(19)
(11) EP 0 985 087 A1

(12)

(43) Date of publication:
15.03.2000 Bulletin 2000/11

(21) Application number: 98925972.6

(22) Date of filing: 27.05.1998
(51) International Patent Classification (IPC)7F02B 71/04, F04B 49/22
(86) International application number:
PCT/NL9800/305
(87) International publication number:
WO 9854/450 (03.12.1998 Gazette 1998/48)
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 28.05.1997 NL 1006143

(71) Applicant: INNAS FREE PISTON B.V.
4823 AE Breda (NL)

(72) Inventor:
  • ACHTEN, Peter, Augustinus, Johannes
    NL-5613 CA Eindhoven (NL)

(74) Representative: Van Breda, Jacobus et al
Octrooibureau Los & Stigter,P.O. Box 20052
1000 HB Amsterdam
1000 HB Amsterdam (NL)

   


(54) HYDRAULIC DRIVE SYSTEM WITH CONSTANT PRESSURE IN PRESSURE CONDUIT