DE4107067A1 - Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor - Google Patents

Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor

Info

Publication number
DE4107067A1
DE4107067A1 DE19914107067 DE4107067A DE4107067A1 DE 4107067 A1 DE4107067 A1 DE 4107067A1 DE 19914107067 DE19914107067 DE 19914107067 DE 4107067 A DE4107067 A DE 4107067A DE 4107067 A1 DE4107067 A1 DE 4107067A1
Authority
DE
Germany
Prior art keywords
gear wheels
camshafts
servo motor
control mechanism
cam shaft
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Withdrawn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
DE19914107067
Other languages
German (de)
Inventor
Dalibor Plesek
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19914107067 priority Critical patent/DE4107067A1/en
Publication of DE4107067A1 publication Critical patent/DE4107067A1/en
Withdrawn legal-status Critical Current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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains

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

Abstract

Cam shaft phase control mechanism for two cam shafts in which the control gear wheels (4) are so arranged that the belt or chain sections extending from the gear wheels run parallel or almost parallel to each other. The gear wheels are displaced by, for example, a hydraulic cylinder or a servo motor (7) and as a result of the displacement the inlet and outlet cam shafts are phase adjusted. ADVANTAGE - Phase control mechanism in which number of control and diversion wheels is kept to min.

Description

In der Patentanmeldung P 37 05 966.1 ist die Prinziplösung einer Nockenwellenphasensteuerung dargestellt, wobei die Phasenverschiebung mittels Beeinflussung des Antriebsgliedes der Nockenwelle - Zahnriemen oder Kette - bewirkt wird, Bild 1. In Anlehnung an die Prinziplösung wurden in der Patent­ anmeldung P 38 35 333.4 Lösungsvorschläge zur stufenlosen Nockenwellenphasenverschiebung für verschiedene Motorbauarten erarbeitet. Weiterhin wurde nachgewiesen, daß ein ausreichender Nockenwellenphasenversatz und die Funktionalität der Steuerun­ gen nur dann möglich sind, wenn die von den Steuerrollen- bzw. Zahnrädern ausgehenden Riemen- oder Kettenstränge parallel oder nahezu parallel zueinander verlaufen.The patent application P 37 05 966.1 shows the principle solution of a camshaft phase control, the phase shift being effected by influencing the drive element of the camshaft - toothed belt or chain - Figure 1. Based on the principle solution, proposed solutions for patent application P 38 35 333.4 stepless camshaft phase shift developed for different engine types. Furthermore, it has been demonstrated that a sufficient camshaft phase shift and the functionality of the controls are only possible if the belt or chain strands emanating from the control rollers or gears run parallel or almost parallel to one another.

Für Reihenverbrennungsmotoren zeigt die Patentanmeldung P 38 35 333.4 einen Lösungsvorschlag zur stufenlosen Phasen­ verschiebung von Einlaß- und Auslaßnockenwellen, wobei insgesamt neun Steuer- und Umlenkrollen (Zahnräder) benötigt werden, Bild 2. Es ist anzunehmen, daß bei einem Kettenantrieb die Kette durch die zahlreichen Zahnräder sehr beansprucht und dementsprechend schnell verschlissen wird.For in-line internal combustion engines, patent application P 38 35 333.4 shows a proposed solution for the stepless phase shift of intake and exhaust camshafts, a total of nine control and deflection pulleys (gear wheels) being required, Figure 2. It can be assumed that with a chain drive the chain through the numerous Gears are very stressed and therefore quickly worn out.

Die Aufgabe dieser Erfindung besteht deshalb darin, die erforderliche Anzahl von Steuer- und Umlenkzahnrädern auf ein Minimum zu reduzieren und dennoch einen unabhängigen und stufenlosen Phasenversatz von Einlaß- und Auslaßnocken­ wellen bei Reihenverbrennungsmotoren zu ermöglichen.The object of this invention is therefore that required number of timing and idler gears to reduce a minimum and yet an independent and stepless phase shift of intake and exhaust cams to enable waves in inline internal combustion engines.

Im Bild 3 ist schematisch ein Nockenwellenantrieb dargestellt. Von dem Kurbelwellenzahnrad 5 der Kurbelwelle 6 werden über eine Kette oder einen beidseitig verzahnten Zahnriemen 3 die Einlaß- und Auslaßnockenwellenzahnräder 1 der Nockenwellen 2 angetrieben.A camshaft drive is shown schematically in Figure 3. The intake and exhaust camshaft gearwheels 1 of the camshafts 2 are driven by the crankshaft gearwheel 5 of the crankshaft 6 via a chain or a toothed belt 3 toothed on both sides.

