Registre Brevet WIPO
Numéro d'application EP2009066657
Numéro de publication 2010/066754
Statut Délivré - en vigueur
Date de dépôt 2009-12-08
Date de publication 2010-06-17
  • ING. PER GJERDRUM AS (Norvège)
  • TECHNI AS (Norvège)
  • Larsen, Andreas Børre
  • Bendiksen, Jan Martin
  • Sjulstad, Trond
  • Brandsæter, Tor Helge
  • Strand, Ola
  • Petersen, Christian


Driving arrangement (11) for a pump, compressor or similar, adapted to provide alternating pressure in at least two chambers (27a, 27b, 27', 27"), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressure chamber faces being pistons (21a, 21 b) or plungers having fluid connection to said chambers, which bar element (23) is reciprocally supported in a housing (19). The driving arrangement further comprises an electric motor (31) which is adapted to provide the reciprocating movement of the bar element (23).The bar element extends through the rotor (31b) of the electric motor (31). The electric motor is an electric rotary motor. The invention also relates to a pump assembly with a plurality of such driving arrangements.

Classes IPC  ?

  • F04B 43/107 - Pumps having fluid drive the fluid being actuated directly by a piston
  • F04B 43/09 - Pumps having electric drive
  • F04B 43/04 - Pumps having electric drive
  • H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa