DE3434428A1 - Control drive in internal combustion engines - Google Patents

Control drive in internal combustion engines

Info

Publication number
DE3434428A1
DE3434428A1 DE19843434428 DE3434428A DE3434428A1 DE 3434428 A1 DE3434428 A1 DE 3434428A1 DE 19843434428 DE19843434428 DE 19843434428 DE 3434428 A DE3434428 A DE 3434428A DE 3434428 A1 DE3434428 A1 DE 3434428A1
Authority
DE
Germany
Prior art keywords
toothed belt
control drive
internal combustion
combustion engines
drive
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.)
Withdrawn
Application number
DE19843434428
Other languages
German (de)
Inventor
Hans-Peter 7420 Dottingen Länge
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.)
MOTO SPEZIAL
Original Assignee
MOTO SPEZIAL
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 MOTO SPEZIAL filed Critical MOTO SPEZIAL
Priority to DE19843434428 priority Critical patent/DE3434428A1/en
Publication of DE3434428A1 publication Critical patent/DE3434428A1/en
Withdrawn legal-status Critical Current

Links

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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • F16H7/023—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts with belts having a toothed contact surface or regularly spaced bosses or hollows for slipless or nearly slipless meshing with complementary profiled contact surface of a pulley
    • 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
    • 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
    • F01L1/024—Belt 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Control drive running in the oil bath in internal combustion engines by means of a standard, high tensile polyurethane toothed belt with associated toothed belt wheels.

Description

Steuerungsantrieb bei Brennkraftmaschinen Control drive in internal combustion engines

Vorliegende Erfindung betrifft einen Nockenwellen- und/oder Olpumpenantrieb mittels eines im ölbad laufenden Zahnriemens.The present invention relates to a camshaft and / or oil pump drive by means of a toothed belt running in an oil bath.

Bei Verbrennungskraftmaschinen mit obenliegender Nockenwelle ist es bekannt, den Nockenwellenantrieb gegebenenfalls zusammen mit dem Antrieb der Ölpumpe über eine im Ölbad laufende Kette zu bewerkstelligen.In internal combustion engines with an overhead camshaft, it is known, the camshaft drive possibly together with the drive of the oil pump to be accomplished via a chain running in an oil bath.

Nachteilig bei dieser Art des Antriebs einer Nockenwelle ist die Geräuschentwicklung, die Verschleißanfälligkeit, Wartungsbedürftigkeit sowie das aufgrund von Wärmedehnung notwendige Kettenspiel, was unmittelbar zu einer ungenauen Nockenwellen- und damit Ventil- und Zündsteuerung führt.The disadvantage of this type of camshaft drive is the noise it generates, the susceptibility to wear and tear, the need for maintenance and that due to thermal expansion necessary Chain play, which directly leads to inaccurate camshaft and thus valve and ignition control leads.

In Anbetracht der geschilderten Nachteile des bekannten Kettenantriebs ist die der Erfindung zugrunde liegende Aufgabe darin zu sehen, einen Nockenwellen- und/oder Ulpumpenantrieb vorzuschlagen, der frei von den obengenannten Nachteilen ist.In view of the described disadvantages of the known chain drive the object underlying the invention is to be seen in a camshaft and / or to propose Ulpumpenantrieb which is free from the disadvantages mentioned above is.

Diese Aufgabe wird dadurch gelöst, daß bei Verbrennungskraftmaschinen mit obenliegender Nockenwelle der Nockenwellen-und/oder Ulpumpenantrieb mittels eines im Ölbad laufenden Zahnriemens erfolgt.This object is achieved in that in internal combustion engines with overhead camshaft the camshaft and / or Ulpumpenantrieb means of a toothed belt running in an oil bath.

Entgegen der einhelligen Auffassung einschlägiger Fachkreise, daß bislang bekannte Zahnriemen für ein Arbeiten im Ölbad und unter Temperaturbelastungen, wie sie bei Verbrennungskraftmaschinen auftreten, absolut ungeeignet sind, hat der Erfinder Langzeitversuche mit im ölbad laufenden, hohen Temperaturen ausgesetzten Zahnriemen durchgeführt, und dabei festgestellt, daß ein Zahnriemen unter den vorgenannten Einsatzbedingungen absolut einwandfrei arbeitet und gegenüber einem Kettenantrieb folgende Vorteile aufweist; 1) Wesentlich längere Lebensdauer, 2) absolut wartungsfrei während der gesamten Motorlebensdauer, 3) absolut spielfreier Antrieb, 4) klagloser und einwandfreier Ausgleich auftretender Wärmedehnungen, 5) nahezu geräuschloses Arbeiten, 6) geringer Reibungswiderstand und damit höhere nutzbare Motorleistung, 7) geringeres Gewicht, und 8) erheblich kostengünstiger.Contrary to the unanimous opinion of relevant specialist circles that previously known toothed belts for working in an oil bath and under temperature loads, as they occur in internal combustion engines, are absolutely unsuitable, has the Inventor long-term experiments with exposed to high temperatures in an oil bath Toothed belt carried out, and found that a toothed belt among the aforementioned Operating conditions works absolutely flawlessly and compared to a chain drive has the following advantages; 1) Much longer service life, 2) absolutely maintenance-free during the entire life of the engine, 3) absolutely backlash-free drive, 4) faultless and perfect compensation of occurring thermal expansions, 5) almost noiseless operation, 6) low frictional resistance and thus higher usable Engine power, 7) lower weight, and 8) significantly less expensive.

