DE102013206010B3 - Belt tensioning device for attachment to generator of accessory drive of internal combustion engine, has linear tensioner, which is hinged with its first end on one clamping lever and with its second end on another clamping lever - Google Patents

Belt tensioning device for attachment to generator of accessory drive of internal combustion engine, has linear tensioner, which is hinged with its first end on one clamping lever and with its second end on another clamping lever Download PDF

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DE102013206010B3
DE102013206010B3 DE201310206010 DE102013206010A DE102013206010B3 DE 102013206010 B3 DE102013206010 B3 DE 102013206010B3 DE 201310206010 DE201310206010 DE 201310206010 DE 102013206010 A DE102013206010 A DE 102013206010A DE 102013206010 B3 DE102013206010 B3 DE 102013206010B3
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Prior art keywords
generator
clamping lever
belt
tensioner
lever
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DE201310206010
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German (de)
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Christian Hauck
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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    • 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
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • 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
    • 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
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • 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
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated members
    • 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
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0893—Circular path

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The belt tensioning device (1) has first tension roller (2) and second tension roller (3), which act on a belt with bias force in a circumferential direction before and after a belt pulley (5) of a generator. A linear tensioner (10) is provided for generating the biasing force. One clamping lever (7) is rotatably supported on another clamping lever (6), where the linear tensioner is hinged with its first end on former clamping lever and with its second end on latter clamping lever.

Description

Die Erfindung betrifft einen Riemenspanner zum Anbau an einen Generator eines Nebenaggregatetriebs einer Brennkraftmaschine. Der Riemenspanner umfasst:

  • – eine erste Spannrolle und eine zweite Spannrolle, die den Riemen in dessen Umlaufrichtung vor und hinter der Riemenscheibe des Generators mit Vorspannkraft beaufschlagen,
  • – einen die erste Spannrolle lagernden ersten Spannhebel, der konzentrisch zur Riemenscheibe des Generators drehbar auf dem Generator gelagert ist,
  • – einen die zweite Spannrolle lagernden zweiten Spannhebel, der exzentrisch zur Riemenscheibe des Generators drehbar auf dem Generator gelagert ist,
  • – und einen die Vorspannkraft erzeugenden Linearspanner.
The invention relates to a belt tensioner for attachment to a generator of an accessory drive of an internal combustion engine. The belt tensioner includes:
  • A first tension pulley and a second tension pulley, which bias the belt in the direction of rotation in front of and behind the pulley of the generator,
  • A first tensioning lever supporting the first tensioning roller, which is mounted rotatably on the generator concentrically to the belt pulley of the generator,
  • A second tensioning lever supporting the second tensioning roller and mounted rotatably on the generator eccentrically to the belt pulley of the generator,
  • - And a preload generating linear tensioner.

Hintergrund der ErfindungBackground of the invention

Ein derartiger Riemenspanner ist aus der US 2011/0070985 A1 bekannt. Der Riemenspanner ist zur Montage an einen im Nebenaggregatetrieb einer Brennkraftmaschine angeordneten Startergenerator vorgesehen. Dieser bewirkt mit seiner wechselweise Drehmoment aufnehmenden und abgebenden Riemenscheibe, d.h. im Generatorbetrieb bzw. im Startbetrieb der Brennkraftmaschine einen dementsprechenden Wechsel von Zugtrum und Leertrum des umlaufenden Riemens. Daher erfordert das Spannen des Leertrums einen Riemenspanner mit zwei Spannrollen, die den Riemen vor und hinter der Riemenscheibe vorspannen.Such a belt tensioner is from the US 2011/0070985 A1 known. The belt tensioner is provided for mounting on a arranged in the auxiliary drive of an internal combustion engine starter generator. This causes with its alternating torque receiving and donating pulley, ie in the generator mode or in the starting mode of the internal combustion engine a corresponding change of traction and slack side of the revolving belt. Therefore, the tensioning of the slack side requires a belt tensioner with two tension rollers, which bias the belt in front of and behind the pulley.

