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Compression belt

A technology of pulleys and components, which is applied in the belt pressing field of continuously variable transmissions, and can solve problems such as consumption and torque reduction

Active Publication Date: 2009-02-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is evident that in this skewed orientation part of the clamping force exerted by the pulley sheaves on each side of the element lying in said curved trajectory line is dissipated, and thus, by means of friction in the variator The torque transferable between the pulleys is significantly less than desired

Method used

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Examples

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Embodiment Construction

[0022] In the drawings, the same reference signs correspond to the same or at least comparable technical features.

[0023] figure 1 The central component of a known continuously variable transmission is shown, which is usually applied to the drive train of a family car, between the engine and the driving wheels. The transmission includes two pulleys 1 and 2, which are respectively provided with two pulley wheels (pulleysheave) 4, 5, and a metal pressure belt 3 is arranged between them, which is used to transfer the rotational movement and the associated The torque is transmitted to the other pulley 2. The pulley discs 4, 5 are generally formed into a conical shape, and at least one pulley disc 4 is accommodated in the transmission in a manner that is axially movable along the corresponding pulley shaft 6, 7 carried. The transmission usually also includes an actuating device that exerts an axially oriented clamping force Fax on the at least one wheel 4, which points to the corre...

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PUM

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Abstract

The invention relates to a push belt (3) for a continuously variable transmission where the belt (3) is partly clamed between sheaves (4, 5) of a pulley (1, 2) of the transmission that comprises an endless tensile means (31) and a multitude of platelike transverse elements (33) that are provided on the tensile means (31) oriented predominantly transversely thereto and movable along its longitudinal direction, which elements (33) each show locking means (39, 40; 50, 51) for limiting a relative movement in either transverse or axial direction between two adjacent elements (33), i.e. an axial play DX, which is at most equal to the square of the element's dimension in the longitudinal direction Tact divided by the element's dimension in the axial direction Wact. <IMAGE>

Description

Technical field [0001] The present invention relates to a push belt of a continuously variable transmission, and more particularly, to a push belt for automobiles. Background technique [0002] Such belts are well known in the art, and more specifically, can be obtained from the applicant’s Dutch patent application NL-1022022 and the applicant’s European patent applications EP-A-0329206 and EP-A-0626526 It is known that the Dutch patent application NL-1022022 is incorporated herein by reference, and it has not been published before the filing date of this application. The Dutch patent application discloses the desire to achieve a belt design that can avoid the use of bumps and notches (holes) provided in conventional techniques. [0003] For example, it is known from European patent application EP-A-0329206 that such commonly provided bumps and notches are matched to each other, in which the bumps are formed into a cone shape. However, in most cases, cylindrical bumps are used. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G5/16
CPCF16G5/16F16H9/24
Inventor 科内利斯·约翰内斯·马里亚·范德梅尔罗伯特·阿诺尔德斯·安德烈亚斯·穆特塞尔斯卢卡斯·亨德里克斯·罗伯图斯·马里亚·普林森
Owner ROBERT BOSCH GMBH
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