(19)
(11) EP 0 067 934 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.01.1983 Bulletin 1983/02

(43) Date of publication A2:
29.12.1982 Bulletin 1982/52

(21) Application number: 82103026

(22) Date of filing: 08.04.1982
(84) Designated Contracting States:
CH DE FR GB LI NL SE

(30) Priority: 29.04.1981 IT 2143881

(71) Applicant: UNIVER S.R.L.
 ()

(72) Inventor:
  • Luciano, Migliori
     ()

   


(54) Compressed-air economizing device


(57) A device (5) for economizing on compressed air, or other fluids under pressure fed to pneumatic cylinders (1) used for example in the field of machines and machine-tools in general.
The device comprises a pressure reducing valve (12), arranged within a first passage (9,10,11) for feeding the fluid to the cylinder (1) to be controlled, and a single-acting valve (25) located within a second passage (22) for the return of the fluid from said cylinder (1) which passage coaxially encircles the pressure reducing valve (12), thereby achieving a device with a compact and functional structure.







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