(19)
(11) EP 0 209 499 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.08.1987 Bulletin 1987/33

(43) Date of publication A2:
21.01.1987 Bulletin 1987/04

(21) Application number: 86850141

(22) Date of filing: 21.04.1986
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 10.06.1985 CH 244285

(71) Applicant: Institut Cerac S.A.
 ()

(72) Inventor:
  • Fors, Lars Börje Staffan
     ()

   


(54) A compressor plant


(57) A compressor plant comprising two or more compressor stages. Each stage (11) comprises a driving motor (19) having variable rotary speed. Pressure sensing means (82) is provided for each stage. The speed of the compressor stage is controlled so that the pressure at the outlet (92) is kept within desired limits. Pressure gas take-off means (51) of variable capacity is provided at the outlet of each compressor stage.







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