Weitere Einzelheiten der Erfindung werden nachstehend anhand eines Ausführungsbeispiels in Verbindung mit der zugehörigen Zeichnung, die einen Nockenwellen- und Ölpumpenantrieb mittels Zahnriemen zeigt, näher beschrieben.Further details of the invention are given below with reference to a Embodiment in conjunction with the accompanying drawing, which shows a camshaft and shows oil pump drive by means of toothed belts, described in more detail.

In der Zeichnung ist ein Nockenwellenantrieb dargestellt, bei dem die Nockenwelle 1 ein Nockenwellenrad 2 und die Kurbelwelle 3 ein halb so großes Kurbelwellenrad 4 trägt.In the drawing, a camshaft drive is shown in which the camshaft 1 is a camshaft gear 2 and the crankshaft 3 is half as large Crankshaft gear 4 carries.

Weiterhin kann noch ein weiteres Ölpumpenrad 5 vorgesehen werden, das die Welle 6 einer ölpumpe antreibt.Furthermore, another oil pump wheel 5 can be provided, which drives the shaft 6 of an oil pump.

Bei einem Nockenwellenantrieb üblicher Art, beispielsweise einem Motorradmotor mit obenliegender Nockenwelle, sind die Antriebsräder 2, 4 und 5 als Kettenräder ausgebildet, über die eine, wie aus der Zeichnung hervorgehend , Rollenkette geführt ist.With a camshaft drive of the usual type, for example a motorcycle engine with an overhead camshaft, the drive wheels 2, 4 and 5 are chain wheels trained over the one, as can be seen from the drawing, Roller chain is guided.

Das Ganze läuft in einem (nicht dargestellten) Ulbad, um u.a.The whole thing runs in a (not shown) Ulbad, among other things.

die Rollenkette zu schmieren.lubricate the roller chain.

Bei dem erfindungsgemäßen gesteuerten Antrieb einer Nockenwelle sind die Kettenräder 2, 4 und 5 durch in gleicher Relation zueinander stehende Zahnriemenräder ersetzt und anstelle der Rollenkette ist ein Endloszahnriemen 7 mit einer zugfesten Einlage und einer Vielzahl auf beiden Seiten des Zahnriemens angeformten Zähnen aus Polyurethan geführt.In the controlled drive of a camshaft according to the invention the chain wheels 2, 4 and 5 by toothed belt wheels that are in the same relation to one another replaced and instead of the roller chain is an endless toothed belt 7 with a tensile strength Insert and a large number of teeth formed on both sides of the toothed belt made of polyurethane.

Da auch dieser Steuerantrieb für den Motor weiterhin im (31 bad arbeitet, sind die Antriebsräder 2, 4 und 5 im Bereich der Zähne, der Zahnlücken und der Zahnflanken mit Drainagen versehen, über die anhaftendes Ö1 beim Eingreifen des Zahnriemens in die Antriebsräder schnell nach außen verdrängt werden kann.Since this control drive for the motor continues to work in the (31 bad, are the drive wheels 2, 4 and 5 in the area of the teeth, the tooth gaps and the tooth flanks provided with drainage over the adhering oil when the toothed belt engages in the drive wheels can be quickly displaced to the outside.

Zum gleichen Zweck kann auch der Zahnriemen 7 selbst mit Durchbrüchen oder Drainagen versehen sein. Da aufgrund von Langzeitversuchen einwandfrei nachgewiesen werden konnte, daß auch handelsübliche Polyurethan-Doppelzahnriemen einwandfrei im Ulbad und unter Temperaturbelastung arbeiten, kann ohne großen Aufwand und ohne Umkonstruktion bei handelsüblichen Verbrennungskraftmaschinen mit Steuerungsantrieb durch eine Rollenkette auf eine Zahnriemenantriebssteuerung umgerüstet werden. Als einzige Maßnahme dazu müssen die bisherigen Kettenräder durch entsprechende Zahnriemenräder mit zugehörigem zugfestem Doppelzahnriemen ersetzt werden.For the same purpose, the toothed belt 7 itself can also have openings or drainage. As proven perfectly on the basis of long-term tests it could be that commercial polyurethane double timing belts also work properly Working in the Ulbad and under temperature stress can be done without great effort and without Redesign with commercially available Internal combustion engines with Control drive converted to a toothed belt drive control by means of a roller chain will. The only way to do this is to replace the previous chain wheels with the appropriate Toothed belt pulleys are replaced with the associated tensile double toothed belt.

