Kapazitätsregelung für Verdichter mit veränderlicher Fördermenge

摘要

A differential pressure is added to an inhalation pressure on an arbitrary level by a solenoid actuated piston valve and by the inhalation pressure. The differential pressure is transmitted into a capacity variation mechanism (30) of the compressor (10) to change the compressor capacity. The capacity controller (20) is a fixed differential pressure valve controlling the differential pressure by the pressures at the ends of a piston valve (25). The solenoid of the valve is driven by a coil (21) to which current is supplied on demand.