Die Aufgabe dieser Erfindung wird dadurch gelöst und im Bild 3 an einem Ausführungsbeispiel dargestellt, daß die Steuerzahn­ räder 4 derart angeordnet werden, so daß ein paralleler Ver­ lauf der von den Steuerzahnrädern 4 ausgehenden Ketten- bzw. Riemenstränge zueinander gewährleistet ist. Beim Verschieben der Steuerzahnräder 4 durch entsprechende Steuerungsorgane wie beispielsweise Hydraulikzylinder oder Servo- oder Schrittmotoren 7 werden die Einlaß- und Auslaßnockenwellen stufenlos phasenversetzt.The object of this invention is achieved and shown in the image 3 of an exemplary embodiment in that the control tooth are arranged wheels 4 in such a way so that a parallel Ver ensures run emanating from the timing gears 4 chain or belt strands to each other. When shifting of the timing gears 4 by appropriate control organs such as hydraulic cylinders or servo or stepper motors 7, the inlet and exhaust camshafts are phase shifted continuously.

Die Vorteile dieser Erfindung bestehen darin, daß bei Reihen­ verbrennungsmotoren die zum Phasenversatz einer Einlaß- und einer Auslaßnockenwelle erforderliche Anzahl der Steuer- und Umlenkzahnräder auf ein Minimum reduziert wird.The advantages of this invention are that in rows internal combustion engines to phase shift an intake and an exhaust camshaft required number of control and Deflection gears is reduced to a minimum.

Claims (2)

1. Nockenwellenphasensteuerung dadurch gekennzeichnet, daß die Steuerzahnräder (4) derart angeordnet werden, so daß die von den Steuerzahnrädern (4) ausgehenden Riemen- oder Kettenstränge parallel oder nahezu parallel zueinander verlaufen.1. camshaft phase control, characterized in that the control gears ( 4 ) are arranged so that the outgoing from the control gears ( 4 ) belt or chain strands parallel or almost parallel to each other. 2. Nockenwellenphasensteuerung nach Anspruch 1 dadurch gekennzeichnet, daß durch das Verschieben der Steuerzahn­ räder (4) die Einlaß- und/ Auslaßnockenwellen phasenversetzt werden.2. camshaft phase control according to claim 1, characterized in that the displacement of the timing gear wheels ( 4 ), the inlet and / or exhaust camshafts are out of phase.
DE19914107067 1991-03-06 1991-03-06 Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor Withdrawn DE4107067A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914107067 DE4107067A1 (en) 1991-03-06 1991-03-06 Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914107067 DE4107067A1 (en) 1991-03-06 1991-03-06 Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor

Publications (1)

Publication Number Publication Date
DE4107067A1 true DE4107067A1 (en) 1992-09-10

Family

ID=6426556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914107067 Withdrawn DE4107067A1 (en) 1991-03-06 1991-03-06 Cam shaft phase control mechanism for two camshafts - has control gear wheels displaced by cylinder or servo motor

Country Status (1)

Country Link
DE (1) DE4107067A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045197A1 (en) * 2003-10-29 2005-05-19 Sl-Trade Marks Gmbh Rotary piston thermal engine device
GB2437151A (en) * 2006-04-07 2007-10-17 Paul Brian Chatten Mechanism for varying the relative phase angle of pulleys or sprockets connected by a chain or toothed belt
EP2826964A1 (en) * 2013-07-15 2015-01-21 MWM GmbH Variable actuation timing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045197A1 (en) * 2003-10-29 2005-05-19 Sl-Trade Marks Gmbh Rotary piston thermal engine device
US7328579B2 (en) 2003-10-29 2008-02-12 Sl Trade Marks Gmbh Rotary piston heat engine system
GB2437151A (en) * 2006-04-07 2007-10-17 Paul Brian Chatten Mechanism for varying the relative phase angle of pulleys or sprockets connected by a chain or toothed belt
GB2437151B (en) * 2006-04-07 2011-04-06 Paul Brian Chatten Mechanism for varying the phase angle of pulleys or sprockets when connected by a continuous toothed belt or chain to provide discreet valve timing
EP2826964A1 (en) * 2013-07-15 2015-01-21 MWM GmbH Variable actuation timing device

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