Der die erste Spannrolle lagernde erste Spannhebel ist kreisringförmig und konzentrisch zur Generatorriemenscheibe auf dem Generator gelagert. Der Drehpunkt des die zweite Spannrolle lagernden zweiten Spannhebels befindet sich ebenfalls auf dem Generator, jedoch exzentrisch zu dessen Riemenscheibe. Die Riemenvorspannung wird durch die Federkraft eines hydraulischen Linearspanners und einer Schraubendrehfeder erzeugt, die zwischen dem Generator und dem ersten Spannhebel bzw. dem Generator und dem zweiten Spannhebel eingespannt sind und die Spannhebel mit Drehmoment beaufschlagen.The first tensioning roller overlapping first tensioning lever is annular and concentric with the generator pulley mounted on the generator. The fulcrum of the second tensioning lever bearing the second tensioning roller is also located on the generator, but eccentric to the pulley. The belt bias is generated by the spring force of a hydraulic linear tensioner and a helical spring clamped between the generator and the first tension lever and the generator and the second tension lever, respectively, and apply torque to the tension levers.

Aufgabe der ErfindungObject of the invention

Ausgehend hiervon liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Riemenspanner der eingangs genannten Art konstruktiv zu verbessern.Proceeding from this, the present invention seeks to constructively improve a belt tensioner of the type mentioned.

Zusammenfassung der ErfindungSummary of the invention

Die Lösung hierfür ergibt sich aus den Merkmalen des Anspruchs 1. Demnach soll der zweite Spannhebel drehbar auf dem ersten Spannhebel gelagert sein, wobei der Linearspanner mit seinem ersten Ende am ersten Spannhebel und mit seinem zweiten Ende am zweiten Spannhebel angelenkt ist und die beiden Spannrollen aufeinander zu kraftbeaufschlagt.The solution to this arises from the features of claim 1. Accordingly, the second clamping lever should be rotatably mounted on the first clamping lever, wherein the linear tensioner is articulated with its first end on the first clamping lever and with its second end on the second clamping lever and the two tensioning rollers on each other to kraftbeaufschlagt.

Die erfindungsgemäße Einspannung oder Anlenkung des Linearspanners zwischen den beiden Spannhebeln bewirkt, dass diese nicht mehr separat gegenüber dem Generator, sondern gegenüber sich selbst angefedert sind. Eine zweite Vorspannfeder – im Falle der zitierten Druckschrift die Schraubendrehfeder – ist somit zugunsten der konstruktiven Einfachheit entbehrlich. Der so gebildete Riemenspanner ist frei drehbar auf dem Generator gelagert, und dessen Drehstellung ist je nach aktueller Position des Zugtrums und Leertrums im Riementrieb ausgerichtet. Ein Riemenspanner mit ähnlicher Kinematik ist aus der DE 10 2011 082 764 A1 und der DE 10 2011 084 680 B3 bekannt.The clamping or articulation of the linear tensioner according to the invention between the two tension levers causes them to be spring-loaded no longer separately from the generator but from itself. A second biasing spring - in the case of the cited document the helical spring - is thus unnecessary in favor of the constructive simplicity. The belt tensioner thus formed is freely rotatably mounted on the generator, and its rotational position is aligned depending on the current position of the traction and empty strand in the belt drive. A belt tensioner with similar kinematics is from the DE 10 2011 082 764 A1 and the DE 10 2011 084 680 B3 known.

Der Riemenspanner kann einen Anschlag aufweisen, der eine der Vorspanndrehrichtung entgegen gerichtete Verdrehung des zweiten Spannhebels in einer Übertotpunktlage der Anlenkung des Linearspanners am zweiten Spannhebel limitiert. Mit anderen Worten kann die zweite Spannrolle zwecks Entspannung des Riemens aus dem Riementrieb heraus gedreht und in einer stabilen Position arretiert werden, in welcher sich die Drehmomentrichtung des Linearspanners umgekehrt hat und der Linearspanner versuchen würde, die Spannrolle weiter aus dem Riementrieb heraus zu drehen. Diese stabile Position liegt zweckmäßigerweise nur einige Winkelgrade hinter der maximal komprimierten Totpunktlage des Linearspanners, um den zu überwindenden Spannwinkel am zweiten Spannhebel bei Erstmontage und Wartung des Riementriebs klein zu halten.The belt tensioner may have a stop which limits one of the pretensioning direction of rotation directed counter rotation of the second clamping lever in an over-center position of the articulation of the linear tensioner on the second clamping lever. In other words, the second tensioner may be rotated out of the belt drive for relaxation of the belt and locked in a stable position in which the torque direction of the linear tensioner has reversed and the linear tensioner would attempt to further rotate the tensioner out of the belt drive. This stable position is expediently only a few degrees behind the maximum compressed dead center position of the linear clamp in order to keep small to be overcome clamping angle on the second clamping lever during initial assembly and maintenance of the belt drive.

