F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 15/00 (2006.01) F04B 49/06 (2006.01) F04C 18/16 (2006.01) F16K 15/02 (2006.01)
Patent
CA 2121763
ABSTRACT OF THE DISCLOSURE Regulating device with starting and stopping device for screw-type compressors, and starting and stopping device used hereby. Regulating device with starting and stopping device for screw-type compressors which contain a compressor element (1), an electrical motor (2) to drive this compressor element (1), a minimum pressure valve (4) which is mounted on the outlet (5) of the compressor element (1) and a vessel (6) which is mounted between the compressor element (1) and the minimum pressure valve (4), which regulating device contains means (9) to control the motor (2), characterized in that the means (9) to control the motor (2) are means to make said motor (2) turn at a frequency-regulated rotational speed at an almost constant pressure in the vessel (6), and in that the starting and stopping device contains a non-return valve (12) which is mounted on the inlet (10) of the compressor element (1).
Atlas Copco Airpower Naamloze Vennootschap
Moffat & Co.
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