CONTROL VALVE FOR AN OIL-INJECTED SCREW-TYPE COMPRESSOR

摘要

The invention relates to a control valve for an oil-injected screw-type compressor, in particular for installation in a vehicle, wherein oil located in a screw-type compressor housing can be supplied in a controlled manner via the control valve to a heat exchanger and/or to a bypass in such a way that cold oil is conducted through a bypass around the heat exchanger and warm oil is conducted through the heat exchanger. According to the invention, a control valve is provided for an oil-injected screw-type compressor and ensures rapid heating of the oil in the screw-type compressor even with a short activation time. This is achieved in that the control valve has a control piston (2) that is actuated by a control element (3) and co-operates respectively with a heat exchanger opening (13) disposed in a control valve housing (1) and a bypass opening (11), and that the control piston (2) controls at least one bypass opening (12) which co-operates with the heat exchanger opening (13).