing receiving the traction mechanism as an extension of the camshaft or crankshaft and to be driven directly from these. This requires the auxiliary units to be precisely aligned with those that drive them 'Waves necessary, so that a cumbersome and complex to manufacture centering of the Zugorgangehäuses opposite the crankcase is required. Since the speed of the camshaft or crankshaft usually does not match the working speed of the ancillary units concerned, intermediate reductions are also necessary, which also complicate and make the system more expensive

9 0 9 8 2 0/0344 "2~9 0 9 8 2 0/0344 " 2 ~

U76095U76095

Der Erfindung lag die Aufgabe zu Grunde, einen in der Herstellung billigen und dennoch betriebssicheren Antrieb sowie eine platzsparende Anordnung der Hilfsaggregate an der Brennkraftmaschine zu schaffen. . . Dies wird gemäß der Erfindung dadurch erreicht, daß das Zugorgangetriebe eine Umlenkrolle umfaßt, deren drehfest mit ihr verbundenen Lagerwelle die Hilfsaggregate der Brennkraftmaschine antreibt ο Dadurch, daß der Antrieb der Hilfsaggregate durch ein für den Betrieb der Maschine, d.h. für die Umlenkung sowie Dämpfung des Zugorganes des Nockenwellenantriebes ohnehin notwendiges Bauteil erfolgt und die Drehzahl der Umlenkrolle leicht derjenigen der Hilfsmaschine angepaßt werden kann, erübrigen sich in der Herstellung teure und aufwendige Antriebsmittel, wie Untersetzungsräder, Zwischenwellen oder dergleichen. . , Die Lagerwelle der Umlenkrolle steht unmittelbar mit den Hilfsaggregaten in treibender Verbindung, so dais zusätzliche Verbindungsmittel nicht notwendig sind. Um Fertigungsungenauigkeiten und Toleranzen am Gehäuse sowie der Umlenkrolle auf einfache Art ausgleichen zu können, ist weiter gemäß der Erfindung vorgesehen, daß die Umlenkrolle im wesentlichen aus einer Habe und einem Laufkranz für das Zugorgan besteht, , wobei die Nabe und der Laufkranz in axialer Richtung zueinander verstellbar sind.The invention was based on the object of providing a drive that is inexpensive to manufacture and yet reliable in operation and to create a space-saving arrangement of the auxiliary units on the internal combustion engine. . . this will achieved according to the invention in that the Zugorgangetrieb comprises a pulley whose rotatably connected to it Bearing shaft drives the auxiliary units of the internal combustion engine ο By the fact that the drive of the auxiliary units by one for the operation of the machine, i.e. for the deflection and damping of the pulling element of the camshaft drive Anyway necessary component takes place and the speed of the pulley is slightly that of the auxiliary machine can be adapted, there is no need to manufacture expensive and complex drive means, such as reduction gears, Intermediate shafts or the like. . , The bearing shaft of the deflection roller is directly with the auxiliary units in driving connection, so that additional connecting means are not necessary. About manufacturing inaccuracies and to be able to compensate tolerances on the housing and the deflection roller in a simple way is further According to the invention provided that the pulley consists essentially of a property and a tread for the There is a tension member, the hub and the running ring being adjustable in relation to one another in the axial direction.

In der Zeichnung, welche eine beispielsweiseIn the drawing, which one, for example

909820/0344909820/0344

H76095H76095

Ausführungsform der Erfindung zeigt, sindEmbodiment of the invention shows are

Fig. 1 ein Schnitt durch eine Hälfte einer als Motor mit gegenüberliegenden Zylinderreihen ausgebildeten luftgekühlten Brennkraftmaschine mit der erfindungsgemäßen Anordnung der Hilfsaggregate im Bereich des Gehäuses für den Steuerungsantrieb einer Zylinderreihe undFig. 1 is a section through half of an engine with opposite rows of cylinders trained air-cooled internal combustion engine with the arrangement according to the invention of the auxiliary units in the area of the housing for the control drive of a Cylinder bank and

Fig. 2 ein Schnitt nach der Linie II-II der Fig.Fig. 2 is a section along the line II-II of FIG.