Für die Positionierung des Anschlags gibt es verschiedene Möglichkeiten, nämlich die Positionierung als innerer Gelenkanschlag zwischen dem Linearspanner und dem zweiten Spannhebel oder die Positionierung als äußerer Gelenkanschlag zwischen dem ersten Spannhebel und entweder dem Linearspanner oder dem zweiten Spannhebel.There are various possibilities for the positioning of the stop, namely the positioning as an inner joint stop between the linear tensioner and the second tensioning lever or the positioning as an outer joint stop between the first tensioning lever and either the linear tensioner or the second tensioning lever.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus der einzigen Figur, die einen erfindungsgemäßen Riemenspanner in Draufsicht zeigt.Further features of the invention will become apparent from the following description and from the single figure showing a belt tensioner according to the invention in plan view.

Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings

Die Figur zeigt einen Riemenspanner 1 zum frontseitigen Anbau an einen Startergenerator eines Nebenaggregatetriebs einer Brennkraftmaschine. Der Riemenspanner umfasst eine erste Spannrolle 2 und eine zweite Spannrolle 3, die in Umlaufrichtung des Riemens vor und hinter der um die Generatorachse 4 in Pfeilrichtung drehenden Riemenscheibe 5 des Startergenerators angeordnet sind und die abwechselnd das momentane Leertrum des Riemens mit Vorspannkraft beaufschlagen. Die erste Spannrolle ist ortsfest auf einem kreisringförmigen, ersten Spannhebel 6 gelagert, dessen Rückseite konzentrisch zur Riemenscheibe drehbar auf einer frontseitigen Stirnfläche des Startergenerators gleitgelagert ist. Die zweite Spannrolle ist an einem Ende eines zweiten Spannhebels 7 gelagert, der an einem hebelmittigen Gelenk 8 exzentrisch zur Riemenscheibe drehbar auf dem ersten Spannhebel gelagert ist. Das Gelenk ist weitestgehend radialspielfrei ausgeführt, um die spielbedingte Verkippung der zweiten Spannrolle zur Riemenebene möglichst klein zu halten.The figure shows a belt tensioner 1 for front attachment to a starter generator of an auxiliary drive of an internal combustion engine. The belt tensioner comprises a first tension pulley 2 and a second tension roller 3 , in the circumferential direction of the belt in front of and behind the generator axis 4 in the direction of the arrow rotating pulley 5 are arranged of the starter generator and alternately act on the current slack side of the belt with biasing force. The first tensioning roller is stationary on an annular, first tensioning lever 6 mounted, whose rear side is concentric with the pulley rotatably mounted on a front end face of the starter generator. The second tension pulley is at one end of a second tension lever 7 mounted on a lever-center joint 8th is mounted eccentrically to the pulley rotatably on the first clamping lever. The joint is designed as far as possible free of radial play in order to keep the play-related tilting of the second tensioning roller to the belt plane as small as possible.

Die Vorspannkraft wird durch die Schraubendruckfeder 9 eines Linearspanners 10 erzeugt, der mit seinem ersten Ende am ersten Spannhebel 6 und mit seinem zweiten Ende am anderen Ende des zweiten Spannhebels 7 angelenkt ist und die beiden Spannrollen 2, 3 aufeinander zu kraftbeaufschlagt. Die Reibungscharakteristik der zwischen den Anlenkpunkten 11 und 12 im Inneren der Schraubendruckfeder angeordneten Linearführung ist auf die erforderliche Schwingungsdämpfung des Riemenspanners 1 abgestimmt.The preload force is provided by the helical compression spring 9 a linear tensioner 10 generated, with its first end on the first clamping lever 6 and with its second end at the other end of the second clamping lever 7 is hinged and the two tension rollers 2 . 3 to force each other. The friction characteristic of between the articulation points 11 and 12 arranged in the interior of the helical compression spring linear guide is on the required vibration damping of the belt tensioner 1 Voted.

