PERFECCIONAMIENTOS EN UN COMPRESOR DE AIRE DE DESPLAZAMIENTOPOSITIVO

摘要

A rotary positive displacement air compressor includes a stator containing a rotor and having an inlet and an outlet. The inlet includes two or more inlet apertures in parallel associated with independently actuable pistons. Detecting means detects the pressure of the compressed air and produces a signal when this pressure exceeds or is less than predetermined values and thus indicates whether the rate at which air is being compressed exceeds or is less than the compressed air demand to which the compressor is subjected. The two pistons are associated with respective actuating means which are controlled by the detecting means for opening and closing each inlet aperture independently to vary the rate of air flow through the inlet.