Method of controlling a plurality of compressors

(19)

(11)

EP 1 477 679 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	15.06.2005 Bulletin 2005/24

(43)	Date of publication A2:
	17.11.2004 Bulletin 2004/47

(21)	Application number: 04011356.5

(22)	Date of filing: 13.05.2004

(51)	International Patent Classification (IPC)⁷: F04B 49/06, F04B 41/02

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL HR LT LV MK

(30)

Priority:

15.05.2003 JP 2003137434

(71)	Applicant: ANEST IWATA CORPORATION
	Yokohama-shi, Kanagawa-ken (JP)

(72)	Inventor:
	Sato, Kazuaki, c/o Anest Iwata Corporation Yokohama-shi, Kanagawa (JP)

(74)	Representative: Dylmer, Henrik et al
	Chas. Hude A/S H.C. Andersens Boulevard 33 1780 Copenhagen V 1780 Copenhagen V (DK)

(54)	Method of controlling a plurality of compressors

(57) Compressed gases are gathered from a plurality of compressors and employed if required. A pressure of compressed gas thus gathered is measured by a pressure sensor to generate a pressure signal, which is transmitted to a control. The signal is transmitted from the control to electromagnetic switches to control motors for the compressors to determine which of the compressors run.

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