Die Drehlagerung des Riemenspanners 1 auf dem Startergenerator ermöglicht es, dass bei einem Betriebswechsel des Startergenerators und einem entsprechenden Wechsel von Zugtrum und Leertrum im Riemen die beiden Spannhebel 6, 7 mit den Spannrollen 2, 3 um die Generatorachse 4 verschwenken. Wenn also beispielsweise der Startergenerator vom Starterbetrieb in den Generatorbetrieb wechselt, dann wechselt das Riementrum seitens der ersten Spannrolle 2 von Zugtrum auf Leertrum und seitens der zweiten Spannrolle 3 von Leertrum auf Zugtrum. Folglich führt dieser Betriebswechsel zu einer Verschwenkung des Riemenspanners aus dem dann aktuellen Zugtrum seitens der zweiten Spannrolle heraus in das dann aktuelle Leertrum seitens der ersten Spannrolle hinein, d.h. bei der eingezeichneten Umlaufrichtung des Riemens zu einer Verschwenkung im Gegenuhrzeigersinn.The pivot bearing of the belt tensioner 1 On the starter generator, it is possible for the two tension levers to be changed in the event of a change of operation of the starter generator and a corresponding change in tension and backlash in the belt 6 . 7 with the tension rollers 2 . 3 around the generator axis 4 pivot. If, for example, the starter generator changes from starter operation to generator operation, then the belt periphery changes on the part of the first tension pulley 2 from Zugtrum on Leertrum and on the part of the second tensioner 3 from Leertrum to Zugtrum. Consequently, this change of operation leads to a pivoting of the belt tensioner from the then current Zugtrum on the part of the second tensioning pulley into the then current slack side of the first tensioning pulley, ie at the marked direction of rotation of the belt to a pivoting counterclockwise.

Diese Arbeitsweise des Riemenspanners 1, d.h. das spannende Hineinschwenken in das jeweils aktuelle Leertrum bewirkt auch eine sogenannte Entkopplung der rotierenden Startergeneratormasse von der Kurbelwelle der Brennkraftmaschine. Diese Entkopplung übernimmt üblicherweise ein Entkoppler am Generator (z.B. ein Generatorfreilauf) oder an der Kurbelwelle, der bei konventionellen Generatormaschinen ohne Startermodus auf der Generator- bzw. auf der Kurbelwelle angeordnet ist und die vergleichsweise träge rotierende Generatormasse von der Kurbelwelle abkoppelt, wenn deren Drehzahlgradient negativ ist. Das heißt, der erfindungsgemäße Riemenspanner kann auch bei konventionellen Generator-Riementrieben (ohne Startermodus) alternativ oder unterstützend zum Entkoppler verwendet werden.This operation of the belt tensioner 1 That is, the exciting pivoting into the current empty strand also causes a so-called decoupling of the rotating starter generator mass from the crankshaft of the internal combustion engine. This decoupling usually takes a decoupler on the generator (eg a generator freewheel) or on the crankshaft, which is arranged in conventional generator machines without starter mode on the generator or on the crankshaft and decouples the comparatively sluggish generator mass from the crankshaft, if the speed gradient negative is. That is, the belt tensioner according to the invention can also be used in conventional generator belt drives (without starter mode) as an alternative or as a support to the decoupler.

Bei Erstmontage und Wartung des Riementriebs wird der Riemen bei vergrößertem Abstand der beiden Spannrollen 2, 3 schlaff, d.h. vorspannungsfrei aufgelegt. During initial assembly and servicing of the belt drive, the belt becomes larger when the two tension rollers are spaced apart 2 . 3 flaccid, ie applied without tension.

