Compressor HVAC: Application and ID

Component Identification:

The new A/C compressor has a single-acting swash plate (3) with variable pitch angle and 6 axial cylinders. The delivery quantity is changed by changing the swash plate angle. The swash plate (3) position depends on the pressure difference above the piston and below the piston.

The main control valve (1) increases or decreases the pressure in the crank chamber depending on the intake pressure. This changes the pitch angle of the swash plate (3) changing the stroke of all six pistons (10) to the required displacement. The auxiliary control valve (2) allows quick reaction to load changes.

The drive belt is protected by the speed sensor (A9/1) which senses the A/C compressor speed and transfers it to the AAC pushbutton control module.