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WO/2009/075219A1 |
A chain tensioner in which the position of a plunger can be reliably fixed when the engine is being stopped. In a chain tensioner (1), a plunger (10) is slidably inserted in a cylinder (9). The plunger (10) is formed in a tubular shape h...
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WO/2009/074698A1 |
The invention relates to a tension adjuster for adjusting the tension of belts used to transmit the rotational movement from a first shaft to a second shaft. Said tension adjuster can primarily be applied to synchronisation belts between...
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WO/2009/074566A1 |
The invention relates to a spring element (11) that is designed for a flexible drive of an internal combustion engine. The spring element (11) comprises a cylinder (12), in which a piston (13) is guided in a linearly displaceable manner,...
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WO/2009/071396A1 |
The invention relates to a hydraulic tensioning unit for traction means, comprising a piston (5) that is oil-pressurized and disposed in a cylinder housing (1), into the piston base (6) of which a pressure relief valve (7) is incorporate...
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WO/2009/070204A2 |
An expandable pulley comprising a plurality of adjacent segments, each segment being radially moveable, each segment slidingly engaged with a pin member, each pin member having an engagement with each segment such that each segment is mo...
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WO/2009/068411A1 |
The invention relates to a tensioner (1) for a traction mechanism, especially a timing chain tensioner, which comprises a tensioning element (2) having a piston/cylinder system (3, 4). A non-return valve (7) is arranged in a feed path (5...
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WO/2009/065716A1 |
The invention relates to a traction mechanism drive (1) of an internal combustion engine, said drive being configured particularly as a belt drive, comprising a drive wheel and at least one driven wheel, which are connected by a traction...
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WO/2009/062734A1 |
The invention relates to a drive means for driving a sprocket in a polygon-compensated fashion, comprising two traction wheels (1, 2), a traction mechanism (3) running over said wheels having a top strand (31) and a bottom strand (32) an...
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WO/2009/065009A2 |
A drive configuration for driving one or more rotating sprockets (e.g., of an engine drive train), including a flexible force transmitting member forming a closed curve enclosing an area; a drive sprocket situated outside the area and dr...
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WO/2009/060150A1 |
The tensioning roller or belt or chain winder device is provided with a rolling bearing (14) comprising an inner race (30), an outer race (32) and at least one row of rolling elements (34) mounted between the races, with a pulley (12) ov...
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WO/2009/060794A1 |
A chain tensioner (1) which has a plunger easy to process and which can be produced at low cost. The plunger (3) is slidably inserted in a cylinder (2). The cylinder (2) has an oil supply path (5) for introducing hydraulic oil into a pre...
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WO/2009/060848A1 |
A chain tensioner (1) having a plunger that can be easily processed. In the chain tensioner (1), the plunger (10) is inserted in an axially slidable manner in a tube-shaped cylinder (9) having an open end and a closed end, a screw rod (1...
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WO/2009/059898A1 |
The invention relates to a hydraulic clamping unit having a piston (2) disposed in a cylinder housing (1) acted upon hydraulically, an overpressure valve (4) being integrated into said piston for protecting against overload, such that th...
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WO/2009/060479A1 |
An asymmetric damping tensioner (1; 30) for a belt drive, comprising a base (2) defining a rotation axis (A), a movable element (3; 31) hinged about the rotation axis (A), a pulley (4) idly connected to the movable element (3; 31), first...
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WO/2009/060814A1 |
A chain tensioner (1) produced at low production cost. A plunger (3) is axially slidably inserted in a closed bottom tubular cylinder (2) having one end open. The plunger (3) has a closed bottom tubular shape open at its insertion end fo...
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WO/2009/057694A1 |
A clamp mechanism (1) is provided with a case section (2); a wire (3) which penetrates the case section (2); a lever section (5); and a piston (4), which is arranged to be brought up and down in the case section (2) and holds the wire (3...
