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8142313 |
Hydraulic tensioner with overtravel limiter
A hydraulic tensioner for a drive system, including a flexible, inextensible drive element, has a bi-directional travel limiter associated with a hydraulically biased tensioning cylinder. The...
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8105194 |
Torque biased friction hinge for a tensioner
A pivot joint for a single blade spring tensioner or double blade spring tensioner generates a biased friction loss at a pivot joint. The friction torque generated in one direction of joint...
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8105195 |
Rotational one way clutch chain tensioner with frictional damping
A tensioner for a power transmission system includes two tensioning arms operatively engaged with a strand of either the chain or the belt of the power transmission system. The upper end of each...
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8100792 |
Hydraulic auto-tensioner
A hydraulic auto-tensioner includes a high-pressure oil chamber and a low-pressure oil chamber, and oil (L) in the high-pressure oil chamber passes through a clearance (G) between a cylinder (17)...
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8092327 |
Tensioner lever for chain drive
In a spring-loaded tensioner lever having a coiled torsion spring accommodated in a space inside the lever, a stopper mechanism, comprising a pin held removably in a hole in the lever, holds an arm...
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8083623 |
Shoe tensioner for a synchronous belt drive for use with oil
A shoe tensioner for a synchronous belt drive, having a guide member adapted to cooperate with a drive belt and hinged at one end about a first axis; elastic means cooperating with the guide member...
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8083622 |
Systems and methods for automatic belt tensioning in low speed, low volume fluid recovery operations
Systems and methods for automatic belt tensioning in low speed, low volume fluid recovery. A required amount of tension is maintained across the recovery system's belt driven components under...
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8066598 |
Chain tensioning apparatus with temperature-based leakdown
An apparatus for tensioning a chain is provided that compensates for the affect of temperature on oil viscosity by providing, in addition to a continuously open oil leakage path, an additional...
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8062157 |
Tensioner with an adjuster
The present invention relates to a tensioner, in particular a tensioner for a driving chain of an internal combustion engine, comprising a tensioning plunger which is axially movably guided in a...
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8052559 |
Tensioner with two way damper
A tensioner for a power transmission system includes two tensioning arms operatively engaged with the strand of the chain or the belt of the power transmission system. The upper end of each...
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8033938 |
Hydraulic tensioner
In a hydraulic tensioner, at least a part of a bar is located within a coil spring that biases a plunger in the protruding direction. The bar reduces the volume of the high pressure oil chamber of...
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8025599 |
Pivot arm tensioner with sliding ratchet mechanism
An engine chain or belt tensioning system includes a tensioner pivot arm with a ratcheting means that includes backlash in an engine timing system. The tensioner system includes a tensioner pivot...
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8020468 |
Belt tension adjustment apparatus and robot arm having the same
A belt tension adjustment apparatus and a robot arm having the belt tension adjustment apparatus are disclosed. The belt tension adjustment apparatus includes a tension measurement part for...
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8021254 |
Variable leakdown chain drive tensioner
A variable leakdown chain drive tensioner system includes a chain drive tensioner in operable communication with a chain. The chain drive tensioner includes a tensioner body with at least one...
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8002657 |
Low profile tensioner with arcuate spring
A tensioner operable to substantially maintain a specified tension in a flexible drive, such as a belt or chain, includes a spring, mounted laterally to the pivot shaft of the tensioner, which...
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8002656 |
Tensioner for endless transmission belt
A tensioner for an endless transmission belt includes a plunger body and a plunger. The plunger is movably provided in the plunger body to press the endless transmission belt. A pressure chamber...
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7980976 |
Timing belt tensioner
A tensioner for tensioning a flexible drive means, such as a timing belt or chain, includes a pulley to contact the belt. The pulley is mounted on a tensioner arm and the tensioner arm can be...
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7972232 |
Chain drive tensioner system with translating pivot point
A chain drive tensioner system with translating pivot point is disclosed. The chain drive tensioner system with translating pivot point includes a chain drive tensioner assembly and a tensioner arm...
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7955206 |
Self-energizing brake for a tensioner
A tensioner that includes a blade shoe (106), at least one blade spring (112), a ramp 122), and a brake (132). The blade shoe has a curved chain sliding face, an underside, opposite the chain...
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7927242 |
Downward angle settable hydraulic tensioner
In a hydraulic chain tensioner having a housing, a hollow plunger slidable in a plunger-accommodating hole in the housing, and a hollow sleeve extending into the plunger from a bottom of the...
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7901309 |
Tensioner for a timing chain
A tensioner has a base plate and a pivot arm. A first end of the pivot arm is pivotally mounted to the base plate for rotation about a first axis. A spring biases the pivot arm to rotate in a...
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7887445 |
Belt tensioner
A tensioner for tensioning a belt includes a support housing that defines, at least in part, a spring cavity and an arm pivotably attached to the support housing. A spring is disposed in the spring...
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7815533 |
Camshaft drive system for internal combustion engine
A camshaft drive system for an internal combustion engine includes a drive sprocket fixed upon a crankshaft of the engine and a driven sprocket fixed upon a camshaft of the engine. A flexible power...
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7794345 |
Dual backlash chain tensioner
A dual backlash tensioner includes a support having a recess therein. A plunger is slidable in the recess and includes a shoe extending outward from the recess. A first resilient member acts...
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7775921 |
Chain tensioner
A plunger 4 and a spring 6 biasing the plunger 4 outwardly are mounted in a cylinder chamber 2 formed in a housing 1. The housing 1 is provided with an oil supply passage 8 communicating with a...
