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Cooling apparatus for continuously variable transmission

A technology of cooling device and clutch, which is applied in the direction of transmission, transmission parts, transmission control, etc., can solve the problems of increasing the cost and time of production transmission, production process and production cost, etc., so as to reduce cost and time and simplify the process Effect

Inactive Publication Date: 2013-08-28
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] For the cooling device of this traditional CVT, it is necessary to be equipped with a reversing valve 17, thus increasing the cost and time of producing the transmission
[0015] In addition, hydraulic lines 21 and 33 for connecting the reversing valve 17 are also required, which in turn causes an increase in the production process and production cost

Method used

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  • Cooling apparatus for continuously variable transmission
  • Cooling apparatus for continuously variable transmission
  • Cooling apparatus for continuously variable transmission

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Embodiment Construction

[0029] Typical embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] In the following description, although the term "clutch" is included, the term "starting clutch" should not be understood as being limited to a clutch different from a brake. On the contrary, for those of ordinary skill in the art to better understand the present invention, considering that the term "clutch" is broadly used to cover both clutches and brakes to mean a friction element, the term "launch clutch" is used to cover both the forward clutch and the reverse brake.

[0031] figure 1 is a schematic diagram showing a cooling device of a CVT according to an exemplary embodiment of the present invention. figure 2 is a schematic diagram showing a manual valve according to an exemplary embodiment of the present invention.

[0032] Such as figure 1 As shown, the CVT cooling device according to the exemplary embodiment of the present...

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Abstract

Light weight and a reduction of production cost can be achieved for a cooling apparatus of a CVT that uses a forward clutch and a reverse brake as launching clutches, when the cooling apparatus includes: a manual valve that receives and outputs a first hydraulic pressure for operating the launching clutches and that receives and outputs a second hydraulic pressure for cooling the launching clutches; a first hydraulic line for supplying the first hydraulic pressure to the manual valve; a second hydraulic line for supplying the first hydraulic pressure from the manual valve to the forward clutch; a third hydraulic line for supplying the second hydraulic pressure to the manual valve; and a fourth hydraulic line for supplying the second hydraulic pressure from the manual valve to the forward clutch.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2007-0079203 filed on Aug. 7, 2007, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a cooling device for a continuously variable transmission. More particularly, the present invention relates to a cooling device for a continuously variable transmission that enables the transmission to be lightened in weight and production cost. Background technique [0004] Generally, a continuously variable transmission employs a hydraulic torque converter as a launching member, which is a device for launching a vehicle, or a continuously variable transmission employs friction elements of a forward clutch and a reverse brake as launching members. In this case, the forward clutch works in forward gear and the reverse brake works in reverse gear. [0005] In the case of a continuously...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/04F16H57/02F16H57/035F16H59/68F16H61/00F16H61/66
CPCF16H57/0484F16H57/0473F16H37/022F16H2061/6608F16H61/00F16H61/66
Inventor 崔炳大金炫锡
Owner HYUNDAI MOTOR CO LTD