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Variable tensioner

A tensioning wheel, variable technology, applied in the direction of belt/chain/gear, transmission device, mechanical equipment, etc., can solve the problems of increased installation cost of hybrid vehicles, complex belt installation structure, etc.

Inactive Publication Date: 2009-06-17
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since two tension pulleys are used, the installation structure of the belt may become complicated and the installation cost of the hybrid vehicle may increase

Method used

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  • Variable tensioner
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Embodiment Construction

[0019] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Such as figure 1 and figure 2 As shown, the variable tensioner according to the exemplary embodiment of the present invention includes a base 16 , an arm 10 , an elastic member 34 , an engine control unit 50 , and a crankshaft position sensor 60 .

[0021] Said base 16 has a cylindrical shape with its upper end open and its lower end closed. The base 16 is fixed. In addition, the base 16 includes an inner circumference 30 and an outer circumference 26 , and a protrusion 46 formed between the inner circumference 30 and the outer circumference 26 protrudes upward from the lower end.

[0022] The inner circumference 30 protrudes upward, and the first shaft insertion hole 48 is formed substantially in the middle portion and its longitudinal direction. A boss insertion groove 36 is formed between the inner circumference 30 and the protru...

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PUM

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Abstract

A variable tensioner according to an exemplary embodiment of the present invention may include: a base, an arm including a boss and a mounting portion, wherein the boss is co-axially and rotatably coupled to the base and a pulley is coaxially and rotatably mounted to the mounting portion, the arm forming an elastic member insert recess with the base, an elastic member mounted in the elastic member insert recess, one end of the elastic member fixed to the base and the other end of the elastic member fixed to the boss, and a tension actuator deforming a portion of the elastic member according to signal of an engine control unit.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2007-0131560 filed in the Korean Intellectual Property Office on December 14, 2007, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a variable tension wheel. More particularly, the present invention relates to a variable tensioner that reduces friction loss, improves fuel mileage, and durability of pulleys and belts by controlling tension of the belt according to engine speed. Background technique [0004] Typically, auxiliary mechanisms such as camshafts, alternators, power steering pumps, and air conditioner compressors are connected to the crankshaft of the engine by belts. Therefore, the power of the crankshaft is transmitted to the auxiliary mechanism through the friction force of the belt. [0005] In the event that the tension of the belt is too high, the frict...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08
CPCF16H2007/0823F16H2007/081F16H7/1281F16H2007/0885F16H7/08
Inventor 徐昇佑
Owner HYUNDAI MOTOR CO LTD