Hierzu wird der zweite Spannhebel 7 entgegen der Vorspanndrehrichtung über die Totpunktlage hinaus gedreht, in der sich die Anlenkpunkte 11, 12 und das Gelenk 8 auf einer Linie befinden. Die gepunktet dargestellte Übertotpunktlage der Anlenkung 12 ergibt sich durch Limitierung dieser Verdrehung mittels eines Anschlags 13. Im Ausführungsbeispiel ist dies ein Vorsprung, der den zweiten Spannhebel am ersten Spannhebel 6 arretiert. Der Vorsprung 13 ist so positioniert, dass die Arretierung nur wenige Winkelgrade hinter der labilen Totpunktlage stabilisiert ist. Dies minimiert den zu überwindenden Spannwinkel zurück zur Totpunktlage beim Aktivieren des Riemenspanners.For this purpose, the second clamping lever 7 rotated opposite to the biasing direction beyond the dead center, in which the pivot points 11 . 12 and the joint 8th to be on a line. The dotted over-center position of the articulation 12 results from limiting this twist by means of a stop 13 , In the exemplary embodiment, this is a projection of the second clamping lever on the first clamping lever 6 locked. The lead 13 is positioned so that the locking is stabilized only a few degrees behind the unstable dead center. This minimizes the clamping angle to be overcome back to the dead center when activating the belt tensioner.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Riemenspanner tensioner
22
erste Spannrolle  first tension roller
33
zweite Spannrolle second tensioner
44
Generatorachse generator axis
55
Riemenscheibe pulley
66
erster Spannhebel first tensioning lever
77
zweiter Spannhebel second clamping lever
88th
Gelenk joint
99
Schraubendruckfeder Helical compression spring
1010
Linearspanner linear tensioner
1111
Anlenkpunkt articulation
1212
Anlenkpunkt articulation
1313
Anschlag attack

Claims (2)

Riemenspanner (1) zum Anbau an einen Generator eines Nebenaggregatetriebs einer Brennkraftmaschine, umfassend: – eine erste Spannrolle (2) und eine zweite Spannrolle (3), die den Riemen in dessen Umlaufrichtung vor und hinter der Riemenscheibe (5) des Generators mit Vorspannkraft beaufschlagen, – einen die erste Spannrolle (2) lagernden ersten Spannhebel (6), der konzentrisch zur Riemenscheibe (5) des Generators drehbar auf dem Generator gelagert ist, – einen die zweite Spannrolle (3) lagernden zweiten Spannhebel (7), der exzentrisch zur Riemenscheibe (5) des Generators drehbar auf dem Generator gelagert ist, – und einen die Vorspannkraft erzeugenden Linearspanner (10), dadurch gekennzeichnet, dass der zweite Spannhebel (7) drehbar auf dem ersten Spannhebel (6) gelagert ist, wobei der Linearspanner (10) mit seinem ersten Ende am ersten Spannhebel (6) und mit seinem zweiten Ende am zweiten Spannhebel (7) angelenkt ist und die beiden Spannrollen (2, 3) aufeinander zu kraftbeaufschlagt.Belt tensioner ( 1 ) for attachment to a generator of an accessory drive of an internal combustion engine, comprising: - a first tensioning roller ( 2 ) and a second tension roller ( 3 ), the belt in the circumferential direction in front of and behind the pulley ( 5 ) of the generator with biasing force, - a first tensioning roller ( 2 ) stored first tensioning lever ( 6 ) concentric with the pulley ( 5 ) of the generator is rotatably mounted on the generator, - a second tension roller ( 3 ) second lever ( 7 ), which is eccentric to the pulley ( 5 ) of the generator is rotatably mounted on the generator, - and a preload generating linear tensioner ( 10 ), characterized in that the second tensioning lever ( 7 ) rotatable on the first clamping lever ( 6 ), wherein the linear tensioner ( 10 ) with its first end on the first tensioning lever ( 6 ) and with its second end on the second clamping lever ( 7 ) and the two tension rollers ( 2 . 3 ) force each other towards. Riemenspanner (1) nach Anspruch 1, gekennzeichnet durch einen Anschlag (13), der eine der Vorspanndrehrichtung entgegen gerichtete Verdrehung des zweiten Spannhebels (7) in einer Übertotpunktlage der Anlenkung (12) des Linearspanners (10) am zweiten Spannhebel (7) limitiert.Belt tensioner ( 1 ) according to claim 1, characterized by a stop ( 13 ), one of the Vorspanndrehrichtung opposing rotation of the second clamping lever ( 7 ) in an over-center position of the linkage ( 12 ) of the linear tensioner ( 10 ) on the second clamping lever ( 7 ) limited.
DE201310206010 2013-04-05 2013-04-05 Belt tensioning device for attachment to generator of accessory drive of internal combustion engine, has linear tensioner, which is hinged with its first end on one clamping lever and with its second end on another clamping lever Expired - Fee Related DE102013206010B3 (en)

