Search

A     B     C     D     E     F     G     H     I     J     K     L     M     N     O     P     Q     R     S     T     U     V     W     X     Y     Z



All Tests
  F7     F9


 Bookstore

 Tests

 Formulary

 Engine Oil-Finder




Gearbox - front wheel drive transverse




Unequal axis transversely in case of front or mid engine


Non co-axial gearboxes are used with all drive-train set-ups, except for the front engine with rear-wheel drive. In the case of front-wheel drives, it is mostly arranged on the left, beside the transverse mounted engine and clutch. There were and still are, a few exceptions with opposite rotation, in which the engine is mounted on the left and the gearbox on the right. Previously the manufacturer Audi also produced transverse mounted rear engines, this design is nowadays only very sporadically used in the mid-engine Fiat. Completely typical for the transverse mounted gearbox is the spur gear at the gearbox output.

Engine torque from the right to the upper drive shaft

1. gear


The lower, center shift-collar (with reverse gear wheel) is shifted to the left. The smallest diagonally cut gearwheel on the axle drive shaft above, drives the largest diagonally cut gearwheel on the left beside the shift- collar, onto the drive shaft below.

2. gear


The lower, center shift-collar is shifted to the right. The second-smallest diagonally cut gearwheel on the axle drive shaft above, drives the second largest diagonally cut gearwheel on the right next the sliding clutch, onto the drive shaft below.

3. gear


The upper, right shift-collar is shifted to the left. Next to it, on the left, the diagonally cut gearwheel drives the diagonally cut gearwheel directly below, onto the drive shaft.

4. gear


The right shift-collar is shifted to the right. Next to it, on the right, the diagonally cut gearwheel drives the diagonally cut gearwheel directly below, onto the drive shaft.

5. gear


The upper, left shift-collar is shifted to the left. The largest diagonally cut gearwheel on the axle drive shaft, drives the smallest diagonally cut gearwheel onto the drive shaft below.

Reverse gear


The runback wheel on the right, next to the 1st gear on an additional shaft, is shifted to the right. The torque is transferred by the only straight-cut gearwheel on the axle drive shaft, through the reverse gearing of the shift- collar of the 1st/2nd gear, onto the drive shaft below.

Drive torque through spur-gear axle-drive below

It can also be seen that the gearbox was developed from a four-speed transmission. The fifth gear (on the right) has been added afterwards. It still has an unsynchronised reverse gear which can be recognised by the straight-cut gearing. The vehicle must be stopped completely to be able to engage the reverse gear. 10/08









Sidemap - Technik Imprint E-Mail Datenschutz Sidemap - Hersteller