In das Kurbelgehäuse 1 der Brennkraftmaschine sind in der Zeichnung nicht dargestellten Zylinder eingesetzt, die durch Luft, welche von einem Gebläse 2 gefördert wird, gekühlt werden. Auf den Zylindern ist ein Zylinderkopf befestigt, in welchem die ebenfalls nicht dargestellten Ventile sowie eine diese s/teuernde Nockenwelle 4 gelagert sind. An der Nockenwelle 4 ist ein Kettenrad 5 befestigt, in welches eine Rollenkette 6 eingreift. Die Rollenkette 6 wird von einem an der Kurbelwelle 7 der Maschine befestigten Ritzel 8 angetrieben. Die Rollenkette 6 ist in einem Gehäuse 9 untergebracht, das über Flansche 9' auf bekannte Weise am Kurbelgehäuse 1 der Maschine befestigt ist. Das Gehäuse 9 dient ferner zur Aufnahme eines auf die Rollenkette 6 einwirkenden Schwingungsdämpfer 10 sowie einer Umlenkrolle 11. Die Umlenkrolle 11 besteht im wesentlichen aus einem LaufkranzIn the crankcase 1 of the internal combustion engine not shown cylinders are used in the drawing, the be cooled by air which is conveyed by a fan 2. There is a cylinder head on the cylinders attached, in which the valves, also not shown, and a camshaft 4 controlling them are mounted are. A sprocket 5, in which a roller chain 6 engages, is attached to the camshaft 4. the Roller chain 6 is driven by a pinion 8 attached to the crankshaft 7 of the machine. The roller chain 6 is housed in a housing 9, which via flanges 9 'in a known manner on the crankcase 1 of the Machine is attached. The housing 9 also serves to accommodate a vibration damper acting on the roller chain 6 10 and a deflection roller 11. The deflection roller 11 consists essentially of a running ring

-4-909820/0344 -4-909820 / 0344

-V-V

H76095H76095

sowie einer Nabe 13. Der Laufkranz 12 ist unter Zwischenschaltung von Distanzscheiben 14 durch Schrauben 15 auf der Habe 13 befestigt. Me Nabe 13 ist drehfest mit einer Lagerwelle 16 verbunden, welche in einem Lagerschild 17 einer ölpumpe 18 drehbar gehalten ist. Die Ölpumpe 18 ist in einer Ausnehmung 19 in einer Wand 20 des Gehäuses 9 untergebracht und unter Vermittlung eines Flansches 21 sowie Bolzen 22 mit dieser befestigt» Sie weist in bekannter Weise zwei Zahnräder 23,24 auf, wobei das Zahnrad 23 drehfest mit der Lagerwelle 16 verbunden ist, und das Rad 24 lose auf einer Achse 25 gehalten wird ο In der Wandung 20 des Gehäuses 9 sind außerdem noch Ölbohrungen 27 untergebracht, welche zu und von der Ölpumpe 18, bzw» einem unmittelbar außerhalb am Gehäuse 9 angeordneten Ölkühler 26 führen.and a hub 13. The running ring 12 is interposed of spacer washers 14 attached to the hat 13 by screws 15. Me hub 13 is non-rotatable connected to a bearing shaft 16 which is rotatably held in a bearing plate 17 of an oil pump 18. the Oil pump 18 is in a recess 19 in a wall 20 of the housing 9 housed and fixed with the intermediary of a flange 21 and bolts 22 » In a known manner, it has two gear wheels 23, 24, the gear wheel 23 being non-rotatably connected to the bearing shaft 16 is, and the wheel 24 is held loosely on an axle 25 o In the wall 20 of the housing 9 are also still accommodated oil bores 27, which to and from the oil pump 18, or »one immediately outside on the housing 9 arranged oil cooler 26 lead.

