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Continuously variable transmission

一种无级变速器、初级的技术，应用在皮带/链条/齿轮、机械设备、传动装置等方向，能够解决成本上升、重量增加等问题，达到成本降低、零件数量少的效果

Inactive Publication Date: 2012-08-29
JATCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the configuration of JP2001-330095A uses a large number of gears and shafts, resulting in an increase in size, weight, and cost of the CVT

Method used

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Examples

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Embodiment Construction

[0015] Hereinafter, embodiments of the present invention and their advantages will be described in detail with reference to the drawings.

[0016] figure 1 A schematic configuration of a vehicle equipped with a continuously variable transmission (hereinafter referred to as “CVT”) 1 according to the first embodiment is shown. This vehicle has an engine 2 as a power source, and the power of the engine 2 is transmitted to drive wheels 5 via a starting mechanism (for example, a torque converter) 3 , a CVT 1 , and a differential mechanism 4 .

[0017] The CVT 1 has a primary pulley 11 , a secondary pulley 12 , and a belt 13 (an endless flexible member) wound between the pulleys 11 and 12 . The pulleys 11 and 12 are respectively composed of a fixed conical plate and a movable conical plate arranged opposite to the fixed conical plate. A hydraulic cylinder (not shown) is provided on the back surface of the movable conical plate, and the movable conical plate can be displaced in the...

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PUM

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Abstract

Disclosed is a continuously variable transmission provided with a first shaft to be coupled to a primary pulley so as to integrally rotate with the primary pulley, a second shaft to be coupled to a secondary pulley so as to integrally rotate with the secondary pulley, a first gear which is fit onto the first shaft and which can rotate with respect to the first shaft, a second gear which is secured to the second shaft and which meshes with the first gear, a forward clutch to connect an engine to the first shaft, and a reverse clutch to connect the engine to the first gear.

Description

technical field [0001] The present invention relates to a continuously variable transmission in which an annular flexible member (belt, chain) is wound between a pair of pulleys, and the groove width of the pulley is changed to continuously change the transmission ratio. Background technique [0002] On the input side of a continuously variable transmission (hereinafter referred to as "CVT"), a forward / reverse switching mechanism consisting of a planetary gear mechanism and a plurality of clutches is provided. The forward / backward switching of a vehicle equipped with a CVT is usually performed using this forward / backward switching mechanism. [0003] However, when switching forward and backward using a planetary gear mechanism, the axial length of the CVT becomes longer, making it difficult to downsize the CVT. Therefore, JP2001-330095A proposes a continuously variable transmission that realizes switching between forward and reverse without using a planetary gear mechanism....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/02F16H9/12
CPCF16H37/021F16H9/12F16H37/02
Inventor 堀池晃由
Owner JATCO LTD
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