present invention is in the oil-injected screw compressors to recycle the control method for controlling the on that, The compressor comprises an oil recirculation conduit (17) through to the bridge by the oil separator 10 and the compressor element (1) an oil cooler 18 is installed between and passage or bypass (30), the control is carried out by gamonseong element 34 temperature control valve 24 having a valve element 26 that is movable by. During the transition of the screw compressor from the unloaded condition to the load conditions, the action of gamonseong element 34 is temporarily stopped at least in part, the valve element 26 is at least a by-pass, regardless of the temperature of the oil, 30 characterized in that the open and thus the recirculation of oil to the compressor element (1) from the oil separator (10) takes a position that is at least temporarily caused through the by-pass (30).
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