3
DESIGN AND FUNCTION
3.1
General description
The compressor is an oil-lubricated, compressing,
single-stage screw compressor with one sound-
proofed enclosure.
The main components are the drive motor, the
compressor stage, the oil circuit and the electronic
control.
Oil is injected into the compressor stage for lubri-
cation, sealing and cooling.
Rolling contact bearings and gearbox are oil-lubri-
cated.
Compression principle
The compressor stages comprise a main rotor and
an auxiliary rotor with intermeshing spiral toothing.
Compression chambers are delimited by the flanks
of the toothing and the compressor casing. The ro-
tation of the rotors continuously reduces the vol-
ume in the chambers until the compressed air is
pushed out through the outlet window of the stage
casing. Screw compressors count amongst rota-
tion-displacement compressors without oscillating
masses but with a pulsing output.
Electronic control unit
The main components of the electronic control
unit are a microprocessor, a touchscreen, film-pro-
tected keys and LEDs.
Detailed description of the operating instructions
for the electronic control unit.
