Audi A4

Since 1994 of release

Repair and car operation


Audi А4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
- Transmission and the main transfer
   Mechanical transmission
   Noise in a transmission
   Automatic transmission
   Electronic control by a transmission
   The main transfer
   Power shafts
   Check of cuffs of power shafts
   The help at malfunctions
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics









The main transfer

The transmission and the main transfer – almost as well as in all cars with a forward drive – settle down in Audi A4 in the general case. The force transferred from the engine to a transmission, arrives on the main transfer through one small and one big gear wheel. On the big gear wheel the case of the synchronised transmission is screwed. In this case there are the conic gear wheels linked with each other, two of them are connected to power shafts.

While we go on a straight line, both lobbies of a wheel slide with frequency of rotation of the big gear wheel of the main transfer. Conic gear wheels of the case of the synchronised transmission also rotating with the same speed, are in rest. On turn external in relation to it the wheel passes longer piece of a way, than an internal wheel. Conic gear wheels now become more active: the accelerated rotation of an external wheel and its conic gear wheel through both conic gear wheels of transfer influences that conic gear wheel on internal in relation to turn to the party which rotates accordingly more slowly.