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Tensioning mechanism for a continuous belt or chain drive system

A technology of moving mechanism and tensioning arm, applied in the direction of belt/chain/gear, transmission device, mechanical equipment, etc., which can solve the problems of limited space and position

Inactive Publication Date: 2013-01-16
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While each of these configurations is satisfactory for performing its intended function, some of these configurations provide limited space and location for the tensioner drive

Method used

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  • Tensioning mechanism for a continuous belt or chain drive system
  • Tensioning mechanism for a continuous belt or chain drive system
  • Tensioning mechanism for a continuous belt or chain drive system

Examples

Experimental program
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Embodiment Construction

[0016] The terms "belt" or "chain" as used interchangeably herein are any power transmission member forming an endless loop and consisting of flexible material or articulated rigid links to allow the member to conform to the drive surface of a pulley or sprocket radius of curvature and is intended, in use, to be driven in an infinite path; and to transmit power to or derive power from the pulley or sprocket by contact with the pulley or sprocket drive face. The term "pulley" or "sprocket" as used interchangeably herein is a device rotatable about an axis and having drive surfaces radially spaced from the axis of rotation, intended to transmit power to a belt or chain engagement to drive the belt or chain on an infinite path or to take power from the belt or chain to drive an output load device. The term "guide roller" as used herein is a device rotatable about an axis and having a belt or chain contacting surface radially spaced from the axis of rotation, intended to engage th...

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PUM

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Abstract

An apparatus (10) for imparting tension to strands of an endless power transferring member loop (12) encircling a drive sprocket (14) and at least one driven sprocket (16a, 16b). Two tensioning arms (38a, 18b) are spaced apart and have guided movement relative to at least one fixed pin (26) with a tension driver (5) operably engaged with one of the tensioning arms (18a, 18b) for driving both tensioning arms (18a, 18b) in motion acting through a rotatable, motion transfer body (34) located generally centrally with respect to the endless loop power transferring member (12) for connection to corresponding motion transfer locations (30a, 30b) associated with the pair of tensioning arms (18a, 18b), either directly or indirectly. A link assembly (60) can connect first ends (40a, 40b) to the motion transfer body (34) and second locations (42a, 42b) to corresponding opposite ends of the two spaced apart tensioning arms (38a, 18b).

Description

technical field [0001] The present invention relates to a tensioning system for applying tension to a power transmission member or chain encircling a drive sprocket and at least one driven sprocket, and more particularly to a method for simultaneously tensioning multiple segments of the power transmission member or chain tensioning equipment. Background technique [0002] A chain tensioner in the engine is used to control these power transmission chains as the chain travels around the multiple sprockets. The slack in the chain changes as the temperature in the engine increases and as the chain wears. As the chain wears, the chain elongates and the slack in the chain increases. Increased slack may cause noise, slippage, or skipping between the chain and sprocket teeth. If the increased slack in the chain is not addressed, take the tensioner as an example, in an engine with a chain driven camshaft, the engine can fail because the timing of the camshaft is off by a few degre...

Claims

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Application Information

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IPC IPC(8): F16H7/08F16H7/18
CPCF16H2007/0874F16H7/08F16H2007/0812F16H2007/0806F16H2007/0893
Inventor G·L·马克利S·巴雷特
Owner BORGWARNER INC