Das der Ölpumpe 18 abgewandte Ende der Lagerwelle 16 (Fig. 2) ist mit einem Keilwellenprofil 28 versehen, in welches ein entsprechendes Gegenprofil eines Hitzeis 29 eingreift. Durch eine Mutter 30 ist das Ritzel 29 axial gesichert. Das Ritzel 29 arbeitet mit einem Schraubenrad 32 zusammen, das auf einer Welle 31 befestigt ist. Die Welle 31 ist in einer Bohrung 34 eines das Gehäuse 9 abschließenden Deckel 33 untergebracht und wird mittels einer Hülse 34' in Lage gehalten. Die Welle 31 steht mit ihrem, dem Schraubenrad 32 abgewandten Ende unter Vermittlung eines Kupplungsstückes 35 mit einem Zündverteiler 36 The end of the bearing shaft 16 facing away from the oil pump 18 (FIG. 2) is provided with a splined shaft profile 28, into which a corresponding counter profile of a heat 29 engages. The pinion 29 is axially secured by a nut 30. The pinion 29 cooperates with a helical gear 32 which is fastened on a shaft 31. The shaft 31 is accommodated in a bore 34 of a cover 33 closing off the housing 9 and is held in position by means of a sleeve 34 '. The end of the shaft 31 facing away from the helical gear 32 is connected to a coupling piece 35 with an ignition distributor 36

90 98 20/03 A 4 -5-90 98 20/03 A 4 -5-

5" H760955 "H76095

in treibender Verbindung. Der Zündverteiler 36 ist durch einen Lagerzapfen 37 in der Bohrung 34 gehalten und durch einen Klemmring 38 gegen Verdrehen gesichert·in driving connection. The distributor 36 is held in the bore 34 by a bearing journal 37 and secured against twisting by a clamping ring 38

-6--6-

909820/0344909820/0344

Claims (1)

" Η76095"Η76095 PatentansprücheClaims 1ο Brennkraftmaschine mit mindestens einer die Ventile steuernden Nockenwelle, die von der Kurbelwelle über ein Zugorgangetriebe angetrieben wird, das in einem in sich geschlossenen Gehäuse untergebracht ist, welches gleichzeitig Hilfsaggregate der Brennkraftmaschine trägt, dadurch gekennzeichnet, daß das Zugorgangetriebe eine Umlenkrolle (11) umfaßt, deren drehfest mit ihr verbundene Lagerwelle (16) die Hilfsaggregate (18,36) der Brennkraftmaschine antreibt.1ο internal combustion engine with at least one the camshaft controlling the valves, which is driven by the crankshaft via a traction mechanism, which is housed in a self-contained housing, which at the same time auxiliary units of the Internal combustion engine, characterized in that the Zugorgangetrieb comprises a pulley (11), whose bearing shaft (16) connected to it in a rotationally fixed manner, the auxiliary units (18,36) drives the internal combustion engine. 2β Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerwelle (16) der Umlenkrolle (11) unmittelbar mit den Hilfsaggregaten in treibender Verbindung steht.2β internal combustion engine according to claim 1, characterized characterized in that the bearing shaft (16) of the pulley (11) is directly connected to the auxiliary units driving connection. 3. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die ümlenkrolle im wesentlichen aus einer Habe (13) und einem Laufkranz (12) für das Zugorgan (6) besteht, wobei die Nabe und der Laufkranz in axialer Richtung zueinander verstellbar sind.3. Internal combustion engine according to claim 1, characterized in that the guide roller substantially consists of a hub (13) and a tread (12) for the pulling element (6), the hub and the tread are adjustable to each other in the axial direction. 909820/0344909820/0344
DE19651476095 1965-06-19 1965-06-19 Internal combustion engine Pending DE1476095A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0037085 1965-06-19

Publications (1)

Publication Number Publication Date
DE1476095A1 true DE1476095A1 (en) 1969-05-14

Family

ID=7375098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19651476095 Pending DE1476095A1 (en) 1965-06-19 1965-06-19 Internal combustion engine

Country Status (1)

Country Link
DE (1) DE1476095A1 (en)

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