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WO/2009/053166A1 |
The invention relates to a tension and guide rail for chain drives having a rail body (2) that partially follows the course of the chain, said rail body being mounted at one end to a carrier construction in a pivoting manner via a joint ...
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WO/2009/053167A2 |
The invention relates to a hydraulic chain tensioner having a cylinder housing (2) in which a clamp plunger (1) that can have oil pressure applied thereto is disposed such that it can travel out, and having detent means acting between th...
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WO/2009/053172A1 |
The invention relates to a carrier unit (1) for installing a tensioning system (8), particularly provided for control drives of internal combustion engines. A tensioning means (9), a tension rail (16) and at least one guide rail (11, 13)...
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WO/2009/053173A1 |
The invention relates to a tensioning system (1) configured as a module solution and which has a drive gear (3) and a driven gear (5) connected via a tensioning means (4). A carrier element (8) is disposed in an installation space (6) th...
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WO/2009/053164A2 |
The invention relates to a clamping device having mechanical damping for a traction engine drive, having a fixed, bowl-shaped base part (6) and a clamping roller carrier (1) having at least one clamping roller (2) and rotatably supported...
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WO/2009/053151A1 |
The invention relates to a tensioning device (2) for the traction mechanism of a traction mechanism drive, comprising a hub arrangement that can be fastened by means of a central fastening bolt (56) to a machine structure (54). The inven...
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WO/2009/053171A2 |
The invention relates to a traction engine drive (2), the components of which are integrated into an assembly unit (6) that can be pre-completed. A guide rail (7) having a clamp rail (10) is fixed in location by means of a clamping devic...
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WO/2009/043624A1 |
The invention relates to a chain tensioner for a flexible drive. The problem of the invention is to find solutions that allow a chain tensioner for a flexible drive, especially a timing chain tensioner to be provided that is relatively i...
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WO/2009/044606A1 |
The present invention is directed to reducing wear to the mounting holes of the resin-made chain guide of the chain guide assembly. The chain guide assembly 1 includes a resin-made chain guide 10 that has a chain sliding surface 10a on w...
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WO/2009/042001A1 |
An enclosed bicycle drivetrain is provided that produces a range of drive ratios suitable for any riding purpose. The enclosure of substantially the entire drivetrain is made practical by the synergistic cooperation of a planetary drive ...
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WO/2009/041986A1 |
In chain and sprocket systems with at least two resonance modes, two or more tension reducing sprockets are oriented to cancel each other at a first resonance mode and have no effect to increase tensions at such first resonance mode. The...
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WO/2009/041341A1 |
A chain tensioner (1) of low production cost. A plunger (14) is slidably inserted in a cylinder (11) to form a pressure chamber (15) in the cylinder (11). An oil supply path (16) is provided in the cylinder (11), and a check valve (17) i...
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WO/2009/036819A2 |
The present invention relates to a chain drive module, comprising at least one chain wheel, a base body laterally covering the at least one chain wheel at least in regions, a chain guided around the at least one chain wheel, and a tensio...
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WO/2009/034950A1 |
A chain tensioner that does not produce noise when a plunger collides with a chain guide and in which abrasion at contact sections between the plunger and the chain guide is suppressed. The plunger (13) and a return spring (14) for urgin...
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WO/2009/035605A2 |
A tensioner comprising a base (10), a pivot arm (50) rotationally connected to the base, a pulley journalled to the pivot arm, a torsion spring (20) engaged between the base and the pivot arm for biasing the pivot arm, a first damping me...
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WO/2009/025710A1 |
A tensioner comprising a base, a pivot arm rotationally connected to the base, a pulley journalled to the pivot arm, a torsion spring engaged between the base and the pivot arm for biasing the pivot arm, a damping member non-rotatingly e...
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WO/2009/024196A1 |
The present invention relates to a tensioning apparatus (1), in particular for a timing chain of an internal combustion engine, having a housing (2), having a tensioning piston (3) which is guided in a piston bore (4) of the housing, and...
