DE3443499A1 - Chain-chain crank mechanism - Google Patents

Chain-chain crank mechanism

Info

Publication number
DE3443499A1
DE3443499A1 DE19843443499 DE3443499A DE3443499A1 DE 3443499 A1 DE3443499 A1 DE 3443499A1 DE 19843443499 DE19843443499 DE 19843443499 DE 3443499 A DE3443499 A DE 3443499A DE 3443499 A1 DE3443499 A1 DE 3443499A1
Authority
DE
Germany
Prior art keywords
chain
crank mechanism
chains
connecting rod
joint
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Withdrawn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
DE19843443499
Other languages
German (de)
Inventor
Gerhard 5210 Troisdorf Orend
Werner Orend
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 DE19843443499 priority Critical patent/DE3443499A1/en
Publication of DE3443499A1 publication Critical patent/DE3443499A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H19/00Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/084Characterised by the construction of the motor unit the motor being of the rodless piston type, e.g. with cable, belt or chain
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00Engines characterised by fuel-air mixture compression
    • F02B1/02Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission Devices (AREA)

Abstract

The object on which the chain-chain crank mechanism is based is, in the conversion of a reciprocating motion to a rotary motion or vice versa, to reduce engine friction and hence fuel consumption and wear, to achieve smoother running of the engine and to reduce production costs in comparison with the crank mechanism of the spark-ignition and diesel engine. The characteristic of the chain-chain crank mechanism is that it is a hybrid mechanism. Fig. 2 of the drawing shows that in the section in which the chain wheels are not engaged by the link chains and which accounts for 75% of the stroke, no frictional losses occur in the joints of the connecting rod, in contrast to the crank mechanism. This is due to the fact that in the said range the operative spacing for the power-transmitting connecting rod is constant. On the other hand, where the chain wheels are engaged by the chains (25% of the stroke), the chain-chain crank mechanism has the features of a pure crank mechanism with the braking effect characteristic of the latter, the said braking effect ensuring that the oscillating mass is brought to a halt before the dead-centre positions and is not accelerated abruptly following these. <IMAGE>

Description

Ketten-Kettenkurbeltrieb Chain crank drive

Die Erfindung betrifft einen Ketten-Kettenkurbeltrieb zur Umwandlung einer hin- und hergehenden Bewegung in eine Rotationsbewegung oder umgekehrt mit zwei auf je zwei ellen angebrachten, durch äe eine Gelenkkette verbundenen Kettenruderpaaren, sowie einer Schubstange, an deren einem Ende sich ein die beiden Ketten verbindendes Gelenk und ihrem anderen Ende ein zweites Gelenk befindet, das in einem in einer Bohrung gleitendem Kolben eingebaut ist.The invention relates to a chain-crank drive for conversion a reciprocating motion into a rotary motion or vice versa two pairs of chain rudders attached to two sides and connected by a link chain, as well as a push rod, at one end of which a connecting rod connects the two chains Joint and at its other end is a second joint that is in one in one Bore sliding piston is installed.

Es ist bekannt, daß durch den reinen Kurbeltrieb die Zylinderwand und der Kolben erheblichen, in den einzelnen Hubphasen in verschiedener Richtung wirkenden, den Kolben verkantenden Re&ktionskräften ausgesetzt sind, wodurch beim Otto- und Dieselmotor beträchtliche Reibungsverluste und dadurch erhöhter Kraftstoffverbrauch entsteht, und weswegen Zylinderwand, Kolbenringe sowie die Lager der Pleuelstange und Kurbelwelle vorzeitigem Verschleiß unterliegen.It is known that the cylinder wall due to the pure crank drive and the piston considerable, in the individual stroke phases in different directions acting, the piston canting re & ction forces are exposed, whereby Considerable frictional losses in gasoline and diesel engines and, as a result, increased fuel consumption arises, and why the cylinder wall, piston rings and the bearings of the connecting rod and crankshaft are subject to premature wear.

