Driving arrangement for a pump or compressor

US8845298B2 · kind B2 · utility

Assignees

• Ing. Per Gjerdrum AS · NO
• Techni Holding AS · NO

Inventors

• Andreas Børre Larsen · Sandvika, NO
• Jan Martin Bendiksen · Drammen, NO
• Trond Sjulstad · Svarstad, NO
• Tor Helge Brandsæter · Hvittingfoss, NO
• Ola Strand · Langesund, NO
• Christian C. Petersen · Sandwich, US

Key dates

• Filing date: Dec 8, 2009
• Grant date: Sep 30, 2014
• Expiry date: Oct 22, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K7/108
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.