Abstract: To design a compressor system with a screw-type compressor, the housing of which has cavities for air guidance and oil separation, in an economical way for small delivery quantities, there is a disc-shaped housing with a longitudinal dimension corresponding essentially to the rotor length, and in this housing the compressed air flowing out of the compressor and mixed with oil is deflected in a radial and a peripheral direction for oil separation. The oil separator, the oil filter and the air filter are attached as separate units to the end face of this housing. The bearing plate of the drive motor is designed as a mechanical transmission space.

Abstract: A screw compressor with liquid injection wherein the units previously disposed separately from one another, such as the air filter, liquid separator, and so on, are integrated into a single housing. Various compartments are formed in the housing by means of partitions, such that the compartments provide for good separation of entrained liquid from the compressed air being achieved because of large flow cross-section, maximum utilization of the available flowpath and multiple deflection of the current of compressed air. The compact construction results in a substantially smaller overall compressor size than that of comparable known compressor plants, in a reduction of manufacturing cost and simplification of the assembly of a compressor plant.