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DE201310206010 DE102013206010B3 (en) 2013-04-05 2013-04-05 Belt tensioning device for attachment to generator of accessory drive of internal combustion engine, has linear tensioner, which is hinged with its first end on one clamping lever and with its second end on another clamping lever

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US9709137B2 (en) 2012-12-26 2017-07-18 Litens Automotive Partnership Orbital tensioner assembly
US9759293B2 (en) 2014-10-21 2017-09-12 Litens Automotive Partnership Endless drive arrangement and improved two-armed tensioning system for same
WO2017152255A1 (en) * 2015-04-02 2017-09-14 Litens Automotive Partnership Accessory drive tensioner with improved arrangement of tensioner arm and biasing member
US9989129B2 (en) 2011-05-13 2018-06-05 Litens Automotive Partnership Intelligent belt drive system and method
US10240664B2 (en) 2014-06-20 2019-03-26 Litens Automotive Partnership Tensioner with hydraulic locking feature
CN110230675A (en) * 2019-05-20 2019-09-13 宁波丰茂远东橡胶有限公司 A kind of bi-directional association formula tensioner apparatus
US10520066B2 (en) 2014-06-26 2019-12-31 Litens Automotive Partnership Orbital tensioner assembly
US10876605B2 (en) 2015-02-06 2020-12-29 Litens Automotive Partnership Endless drive arrangement for hybrid vehicle using two-armed tensioner with non-orbiting arms
US11181171B2 (en) 2016-05-30 2021-11-23 Litens Automotive Partnership Endless drive arrangement and tensioning system for same

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US9989129B2 (en) 2011-05-13 2018-06-05 Litens Automotive Partnership Intelligent belt drive system and method
US10309497B2 (en) 2012-12-26 2019-06-04 Litens Automotive Partnership Orbital tensioner assembly
US9709137B2 (en) 2012-12-26 2017-07-18 Litens Automotive Partnership Orbital tensioner assembly
US11078993B2 (en) 2012-12-26 2021-08-03 Litens Automotive Partnership Orbital tensioner assembly
US10240664B2 (en) 2014-06-20 2019-03-26 Litens Automotive Partnership Tensioner with hydraulic locking feature
US10520066B2 (en) 2014-06-26 2019-12-31 Litens Automotive Partnership Orbital tensioner assembly
US10975939B2 (en) 2014-10-21 2021-04-13 Litens Automotive Partnership Endless drive arrangement and improved two-armed tensioning system for same
US9759293B2 (en) 2014-10-21 2017-09-12 Litens Automotive Partnership Endless drive arrangement and improved two-armed tensioning system for same
US10876605B2 (en) 2015-02-06 2020-12-29 Litens Automotive Partnership Endless drive arrangement for hybrid vehicle using two-armed tensioner with non-orbiting arms
US10393238B2 (en) 2015-04-02 2019-08-27 Litens Automotive Partnership Accessory drive tensioner with improved arrangement of tensioner arm and biasing member
CN109154366A (en) * 2015-04-02 2019-01-04 利滕斯汽车合伙公司 The stretcher for accessory drive equipment with the stretcher arm and biasing member for improving arrangement
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CN109154366B (en) * 2015-04-02 2021-10-15 利滕斯汽车合伙公司 Tensioner for accessory drive apparatus with improved arrangement of tensioner arm and biasing member
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CN110230675A (en) * 2019-05-20 2019-09-13 宁波丰茂远东橡胶有限公司 A kind of bi-directional association formula tensioner apparatus

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