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7775923 |
Chain tensioner for two-wheeled vehicle engine
A chain tensioner for use with a chain of a vehicle engine, includes a housing and a plunger slidably mounted in a cylinder chamber formed in the housing. The plunger is biased outwardly by a...
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7775924 |
Hydraulic tensioning device for a traction mechanism drive
A hydraulic tensioning device is provided for a traction mechanism drive, in particular for a chain or belt drive of an internal combustion engine. The device includes a tensioning piston which is...
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7771302 |
Apparatus for indicating power transmission belt dynamics
An apparatus for indicating an automotive power transmission belt dynamic is provided. The apparatus includes a belt tensioner including a support housing and an arm rotatably connected to the...
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7771299 |
V-belt continuously variable transmission and straddle-type vehicle
A V-belt continuously variable transmission (CVT) for a straddle-type vehicle includes a measurement plate for a rotational speed sensor for detecting a rotational speed of a primary sheave shaft...
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7766775 |
Chain tensioner
A chain tensioner includes a housing having a closed bottom. A rod is axially movably inserted in the housing for pressing a chain. A wear ring is mounted to the outer periphery of the rod and is...
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7691017 |
Hydraulic tensioner
A hydraulic tensioner comprising a piston slidably inserted in a piston bore of a housing having rack teeth on an outer circumference thereof, a piston spring biasing the piston in a protruding...
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7686717 |
Hydraulic tensioner
A tensioner for a traction drive includes a cylinder arranged in a housing at a distance to a housing wall to thereby define an interior space which contains hydraulic fluid. A piston is received...
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7678001 |
Apparatus for the intermittent drive of a spindle for a workpiece fixture, especially a forging machine
An apparatus is described for the intermittent drive of a spindle (1) for a workpiece fixture, especially a forging machine, comprising a traction gear (7) consisting of a traction means (13)...
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7641576 |
Reversible locking device for a timing chain tensioner
A reversible locking device 1 for a tensioner 100 of a timing chain 20 includes a locking device body 3, integral with the tensioner 100 and protruding with respect to the body of the tensioner...
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7641577 |
Mechanical chain tensioner with compliant blade spring
A tensioner for imparting tension to a chain having a body, a resilient chain guide element, at least one blade spring, and at least one bracket. The body of the tensioner has a surface with a...
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7641575 |
Hydraulic tensioner
The check valve unit of a hydraulic tensioner comprises a check ball, a ball guide and a disc-shaped retainer. The retainer is fixed to the high pressure oil chamber side of the ball guide by...
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7637829 |
Eccentric pivot arm tensioner
An eccentric pivot arm tensioner capable of automatic belt tensioning and substantially simultaneous operating range indexing during installation. The tensioner comprises a stop plate and...
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7632200 |
Common link dual arm tensioning device
A chain tensioning device links multiple tensioning arms to a common link, causing the tensioning arms to rotate into and displace chain strands with a single applied force and motion. The two...
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7618339 |
Hydraulic tensioner with improved relief valve
In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its...
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7597639 |
Belt tensioner
The invention is an improved tensioner for tensioning a power transmission belt. It is of the type having a pulley adapted to communicate with a surface of a power transmission belt, an arm...
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7597640 |
Long mechanical tensioner with a compliant blade spring
A tensioner for imparting tension to a chain having a body, a resilient chain guide element a support member and at least one blade spring. The body contains at least one groove on its surface...
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7572200 |
Chain drive system
A chain drive system includes a drive sprocket, a driven sprocket and a chain looped over the drive sprocket and the driven sprocket. The chain and the sprocket having respective sliding surfaces...
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7559863 |
Chain tensioner
A stepped set groove having shallow and deep portions is formed in the inner periphery of a cylinder chamber formed in a housing of a chain tensioner near its open end. A radially and elastically...
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7540817 |
Tensioner with one-way clutch
A tensioner for maintaining tension in a timing chain or belt comprises a pivotally mounted lever body biased in a direction to increase tension in the chain or belt, and having a built-in, one-way...
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7537533 |
Chain tensioning device linking two strands of a chain drive
A tensioner for imparting tension to a chain in a closed loop chain drive system of an internal combustion engine is disclosed. The tensioner contains two tensioning devices, one for each strand of...
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7527572 |
Chain tensioner
A chain tensioner includes a housing having a cylinder chamber. A plunger is slidably mounted in the cylinder chamber. A spring is mounted in the cylinder chamber to bias the plunger outwardly of...
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7513844 |
Tensioner with improved stopper
In a tensioner for a timing chain, a spring-biased plunger for urging a shoe into sliding engagement with the chain is temporarily held in a retracted condition, prior to installation of the...
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7507172 |
Timing belt tensioner with stops controlled by frictional brake
A tensioner (10) features a backstop device (40) which allows free rotation of the pivot arm (20) in one direction but not the other. Reverse rotation is prevented by friction that is able to...
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7506562 |
Ratchet assembly
A ratchet assembly includes a threaded rod and a support collar that defines a bore. A portion of the threaded rod is disposed in the axial bore of the support collar. A ratchet pawl is pivotable...
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7494434 |
Belt alternator starter accessory drive with dual tensioner
An accessory drive for an engine has a belt driven starter generator adapted for driving and being driven by the engine. In an exemplary embodiment, the drive includes a first engine drive pulley...
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