Ein so umgerüsteter Steuerungsantrieb weist eine über der Motorlaufzeit liegende Lebensdauer auf und ist während dieser Zeit absolut wartungsfrei. Gleichzeitig wird die Ventil- und Zündsteuerung erheblich genauer, was zu einem besseren Abgasverhalten, geringerem Verbrauch und höherer Motorleistung führt.A control drive retrofitted in this way has a run time over the motor service life and is absolutely maintenance-free during this time. Simultaneously the valve and ignition control is much more precise, which leads to better exhaust gas behavior, lower consumption and higher engine performance.

- Leerseite -- blank page -

Claims (5)

Anspriiche 0 Steuerungsantrieb bei Brennkraftmaschinen, dadurch gekennzeichnet, daß die im Olbad laufende Rollenkette mit ihren zugehörigen Kettenrädern durch einen handelsüblichen Zahnriemen (7) und entsprechende Zahnriemenräder (2, 4) ersetzt wird. Claims 0 control drive in internal combustion engines, characterized in that that the roller chain running in the oil bath with its associated sprockets through a commercially available toothed belt (7) and corresponding toothed belt pulleys (2, 4) replaced will. 2. 2. Steuerungsantrieb nach Anspruch 1, dadurch gekennzeichnet, daß der Zahnriemen aus Polyurethan mit zugfester Einlage und einer Vielzahl beidseitig angeformter Zähne besteht. Control drive according to claim 1, characterized in that the Toothed belts made of polyurethane with a high tensile strength insert and a large number of molded on both sides Teeth. 3. 3. Steuerungantrieb nach Anspruch 1, dadurch gekennzeichnet, daß die Zahnriemenräder (2, 4 und 5) Drainagen aufweisen. Control drive according to Claim 1, characterized in that the Toothed belt pulleys (2, 4 and 5) have drainages. 4. 4th Steuerungsantrieb nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Zahnriemen (7) Drainagen aufweist. Control drive according to Claim 1 and 2, characterized in that that the toothed belt (7) has drainages. 5.5. Steuerungsantrieb nach Anspruch 4, dadurch gekennzeichnet, daß der Zahnriemen (7) Öffnungen besitzt.Control drive according to claim 4, characterized in that the Toothed belt (7) has openings.
DE19843434428 1984-09-19 1984-09-19 Control drive in internal combustion engines Withdrawn DE3434428A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843434428 DE3434428A1 (en) 1984-09-19 1984-09-19 Control drive in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843434428 DE3434428A1 (en) 1984-09-19 1984-09-19 Control drive in internal combustion engines

Publications (1)

Publication Number Publication Date
DE3434428A1 true DE3434428A1 (en) 1986-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843434428 Withdrawn DE3434428A1 (en) 1984-09-19 1984-09-19 Control drive in internal combustion engines

Country Status (1)

Country Link
DE (1) DE3434428A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259182A2 (en) * 1986-09-05 1988-03-09 Brookside Group Inc Air movement apparatus
WO2005080770A2 (en) 2004-02-21 2005-09-01 Schaeffler Kg Flexible drive of an internal combustion engine
WO2005119088A1 (en) 2004-06-03 2005-12-15 Schaeffler Kg Traction mechanism for an internal combustion engine
WO2006018110A1 (en) * 2004-08-17 2006-02-23 Schaeffler Kg Steering support for a steering device of a motor vehicle
WO2007036959A1 (en) * 2005-09-27 2007-04-05 Dayco Europe S.R.L. Con Unico Socio Belt drive for use in oil provided with a shoe
WO2008009544A1 (en) * 2006-07-18 2008-01-24 Schaeffler Kg Oil-lubricated traction mechanism drive of an internal combustion engine
EP2302260A2 (en) 2004-06-03 2011-03-30 Schaeffler Technologies AG & Co. KG Traction mechanism for an internal combustion engine
WO2015173487A1 (en) * 2014-05-13 2015-11-19 Peugeot Citroen Automobiles Sa Transmission system comprising a guide

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259182A2 (en) * 1986-09-05 1988-03-09 Brookside Group Inc Air movement apparatus
EP0259182A3 (en) * 1986-09-05 1989-03-22 Brookside Group Inc Air movement apparatus
WO2005080770A2 (en) 2004-02-21 2005-09-01 Schaeffler Kg Flexible drive of an internal combustion engine
WO2005119088A1 (en) 2004-06-03 2005-12-15 Schaeffler Kg Traction mechanism for an internal combustion engine
EP2302260A2 (en) 2004-06-03 2011-03-30 Schaeffler Technologies AG & Co. KG Traction mechanism for an internal combustion engine
WO2006018110A1 (en) * 2004-08-17 2006-02-23 Schaeffler Kg Steering support for a steering device of a motor vehicle
WO2007036959A1 (en) * 2005-09-27 2007-04-05 Dayco Europe S.R.L. Con Unico Socio Belt drive for use in oil provided with a shoe
WO2008009544A1 (en) * 2006-07-18 2008-01-24 Schaeffler Kg Oil-lubricated traction mechanism drive of an internal combustion engine
WO2015173487A1 (en) * 2014-05-13 2015-11-19 Peugeot Citroen Automobiles Sa Transmission system comprising a guide
FR3021084A1 (en) * 2014-05-13 2015-11-20 Peugeot Citroen Automobiles Sa TRANSMISSION SYSTEM COMPRISING A GUIDE

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