Air conditioning compressor
The air conditioning compressor driven by the engine by means of a belt drive. The air-conditioning compressor is switched on and off via a magnetic coupling.
Stepless power control is possible in the air conditioning compressor. Within the A/C compressor, the delivery volume and thus the pressure in the refrigerant circuit is generated by pistons. The piston stroke is controlled by a swash plate.
The electric control valve on the A/C compressor influences the balance of forces on the swash plate and thus the adjustment of the displacement. The front electronic module (FEM) controls the control valve using a switching voltage (pulse-width-modulated). The IHKA control unit prompts the activation. For the purpose of load reduction, only the cooling power that is directly needed is generated.
The magnetic coupling for the air conditioning compressor (diesel engines) is also activated by the front electronic module (FEM).
| Item | Explanation |
|---|---|
| 1 | Air conditioning compressor |
| 2 | 4-pin plug connection |
| 3 | Belt pulley (with and without magnetic coupling) |
Notice! Air conditioning compressor without magnetic coupling!
Different motorizations have an air conditioning compressor without magnetic coupling.