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WO/2009/024418A1 |
The invention relates to a belt tensioner (1) having a substantially cylindrical housing (2) and a boss (3) of a tensioning arm (7) coaxially located therein, the housing (2) and the boss (3) being rotatably supported and tensioned relat...
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WO/2009/024416A1 |
The invention relates to a tensioning device for a traction machine, for example, for the belt or chain of a belt or chain drive (2), comprising a pivotally supported tensioning lever (24) tensioned in the direction of the traction machi...
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WO/2009/024420A2 |
The invention relates to a tensioning system (1) of a traction mechanism drive, comprising a base part (2) connected in one piece to a pivot arm (5), on the end of which a tensioning roller connected to a traction drive is disposed. The ...
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WO/2009/024415A2 |
The invention relates to a hydraulic tensioning system (1) designed for tensioning a belt (11) of traction machine drives (12) in internal combustion engines. The traction machine drive (12) comprises a belt (11) circulating through an o...
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WO/2009/016797A1 |
A friction transmission belt (B) comprising a staple fiber (14) and carbon black (18) dispersed so as to be exposed on the surface of at least a pulley contact area (13) of a rubber-made belt main body (10). The staple fiber (14) contain...
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WO/2009/015174A1 |
A modular tensioner system for an engine including a modular tensioner and an application specific carrier (15). The modular tensioner includes an integral anti-rotation device (14, 24, 202), backlash adjustability, and damping element. ...
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WO/2009/011698A1 |
A passenger conveyor drive assembly (40) includes a step chain (30) and a drive wheel (44) that provides a moving force in a desired direction. A drive belt (42) has a first side that engages the drive wheel so that the drive belt (42) i...
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WO/2009/010352A1 |
The present invention relates to a hydraulic tensioning system (1), which is used in traction mechanism drives, particularly chain drives of internal combustion engines. The design of the tensioning system (1) comprises a piston (3), whi...
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WO/2009/009893A1 |
A belt tensioner comprises a belt (12) trained on a drive pulley (14) driven by a drive unit (18) mounted on a base (20) supported on air-spring bellows (28) linearly extendable under fluid pressure from a collapsed position to an extend...
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WO/2009/004240A1 |
The invention relates to a starter device (10) for a combustion engine (1), particularly of a motor vehicle, comprising: - a rotary electrical machine (11) comprising a drive member (12), - a belt (13) collaborating with the drive member...
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WO/2009/003825A1 |
Disclosed is a tensioning device for a traction mechanism, especially a chain, comprising a piston that is guided in a longitudinally movable manner within a housing and is spring-loaded against the traction mechanism, a damping device f...
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WO/2009/003829A2 |
The invention relates to a damping device of a mechanical tensioning system (1, 1') for a traction mechanism drive, for example of a motor vehicle, for damping pivoting movements of a tensioning arm (2) which is supported at one end via ...
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WO/2009/003828A1 |
The invention relates to a tensioning device (1) of a traction mechanism drive, comprising a base part (2) and a pivot arm (9), between which base part (2) and pivot arm (9) is inserted a torsional spring (17) which exerts both a torque ...
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WO/2009/001574A1 |
A belt mounting jig with which a user can easily mount a belt on pulleys while mounting the belt mounting jig on a pulley on the small-diameter side, or on the low-load side. The belt mounting jig (1) has a holding surface (7) for holdin...
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WO/2009/000354A1 |
The present invention relates to a tensioning device for an endless drive such as a chain drive on an internal combustion engine, having a housing, having a tensioning piston which is guided in a movable manner in the housing, having a s...
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WO/2009/002029A2 |
Hydraulic tensioner of the present invention comprises housing having piston bore that extends in the axial direction and opens at one end; hollow piston fitted in the piston bore of the housing to slide in the axial direction, and has s...
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WO/2007/063055A9 |
In a tensioning device for a traction means, such as a belt, band or chain, having a tensioning arm (1) which is arranged on a machine part and on which an idler pulley or deflection pulley for the traction means is rotatably mounted by ...
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