| 摘要 |
The invention relates to a device for controlling a screw compressor, in which a rotor housing (10) includes a compression space (15) with two intermeshing rotors. In parallel with the rotors, at their discharge side two axially movable sliding valves (20, 21) are located, viz. one inner (20) and one outer sliding valve (21). The inner sliding valve (20) is movable in the outer sliding valve (21). One of the sliding valves is arranged for controlling the internal compression in the compression space (15), while the second sliding valve is arranged for controlling the capacity of the compressor.
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