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Switchable double gear wheel for a double clutch transmission, and double clutch transmission

A dual-clutch transmission and dual-gear technology, which is applied to vehicle gearboxes, gear transmissions, belts/chains/gears, etc., can solve the problems of high cost, reduce speed difference, reduce support costs, and simplify axial support. Effect

Inactive Publication Date: 2011-09-07
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To obtain the reverse gear, one of the idler gears is arranged adjacent to the idler gear used to obtain the third forward gear, which results in a high speed difference between the two idler gears when driving in third gear, As a result, the support requirements for the idler gear are very costly

Method used

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  • Switchable double gear wheel for a double clutch transmission, and double clutch transmission
  • Switchable double gear wheel for a double clutch transmission, and double clutch transmission
  • Switchable double gear wheel for a double clutch transmission, and double clutch transmission

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Embodiment Construction

[0022] figure 1 A front-transverse (frontquer-Bauweise) dual-clutch transmission 10 is shown in FIG. In the plane of the drawing, the internal combustion drive engine 12 is located on the right. The differential 14 is coupled with wheel drive axle shafts 16 , 18 for output to the front axle 20 . The transmission shaft shown here is only shown simplified in the plane of the drawing. In a practical implementation, the four main geometric axes are offset from one another in a spatially parallel manner.

[0023] The dual clutch transmission 10 has input-side transmission input shafts, one of which is designed as a radially inner shaft 22 and the other as an outer hollow shaft 24 enclosing an axially right-hand section of this inner shaft 22 .

[0024] Two main clutches (not shown in more detail) of a dual clutch 26 are arranged on the right-hand end of the two transmission input shafts 22 , 24 , that is to say close to the drive motor. Each of the two main clutches is friction...

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Abstract

The invention relates to a switchable double gear wheel (100) for a double clutch transmission (10) and a double clutch transmission (10). In order to reduce the difficulty of supporting free gears in a double clutch transmission (10) and provide a simplified double clutch transmission (10), according to the invention, a bearing sleeve (106) is designed to be rotationally fixed to a first gear wheel body (102) and has a first bearing area for supporting a second gear wheel body (104).

Description

technical field [0001] The invention relates to a shiftable dual gear for a dual-clutch transmission and to a dual-clutch transmission. Background technique [0002] A dual-clutch transmission is known from DE 10 2004 049 832 A1, which enables seven forward gears and one reverse gear. The transmission has a hollow shaft and an inner shaft which can be coupled to a drive machine via a double clutch. In addition to the hollow shaft and the inner shaft, there are first and second countershafts, whose output pinions drive the drive gears of the differential. In order to obtain seven forward gears and one reverse gear, two fixed gears are formed on the hollow shaft and three fixed gears are formed on the inner shaft, said fixed gears respectively mesh with idler gears (Losrad) supported on the countershaft . To obtain the reverse gear, one of the idler gears is arranged adjacent to the idler gear used to obtain the third forward gear, which results in a high speed difference b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/00F16H3/093
CPCF16H2003/0931F16H2200/0056F16H2003/0807F16H3/006Y10T74/19219Y10T74/19233
Inventor I·普凡库亨H·鲁德勒
Owner DAIMLER AG
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