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Integrated coolant gallery structure of wet double clutch gearbox

A wet dual-clutch, cooling waterway technology, applied in gear lubrication/cooling, transmission parts, belts/chains/gears, etc., can solve the problems of complicated installation and high production costs, and improve the safety of use, reduce manufacturing costs, The effect of simple overall structure

Pending Publication Date: 2019-07-23
GETRAG JIANGXI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patent CN207316051U discloses a built-in cooling system for a wet dual-clutch automatic transmission, which needs to be equipped with a special built-in cooling pipe, which is complicated to install and relatively high in production cost.

Method used

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  • Integrated coolant gallery structure of wet double clutch gearbox
  • Integrated coolant gallery structure of wet double clutch gearbox
  • Integrated coolant gallery structure of wet double clutch gearbox

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1 to Figure 4 Shown is a structural schematic diagram of the first embodiment of a wet dual-clutch transmission integrated cooling water channel structure of the present invention, including a transmission housing 1, a clutch cover 2, a coolant cover 3, a water inlet pipe 4, a water outlet pipe 5, and an O-shaped Circle Ⅱ6, mounting bolt 7 and positioning pin 8.

[0029] An annular cooling channel with one end open is provided on the clutch cover 2, and the cross section of the annular cooling channel is approximately a rectangle. Specifically, the annular cooling water channel is surrounded by the outer surface of the water channel 201, the inner surface of the water channel 202 and the bottom surface of the water channel 203, and the outer surface of the water channel 201, the inner surface of the water channel 202 and the bottom surface of the water channel 203 are all parts of the body of the clutch cover 2. Cast molding surface. An outer lip 205 a...

Embodiment 2

[0035] Such as Figure 5 Shown is a structural schematic diagram of the second embodiment of the integrated cooling channel structure of a wet dual-clutch transmission of the present invention, combined with Figure 1 to Figure 4 , it can be seen that the difference between this embodiment and Embodiment 1 is that the opening of the annular cooling water channel on the clutch cover 2 is set axially to the left, and at the same time, it is axially limited and installed at the opening end of the annular cooling water channel The coolant cover 3 is equipped with a baffle plate 10 on the clutch cover 2; in addition, in order to seal the double clutch 9 oil cavity and radially position the clutch cover 2, the positioning surface originally arranged on the heating surface 210 is changed to be arranged on an annular On the outside of the cooling water channel and away from the end of the coolant cover 3, a lip 102 that can be adapted to the positioning surface is provided at a corres...

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Abstract

An integrated coolant gallery structure of a wet double clutch gearbox comprises a gearbox housing, a clutch cover, a coolant liquid cover, a water inlet pipe, a water outlet pipe, O-shaped rings I, O-shaped rings II and a mounting bolt, wherein the clutch cover is mounted onto the gearbox housing through the mounting bolt, the O-shaped rings II which can seal oil cavities of double clutches are arranged between the gearbox housing and the clutch cover, an annular coolant gallery with one end open is integrally formed on the clutch cover, the coolant liquid cover is arranged at the open end ofthe annular coolant gallery, the water inlet pipe and the water outlet pipe penetrate through the gearbox housing and the clutch cover, and communicate with the annular coolant gallery, and the O-shaped rings I mounted on the water inlet pipe and the water outlet pipe are respectively arranged between the water inlet pipe and the clutch cover and between the water outlet pipe and the clutch cover. By integrally arranging the annular coolant gallery on the clutch cover which is simple in structure and difficultly generates casting defect, the gearbox housing is enabled to have simple structureand difficultly generate the casting defect, and simultaneously infiltration treatment can be cancelled, and therefore cost is reduced.

Description

technical field [0001] The invention relates to a transmission cooling channel structure, in particular to an integrated cooling channel structure for a wet dual-clutch transmission. Background technique [0002] The dual clutch is a very critical and important part of the dual clutch transmission. It realizes power transmission through the friction between the friction plate and the counter steel plate. When the friction plate of the dual clutch is gradually combined with the counter steel plate and achieves synchronous operation, due to the difference in rotational speed between the two, friction will occur between them and a large amount of frictional heat will be generated. If the heat cannot be dissipated in time, the high temperature environment in the dual clutch will cause the friction plates to fail, which in turn will cause the dual clutch transmission to fail. Therefore, the dual clutch must be cooled. [0003] At present, dual clutches are divided into dry dual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04
CPCF16H57/0412F16H57/0417
Inventor 柯远志凌云邓小梅田均邹伟罗婷婷符宇谢衡南
Owner GETRAG JIANGXI TRANSMISSION