Audi A4

Since 1994 of release

Repair and car operation



Audi А4
+ Running gear
+ Regular servicing
+ Engines
- Turbo-supercharging
   turbocharger
   The valve of deenergizing of draught
   Check of adjustment of pressure of pressurisation
   The help at malfunctions
   It is faulty турбокомпрессор?
   Radiator наддувочного air
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
+ Transmission and the main transfer
+ 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 valve of deenergizing of draught

The valve of deenergizing of draught is built in a connecting hose (bypass the channel) between the soaking up party and the party of forcing of a turbo-supercharging. Sense of the valve of switching-off of draught in the following:

  1. The high-speed pressure created by a turbo-supercharging, should decrease at closed throttle заслонке (i.e. At the released pedal of gas). Otherwise air congestion would brake frequency of rotation of the compressor. That it not to admit, the valve opens bypass the channel. At the expense of it air leaves aside всасывания, and the compressor keeps frequency of rotation.
  2. If the gas pedal, the valve of switching-off of draught to a paste is again wrung out closed. Pressurisation works on complete revolutions and can submit condensed air at once. If pressurisation only grew, it would be impossible to type spontaneously capacity – at the engine would be well-known турбодыра.

Check of the valve of deenergizing of draught

If in the engine appreciable delay of increase of capacity after a draught phase the reason can be in the valve of deenergizing of draught is felt. Spend the following check:

 PERFORMANCE ORDER

  1. Dismantle the valve of deenergizing of draught.
  2. Connect to a thin operating hose of the valve of deenergizing of draught the vacuum pump or intensively пососите his mouth.
  3. The valve of deenergizing of draught should open that is well visible through knots of connection of a hose.
  4. Take the lowered pressure, whenever possible, during 30 with (if it is necessary, bend a hose).
  5. The valve of deenergizing of draught should remain at this time in the given position.
  6. Again open a hose: the valve of deenergizing of draught should be closed.
  7. Заслонка in the valve of switching-off of draught it should open and be closed easily and in each situation densely adjoin.
  8. Installation: the valve of switching-off of draught should be fixed by screw collars in all points of connection of hoses.