Durch die DE-PS 26 19 645 wurde versucht, mittels Zahnstange und Zahnkranz eine Alternative zum Kurbeltrieb zu finden, das Problem der Bewegungsrichtungumschaltung und der Abbremsung der oszilierenden Masse vor Erreichung der rrotpunkte wurde j jedoch in kompliziert-umständlicher, baldigem Verschleiß verursachenden Weise gelöst.DE-PS 26 19 645 tried to use a rack and ring gear To find an alternative to the crank drive, the problem of switching the direction of movement and the deceleration of the oscillating mass before reaching the red points was j but solved in a complicated, cumbersome manner that would soon cause wear.

Bin Zahnstangen-Zahnradgetriebe zeigt die CH-PS 171 115; jedoch fehlt hier ein zuverlässiges Konzept zur Umkehr der Bewegungsrichtung.A rack and pinion transmission is shown in CH-PS 171 115; however, it is absent here is a reliable concept for reversing the direction of movement.

Der Erfindung liegt die Aufgabe zugrunde bei der Umwandlung einer hin- und hergehenden Bewegung in eine Rotationsbewegung oder umgekehrt, im Vergleich zum Kurbeltrieb die Motorreibung und damit den Kraftstoffverbrauch und den Verschleiß herabzusetzensowie auch einen ruhigeren Lauf des Motors zu ermöglichen.The invention is based on the object of converting a reciprocating motion to rotational motion or vice versa, in comparison to the crankshaft drive, the engine friction and thus the fuel consumption and wear as well as allowing the engine to run more smoothly.

Die Erfindung wird an Hand der Figuren erläutert.The invention is explained with reference to the figures.

Es zeigt Fig. 1 einen Schnitt längs der Linie II-II gemäß Fig. 2; Fig, 2 einen Schnitt längs der Linie I-I gemäß Fig. 1.1 shows a section along the line II-II according to FIG. 2; FIG. 2 shows a section along the line I-I according to FIG. 1.

Im Ausführungsbeispiel gemäß Fig. 1 sind die Gelenkketten la und 1a' mittels eines Bolzens 2 fest miteinander verbunden. Dieser Bolzen bildet mit der Bohrung an dem einen Ende der Schubstange 3 ein Gelenk, während die Bohrung am anderen Ende der Schubstange 3 mit einem im Kolben 4 eingebauten Bolzen 5 ein zweites Gelenk bildet. Dadurch sind die Ketten 1a und 1a' mit dem Kolben gelenkig verbunden.In the embodiment according to FIG. 1, the articulated chains la and 1a ' firmly connected to one another by means of a bolt 2. This bolt forms with the Hole at one end of the push rod 3 is a joint, while the hole at the other End of the push rod 3 with a bolt 5 built into the piston 4, a second joint forms. As a result, the chains 1a and 1a 'are articulated to the piston.

Durch die geringe Neigung der Schubstange 3 (50) zur Wirklinie des Kolbens entsteht innerhalb des Bereiches zwischen den in Fig. 2 angedeuteten Achsen a-a und b-b nur eine geringfügige Kolbenseitenkraft und damit eine ganz geringe Reibungsleistung durch Kolbenringe und Kolbenhemd.Due to the slight inclination of the push rod 3 (50) to the line of action of the Piston arises within the area between the axes indicated in FIG. 2 a-a and b-b only have a slight piston side force and therefore a very small one Frictional performance through piston rings and piston skirt.

Der Bereich zwischen den Achsen a-a und b-b (Fig.2) umfaßt 75 ffi des Hubvorganges. Wie vorangehend erwähnt bestehen in diesem Bereich nur ganz geringe Reibungsverluste in den beiden Gelenken an den Enden der Schubstange 3 (im Gegensatz zu den Gelenken der Pleuelstange beim Kurbeltrieb), weil diese Gelenke in dem genannten Bereich, der 75 ß des Rubvorganges ausmacht, bewegungslos sind.The area between the axes a-a and b-b (Fig.2) comprises 75 ffi of the lifting process. As mentioned above, there are only very few in this area Frictional losses in the two joints at the ends of the push rod 3 (in contrast to the joints of the connecting rod in the crank drive), because these joints in the said Area that makes up 75 ß of the rub process are motionless.

Bewegt sich wiederum der die Ketten 1a und 1a' verbindende und sie ziehende bzw. von ihnen gezogene Bolzen 2 oberhalb der in Fig. 2 angedeuteten Achse a-a oder unterhalb der in gleicher Figur angedeuteten Achse b-b, d.h. in Bereichen, in denen ein Kontakt zwischen Kette und Kettenrad besteht, wird die erfindungsgemäße Konstruktion zu einem i!ischtrieb, weil sie hier Ketten- und Kurbeltrieb zugleich ist. Zwar bestehen hier ähnliche Reibungsverluste wie beim lrbeftrieb, doch der Bereich in dem sie auftreten umfaßt lediglich 25 jJ des Hubvorganges (Fig. 2). Andererseits ist diese Reibungsleistung für die Umkehr der Bewegung in den beiden rDotpunkten unerläßlich, weil durch sie, ebenso wie beim Kurbeltrieb, die oszilierende Nasse, durch Abbremsung, in den Totpunktes nicht abrupt zum Stillstand gebracht und nach den Totpunkten nicht schlagartig beschleunigt wird.In turn, the one connecting the chains 1a and 1a 'moves and they pulling or pulled by them bolts 2 above the indicated in Fig. 2 axis a-a or below the axis b-b indicated in the same figure, i.e. in areas in where there is contact between the chain and the sprocket, the inventive Construction to an i! Ischtrieb, because here it is chain and crank drive at the same time is. Although there are frictional losses similar to those in the case of an external drive, the The area in which they occur comprises only 25 jJ of the lifting process (Fig. 2). on the other hand is this frictional power for the reversal of the movement in the two rDot points indispensable because, as with the crank drive, it causes the oscillating wetness, by braking, not brought to an abrupt stop in the dead center and after the dead center is not accelerated suddenly.

Verglichen mit dem Kurbeltrieb ist von der erfindungsgemaßen Konstruktion zur Kraftübertragung vom Kolben auf die Welle oder umgekehrt das Folgende zu erwarten: Kraftstoffersparnis wegen geringer Reibung über eine Phase von 75 50 des Hubvorganges, Weitere Kraftstoffersparnis wegen geringerer Abwärme1 bedingt durch die in dieser Phase gleichmäßigen Kolbengeschwindigkeit und der damit verbundenen gleichmäßigen Expansion der Gase beim Arbeitshub.Compared with the crank mechanism, it is of the construction according to the invention For power transmission from the piston to the shaft or vice versa, the following can be expected: Fuel savings due to low friction over a phase of 75 50 of the lifting process, Further fuel savings due to lower waste heat1 due to this Phase uniform piston speed and the associated uniform Expansion of the gases on the working stroke.

Daß die Konstruktion einfacher, robuster und die Herstellung billiger ist, Geringerer Verschleiß und ruhigerer Lauf, bedingt durch geringe Schwingungsintensität im Bereich von 75 % des Hubvorganges.That the construction is simpler, more robust and the production cheaper is, Less wear and smoother running, due to the low vibration intensity in the range of 75% of the lifting process.

Claims (1)

Patentanspruch Ketten-Kettenkurbeltrieb zur Umwandlung einer hin- und hergehenden Bewegung in eine Rotationsbewegung oder umgekehrt mit zwei auf je zwei Wellen angebrachten, durch åe eine Gelenkkette verbundenen Kettenräderpaaren, sowie einer Schubstange, an deren einem Ende sich ein die beiden Ketten verbindendes Gelenk und ihrem anderen Ende ein zweites Gelenk befindet, das in einem in einer Bohrung gleitendem Kolben eingebaut ists d & a d u r c h g e k e n n z e i c h n e daß die beiden Gelenkketten (la, 1a') durch einen Bolzen (2) fest miteinander verbunden sind, daß der Bolzen (2) mit dem einem Ende der Schubstange (3) ein Gelenk bildet, während das andere Ende der Schubstange (3) mit einem in Kolben (4) angebrachten Bolzen (5) ein zweites Gelenk bildet, daß die zwei, die Kettenräder (6a, 6b, 6a', 6b') treibenden bzw. von diesen getriebenen Gelenkketten (1a, 1a') mit dem in einer Bohrung gleitendem Kolben (4) gelenkig verbunden sind. Patent claim chain-chain crank drive for converting a back and moving motion into a rotational motion or vice versa with two on each sprocket pairs attached to two shafts and connected by a link chain, as well as a push rod, at one end of which a connecting rod connects the two chains Joint and at its other end is a second joint that is in one in one Bore sliding piston is installed d & a d u r c h e k e n n n z e i c h n e that the two link chains (la, 1a ') are fixed to one another by means of a bolt (2) are connected that the bolt (2) with one end of the push rod (3) is a joint forms, while the other end of the push rod (3) is attached to a piston (4) Bolt (5) forms a second joint that the two, the chain wheels (6a, 6b, 6a ', 6b ') driving or driven by these link chains (1a, 1a') with the in one Bore sliding piston (4) are articulated.
DE19843443499 1984-11-29 1984-11-29 Chain-chain crank mechanism Withdrawn DE3443499A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843443499 DE3443499A1 (en) 1984-11-29 1984-11-29 Chain-chain crank mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843443499 DE3443499A1 (en) 1984-11-29 1984-11-29 Chain-chain crank mechanism

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DE3443499A1 true DE3443499A1 (en) 1986-05-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843443499 Withdrawn DE3443499A1 (en) 1984-11-29 1984-11-29 Chain-chain crank mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043656A1 (en) * 1999-01-22 2000-07-27 Alexandr Ivanovich Furman Piston internal combustion engine
AT408249B (en) * 1999-06-11 2001-09-25 Khayat Assad Crank mechanism for internal combustion engines
FR2949392A1 (en) * 2009-08-27 2011-03-04 Peugeot Citroen Automobiles Sa Propulsion and/or pneumatic braking system for motor vehicle, has pneumatic cylinders driven by and driving belt and toothed wheel that moves wheel shaft, where cylinders are actuated by supply of compressed or free air through valves

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR449461A (en) * 1912-10-15 1913-02-27 Gustave Plaisant & Cie Soc Mechanism for transforming rectilinear, reciprocating motion into continuous circular motion
FR948297A (en) * 1947-06-23 1949-07-27 Control device for reciprocating parts
FR2381171A1 (en) * 1977-02-18 1978-09-15 Descottes Dominique Assembly for converting reciprocating to rotary motion - has piston rod engaging driving chain which delivers rotary motion via pistons and gears
GB2028954A (en) * 1978-08-08 1980-03-12 Salvati R Mechanism converting rotary into reciprocating motion
DE3002794A1 (en) * 1980-01-26 1981-07-30 Rudolf 4050 Mönchengladbach Pluntke Converter for constant speed rotation into reciprocation - has reciprocating part moving over selectable path at constant speed, driven by connecting rod
GB2089927A (en) * 1980-12-19 1982-06-30 Inventions Ltd Enterprise Device for converting rotary motion into reciprocating motion for driving vehicle headlamp wipers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR449461A (en) * 1912-10-15 1913-02-27 Gustave Plaisant & Cie Soc Mechanism for transforming rectilinear, reciprocating motion into continuous circular motion
FR948297A (en) * 1947-06-23 1949-07-27 Control device for reciprocating parts
FR2381171A1 (en) * 1977-02-18 1978-09-15 Descottes Dominique Assembly for converting reciprocating to rotary motion - has piston rod engaging driving chain which delivers rotary motion via pistons and gears
GB2028954A (en) * 1978-08-08 1980-03-12 Salvati R Mechanism converting rotary into reciprocating motion
DE3002794A1 (en) * 1980-01-26 1981-07-30 Rudolf 4050 Mönchengladbach Pluntke Converter for constant speed rotation into reciprocation - has reciprocating part moving over selectable path at constant speed, driven by connecting rod
GB2089927A (en) * 1980-12-19 1982-06-30 Inventions Ltd Enterprise Device for converting rotary motion into reciprocating motion for driving vehicle headlamp wipers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043656A1 (en) * 1999-01-22 2000-07-27 Alexandr Ivanovich Furman Piston internal combustion engine
AT408249B (en) * 1999-06-11 2001-09-25 Khayat Assad Crank mechanism for internal combustion engines
FR2949392A1 (en) * 2009-08-27 2011-03-04 Peugeot Citroen Automobiles Sa Propulsion and/or pneumatic braking system for motor vehicle, has pneumatic cylinders driven by and driving belt and toothed wheel that moves wheel shaft, where cylinders are actuated by supply of compressed or free air through valves

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